android: add permissions file to root module

also changed Build.ID check to startsWith("CP1A")

.github/workflows/ci-android.yml

@@ -1,100 +1,194 @@
-name: Build APK and root module (and create nightly release)
+name: Android CI
 
 on:
   push:
     branches:
       - '*'
+    paths:
+      - 'android/**'
+      - 'root-module-manual/**'
+  pull_request:
     paths:
       - 'android/**'
   workflow_dispatch:
     inputs:
-      release:
-        description: 'Create a nightly release'
+      branch:
+        description: Branch to build
         required: true
-        type: boolean
-        default: false
-      custom_notes:
-        description: 'Custom updates to add to What''s Changed section'
-        required: false
-        type: string
+        default: main
   workflow_call:
 
 jobs:
-  build-debug-apk:
+  build:
     runs-on: ubuntu-latest
+    outputs:
+      short_sha: ${{ steps.vars.outputs.short_sha }}
+      app_version: ${{ steps.version.outputs.app_version }}
     steps:
       - uses: actions/checkout@v4
         with:
           submodules: true
+          ref: ${{ github.event_name == 'workflow_dispatch' && github.event.inputs.branch || github.ref }}
       - uses: actions/setup-java@v4
         with:
-          distribution: 'zulu'
+          distribution: zulu
           java-version: 21
       - uses: gradle/actions/setup-gradle@v4
-      - name: Build debug APK
-        run: ./gradlew assembleDebug
+      - name: Decode keystore
+        run: echo "${{ secrets.RELEASE_KEYSTORE_FILE }}" | base64 --decode > android/release.keystore
+      - name: Setup Android SDK
+        uses: android-actions/setup-android@v3
+      - name: Accept Licenses
+        run: yes | sdkmanager --licenses
+      - name: Install NDK
+        run: sdkmanager "ndk;30.0.14904198"
+      - name: Create local.properties
+        run: |
+          cat <<EOF > android/local.properties
+          RELEASE_STORE_FILE=../release.keystore
+          RELEASE_STORE_PASSWORD=${{ secrets.RELEASE_STORE_PASSWORD }}
+          RELEASE_KEY_ALIAS=${{ secrets.RELEASE_KEY_ALIAS }}
+          RELEASE_KEY_PASSWORD=${{ secrets.RELEASE_KEY_PASSWORD }}
+          EOF
+      - name: Build
+        run: ./gradlew packageReleaseArtifacts
         working-directory: android
-      - name: Upload artifact
-        uses: actions/upload-artifact@v4
+      - name: Get app version
+        id: version
+        run: echo "app_version=$(grep 'appVersionName =' android/app/build.gradle.kts | sed 's/.*= "\(.*\)"/\1/')" >> $GITHUB_OUTPUT
+      - id: vars
+        run: echo "short_sha=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT
+      - uses: actions/upload-artifact@v4
         with:
-          name: Debug APK
-          path: android/app/build/outputs/apk/**/*.apk
-  nightly-release:
+          name: apk-release
+          path: release/*release.apk
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: apk-debug
+          path: release/*debug.apk
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: root-module-release
+          path: release/*release.zip
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: root-module-debug
+          path: release/*debug.zip
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: release-bundle
+          path: release/*.aab
+
+  release:
+    if: github.event_name == 'push'
     runs-on: ubuntu-latest
-    if: github.event_name == 'push' && github.ref == 'refs/heads/release-nightly' || github.event_name == 'workflow_dispatch' && github.event.inputs.release == 'true'
-    needs: build-debug-apk
+    needs: build
     permissions:
       contents: write
+
     steps:
       - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          fetch-tags: true
       - uses: actions/download-artifact@v4
-      - name: Export APK_NAME for later use
-        run: echo "APK_NAME=LibrePods-$(echo ${{ github.sha }} | cut -c1-7).apk" >> $GITHUB_ENV
-      - name: Rename .apk file
-        run: mv "./Debug APK/debug/"*.apk "./$APK_NAME"
-      - name: Decode keystore file
-        run: echo "${{ secrets.DEBUG_KEYSTORE_FILE }}" | base64 --decode > debug.keystore
-      - name: Install apksigner
-        run: sudo apt-get update && sudo apt-get install -y apksigner
-      - name: Sign APK
-        run: |
-          apksigner sign --ks debug.keystore --ks-key-alias androiddebugkey --ks-pass pass:android --key-pass pass:android "./$APK_NAME"
-      - name: Verify APK
-        run: apksigner verify "./$APK_NAME"
-      - name: Fetch the latest non-nightly release tag
-        id: fetch-tag
-        run: echo "::set-output name=tag::$(git describe --tags $(git rev-list --tags --max-count=1))"
-      - name: Retrieve commits since the last release
-        id: get-commits
-        run: |
-          COMMITS=$(git log ${{ steps.fetch-tag.outputs.tag }}..HEAD --pretty=format:"- %s (%h)" --abbrev-commit)
-          echo "::set-output name=commits::${COMMITS}"
-      - name: Prepare release notes
-        id: release-notes
-        run: |
-          # Create a temporary file for release notes
-          NOTES_FILE=$(mktemp)
-          
-          # Process custom notes if they exist
-          if [ "${{ github.event_name }}" == "workflow_dispatch" ] && [ -n "${{ github.event.inputs.custom_notes }}" ]; then
-            CUSTOM_NOTES="${{ github.event.inputs.custom_notes }}"
-            
-            # Check if custom notes already have bullet points or GitHub-style formatting
-            if echo "$CUSTOM_NOTES" | grep -q "^\*\|^- \|http.*commit\|in #[0-9]\+"; then
-              # Already formatted, use as is
-              echo "$CUSTOM_NOTES" > "$NOTES_FILE"
-            else
-              # Add bullet point formatting
-              echo "- $CUSTOM_NOTES" > "$NOTES_FILE"
-            fi
-          fi
-          
-          echo "notes_file=$NOTES_FILE" >> $GITHUB_OUTPUT
-      - name: Zip root-module directory
-        run: sh ./build-magisk-module.sh
-      - name: Delete release if exist then create release
+        with:
+          name: apk-release
+          path: artifacts/apk-release
+
+      - uses: actions/download-artifact@v4
+        with:
+          name: apk-debug
+          path: artifacts/apk-debug
+
+      - uses: actions/download-artifact@v4
+        with:
+          name: root-module-release
+          path: artifacts/root-module-release
+
+      - uses: actions/download-artifact@v4
+        with:
+          name: root-module-debug
+          path: artifacts/root-module-debug
+      - id: prev
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
-          gh release view "nightly" && gh release delete "nightly" -y --cleanup-tag
-          gh release create "nightly" "./$APK_NAME" "./btl2capfix.zip" -p -t "Nightly Release" --notes-file "${{ steps.release-notes.outputs.notes_file }}" --generate-notes
+          TAG=$(gh release list \
+            --limit 1 \
+            --json tagName \
+            --jq '.[0].tagName')
+
+          echo "tag=$TAG" >> $GITHUB_OUTPUT
+      - id: changelog
+        run: |
+          if [ -z "${{ steps.prev.outputs.tag }}" ]; then
+            NOTES=$(git log --pretty=format:"- %s ([%h](https://github.com/kavishdevar/librepods/commit/%H))")
+          else
+            NOTES=$(git log ${{ steps.prev.outputs.tag }}..HEAD --pretty=format:"- %s ([%h](https://github.com/kavishdevar/librepods/commit/%H))")
+          fi
+          echo "notes<<EOF" >> $GITHUB_OUTPUT
+          echo "$NOTES" >> $GITHUB_OUTPUT
+          echo "EOF" >> $GITHUB_OUTPUT
+
+      - id: tag
+        run: echo "tag=nightly-${{ needs.build.outputs.short_sha }}" >> $GITHUB_OUTPUT
+
+      - env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          gh release create "${{ steps.tag.outputs.tag }}" \
+            artifacts/**/* \
+            -t "Nightly ${{ needs.build.outputs.short_sha }}" \
+            --notes "${{ steps.changelog.outputs.notes }}" \
+            --prerelease
+      - name: Get timestamp
+        id: timestamp
+        run: echo "timestamp=$(date -u +%Y-%m-%dT%H:%M:%SZ)" >> $GITHUB_OUTPUT
+      - name: Post to Discord
+        run: |
+          curl -X POST "${{ secrets.DISCORD_ANDROID_CI_URL }}?with_components=true" \
+            -H "Content-Type: application/json" \
+            -d '{
+              "embeds": [
+                {
+                  "title": "LibrePods Nightly Build",
+                  "description": "Download the latest debug and release APKs.",
+                  "color": 253060,
+                  "fields": [
+                    {
+                      "name": "Changelog",
+                      "value": "${{ steps.changelog.outputs.notes }}",
+                      "inline": false
+                    }
+                  ],
+                  "timestamp": "${{ steps.timestamp.outputs.timestamp }}",
+                  "footer": {
+                    "text": "GitHub Actions"
+                  }
+                }
+              ],
+              "components": [
+                {
+                  "type": 1,
+                  "components": [
+                    {
+                      "type": 2,
+                      "label": "Download Release APK",
+                      "style": 5,
+                      "url": "https://github.com/kavishdevar/librepods/releases/download/nightly-${{ needs.build.outputs.short_sha }}/LibrePods-FOSS-v${{ needs.build.outputs.app_version }}-release.apk"
+                    },
+                    {
+                      "type": 2,
+                      "label": "Download Debug APK",
+                      "style": 5,
+                      "url": "https://github.com/kavishdevar/librepods/releases/download/nightly-${{ needs.build.outputs.short_sha }}/LibrePods-FOSS-v${{ needs.build.outputs.app_version }}-debug.apk"
+                    }
+                  ]
+                }
+              ]
+            }'

.gitignore

@@ -1,10 +1,5 @@
-root-module/radare2-5.9.9-android-aarch64.tar.gz
-wak.toml
-log.txt
-btl2capfix.zip
-root-module-manual
+release
 .vscode
-testing.py
 .DS_Store
 CMakeLists.txt.user*
 

Proximity Pairing Message.md

@@ -1,164 +0,0 @@
-# Bluetooth Low Energy (BLE) - Apple Proximity Pairing Message
-
-This document describes how the AirPods BLE "Proximity Pairing Message" is parsed and interpreted in the application. This message is broadcast by Apple devices (such as AirPods) and contains key information about the device's state, battery, and other properties.
-
-## Overview
-
-When scanning for BLE devices, the application looks for manufacturer data with Apple's ID (`0x004C`). If the data starts with `0x07`, it is identified as a Proximity Pairing Message. The message contains various fields, each representing a specific property of the AirPods.
-
-## Proximity Pairing Message Structure
-
-| Byte Index | Field Name              | Description                                             | Example Value(s)         |
-|------------|-------------------------|---------------------------------------------------------|--------------------------|
-| 0          | Prefix                  | Message type (should be `0x07` for proximity pairing)   | `0x07`                   |
-| 1          | Length                  | Length of the message                                   | `0x12`                   |
-| 2          | Pairing Mode            | `0x01` = Paired, `0x00` = Pairing mode                 | `0x01`, `0x00`           |
-| 3-4        | Device Model            | Big-endian: [3]=high, [4]=low                          | `0x0E20` (AirPods Pro)   |
-| 5          | Status                  | Bitfield, see below                                    | `0x62`                   |
-| 6          | Pods Battery Byte       | Nibbles for left/right pod battery                     | `0xA7`                   |
-| 7          | Flags & Case Battery    | Upper nibble: case battery, lower: flags               | `0xB3`                   |
-| 8          | Lid Indicator           | Bits for lid state and open counter                    | `0x09`                   |
-| 9          | Device Color            | Color code                                             | `0x02`                   |
-| 10         | Connection State        | Enum, see below                                        | `0x04`                   |
-| 11-26      | Encrypted Payload       | 16 bytes, not parsed                                   |                          |
-
-## Field Details
-
-### Device Model
-
-| Value (hex) | Model Name                |
-|-------------|--------------------------|
-| 0x0220      | AirPods 1st Gen          |
-| 0x0F20      | AirPods 2nd Gen          |
-| 0x1320      | AirPods 3rd Gen          |
-| 0x1920      | AirPods 4th Gen          |
-| 0x1B20      | AirPods 4th Gen (ANC)    |
-| 0x0A20      | AirPods Max              |
-| 0x1F20      | AirPods Max (USB-C)      |
-| 0x0E20      | AirPods Pro              |
-| 0x1420      | AirPods Pro 2nd Gen      |
-| 0x2420      | AirPods Pro 2nd Gen (USB-C) |
-
-### Status Byte (Bitfield)
-
-| Bit | Meaning                        | Value if Set |
-|-----|--------------------------------|-------------|
-| 0   | Right Pod In Ear (XOR logic)   | true        |
-| 1   | Right Pod In Ear (XOR logic)   | true        |
-| 2   | Both Pods In Case              | true        |
-| 3   | Left Pod In Ear (XOR logic)    | true        |
-| 4   | One Pod In Case                | true        |
-| 5   | Primary Pod (1=Left, 0=Right)  | true/false  |
-| 6   | This Pod In Case               | true        |
-
-### Ear Detection Logic
-
-The in-ear detection uses XOR logic based on:
-- Whether the right pod is primary (`areValuesFlipped`)
-- Whether this pod is in the case (`isThisPodInTheCase`)
-
-```cpp
-bool xorFactor = areValuesFlipped ^ deviceInfo.isThisPodInTheCase;
-deviceInfo.isLeftPodInEar = xorFactor ? (status & 0x08) != 0 : (status & 0x02) != 0;  // Bit 3 or 1
-deviceInfo.isRightPodInEar = xorFactor ? (status & 0x02) != 0 : (status & 0x08) != 0; // Bit 1 or 3
-```
-
-### Primary Pod
-
-Determined by bit 5 of the status byte:
-- `1` = Left pod is primary
-- `0` = Right pod is primary
-
-This affects:
-1. Battery level interpretation (which nibble corresponds to which pod)
-2. Microphone assignment
-3. Ear detection logic
-
-### Microphone Status
-
-The active microphone is determined by:
-```cpp
-deviceInfo.isLeftPodMicrophone = primaryLeft ^ deviceInfo.isThisPodInTheCase;
-deviceInfo.isRightPodMicrophone = !primaryLeft ^ deviceInfo.isThisPodInTheCase;
-```
-
-### Pods Battery Byte
-
-- Upper nibble: one pod battery (depends on primary)
-- Lower nibble: other pod battery
-
-| Value | Meaning         |
-|-------|----------------|
-| 0x0-0x9 | 0-90% (x10)  |
-| 0xA-0xE | 100%         |
-| 0xF     | Not available|
-
-### Flags & Case Battery Byte
-
-- Upper nibble: case battery (same encoding as pods)
-- Lower nibble: flags
-
-#### Flags (Lower Nibble)
-
-| Bit | Meaning                  |
-|-----|--------------------------|
-| 0   | Right Pod Charging (XOR) |
-| 1   | Left Pod Charging (XOR)  |
-| 2   | Case Charging            |
-
-### Lid Indicator
-
-| Bits | Meaning                |
-|------|------------------------|
-| 0-2  | Lid Open Counter       |
-| 3    | Lid State (0=Open, 1=Closed) |
-
-### Device Color
-
-| Value | Color        |
-|-------|-------------|
-| 0x00  | White       |
-| 0x01  | Black       |
-| 0x02  | Red         |
-| 0x03  | Blue        |
-| 0x04  | Pink        |
-| 0x05  | Gray        |
-| 0x06  | Silver      |
-| 0x07  | Gold        |
-| 0x08  | Rose Gold   |
-| 0x09  | Space Gray  |
-| 0x0A  | Dark Blue   |
-| 0x0B  | Light Blue  |
-| 0x0C  | Yellow      |
-| 0x0D+ | Unknown     |
-
-### Connection State
-
-| Value | State         |
-|-------|--------------|
-| 0x00  | Disconnected |
-| 0x04  | Idle         |
-| 0x05  | Music        |
-| 0x06  | Call         |
-| 0x07  | Ringing      |
-| 0x09  | Hanging Up   |
-| 0xFF  | Unknown      |
-
-## Example Message
-
-| Byte Index | Example Value | Description                |
-|------------|--------------|----------------------------|
-| 0          | 0x07         | Proximity Pairing Message  |
-| 1          | 0x12         | Length                     |
-| 2          | 0x01         | Paired                     |
-| 3-4        | 0x0E 0x20    | AirPods Pro                |
-| 5          | 0x62         | Status                     |
-| 6          | 0xA7         | Pods Battery               |
-| 7          | 0xB3         | Flags & Case Battery       |
-| 8          | 0x09         | Lid Indicator              |
-| 9          | 0x02         | Device Color               |
-| 10         | 0x04         | Connection State (Idle)    |
-
----
-
-For further details, see [`BleManager`](linux/ble/blemanager.cpp) and [`BleScanner`](linux/ble/blescanner.cpp).

README.md

@@ -76,10 +76,19 @@ https://github.com/user-attachments/assets/43911243-0576-4093-8c55-89c1db5ea533
 
 ### Root Requirement
 
-If you are using ColorOS/OxygenOS 16, Android 16 QPR3, Android 17 Beta 3 or higher, you don't need root except for customizing transparency mode, setting up hearing aid, and use Bluetooth Multipoint. Changing ANC, conversational awareness, ear detection, and other customizations will work without root.
+LibrePods **may** require root depending on your device/OS and what features you want access to:
 
-For everyone else:
-**You must have a rooted device with Xposed to use LibrePods on Android.** 
+- Features requiring the VendorID hook ([the features marked with an asterisk here](https://github.com/kavishdevar/librepods#key-features)) will always require root regardless of your device/OS.
+- On **ColorOS/OxygenOS 16** and **Pixel devices on Android 16 QPR3** (with the latest Google Play system update), LibrePods does not need root for most features (except those requiring the VendorID hook mentioned above).
+- On other devices, LibrePods needs root because of a bug in the Android Bluetooth stack Fluoride/non-compliance of Apple with Bluetooth standards. You must have Xposed installed for the app to workaround this bug and connect to AirPods. [This issue is being tracked here](https://issuetracker.google.com/issues/371713238). Please do not comment on the issue thread. The issue has already been resolved and should be available in **Android 17** for all devices.
+
+> [!IMPORTANT]
+> This workaround with Xposed is not guaranteed to work on all devices.
+
+### Troubleshooting steps for common errors
+- Ensure the correct scope is set in LSPosed/Vector.
+- Ensure there is no root-hiding module preventing the hook from loading on the Bluetooth app.
+- Restart your phone after confirming the scope.
 
 ### A few notes
 
@@ -129,7 +138,7 @@ A huge thank you to everyone supporting the project!
 - MagicPods for Steam Deck ([website](https://magicpods.app/steamdeck/))
 - MagicPods - if you're looking for "LibrePods for Windows"  ([ms store](https://apps.microsoft.com/store/detail/9P6SKKFKSHKM) [installer](https://magicpods.app/installer/MagicPods.appinstaller) | [website](https://magicpods.app/))
 
-# Nightly / Development Builds
+# Nightly/Development Builds
 
 Want to try the latest features before they're officially released? You can grab nightly builds from GitHub Actions:
 
@@ -140,7 +149,7 @@ Want to try the latest features before they're officially released? You can grab
 4. Extract the zip and install the `.apk` on your device
 
 > [!NOTE]
-> You need to be signed in to GitHub to download artifacts. Nightly builds are debug-signed and may not auto-update — you may need to uninstall the stable version first.
+> You need to be signed in to GitHub to download artifacts. Nightly builds are debug-signed and may not auto-update. You may need to uninstall the stable version first.
 
 ### Linux (Rust)
 1. Go to the [Actions tab](https://github.com/kavishdevar/librepods/actions/workflows/ci-linux-rust.yml)

android/app/build.gradle.kts

@@ -1,42 +1,84 @@
+import java.util.Properties
+
+val appVersionName = "0.2.9"
+
 plugins {
     alias(libs.plugins.android.application)
-    alias(libs.plugins.kotlin.android)
     alias(libs.plugins.kotlin.compose)
     alias(libs.plugins.aboutLibraries)
+//    alias(libs.plugins.hilt)
     id("kotlin-parcelize")
 }
 
+val props = Properties().apply {
+    load(rootProject.file("local.properties").inputStream())
+}
+
 android {
+    signingConfigs {
+        create("release") {
+            storeFile = file(props["RELEASE_STORE_FILE"] as String)
+            storePassword = props["RELEASE_STORE_PASSWORD"] as String
+            keyAlias = props["RELEASE_KEY_ALIAS"] as String
+            keyPassword = props["RELEASE_KEY_PASSWORD"] as String
+        }
+    }
     namespace = "me.kavishdevar.librepods"
-    compileSdk = 36
+    compileSdk = 37
 
     defaultConfig {
         applicationId = "me.kavishdevar.librepods"
-        minSdk = 33
-        targetSdk = 36
-        versionCode = 9
-        versionName = "0.2.0"
+        targetSdk = 37
+        versionCode = 52
+        versionName = appVersionName
     }
-
     buildTypes {
         release {
-            isMinifyEnabled = false
+            isMinifyEnabled = true
+            isShrinkResources = true
             proguardFiles(
-                getDefaultProguardFile("proguard-android-optimize.txt"),
-                "proguard-rules.pro"
+                getDefaultProguardFile("proguard-android-optimize.txt"), "proguard-rules.pro"
             )
+            externalNativeBuild {
+                cmake {
+                    arguments += "-DCMAKE_BUILD_TYPE=Release"
+                }
+            }
+            buildConfigField("Boolean", "PLAY_BUILD", "false")
+            signingConfig = signingConfigs.getByName("release")
+            defaultConfig {
+                minSdk = 33
+            }
+        }
+        debug {
+            buildConfigField("Boolean", "PLAY_BUILD", "false")
+            signingConfig = signingConfigs.getByName("release")
+            versionNameSuffix = "-debug"
+            defaultConfig {
+                minSdk = 33
+            }
+        }
+    }
+    productFlavors {
+        create("foss") {
+            dimension = "env"
+            buildConfigField("Boolean", "PLAY_BUILD", "false")
+        }
+        create("play") {
+            dimension = "env"
+            buildConfigField("Boolean", "PLAY_BUILD", "true")
+            versionNameSuffix = "-play"
+            minSdk = 36
         }
     }
     compileOptions {
-        sourceCompatibility = JavaVersion.VERSION_1_8
-        targetCompatibility = JavaVersion.VERSION_1_8
-    }
-    kotlinOptions {
-        jvmTarget = "1.8"
+        sourceCompatibility = JavaVersion.VERSION_21
+        targetCompatibility = JavaVersion.VERSION_21
     }
     buildFeatures {
         compose = true
         viewBinding = true
+        buildConfig = true
     }
     androidResources {
         generateLocaleConfig = true
@@ -49,18 +91,22 @@ android {
     }
     sourceSets {
         getByName("main") {
-            res.srcDirs("src/main/res", "src/main/res-apple")
+            res.directories += "src/main/res-apple"
         }
     }
+
+    ndkVersion = "30.0.14904198"
+
+    flavorDimensions += "env"
 }
 
 dependencies {
+    implementation(platform(libs.androidx.compose.bom))
     implementation(libs.accompanist.permissions)
-    implementation(libs.hiddenapibypass)
     implementation(libs.androidx.core.ktx)
+    implementation(libs.androidx.lifecycle.process)
     implementation(libs.androidx.lifecycle.runtime.ktx)
     implementation(libs.androidx.activity.compose)
-    implementation(platform(libs.androidx.compose.bom))
     implementation(libs.androidx.ui)
     implementation(libs.androidx.ui.graphics)
     implementation(libs.androidx.ui.tooling.preview)
@@ -72,21 +118,101 @@ dependencies {
     implementation(libs.haze.materials)
     implementation(libs.androidx.dynamicanimation)
     implementation(libs.androidx.compose.ui)
+    implementation(libs.androidx.compose.material.icons.core)
+    implementation(libs.billing)
     debugImplementation(libs.androidx.compose.ui.tooling)
     implementation(libs.androidx.compose.foundation.layout)
     implementation(libs.aboutlibraries)
     implementation(libs.aboutlibraries.compose.m3)
-    // compileOnly(fileTree(mapOf("dir" to "libs", "include" to listOf("*.aar"))))
-    // implementation(fileTree(mapOf("dir" to "lib", "include" to listOf("*.aar"))))
-    compileOnly(files("libs/libxposed-api-100.aar"))
-    debugImplementation(files("libs/backdrop-debug.aar"))
-    releaseImplementation(files("libs/backdrop-release.aar"))
+    implementation(libs.backdrop)
+//    implementation(libs.hilt)
+//    implementation(libs.hilt.compiler)
+    compileOnly(libs.libxposed.api)
+    implementation(libs.libxposed.service)
+    implementation(libs.play.review)
+    implementation(libs.play.review.ktx)
 }
 
 aboutLibraries {
-    export{
+    export {
         prettyPrint = true
         excludeFields = listOf("generated")
         outputFile = file("src/main/res/raw/aboutlibraries.json")
     }
 }
+
+val rootModuleDir = rootProject.file("../root-module-manual")
+val releaseDir = rootProject.file("../release")
+
+fun cap(s: String) = s.replaceFirstChar { it.uppercase() }
+
+fun registerRootModuleZipTask(
+    name: String,
+    flavor: String,
+    buildType: String
+) = tasks.register<Zip>(name) {
+
+    val variantTask = "assemble${cap(flavor)}${cap(buildType)}"
+    dependsOn(variantTask)
+
+    val apkPath = "outputs/apk/$flavor/$buildType/app-$flavor-$buildType.apk"
+
+    from(rootModuleDir)
+
+    duplicatesStrategy = DuplicatesStrategy.WARN
+
+    from(layout.buildDirectory.file(apkPath)) {
+        into("system/priv-app/LibrePods")
+        rename { "LibrePods.apk" }
+    }
+
+    delete(layout.buildDirectory.dir("outputs/rootModuleZips"))
+
+    archiveFileName.set("LibrePods-FOSS-v$appVersionName-$buildType.zip")
+    destinationDirectory.set(layout.buildDirectory.dir("outputs/rootModuleZips"))
+}
+
+val zipRelease = registerRootModuleZipTask(
+    "zipReleaseModule",
+    "foss",
+    "release"
+)
+
+val zipDebug = registerRootModuleZipTask(
+    "zipDebugModule",
+    "foss",
+    "debug"
+)
+
+val collect = tasks.register<Copy>("collectReleaseArtifacts") {
+
+    dependsOn(
+        zipRelease,
+        zipDebug,
+        "bundlePlayRelease"
+    )
+
+    into(releaseDir)
+
+    from(layout.buildDirectory.dir("outputs/apk/foss/release")) {
+        include("*.apk")
+        rename(".*", "LibrePods-FOSS-v$appVersionName-release.apk")
+    }
+
+    from(layout.buildDirectory.dir("outputs/apk/foss/debug")) {
+        include("*.apk")
+        rename(".*", "LibrePods-FOSS-v$appVersionName-debug.apk")
+    }
+
+    from(layout.buildDirectory.dir("outputs/bundle/playRelease")) {
+        include("*.aab")
+    }
+
+    from(layout.buildDirectory.dir("outputs/rootModuleZips")) {
+        include("*.zip")
+    }
+}
+
+tasks.register("packageReleaseArtifacts") {
+    dependsOn(collect)
+}

android/app/proguard-rules.pro

@@ -18,4 +18,6 @@
 
 # If you keep the line number information, uncomment this to
 # hide the original source file name.
-#-renamesourcefileattribute SourceFile
+#-renamesourcefileattribute SourceFile
+
+-keep class me.kavishdevar.librepods.utils.KotlinModule { *; }

android/app/src/main/AndroidManifest.xml

@@ -17,6 +17,15 @@
     <uses-permission
         android:name="android.permission.BLUETOOTH_PRIVILEGED"
         tools:ignore="ProtectedPermissions" />
+    <uses-permission
+        android:name="android.permission.MODIFY_PHONE_STATE"
+        tools:ignore="ProtectedPermissions" />
+    <uses-permission
+        android:name="android.permission.LOCAL_MAC_ADDRESS"
+        tools:ignore="ProtectedPermissions" />
+    <uses-permission
+        android:name="android.permission.INTERACT_ACROSS_USERS"
+        tools:ignore="ProtectedPermissions" />
     <uses-permission android:name="android.permission.BLUETOOTH" />
     <uses-permission
         android:name="android.permission.BLUETOOTH_SCAN"
@@ -26,15 +35,15 @@
     <uses-permission android:name="android.permission.READ_PHONE_STATE" />
     <uses-permission android:name="android.permission.ANSWER_PHONE_CALLS" />
     <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />
-    <uses-permission android:name="android.permission.INTERNET" />
-    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"
-        tools:ignore="ScopedStorage" />
-    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"
-        android:maxSdkVersion="30" />
-    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"
-        android:maxSdkVersion="30" />
+<!--    <uses-permission android:name="android.permission.INTERNET" />-->
+<!--    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"-->
+<!--        android:maxSdkVersion="30" />-->
+<!--    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"-->
+<!--        android:maxSdkVersion="30" />-->
+    <uses-permission android:name="com.android.vending.BILLING" />
 
     <application
+        android:name=".LibrePodsApplication"
         android:allowBackup="true"
         android:dataExtractionRules="@xml/data_extraction_rules"
         android:enableOnBackInvokedCallback="true"
@@ -45,10 +54,9 @@
         android:supportsRtl="true"
         android:theme="@style/Theme.LibrePods"
         android:description="@string/app_description"
-        tools:ignore="UnusedAttribute"
-        tools:targetApi="31">
+        tools:ignore="UnusedAttribute" >
         <receiver
-            android:name=".widgets.NoiseControlWidget"
+            android:name=".presentation.widgets.NoiseControlWidget"
             android:exported="false">
             <intent-filter>
                 <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
@@ -60,7 +68,7 @@
         </receiver>
 
         <receiver
-            android:name=".widgets.BatteryWidget"
+            android:name=".presentation.widgets.BatteryWidget"
             android:exported="false">
             <intent-filter>
                 <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
@@ -114,17 +122,17 @@
                 <action android:name="android.service.quicksettings.action.QS_TILE" />
             </intent-filter>
         </service>
-        <service
-            android:name=".services.AppListenerService"
-            android:permission="android.permission.BIND_ACCESSIBILITY_SERVICE"
-            android:exported="true">
-            <intent-filter>
-                <action android:name="android.accessibilityservice.AccessibilityService" />
-            </intent-filter>
-            <meta-data
-                android:name="android.accessibilityservice"
-                android:resource="@xml/app_listener_service_config" />
-        </service>
+<!--        <service-->
+<!--            android:name=".services.AppListenerService"-->
+<!--            android:permission="android.permission.BIND_ACCESSIBILITY_SERVICE"-->
+<!--            android:exported="true">-->
+<!--            <intent-filter>-->
+<!--                <action android:name="android.accessibilityservice.AccessibilityService" />-->
+<!--            </intent-filter>-->
+<!--            <meta-data-->
+<!--                android:name="android.accessibilityservice"-->
+<!--                android:resource="@xml/app_listener_service_config" />-->
+<!--        </service>-->
         <receiver
             android:name=".receivers.BootReceiver"
             android:enabled="true"

android/app/src/main/cpp/CMakeLists.txt

@@ -3,10 +3,55 @@ cmake_minimum_required(VERSION 3.22.1)
 project("l2c_fcr_hook")
 set(CMAKE_CXX_STANDARD 23)
 
-add_library(${CMAKE_PROJECT_NAME} SHARED
-        l2c_fcr_hook.cpp
-        l2c_fcr_hook.h)
+add_library(bluetooth_socket SHARED
+        bluetooth_socket.cpp
+)
 
-target_link_libraries(${CMAKE_PROJECT_NAME}
+target_compile_options(bluetooth_socket PRIVATE
+        -O2
+        -fvisibility=hidden
+)
+
+target_link_options(bluetooth_socket PRIVATE
+        -Wl,--strip-all
+        -Wl,--gc-sections
+)
+
+target_link_libraries(bluetooth_socket
         android
-        log)
+        log
+)
+
+
+set(XPOSED_SRC_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../../xposed/cpp)
+
+add_library(l2c_fcr_hook SHARED
+        l2c_fcr_hook.cpp
+
+        xz/xz_crc32.c
+        xz/xz_crc64.c
+        xz/xz_sha256.c
+        xz/xz_dec_stream.c
+        xz/xz_dec_lzma2.c
+        xz/xz_dec_bcj.c
+)
+
+target_include_directories(l2c_fcr_hook PRIVATE
+        xz
+)
+
+target_compile_definitions(l2c_fcr_hook PRIVATE
+        XZ_DEC_X86
+        XZ_DEC_ARM
+        XZ_DEC_ARMTHUMB
+        XZ_DEC_ARM64
+        XZ_DEC_ANY_CHECK
+        XZ_USE_CRC64
+        XZ_USE_SHA256
+        XZ_DEC_CONCATENATED
+)
+
+target_link_libraries(l2c_fcr_hook
+        android
+        log
+)

android/app/src/main/cpp/bluetooth_socket.cpp

@@ -0,0 +1,68 @@
+#include <jni.h>
+#include <pthread.h>
+#include <array>
+#include <string>
+
+static JavaVM* gVm = nullptr;
+
+template<size_t N>
+constexpr auto encryptString(const char (&str)[N], char key) {
+    std::array<char, N> encrypted{};
+    for (size_t i = 0; i < N; i++) {
+        encrypted[i] = str[i] ^ key;
+    }
+    return encrypted;
+}
+
+template<size_t N>
+static std::string decryptString(const std::array<char, N>& encrypted, char key) {
+    std::string result(N - 1, '\0');
+    for (size_t i = 0; i < N - 1; i++) {
+        result[i] = encrypted[i] ^ key;
+    }
+    return result;
+}
+
+#define ENC(str) encryptString(str, 0x47)
+#define DEC(arr) decryptString(arr, 0x47).c_str()
+
+__attribute__((visibility("hidden")))
+static JavaVM* getVm() { return gVm; }
+
+__attribute__((visibility("default")))
+JNIEXPORT jint JNI_OnLoad(JavaVM* vm, void* reserved) {
+    gVm = vm;
+
+    auto fn = [](void*) -> void* {
+        constexpr auto c1 = ENC("dalvik/system/VMRuntime");
+        constexpr auto c2 = ENC("getRuntime");
+        constexpr auto c3 = ENC("()Ldalvik/system/VMRuntime;");
+        constexpr auto c4 = ENC("setHiddenApiExemptions");
+        constexpr auto c5 = ENC("([Ljava/lang/String;)V");
+        constexpr auto c6 = ENC("java/lang/String");
+        constexpr auto c7 = ENC("Landroid/bluetooth/BluetoothSocket;");
+        constexpr auto c8 = ENC("Landroid/bluetooth/BluetoothDevice;");
+
+        JNIEnv* env;
+        getVm()->AttachCurrentThread(&env, nullptr);
+
+        jclass vmRuntime = env->FindClass(DEC(c1));
+        jmethodID getRuntime = env->GetStaticMethodID(vmRuntime, DEC(c2), DEC(c3));
+        jmethodID setExemptions = env->GetMethodID(vmRuntime, DEC(c4), DEC(c5));
+
+        jobject runtime = env->CallStaticObjectMethod(vmRuntime, getRuntime);
+        jobjectArray prefixes = env->NewObjectArray(
+                2, env->FindClass(DEC(c6)), nullptr);
+        env->SetObjectArrayElement(prefixes, 0, env->NewStringUTF(DEC(c7)));
+        env->SetObjectArrayElement(prefixes, 1, env->NewStringUTF(DEC(c8)));
+
+        env->CallVoidMethod(runtime, setExemptions, prefixes);
+        getVm()->DetachCurrentThread();
+        return nullptr;
+    };
+
+    pthread_t t;
+    pthread_create(&t, nullptr, fn, nullptr);
+    pthread_join(t, nullptr);
+    return JNI_VERSION_1_6;
+}

android/app/src/main/cpp/l2c_fcr_hook.cpp

@@ -16,476 +16,420 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-#include <cstdint>
-#include <cstring>
-#include <dlfcn.h>
 #include <android/log.h>
-#include <fstream>
+#include <cstring>
 #include <string>
-#include <sys/system_properties.h>
-#include "l2c_fcr_hook.h"
-#include <cerrno>
-#include <cstdlib>
+#include <vector>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include <elf.h>
+#include <atomic>
+#include <jni.h>
 
-#define LOG_TAG "AirPodsHook"
+#include "l2c_fcr_hook.h"
+
+extern "C" {
+#include "xz.h"
+}
+
+#define LOG_TAG "LibrePodsHook"
 #define LOGI(...) __android_log_print(ANDROID_LOG_INFO, LOG_TAG, __VA_ARGS__)
 #define LOGE(...) __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, __VA_ARGS__)
 
 static HookFunType hook_func = nullptr;
-#define L2CEVT_L2CAP_CONFIG_REQ     4
-#define L2CEVT_L2CAP_CONFIG_RSP 15
 
-struct t_l2c_lcb;
-typedef struct _BT_HDR {
-    uint16_t event;
-    uint16_t len;
-    uint16_t offset;
-    uint16_t layer_specific;
-    uint8_t data[];
-} BT_HDR;
+static uint8_t (*original_l2c_fcr_chk_chan_modes)(void *) = nullptr;
 
-typedef struct {
-    uint8_t mode;
-    uint8_t tx_win_sz;
-    uint8_t max_transmit;
-    uint16_t rtrans_tout;
-    uint16_t mon_tout;
-    uint16_t mps;
-} tL2CAP_FCR;
+static tBTA_STATUS (*original_BTA_DmSetLocalDiRecord)(tSDP_DI_RECORD *, uint32_t *) = nullptr;
 
-// Flow spec structure
-typedef struct {
-    uint8_t  qos_present;
-    uint8_t  flow_direction;
-    uint8_t  service_type;
-    uint32_t token_rate;
-    uint32_t token_bucket_size;
-    uint32_t peak_bandwidth;
-    uint32_t latency;
-    uint32_t delay_variation;
-} FLOW_SPEC;
+static std::atomic<bool> enableSdpHook(false);
 
-// Configuration info structure
-typedef struct {
-    uint16_t result;
-    uint16_t mtu_present;
-    uint16_t mtu;
-    uint16_t flush_to_present;
-    uint16_t flush_to;
-    uint16_t qos_present;
-    FLOW_SPEC qos;
-    uint16_t fcr_present;
-    tL2CAP_FCR fcr;
-    uint16_t fcs_present;
-    uint16_t fcs;
-    uint16_t ext_flow_spec_present;
-    FLOW_SPEC ext_flow_spec;
-} tL2CAP_CFG_INFO;
+uint8_t fake_l2c_fcr_chk_chan_modes(void *p_ccb) {
+    LOGI("fake_l2c_fcr_chk_chan_modes called");
+    uint8_t orig = 0;
+    if (original_l2c_fcr_chk_chan_modes)
+        orig = original_l2c_fcr_chk_chan_modes(p_ccb);
 
-// Basic L2CAP link control block
-typedef struct {
-    bool wait_ack;
-    // Other FCR fields - not needed for our specific hook
-} tL2C_FCRB;
-
-// Forward declarations for needed types
-struct t_l2c_rcb;
-struct t_l2c_lcb;
-
-typedef struct t_l2c_ccb {
-    struct t_l2c_ccb* p_next_ccb;  // Next CCB in the chain
-    struct t_l2c_ccb* p_prev_ccb;  // Previous CCB in the chain
-    struct t_l2c_lcb* p_lcb;       // Link this CCB belongs to
-    struct t_l2c_rcb* p_rcb;       // Registration CB for this Channel
-    uint16_t local_cid;            // Local CID
-    uint16_t remote_cid;           // Remote CID
-    uint16_t p_lcb_next;           // For linking CCBs to an LCB
-    uint8_t ccb_priority;          // Channel priority
-    uint16_t tx_mps;               // MPS for outgoing messages
-    uint16_t max_rx_mtu;           // Max MTU we will receive
-    // State variables
-    bool in_use;                   // True when channel active
-    uint8_t chnl_state;            // Channel state
-    uint8_t local_id;              // Transaction ID for local trans
-    uint8_t remote_id;             // Transaction ID for remote
-    uint8_t timer_entry;           // Timer entry
-    uint8_t is_flushable;          // True if flushable
-    // Configuration variables
-    uint16_t our_cfg_bits;         // Bitmap of local config bits
-    uint16_t peer_cfg_bits;        // Bitmap of peer config bits
-    uint16_t config_done;          // Configuration bitmask
-    uint16_t remote_config_rsp_result; // Remote config response result
-    tL2CAP_CFG_INFO our_cfg;       // Our saved configuration options
-    tL2CAP_CFG_INFO peer_cfg;      // Peer's saved configuration options
-    // Additional control fields
-    uint8_t remote_credit_count;   // Credits sent to peer
-    tL2C_FCRB fcrb;                // FCR info
-    bool ecoc;                     // Enhanced Credit-based mode
-} tL2C_CCB;
-
-static uint8_t (*original_l2c_fcr_chk_chan_modes)(void* p_ccb) = nullptr;
-static void (*original_l2cu_process_our_cfg_req)(tL2C_CCB* p_ccb, tL2CAP_CFG_INFO* p_cfg) = nullptr;
-static void (*original_l2c_csm_config)(tL2C_CCB* p_ccb, uint8_t event, void* p_data) = nullptr;
-static void (*original_l2cu_send_peer_info_req)(tL2C_LCB* p_lcb, uint16_t info_type) = nullptr;
-
-// Add original pointer for BTA_DmSetLocalDiRecord
-static tBTA_STATUS (*original_BTA_DmSetLocalDiRecord)(tSDP_DI_RECORD* p_device_info, uint32_t* p_handle) = nullptr;
-
-uint8_t fake_l2c_fcr_chk_chan_modes(void* p_ccb) {
-    LOGI("l2c_fcr_chk_chan_modes hooked, returning true.");
+    LOGI("fake_l2c_fcr_chk_chan_modes: orig = %d, returning 1", orig);
     return 1;
 }
 
-void fake_l2cu_process_our_cfg_req(tL2C_CCB* p_ccb, tL2CAP_CFG_INFO* p_cfg) {
-    original_l2cu_process_our_cfg_req(p_ccb, p_cfg);
-    p_ccb->our_cfg.fcr.mode = 0x00;
-    LOGI("Set FCR mode to Basic Mode in outgoing config request");
-}
+tBTA_STATUS fake_BTA_DmSetLocalDiRecord(tSDP_DI_RECORD *p_device_info, uint32_t *p_handle) {
 
-void fake_l2c_csm_config(tL2C_CCB* p_ccb, uint8_t event, void* p_data) {
-    // Call the original function first to handle the specific code path where the FCR mode is checked
-    original_l2c_csm_config(p_ccb, event, p_data);
+    LOGI("fake_BTA_DmSetLocalDiRecord called");
 
-    // Check if this happens during CONFIG_RSP event handling
-    if (event == L2CEVT_L2CAP_CONFIG_RSP) {
-        p_ccb->our_cfg.fcr.mode = p_ccb->peer_cfg.fcr.mode;
-        LOGI("Forced compatibility in l2c_csm_config: set our_mode=%d to match peer_mode=%d",
-             p_ccb->our_cfg.fcr.mode, p_ccb->peer_cfg.fcr.mode);
-    }
-}
+    if (original_BTA_DmSetLocalDiRecord &&
+        enableSdpHook.load(std::memory_order_relaxed))
+        original_BTA_DmSetLocalDiRecord(p_device_info, p_handle);
 
-// Replacement function that does nothing
-void fake_l2cu_send_peer_info_req(tL2C_LCB* p_lcb, uint16_t info_type) {
-    LOGI("Intercepted l2cu_send_peer_info_req for info_type 0x%04x - doing nothing", info_type);
-    // Just return without doing anything
-    return;
-}
+    LOGI("fake_BTA_DmSetLocalDiRecord: modifying vendor to 0x004C, vendor_id_source to 0x0001");
 
-// New loader for SDP hook offset (persist.librepods.sdp_offset)
-uintptr_t loadSdpOffset() {
-    const char* property_name = "persist.librepods.sdp_offset";
-    char value[PROP_VALUE_MAX] = {0};
-
-    int len = __system_property_get(property_name, value);
-    if (len > 0) {
-        LOGI("Read sdp offset from property: %s", value);
-        uintptr_t offset;
-        char* endptr = nullptr;
-
-        const char* parse_start = value;
-        if (value[0] == '0' && (value[1] == 'x' || value[1] == 'X')) {
-            parse_start = value + 2;
-        }
-
-        errno = 0;
-        offset = strtoul(parse_start, &endptr, 16);
-
-        if (errno == 0 && endptr != parse_start && *endptr == '\0' && offset > 0) {
-            LOGI("Parsed sdp offset: 0x%x", offset);
-            return offset;
-        }
-
-        LOGE("Failed to parse sdp offset from property value: %s", value);
-    }
-
-    LOGI("No sdp offset property present - skipping SDP hook");
-    return 0;
-}
-
-// Fake BTA_DmSetLocalDiRecord: set vendor/vendor_id_source then call original
-tBTA_STATUS fake_BTA_DmSetLocalDiRecord(tSDP_DI_RECORD* p_device_info, uint32_t* p_handle) {
-    LOGI("BTA_DmSetLocalDiRecord hooked - forcing vendor fields");
     if (p_device_info) {
         p_device_info->vendor = 0x004C;
         p_device_info->vendor_id_source = 0x0001;
     }
-    LOGI("Set vendor=0x%04x, vendor_id_source=0x%04x", p_device_info->vendor, p_device_info->vendor_id_source);
-    if (original_BTA_DmSetLocalDiRecord) {
-        return original_BTA_DmSetLocalDiRecord(p_device_info, p_handle);
-    }
 
-    LOGE("Original BTA_DmSetLocalDiRecord not available");
-    return BTA_FAILURE;
+    LOGI("fake_BTA_DmSetLocalDiRecord: returning status %d",
+         original_BTA_DmSetLocalDiRecord ? original_BTA_DmSetLocalDiRecord(p_device_info, p_handle)
+                                         : BTA_FAILURE);
+    return original_BTA_DmSetLocalDiRecord ? original_BTA_DmSetLocalDiRecord(p_device_info,
+                                                                             p_handle)
+                                           : BTA_FAILURE;
 }
 
-uintptr_t loadHookOffset([[maybe_unused]] const char* package_name) {
-    const char* property_name = "persist.librepods.hook_offset";
-    char value[PROP_VALUE_MAX] = {0};
+static bool decompressXZ(const uint8_t *input, size_t input_size, std::vector<uint8_t> &output) {
 
-    int len = __system_property_get(property_name, value);
-    if (len > 0) {
-        LOGI("Read hook offset from property: %s", value);
-        uintptr_t offset;
-        char* endptr = nullptr;
+    LOGI("decompressXZ called with input_size: %zu", input_size);
 
-        const char* parse_start = value;
-        if (value[0] == '0' && (value[1] == 'x' || value[1] == 'X')) {
-            parse_start = value + 2;
+    xz_crc32_init();
+#ifdef XZ_USE_CRC64
+    xz_crc64_init();
+#endif
+
+    struct xz_dec *dec = xz_dec_init(XZ_DYNALLOC, 64U << 20);
+    if (!dec) {
+        LOGE("decompressXZ: xz_dec_init failed");
+        return false;
+    }
+    LOGI("decompressXZ: xz_dec_init succeeded");
+
+    struct xz_buf buf{};
+    buf.in = input;
+    buf.in_pos = 0;
+    buf.in_size = input_size;
+
+    output.resize(input_size * 8);
+
+    buf.out = output.data();
+    buf.out_pos = 0;
+    buf.out_size = output.size();
+
+    LOGI("decompressXZ: entering decompression loop");
+    while (true) {
+        LOGI("decompressXZ: xz_dec_run iteration, buf.in_pos: %zu, buf.out_pos: %zu", buf.in_pos,
+             buf.out_pos);
+        enum xz_ret ret = xz_dec_run(dec, &buf);
+
+        LOGI("decompressXZ: xz_dec_run returned %d", ret);
+
+        if (ret == XZ_STREAM_END)
+            break;
+
+        if (ret != XZ_OK) {
+            LOGE("decompressXZ: xz_dec_run error");
+            xz_dec_end(dec);
+            return false;
         }
 
-        errno = 0;
-        offset = strtoul(parse_start, &endptr, 16);
-
-        if (errno == 0 && endptr != parse_start && *endptr == '\0' && offset > 0) {
-            LOGI("Parsed offset: 0x%x", offset);
-            return offset;
+        if (buf.out_pos == buf.out_size) {
+            size_t old = output.size();
+            LOGI("decompressXZ: resizing output to %zu", old * 2);
+            output.resize(old * 2);
+            buf.out = output.data();
+            buf.out_size = output.size();
         }
-
-        LOGE("Failed to parse offset from property value: %s", value);
     }
 
-    LOGI("Using hardcoded fallback offset");
-    return 0x00a55e30;
+    output.resize(buf.out_pos);
+    xz_dec_end(dec);
+    LOGI("decompressXZ: decompression successful, output size: %zu", output.size());
+    return true;
 }
 
-uintptr_t loadL2cuProcessCfgReqOffset() {
-    const char* property_name = "persist.librepods.cfg_req_offset";
-    char value[PROP_VALUE_MAX] = {0};
+static bool getLibraryPath(const char *name, std::string &out) {
+    LOGI("getLibraryPath called with name: %s", name);
 
-    int len = __system_property_get(property_name, value);
-    if (len > 0) {
-        LOGI("Read l2cu_process_our_cfg_req offset from property: %s", value);
-        uintptr_t offset;
-        char* endptr = nullptr;
-
-        const char* parse_start = value;
-        if (value[0] == '0' && (value[1] == 'x' || value[1] == 'X')) {
-            parse_start = value + 2;
-        }
-
-        errno = 0;
-        offset = strtoul(parse_start, &endptr, 16);
-
-        if (errno == 0 && endptr != parse_start && *endptr == '\0' && offset > 0) {
-            LOGI("Parsed l2cu_process_our_cfg_req offset: 0x%x", offset);
-            return offset;
-        }
-
-        LOGE("Failed to parse l2cu_process_our_cfg_req offset from property value: %s", value);
-    }
-
-    // Return 0 if not found - we'll skip this hook
-    return 0;
-}
-
-uintptr_t loadL2cCsmConfigOffset() {
-    const char* property_name = "persist.librepods.csm_config_offset";
-    char value[PROP_VALUE_MAX] = {0};
-
-    int len = __system_property_get(property_name, value);
-    if (len > 0) {
-        LOGI("Read l2c_csm_config offset from property: %s", value);
-        uintptr_t offset;
-        char* endptr = nullptr;
-
-        const char* parse_start = value;
-        if (value[0] == '0' && (value[1] == 'x' || value[1] == 'X')) {
-            parse_start = value + 2;
-        }
-
-        errno = 0;
-        offset = strtoul(parse_start, &endptr, 16);
-
-        if (errno == 0 && endptr != parse_start && *endptr == '\0' && offset > 0) {
-            LOGI("Parsed l2c_csm_config offset: 0x%x", offset);
-            return offset;
-        }
-
-        LOGE("Failed to parse l2c_csm_config offset from property value: %s", value);
-    }
-
-    // Return 0 if not found - we'll skip this hook
-    return 0;
-}
-
-uintptr_t loadL2cuSendPeerInfoReqOffset() {
-    const char* property_name = "persist.librepods.peer_info_req_offset";
-    char value[PROP_VALUE_MAX] = {0};
-
-    int len = __system_property_get(property_name, value);
-    if (len > 0) {
-        LOGI("Read l2cu_send_peer_info_req offset from property: %s", value);
-        uintptr_t offset;
-        char* endptr = nullptr;
-
-        const char* parse_start = value;
-        if (value[0] == '0' && (value[1] == 'x' || value[1] == 'X')) {
-            parse_start = value + 2;
-        }
-
-        errno = 0;
-        offset = strtoul(parse_start, &endptr, 16);
-
-        if (errno == 0 && endptr != parse_start && *endptr == '\0' && offset > 0) {
-            LOGI("Parsed l2cu_send_peer_info_req offset: 0x%x", offset);
-            return offset;
-        }
-
-        LOGE("Failed to parse l2cu_send_peer_info_req offset from property value: %s", value);
-    }
-
-    // Return 0 if not found - we'll skip this hook
-    return 0;
-}
-
-uintptr_t getModuleBase(const char *module_name) {
-    FILE *fp;
-    char line[1024];
-    uintptr_t base_addr = 0;
-
-    fp = fopen("/proc/self/maps", "r");
+    FILE *fp = fopen("/proc/self/maps", "r");
     if (!fp) {
-        LOGE("Failed to open /proc/self/maps");
-        return 0;
+        LOGE("getLibraryPath: fopen failed");
+        return false;
     }
 
+    char line[1024];
+
+    LOGI("getLibraryPath: scanning /proc/self/maps");
     while (fgets(line, sizeof(line), fp)) {
-        if (strstr(line, module_name)) {
-            char *start_addr_str = line;
-            char *end_addr_str = strchr(line, '-');
-            if (end_addr_str) {
-                *end_addr_str = '\0';
-                base_addr = strtoull(start_addr_str, nullptr, 16);
-                break;
+        if (strstr(line, name)) {
+            LOGI("getLibraryPath: found line containing %s", name);
+            char *path = strchr(line, '/');
+            if (path) {
+                out = path;
+                out.erase(out.find('\n'));
+                LOGI("getLibraryPath: path found: %s", out.c_str());
+                fclose(fp);
+                return true;
             }
         }
     }
 
     fclose(fp);
-    return base_addr;
+    LOGI("getLibraryPath: failed to find path for %s", name);
+    return false;
 }
 
-bool findAndHookFunction(const char *library_name) {
+static uintptr_t getModuleBase(const char *name) {
+    LOGI("getModuleBase called with name: %s", name);
+
+    FILE *fp = fopen("/proc/self/maps", "r");
+    if (!fp) {
+        LOGE("getModuleBase: fopen failed");
+        return 0;
+    }
+
+    char line[1024];
+    uintptr_t base = 0;
+
+    LOGI("getModuleBase: scanning /proc/self/maps");
+    while (fgets(line, sizeof(line), fp)) {
+        if (strstr(line, name)) {
+            base = strtoull(line, nullptr, 16);
+            LOGI("getModuleBase: found base at 0x%lx", base);
+            break;
+        }
+    }
+
+    fclose(fp);
+    LOGI("getModuleBase: failed to find base for %s", name);
+    return base;
+}
+
+static uint64_t
+findSymbolOffsetDynsym(const std::vector<uint8_t> &elf, const char *symbol_substring) {
+
+    LOGI("findSymbolOffsetDynsym called with %s", symbol_substring);
+
+    auto *eh = reinterpret_cast<const Elf64_Ehdr *>(elf.data());
+    auto *shdr = reinterpret_cast<const Elf64_Shdr *>(
+            elf.data() + eh->e_shoff);
+
+    const char *shstr = reinterpret_cast<const char *>(
+            elf.data() + shdr[eh->e_shstrndx].sh_offset);
+
+    const Elf64_Shdr *dynsym = nullptr;
+    const Elf64_Shdr *dynstr = nullptr;
+
+    for (int i = 0; i < eh->e_shnum; ++i) {
+        const char *secname = shstr + shdr[i].sh_name;
+
+        if (!strcmp(secname, ".dynsym"))
+            dynsym = &shdr[i];
+        if (!strcmp(secname, ".dynstr"))
+            dynstr = &shdr[i];
+    }
+
+    if (!dynsym || !dynstr) {
+        LOGE("findSymbolOffsetDynsym: dynsym or dynstr not found");
+        return 0;
+    }
+
+    auto *symbols = reinterpret_cast<const Elf64_Sym *>(
+            elf.data() + dynsym->sh_offset);
+
+    const char *strings = reinterpret_cast<const char *>(
+            elf.data() + dynstr->sh_offset);
+
+    size_t count = dynsym->sh_size / sizeof(Elf64_Sym);
+
+    LOGI("findSymbolOffsetDynsym: scanning %zu symbols", count);
+
+    for (size_t i = 0; i < count; ++i) {
+        const char *name = strings + symbols[i].st_name;
+
+        if (strstr(name, symbol_substring) && ELF64_ST_TYPE(symbols[i].st_info) == STT_FUNC) {
+
+            LOGI("findSymbolOffsetDynsym: matched %s @ 0x%lx", name,
+                 (unsigned long) symbols[i].st_value);
+
+            return symbols[i].st_value;
+        }
+    }
+
+    LOGI("findSymbolOffsetDynsym: no match for %s", symbol_substring);
+    return 0;
+}
+
+static uint64_t findSymbolOffset(const std::vector<uint8_t> &elf, const char *symbol_substring) {
+
+    LOGI("findSymbolOffset called with symbol_substring: %s", symbol_substring);
+
+    auto *eh = reinterpret_cast<const Elf64_Ehdr *>(elf.data());
+    auto *shdr = reinterpret_cast<const Elf64_Shdr *>(
+            elf.data() + eh->e_shoff);
+
+    const char *shstr = reinterpret_cast<const char *>(
+            elf.data() + shdr[eh->e_shstrndx].sh_offset);
+
+    const Elf64_Shdr *symtab = nullptr;
+    const Elf64_Shdr *strtab = nullptr;
+
+    LOGI("findSymbolOffset: parsing ELF sections");
+    for (int i = 0; i < eh->e_shnum; ++i) {
+        const char *secname = shstr + shdr[i].sh_name;
+        if (!strcmp(secname, ".symtab"))
+            symtab = &shdr[i];
+        if (!strcmp(secname, ".strtab"))
+            strtab = &shdr[i];
+    }
+
+    if (!symtab || !strtab) {
+        LOGE("findSymbolOffset: symtab or strtab not found");
+        return 0;
+    }
+    LOGI("findSymbolOffset: found symtab and strtab");
+
+    auto *symbols = reinterpret_cast<const Elf64_Sym *>(
+            elf.data() + symtab->sh_offset);
+
+    const char *strings = reinterpret_cast<const char *>(
+            elf.data() + strtab->sh_offset);
+
+    size_t count = symtab->sh_size / sizeof(Elf64_Sym);
+
+    LOGI("findSymbolOffset: scanning %zu symbols", count);
+    for (size_t i = 0; i < count; ++i) {
+        const char *name = strings + symbols[i].st_name;
+
+        if (strstr(name, symbol_substring) && ELF64_ST_TYPE(symbols[i].st_info) == STT_FUNC) {
+
+            LOGI("findSymbolOffset: matched symbol %s at 0x%lx", name,
+                 (unsigned long) symbols[i].st_value);
+
+            return symbols[i].st_value;
+        }
+    }
+
+    LOGI("findSymbolOffset: no match found for %s", symbol_substring);
+    return 0;
+}
+
+static bool hookLibrary(const char *libname) {
+    LOGI("hookLibrary called with libname: %s", libname);
+
     if (!hook_func) {
-        LOGE("Hook function not initialized");
+        LOGE("hook_func not initialized");
         return false;
     }
 
-    uintptr_t base_addr = getModuleBase(library_name);
-    if (!base_addr) {
-        LOGE("Failed to get base address of %s", library_name);
+    std::string path;
+    if (!getLibraryPath(libname, path)) {
+        LOGE("Failed to locate %s", libname);
+        return false;
+    }
+    LOGI("hookLibrary: located path: %s", path.c_str());
+
+    int fd = open(path.c_str(), O_RDONLY);
+    if (fd < 0) {
+        LOGE("hookLibrary: open failed");
         return false;
     }
 
-    // Load all offsets from system properties - no hardcoding
-    uintptr_t l2c_fcr_offset = loadHookOffset(nullptr);
-    uintptr_t l2cu_process_our_cfg_req_offset = loadL2cuProcessCfgReqOffset();
-    uintptr_t l2c_csm_config_offset = loadL2cCsmConfigOffset();
-    uintptr_t l2cu_send_peer_info_req_offset = loadL2cuSendPeerInfoReqOffset();
-    uintptr_t sdp_offset = loadSdpOffset();
+    struct stat st{};
+    if (fstat(fd, &st) != 0) {
+        LOGE("hookLibrary: fstat failed");
+        close(fd);
+        return false;
+    }
+    LOGI("hookLibrary: opened file, size: %lld", (long long) st.st_size);
 
-    bool success = false;
+    std::vector<uint8_t> file(st.st_size);
+    read(fd, file.data(), st.st_size);
+    close(fd);
 
-    // Hook l2c_fcr_chk_chan_modes - this is our primary hook
-    if (l2c_fcr_offset > 0) {
-        void* target = reinterpret_cast<void*>(base_addr + l2c_fcr_offset);
-        LOGI("Hooking l2c_fcr_chk_chan_modes at offset: 0x%x, base: %p, target: %p",
-             l2c_fcr_offset, (void*)base_addr, target);
+    auto *eh = reinterpret_cast<Elf64_Ehdr *>(file.data());
+    auto *shdr = reinterpret_cast<Elf64_Shdr *>(
+            file.data() + eh->e_shoff);
 
-        int result = hook_func(target, (void*)fake_l2c_fcr_chk_chan_modes, (void**)&original_l2c_fcr_chk_chan_modes);
-        if (result != 0) {
-            LOGE("Failed to hook l2c_fcr_chk_chan_modes, error: %d", result);
-            return false;
+    const char *shstr = reinterpret_cast<const char *>(
+            file.data() + shdr[eh->e_shstrndx].sh_offset);
+
+    uint64_t chk_offset = 0;
+    uint64_t sdp_offset = 0;
+
+    for (int i = 0; i < eh->e_shnum; ++i) {
+        if (!strcmp(shstr + shdr[i].sh_name, ".gnu_debugdata")) {
+            LOGI("hookLibrary: found .gnu_debugdata section");
+
+            std::vector<uint8_t> compressed(file.begin() + shdr[i].sh_offset,
+                                            file.begin() + shdr[i].sh_offset + shdr[i].sh_size);
+
+            std::vector<uint8_t> decompressed;
+
+            if (decompressXZ(compressed.data(), compressed.size(), decompressed)) {
+
+                chk_offset = findSymbolOffset(decompressed, "l2c_fcr_chk_chan_modes");
+
+                sdp_offset = findSymbolOffset(decompressed, "BTA_DmSetLocalDiRecord");
+            } else {
+                LOGE("debugdata decompress failed");
+            }
+
+            break;
         }
-        LOGI("Successfully hooked l2c_fcr_chk_chan_modes");
-        success = true;
-    } else {
-        LOGE("No valid offset for l2c_fcr_chk_chan_modes found, cannot proceed");
+    }
+
+    if (!chk_offset) {
+        LOGI("fallback dynsym chk");
+        chk_offset = findSymbolOffsetDynsym(file, "l2c_fcr_chk_chan_modes");
+    }
+
+    if (!sdp_offset) {
+        LOGI("fallback dynsym sdp");
+        sdp_offset = findSymbolOffsetDynsym(file, "BTA_DmSetLocalDiRecord");
+    }
+
+    uintptr_t base = getModuleBase(libname);
+    if (!base) {
+        LOGE("hookLibrary: getModuleBase failed");
         return false;
     }
 
-    // Hook l2cu_process_our_cfg_req if offset is available
-    if (l2cu_process_our_cfg_req_offset > 0) {
-        void* target = reinterpret_cast<void*>(base_addr + l2cu_process_our_cfg_req_offset);
-        LOGI("Hooking l2cu_process_our_cfg_req at offset: 0x%x, base: %p, target: %p",
-             l2cu_process_our_cfg_req_offset, (void*)base_addr, target);
-
-        int result = hook_func(target, (void*)fake_l2cu_process_our_cfg_req, (void**)&original_l2cu_process_our_cfg_req);
-        if (result != 0) {
-            LOGE("Failed to hook l2cu_process_our_cfg_req, error: %d", result);
-            // Continue even if this hook fails
-        } else {
-            LOGI("Successfully hooked l2cu_process_our_cfg_req");
-        }
-    } else {
-        LOGI("Skipping l2cu_process_our_cfg_req hook as offset is not available");
+    if (chk_offset) {
+        void *target = reinterpret_cast<void *>(base + chk_offset);
+        hook_func(target, (void *) fake_l2c_fcr_chk_chan_modes,
+                  (void **) &original_l2c_fcr_chk_chan_modes);
+        LOGI("hooked chk");
     }
 
-    // Hook l2c_csm_config if offset is available
-    if (l2c_csm_config_offset > 0) {
-        void* target = reinterpret_cast<void*>(base_addr + l2c_csm_config_offset);
-        LOGI("Hooking l2c_csm_config at offset: 0x%x, base: %p, target: %p",
-             l2c_csm_config_offset, (void*)base_addr, target);
-
-        int result = hook_func(target, (void*)fake_l2c_csm_config, (void**)&original_l2c_csm_config);
-        if (result != 0) {
-            LOGE("Failed to hook l2c_csm_config, error: %d", result);
-            // Continue even if this hook fails
-        } else {
-            LOGI("Successfully hooked l2c_csm_config");
-        }
-    } else {
-        LOGI("Skipping l2c_csm_config hook as offset is not available");
+    if (sdp_offset) {
+        void *target = reinterpret_cast<void *>(base + sdp_offset);
+        hook_func(target, (void *) fake_BTA_DmSetLocalDiRecord,
+                  (void **) &original_BTA_DmSetLocalDiRecord);
+        LOGI("hooked sdp");
     }
 
-    // Hook l2cu_send_peer_info_req if offset is available
-    if (l2cu_send_peer_info_req_offset > 0) {
-        void* target = reinterpret_cast<void*>(base_addr + l2cu_send_peer_info_req_offset);
-        LOGI("Hooking l2cu_send_peer_info_req at offset: 0x%x, base: %p, target: %p",
-             l2cu_send_peer_info_req_offset, (void*)base_addr, target);
-
-        int result = hook_func(target, (void*)fake_l2cu_send_peer_info_req, (void**)&original_l2cu_send_peer_info_req);
-        if (result != 0) {
-            LOGE("Failed to hook l2cu_send_peer_info_req, error: %d", result);
-            // Continue even if this hook fails
-        } else {
-            LOGI("Successfully hooked l2cu_send_peer_info_req");
-        }
-    } else {
-        LOGI("Skipping l2cu_send_peer_info_req hook as offset is not available");
-    }
-
-    if (sdp_offset > 0) {
-        void* target = reinterpret_cast<void*>(base_addr + sdp_offset);
-        LOGI("Hooking BTA_DmSetLocalDiRecord at offset: 0x%x, base: %p, target: %p",
-             sdp_offset, (void*)base_addr, target);
-
-        int result = hook_func(target, (void*)fake_BTA_DmSetLocalDiRecord, (void**)&original_BTA_DmSetLocalDiRecord);
-        if (result != 0) {
-            LOGE("Failed to hook BTA_DmSetLocalDiRecord, error: %d", result);
-        } else {
-            LOGI("Successfully hooked BTA_DmSetLocalDiRecord (SDP)");
-        }
-    } else {
-        LOGI("Skipping BTA_DmSetLocalDiRecord hook as sdp offset is not available");
-    }
-
-    return success;
+    return chk_offset || sdp_offset;
 }
 
-void on_library_loaded(const char *name, [[maybe_unused]] void *handle) {
+static void on_library_loaded(const char *name, void *) {
+    LOGI("on_library_loaded called with name: %s", name);
+
     if (strstr(name, "libbluetooth_jni.so")) {
-        LOGI("Detected Bluetooth JNI library: %s", name);
+        LOGI("Bluetooth JNI loaded");
+        hookLibrary("libbluetooth_jni.so");
+    }
 
-        bool hooked = findAndHookFunction("libbluetooth_jni.so");
-        if (!hooked) {
-            LOGE("Failed to hook Bluetooth JNI library function");
-        }
-    } else if (strstr(name, "libbluetooth_qti.so")) {
-        LOGI("Detected Bluetooth QTI library: %s", name);
-
-        bool hooked = findAndHookFunction("libbluetooth_qti.so");
-        if (!hooked) {
-            LOGE("Failed to hook Bluetooth QTI library function");
-        }
+    if (strstr(name, "libbluetooth_qti.so")) {
+        LOGI("Bluetooth QTI loaded");
+        hookLibrary("libbluetooth_qti.so");
     }
 }
 
-extern "C" [[gnu::visibility("default")]] [[gnu::used]]
-NativeOnModuleLoaded native_init(const NativeAPIEntries* entries) {
-    LOGI("L2C FCR Hook module initialized");
-
-    hook_func = entries->hook_func;
-
+extern "C" [[gnu::visibility("default")]]
+[[gnu::used]]
+NativeOnModuleLoaded native_init(const NativeAPIEntries *entries) {
+    LOGI("native_init called with entries: %p", entries);
+    hook_func = (HookFunType) entries->hook_func;
+    LOGI("LibrePodsNativeHook initialized, sdp hook enabled: %d",
+         enableSdpHook.load(std::memory_order_relaxed));
     return on_library_loaded;
-}
+}
+
+extern "C" JNIEXPORT void JNICALL
+Java_me_kavishdevar_librepods_utils_NativeBridge_setSdpHook(JNIEnv *, jobject thiz,
+                                                            jboolean enable) {
+    LOGI("setSdpHook called with enable: %d", enable);
+    enableSdpHook.store(enable, std::memory_order_relaxed);
+
+    LOGI("sdp hook enabled: %d", enable);
+}

android/app/src/main/cpp/l2c_fcr_hook.h

@@ -1,50 +1,52 @@
-#pragma once
+/*
+    LibrePods - AirPods liberated from Apple’s ecosystem
+    Copyright (C) 2025 LibrePods contributors
 
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+#pragma once
 #include <cstdint>
-#include <vector>
 
 typedef int (*HookFunType)(void *func, void *replace, void **backup);
 
-typedef int (*UnhookFunType)(void *func);
-
 typedef void (*NativeOnModuleLoaded)(const char *name, void *handle);
 
 typedef struct {
     uint32_t version;
-    HookFunType hook_func;
-    UnhookFunType unhook_func;
+    void* hook_func;
+    void* unhook_func;
 } NativeAPIEntries;
 
-[[maybe_unused]] typedef NativeOnModuleLoaded (*NativeInit)(const NativeAPIEntries *entries);
-
-typedef struct t_l2c_ccb tL2C_CCB;
-typedef struct t_l2c_lcb tL2C_LCB;
-
-uintptr_t loadHookOffset(const char* package_name);
-uintptr_t getModuleBase(const char *module_name);
-uintptr_t loadL2cuProcessCfgReqOffset();
-uintptr_t loadL2cCsmConfigOffset();
-uintptr_t loadL2cuSendPeerInfoReqOffset();
-bool findAndHookFunction(const char *library_path);
-
-#define SDP_MAX_ATTR_LEN 400
-
-typedef struct t_sdp_di_record {
-  uint16_t vendor;
-  uint16_t vendor_id_source;
-  uint16_t product;
-  uint16_t version;
-  bool primary_record;
-  char client_executable_url[SDP_MAX_ATTR_LEN];
-  char service_description[SDP_MAX_ATTR_LEN];
-  char documentation_url[SDP_MAX_ATTR_LEN];
-} tSDP_DI_RECORD;
+typedef NativeOnModuleLoaded (*NativeInit)(const NativeAPIEntries *entries);
 
 typedef enum : uint8_t {
-  BTA_SUCCESS = 0, /* Successful operation. */
-  BTA_FAILURE = 1, /* Generic failure. */
-  BTA_PENDING = 2, /* API cannot be completed right now */
-  BTA_BUSY = 3,
-  BTA_NO_RESOURCES = 4,
-  BTA_WRONG_MODE = 5,
-} tBTA_STATUS;
+    BTA_SUCCESS = 0, /* Successful operation. */
+    BTA_FAILURE = 1, /* Generic failure. */
+    BTA_PENDING = 2, /* API cannot be completed right now */
+    BTA_BUSY = 3,
+    BTA_NO_RESOURCES = 4,
+    BTA_WRONG_MODE = 5,
+} tBTA_STATUS;
+
+typedef struct t_sdp_di_record {
+    uint16_t vendor;
+    uint16_t vendor_id_source;
+    uint16_t product;
+    uint16_t version;
+    bool primary_record;
+    char client_executable_url[400];
+    char service_description[400];
+    char documentation_url[400];
+} tSDP_DI_RECORD;

android/app/src/main/cpp/xz/xz.h

@@ -0,0 +1,448 @@
+/* SPDX-License-Identifier: 0BSD */
+
+/*
+ * XZ decompressor
+ *
+ * Authors: Lasse Collin <lasse.collin@tukaani.org>
+ *          Igor Pavlov <https://7-zip.org/>
+ */
+
+#ifndef XZ_H
+#define XZ_H
+
+#ifdef __KERNEL__
+#	include <linux/stddef.h>
+#	include <linux/types.h>
+#else
+#	include <stddef.h>
+#	include <stdint.h>
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* "#define XZ_EXTERN static" can be used to make extern functions static. */
+#ifndef XZ_EXTERN
+#	define XZ_EXTERN extern
+#endif
+
+/**
+ * enum xz_mode - Operation mode
+ *
+ * @XZ_SINGLE:              Single-call mode. This uses less RAM than
+ *                          multi-call modes, because the LZMA2
+ *                          dictionary doesn't need to be allocated as
+ *                          part of the decoder state. All required data
+ *                          structures are allocated at initialization,
+ *                          so xz_dec_run() cannot return XZ_MEM_ERROR.
+ * @XZ_PREALLOC:            Multi-call mode with preallocated LZMA2
+ *                          dictionary buffer. All data structures are
+ *                          allocated at initialization, so xz_dec_run()
+ *                          cannot return XZ_MEM_ERROR.
+ * @XZ_DYNALLOC:            Multi-call mode. The LZMA2 dictionary is
+ *                          allocated once the required size has been
+ *                          parsed from the stream headers. If the
+ *                          allocation fails, xz_dec_run() will return
+ *                          XZ_MEM_ERROR.
+ *
+ * It is possible to enable support only for a subset of the above
+ * modes at compile time by defining XZ_DEC_SINGLE, XZ_DEC_PREALLOC,
+ * or XZ_DEC_DYNALLOC. The xz_dec kernel module is always compiled
+ * with support for all operation modes, but the preboot code may
+ * be built with fewer features to minimize code size.
+ */
+enum xz_mode {
+	XZ_SINGLE,
+	XZ_PREALLOC,
+	XZ_DYNALLOC
+};
+
+/**
+ * enum xz_ret - Return codes
+ * @XZ_OK:                  Everything is OK so far. More input or more
+ *                          output space is required to continue. This
+ *                          return code is possible only in multi-call mode
+ *                          (XZ_PREALLOC or XZ_DYNALLOC).
+ * @XZ_STREAM_END:          Operation finished successfully.
+ * @XZ_UNSUPPORTED_CHECK:   Integrity check type is not supported. Decoding
+ *                          is still possible in multi-call mode by simply
+ *                          calling xz_dec_run() again.
+ *                          Note that this return value is used only if
+ *                          XZ_DEC_ANY_CHECK was defined at build time,
+ *                          which is not used in the kernel. Unsupported
+ *                          check types return XZ_OPTIONS_ERROR if
+ *                          XZ_DEC_ANY_CHECK was not defined at build time.
+ * @XZ_MEM_ERROR:           Allocating memory failed. This return code is
+ *                          possible only if the decoder was initialized
+ *                          with XZ_DYNALLOC. The amount of memory that was
+ *                          tried to be allocated was no more than the
+ *                          dict_max argument given to xz_dec_init().
+ * @XZ_MEMLIMIT_ERROR:      A bigger LZMA2 dictionary would be needed than
+ *                          allowed by the dict_max argument given to
+ *                          xz_dec_init(). This return value is possible
+ *                          only in multi-call mode (XZ_PREALLOC or
+ *                          XZ_DYNALLOC); the single-call mode (XZ_SINGLE)
+ *                          ignores the dict_max argument.
+ * @XZ_FORMAT_ERROR:        File format was not recognized (wrong magic
+ *                          bytes).
+ * @XZ_OPTIONS_ERROR:       This implementation doesn't support the requested
+ *                          compression options. In the decoder this means
+ *                          that the header CRC32 matches, but the header
+ *                          itself specifies something that we don't support.
+ * @XZ_DATA_ERROR:          Compressed data is corrupt.
+ * @XZ_BUF_ERROR:           Cannot make any progress. Details are slightly
+ *                          different between multi-call and single-call
+ *                          mode; more information below.
+ *
+ * In multi-call mode, XZ_BUF_ERROR is returned when two consecutive calls
+ * to XZ code cannot consume any input and cannot produce any new output.
+ * This happens when there is no new input available, or the output buffer
+ * is full while at least one output byte is still pending. Assuming your
+ * code is not buggy, you can get this error only when decoding a compressed
+ * stream that is truncated or otherwise corrupt.
+ *
+ * In single-call mode, XZ_BUF_ERROR is returned only when the output buffer
+ * is too small or the compressed input is corrupt in a way that makes the
+ * decoder produce more output than the caller expected. When it is
+ * (relatively) clear that the compressed input is truncated, XZ_DATA_ERROR
+ * is used instead of XZ_BUF_ERROR.
+ */
+enum xz_ret {
+	XZ_OK,
+	XZ_STREAM_END,
+	XZ_UNSUPPORTED_CHECK,
+	XZ_MEM_ERROR,
+	XZ_MEMLIMIT_ERROR,
+	XZ_FORMAT_ERROR,
+	XZ_OPTIONS_ERROR,
+	XZ_DATA_ERROR,
+	XZ_BUF_ERROR
+};
+
+/**
+ * struct xz_buf - Passing input and output buffers to XZ code
+ * @in:         Beginning of the input buffer. This may be NULL if and only
+ *              if in_pos is equal to in_size.
+ * @in_pos:     Current position in the input buffer. This must not exceed
+ *              in_size.
+ * @in_size:    Size of the input buffer
+ * @out:        Beginning of the output buffer. This may be NULL if and only
+ *              if out_pos is equal to out_size.
+ * @out_pos:    Current position in the output buffer. This must not exceed
+ *              out_size.
+ * @out_size:   Size of the output buffer
+ *
+ * Only the contents of the output buffer from out[out_pos] onward, and
+ * the variables in_pos and out_pos are modified by the XZ code.
+ */
+struct xz_buf {
+	const uint8_t *in;
+	size_t in_pos;
+	size_t in_size;
+
+	uint8_t *out;
+	size_t out_pos;
+	size_t out_size;
+};
+
+/*
+ * struct xz_dec - Opaque type to hold the XZ decoder state
+ */
+struct xz_dec;
+
+/**
+ * xz_dec_init() - Allocate and initialize a XZ decoder state
+ * @mode:       Operation mode
+ * @dict_max:   Maximum size of the LZMA2 dictionary (history buffer) for
+ *              multi-call decoding. This is ignored in single-call mode
+ *              (mode == XZ_SINGLE). LZMA2 dictionary is always 2^n bytes
+ *              or 2^n + 2^(n-1) bytes (the latter sizes are less common
+ *              in practice), so other values for dict_max don't make sense.
+ *              In the kernel, dictionary sizes of 64 KiB, 128 KiB, 256 KiB,
+ *              512 KiB, and 1 MiB are probably the only reasonable values,
+ *              except for kernel and initramfs images where a bigger
+ *              dictionary can be fine and useful.
+ *
+ * Single-call mode (XZ_SINGLE): xz_dec_run() decodes the whole stream at
+ * once. The caller must provide enough output space or the decoding will
+ * fail. The output space is used as the dictionary buffer, which is why
+ * there is no need to allocate the dictionary as part of the decoder's
+ * internal state.
+ *
+ * Because the output buffer is used as the workspace, streams encoded using
+ * a big dictionary are not a problem in single-call mode. It is enough that
+ * the output buffer is big enough to hold the actual uncompressed data; it
+ * can be smaller than the dictionary size stored in the stream headers.
+ *
+ * Multi-call mode with preallocated dictionary (XZ_PREALLOC): dict_max bytes
+ * of memory is preallocated for the LZMA2 dictionary. This way there is no
+ * risk that xz_dec_run() could run out of memory, since xz_dec_run() will
+ * never allocate any memory. Instead, if the preallocated dictionary is too
+ * small for decoding the given input stream, xz_dec_run() will return
+ * XZ_MEMLIMIT_ERROR. Thus, it is important to know what kind of data will be
+ * decoded to avoid allocating excessive amount of memory for the dictionary.
+ *
+ * Multi-call mode with dynamically allocated dictionary (XZ_DYNALLOC):
+ * dict_max specifies the maximum allowed dictionary size that xz_dec_run()
+ * may allocate once it has parsed the dictionary size from the stream
+ * headers. This way excessive allocations can be avoided while still
+ * limiting the maximum memory usage to a sane value to prevent running the
+ * system out of memory when decompressing streams from untrusted sources.
+ *
+ * On success, xz_dec_init() returns a pointer to struct xz_dec, which is
+ * ready to be used with xz_dec_run(). If memory allocation fails,
+ * xz_dec_init() returns NULL.
+ */
+XZ_EXTERN struct xz_dec *xz_dec_init(enum xz_mode mode, uint32_t dict_max);
+
+/**
+ * xz_dec_run() - Run the XZ decoder for a single XZ stream
+ * @s:          Decoder state allocated using xz_dec_init()
+ * @b:          Input and output buffers
+ *
+ * The possible return values depend on build options and operation mode.
+ * See enum xz_ret for details.
+ *
+ * Note that if an error occurs in single-call mode (return value is not
+ * XZ_STREAM_END), b->in_pos and b->out_pos are not modified and the
+ * contents of the output buffer from b->out[b->out_pos] onward are
+ * undefined. This is true even after XZ_BUF_ERROR, because with some filter
+ * chains, there may be a second pass over the output buffer, and this pass
+ * cannot be properly done if the output buffer is truncated. Thus, you
+ * cannot give the single-call decoder a too small buffer and then expect to
+ * get that amount valid data from the beginning of the stream. You must use
+ * the multi-call decoder if you don't want to uncompress the whole stream.
+ *
+ * Use xz_dec_run() when XZ data is stored inside some other file format.
+ * The decoding will stop after one XZ stream has been decompressed. To
+ * decompress regular .xz files which might have multiple concatenated
+ * streams, use xz_dec_catrun() instead.
+ */
+XZ_EXTERN enum xz_ret xz_dec_run(struct xz_dec *s, struct xz_buf *b);
+
+/**
+ * xz_dec_catrun() - Run the XZ decoder with support for concatenated streams
+ * @s:          Decoder state allocated using xz_dec_init()
+ * @b:          Input and output buffers
+ * @finish:     This is an int instead of bool to avoid requiring stdbool.h.
+ *              As long as more input might be coming, finish must be false.
+ *              When the caller knows that it has provided all the input to
+ *              the decoder (some possibly still in b->in), it must set finish
+ *              to true. Only when finish is true can this function return
+ *              XZ_STREAM_END to indicate successful decompression of the
+ *              file. In single-call mode (XZ_SINGLE) finish is assumed to
+ *              always be true; the caller-provided value is ignored.
+ *
+ * This is like xz_dec_run() except that this makes it easy to decode .xz
+ * files with multiple streams (multiple .xz files concatenated as is).
+ * The rarely-used Stream Padding feature is supported too, that is, there
+ * can be null bytes after or between the streams. The number of null bytes
+ * must be a multiple of four.
+ *
+ * When finish is false and b->in_pos == b->in_size, it is possible that
+ * XZ_BUF_ERROR isn't returned even when no progress is possible (XZ_OK is
+ * returned instead). This shouldn't matter because in this situation a
+ * reasonable caller will attempt to provide more input or set finish to
+ * true for the next xz_dec_catrun() call anyway.
+ *
+ * For any struct xz_dec that has been initialized for multi-call mode:
+ * Once decoding has been started with xz_dec_run() or xz_dec_catrun(),
+ * the same function must be used until xz_dec_reset() or xz_dec_end().
+ * Switching between the two decoding functions without resetting results
+ * in undefined behavior.
+ *
+ * xz_dec_catrun() is only available if XZ_DEC_CONCATENATED was defined
+ * at compile time.
+ */
+XZ_EXTERN enum xz_ret xz_dec_catrun(struct xz_dec *s, struct xz_buf *b,
+				    int finish);
+
+/**
+ * xz_dec_reset() - Reset an already allocated decoder state
+ * @s:          Decoder state allocated using xz_dec_init()
+ *
+ * This function can be used to reset the multi-call decoder state without
+ * freeing and reallocating memory with xz_dec_end() and xz_dec_init().
+ *
+ * In single-call mode, xz_dec_reset() is always called in the beginning of
+ * xz_dec_run(). Thus, explicit call to xz_dec_reset() is useful only in
+ * multi-call mode.
+ */
+XZ_EXTERN void xz_dec_reset(struct xz_dec *s);
+
+/**
+ * xz_dec_end() - Free the memory allocated for the decoder state
+ * @s:          Decoder state allocated using xz_dec_init(). If s is NULL,
+ *              this function does nothing.
+ */
+XZ_EXTERN void xz_dec_end(struct xz_dec *s);
+
+/**
+ * DOC: MicroLZMA decompressor
+ *
+ * This MicroLZMA header format was created for use in EROFS but may be used
+ * by others too. **In most cases one needs the XZ APIs above instead.**
+ *
+ * The compressed format supported by this decoder is a raw LZMA stream
+ * whose first byte (always 0x00) has been replaced with bitwise-negation
+ * of the LZMA properties (lc/lp/pb) byte. For example, if lc/lp/pb is
+ * 3/0/2, the first byte is 0xA2. This way the first byte can never be 0x00.
+ * Just like with LZMA2, lc + lp <= 4 must be true. The LZMA end-of-stream
+ * marker must not be used. The unused values are reserved for future use.
+ */
+
+/*
+ * struct xz_dec_microlzma - Opaque type to hold the MicroLZMA decoder state
+ */
+struct xz_dec_microlzma;
+
+/**
+ * xz_dec_microlzma_alloc() - Allocate memory for the MicroLZMA decoder
+ * @mode:       XZ_SINGLE or XZ_PREALLOC
+ * @dict_size:  LZMA dictionary size. This must be at least 4 KiB and
+ *              at most 3 GiB.
+ *
+ * In contrast to xz_dec_init(), this function only allocates the memory
+ * and remembers the dictionary size. xz_dec_microlzma_reset() must be used
+ * before calling xz_dec_microlzma_run().
+ *
+ * The amount of allocated memory is a little less than 30 KiB with XZ_SINGLE.
+ * With XZ_PREALLOC also a dictionary buffer of dict_size bytes is allocated.
+ *
+ * On success, xz_dec_microlzma_alloc() returns a pointer to
+ * struct xz_dec_microlzma. If memory allocation fails or
+ * dict_size is invalid, NULL is returned.
+ */
+XZ_EXTERN struct xz_dec_microlzma *xz_dec_microlzma_alloc(enum xz_mode mode,
+							  uint32_t dict_size);
+
+/**
+ * xz_dec_microlzma_reset() - Reset the MicroLZMA decoder state
+ * @s:          Decoder state allocated using xz_dec_microlzma_alloc()
+ * @comp_size:  Compressed size of the input stream
+ * @uncomp_size:  Uncompressed size of the input stream. A value smaller
+ *              than the real uncompressed size of the input stream can
+ *              be specified if uncomp_size_is_exact is set to false.
+ *              uncomp_size can never be set to a value larger than the
+ *              expected real uncompressed size because it would eventually
+ *              result in XZ_DATA_ERROR.
+ * @uncomp_size_is_exact:  This is an int instead of bool to avoid
+ *              requiring stdbool.h. This should normally be set to true.
+ *              When this is set to false, error detection is weaker.
+ */
+XZ_EXTERN void xz_dec_microlzma_reset(struct xz_dec_microlzma *s,
+				      uint32_t comp_size, uint32_t uncomp_size,
+				      int uncomp_size_is_exact);
+
+/**
+ * xz_dec_microlzma_run() - Run the MicroLZMA decoder
+ * @s:          Decoder state initialized using xz_dec_microlzma_reset()
+ * @b:          Input and output buffers
+ *
+ * This works similarly to xz_dec_run() with a few important differences.
+ * Only the differences are documented here.
+ *
+ * The only possible return values are XZ_OK, XZ_STREAM_END, and
+ * XZ_DATA_ERROR. This function cannot return XZ_BUF_ERROR: if no progress
+ * is possible due to lack of input data or output space, this function will
+ * keep returning XZ_OK. Thus, the calling code must be written so that it
+ * will eventually provide input and output space matching (or exceeding)
+ * comp_size and uncomp_size arguments given to xz_dec_microlzma_reset().
+ * If the caller cannot do this (for example, if the input file is truncated
+ * or otherwise corrupt), the caller must detect this error by itself to
+ * avoid an infinite loop.
+ *
+ * If the compressed data seems to be corrupt, XZ_DATA_ERROR is returned.
+ * This can happen also when incorrect dictionary, uncompressed, or
+ * compressed sizes have been specified.
+ *
+ * With XZ_PREALLOC only: As an extra feature, b->out may be NULL to skip over
+ * uncompressed data. This way the caller doesn't need to provide a temporary
+ * output buffer for the bytes that will be ignored.
+ *
+ * With XZ_SINGLE only: In contrast to xz_dec_run(), the return value XZ_OK
+ * is also possible and thus XZ_SINGLE is actually a limited multi-call mode.
+ * After XZ_OK the bytes decoded so far may be read from the output buffer.
+ * It is possible to continue decoding but the variables b->out and b->out_pos
+ * MUST NOT be changed by the caller. Increasing the value of b->out_size is
+ * allowed to make more output space available; one doesn't need to provide
+ * space for the whole uncompressed data on the first call. The input buffer
+ * may be changed normally like with XZ_PREALLOC. This way input data can be
+ * provided from non-contiguous memory.
+ */
+XZ_EXTERN enum xz_ret xz_dec_microlzma_run(struct xz_dec_microlzma *s,
+					   struct xz_buf *b);
+
+/**
+ * xz_dec_microlzma_end() - Free the memory allocated for the decoder state
+ * @s:          Decoder state allocated using xz_dec_microlzma_alloc().
+ *              If s is NULL, this function does nothing.
+ */
+XZ_EXTERN void xz_dec_microlzma_end(struct xz_dec_microlzma *s);
+
+/*
+ * Standalone build (userspace build or in-kernel build for boot time use)
+ * needs a CRC32 implementation. For normal in-kernel use, kernel's own
+ * CRC32 module is used instead, and users of this module don't need to
+ * care about the functions below.
+ */
+#ifndef XZ_INTERNAL_CRC32
+#	ifdef __KERNEL__
+#		define XZ_INTERNAL_CRC32 0
+#	else
+#		define XZ_INTERNAL_CRC32 1
+#	endif
+#endif
+
+/*
+ * If CRC64 support has been enabled with XZ_USE_CRC64, a CRC64
+ * implementation is needed too.
+ */
+#ifndef XZ_USE_CRC64
+#	undef XZ_INTERNAL_CRC64
+#	define XZ_INTERNAL_CRC64 0
+#endif
+#ifndef XZ_INTERNAL_CRC64
+#	ifdef __KERNEL__
+#		error Using CRC64 in the kernel has not been implemented.
+#	else
+#		define XZ_INTERNAL_CRC64 1
+#	endif
+#endif
+
+#if XZ_INTERNAL_CRC32
+/*
+ * This must be called before any other xz_* function to initialize
+ * the CRC32 lookup table.
+ */
+XZ_EXTERN void xz_crc32_init(void);
+
+/*
+ * Update CRC32 value using the polynomial from IEEE-802.3. To start a new
+ * calculation, the third argument must be zero. To continue the calculation,
+ * the previously returned value is passed as the third argument.
+ */
+XZ_EXTERN uint32_t xz_crc32(const uint8_t *buf, size_t size, uint32_t crc);
+#endif
+
+#if XZ_INTERNAL_CRC64
+/*
+ * This must be called before any other xz_* function (except xz_crc32_init())
+ * to initialize the CRC64 lookup table.
+ */
+XZ_EXTERN void xz_crc64_init(void);
+
+/*
+ * Update CRC64 value using the polynomial from ECMA-182. To start a new
+ * calculation, the third argument must be zero. To continue the calculation,
+ * the previously returned value is passed as the third argument.
+ */
+XZ_EXTERN uint64_t xz_crc64(const uint8_t *buf, size_t size, uint64_t crc);
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

android/app/src/main/cpp/xz/xz_config.h

@@ -0,0 +1,138 @@
+/* SPDX-License-Identifier: 0BSD */
+
+/*
+ * Private includes and definitions for userspace use of XZ Embedded
+ *
+ * Author: Lasse Collin <lasse.collin@tukaani.org>
+ */
+
+#ifndef XZ_CONFIG_H
+#define XZ_CONFIG_H
+
+/* Uncomment to enable building of xz_dec_catrun(). */
+/* #define XZ_DEC_CONCATENATED */
+
+/* Uncomment to enable CRC64 support. */
+/* #define XZ_USE_CRC64 */
+
+/* Uncomment as needed to enable BCJ filter decoders. */
+/* #define XZ_DEC_X86 */
+/* #define XZ_DEC_ARM */
+/* #define XZ_DEC_ARMTHUMB */
+/* #define XZ_DEC_ARM64 */
+/* #define XZ_DEC_RISCV */
+/* #define XZ_DEC_POWERPC */
+/* #define XZ_DEC_IA64 */
+/* #define XZ_DEC_SPARC */
+
+/*
+ * Visual Studio 2013 update 2 supports only __inline, not inline.
+ * MSVC v19.0 / VS 2015 and newer support both.
+ */
+#if defined(_MSC_VER) && _MSC_VER < 1900 && !defined(inline)
+#	define inline __inline
+#endif
+
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "xz.h"
+
+#define kmalloc(size, flags) malloc(size)
+#define kfree(ptr) free(ptr)
+#define vmalloc(size) malloc(size)
+#define vfree(ptr) free(ptr)
+
+#define memeq(a, b, size) (memcmp(a, b, size) == 0)
+#define memzero(buf, size) memset(buf, 0, size)
+
+#ifndef min
+#	define min(x, y) ((x) < (y) ? (x) : (y))
+#endif
+#define min_t(type, x, y) min(x, y)
+
+#ifndef fallthrough
+#	if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 202311
+#		define fallthrough [[fallthrough]]
+#	elif (defined(__GNUC__) && __GNUC__ >= 7) \
+			|| (defined(__clang_major__) && __clang_major__ >= 10)
+#		define fallthrough __attribute__((__fallthrough__))
+#	else
+#		define fallthrough do {} while (0)
+#	endif
+#endif
+
+/*
+ * Some functions have been marked with __always_inline to keep the
+ * performance reasonable even when the compiler is optimizing for
+ * small code size. You may be able to save a few bytes by #defining
+ * __always_inline to plain inline, but don't complain if the code
+ * becomes slow.
+ *
+ * NOTE: System headers on GNU/Linux may #define this macro already,
+ * so if you want to change it, you need to #undef it first.
+ */
+#ifndef __always_inline
+#	ifdef __GNUC__
+#		define __always_inline \
+			inline __attribute__((__always_inline__))
+#	else
+#		define __always_inline inline
+#	endif
+#endif
+
+/* Inline functions to access unaligned unsigned 32-bit integers */
+#ifndef get_unaligned_le32
+static inline uint32_t get_unaligned_le32(const uint8_t *buf)
+{
+	return (uint32_t)buf[0]
+			| ((uint32_t)buf[1] << 8)
+			| ((uint32_t)buf[2] << 16)
+			| ((uint32_t)buf[3] << 24);
+}
+#endif
+
+#ifndef get_unaligned_be32
+static inline uint32_t get_unaligned_be32(const uint8_t *buf)
+{
+	return (uint32_t)((uint32_t)buf[0] << 24)
+			| ((uint32_t)buf[1] << 16)
+			| ((uint32_t)buf[2] << 8)
+			| (uint32_t)buf[3];
+}
+#endif
+
+#ifndef put_unaligned_le32
+static inline void put_unaligned_le32(uint32_t val, uint8_t *buf)
+{
+	buf[0] = (uint8_t)val;
+	buf[1] = (uint8_t)(val >> 8);
+	buf[2] = (uint8_t)(val >> 16);
+	buf[3] = (uint8_t)(val >> 24);
+}
+#endif
+
+#ifndef put_unaligned_be32
+static inline void put_unaligned_be32(uint32_t val, uint8_t *buf)
+{
+	buf[0] = (uint8_t)(val >> 24);
+	buf[1] = (uint8_t)(val >> 16);
+	buf[2] = (uint8_t)(val >> 8);
+	buf[3] = (uint8_t)val;
+}
+#endif
+
+/*
+ * To keep things simpler, use the generic unaligned methods also for
+ * aligned access. The only place where performance could matter is
+ * SHA-256 but files using SHA-256 aren't common.
+ */
+#ifndef get_le32
+#	define get_le32 get_unaligned_le32
+#endif
+#ifndef get_be32
+#	define get_be32 get_unaligned_be32
+#endif
+
+#endif

android/app/src/main/cpp/xz/xz_crc32.c

@@ -0,0 +1,58 @@
+// SPDX-License-Identifier: 0BSD
+
+/*
+ * CRC32 using the polynomial from IEEE-802.3
+ *
+ * Authors: Lasse Collin <lasse.collin@tukaani.org>
+ *          Igor Pavlov <https://7-zip.org/>
+ */
+
+/*
+ * This is not the fastest implementation, but it is pretty compact.
+ * The fastest versions of xz_crc32() on modern CPUs without hardware
+ * accelerated CRC instruction are 3-5 times as fast as this version,
+ * but they are bigger and use more memory for the lookup table.
+ */
+
+#include "xz_private.h"
+
+/*
+ * STATIC_RW_DATA is used in the pre-boot environment on some architectures.
+ * See <linux/decompress/mm.h> for details.
+ */
+#ifndef STATIC_RW_DATA
+#	define STATIC_RW_DATA static
+#endif
+
+STATIC_RW_DATA uint32_t xz_crc32_table[256];
+
+XZ_EXTERN void xz_crc32_init(void)
+{
+	const uint32_t poly = 0xEDB88320;
+
+	uint32_t i;
+	uint32_t j;
+	uint32_t r;
+
+	for (i = 0; i < 256; ++i) {
+		r = i;
+		for (j = 0; j < 8; ++j)
+			r = (r >> 1) ^ (poly & ~((r & 1) - 1));
+
+		xz_crc32_table[i] = r;
+	}
+
+	return;
+}
+
+XZ_EXTERN uint32_t xz_crc32(const uint8_t *buf, size_t size, uint32_t crc)
+{
+	crc = ~crc;
+
+	while (size != 0) {
+		crc = xz_crc32_table[*buf++ ^ (crc & 0xFF)] ^ (crc >> 8);
+		--size;
+	}
+
+	return ~crc;
+}

android/app/src/main/cpp/xz/xz_crc64.c

@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: 0BSD
+
+/*
+ * CRC64 using the polynomial from ECMA-182
+ *
+ * This file is similar to xz_crc32.c. See the comments there.
+ *
+ * Authors: Lasse Collin <lasse.collin@tukaani.org>
+ *          Igor Pavlov <https://7-zip.org/>
+ */
+
+#include "xz_private.h"
+
+#ifndef STATIC_RW_DATA
+#	define STATIC_RW_DATA static
+#endif
+
+STATIC_RW_DATA uint64_t xz_crc64_table[256];
+
+XZ_EXTERN void xz_crc64_init(void)
+{
+	/*
+	 * The ULL suffix is needed for -std=gnu89 compatibility
+	 * on 32-bit platforms.
+	 */
+	const uint64_t poly = 0xC96C5795D7870F42ULL;
+
+	uint32_t i;
+	uint32_t j;
+	uint64_t r;
+
+	for (i = 0; i < 256; ++i) {
+		r = i;
+		for (j = 0; j < 8; ++j)
+			r = (r >> 1) ^ (poly & ~((r & 1) - 1));
+
+		xz_crc64_table[i] = r;
+	}
+
+	return;
+}
+
+XZ_EXTERN uint64_t xz_crc64(const uint8_t *buf, size_t size, uint64_t crc)
+{
+	crc = ~crc;
+
+	while (size != 0) {
+		crc = xz_crc64_table[*buf++ ^ (crc & 0xFF)] ^ (crc >> 8);
+		--size;
+	}
+
+	return ~crc;
+}

android/app/src/main/cpp/xz/xz_dec_bcj.c

@@ -0,0 +1,738 @@
+// SPDX-License-Identifier: 0BSD
+
+/*
+ * Branch/Call/Jump (BCJ) filter decoders
+ *
+ * Authors: Lasse Collin <lasse.collin@tukaani.org>
+ *          Igor Pavlov <https://7-zip.org/>
+ */
+
+#include "xz_private.h"
+
+/*
+ * The rest of the file is inside this ifdef. It makes things a little more
+ * convenient when building without support for any BCJ filters.
+ */
+#ifdef XZ_DEC_BCJ
+
+struct xz_dec_bcj {
+	/* Type of the BCJ filter being used */
+	enum {
+		BCJ_X86 = 4,        /* x86 or x86-64 */
+		BCJ_POWERPC = 5,    /* Big endian only */
+		BCJ_IA64 = 6,       /* Big or little endian */
+		BCJ_ARM = 7,        /* Little endian only */
+		BCJ_ARMTHUMB = 8,   /* Little endian only */
+		BCJ_SPARC = 9,      /* Big or little endian */
+		BCJ_ARM64 = 10,     /* AArch64 */
+		BCJ_RISCV = 11      /* RV32GQC_Zfh, RV64GQC_Zfh */
+	} type;
+
+	/*
+	 * Return value of the next filter in the chain. We need to preserve
+	 * this information across calls, because we must not call the next
+	 * filter anymore once it has returned XZ_STREAM_END.
+	 */
+	enum xz_ret ret;
+
+	/* True if we are operating in single-call mode. */
+	bool single_call;
+
+	/*
+	 * Absolute position relative to the beginning of the uncompressed
+	 * data (in a single .xz Block). We care only about the lowest 32
+	 * bits so this doesn't need to be uint64_t even with big files.
+	 */
+	uint32_t pos;
+
+	/* x86 filter state */
+	uint32_t x86_prev_mask;
+
+	/* Temporary space to hold the variables from struct xz_buf */
+	uint8_t *out;
+	size_t out_pos;
+	size_t out_size;
+
+	struct {
+		/* Amount of already filtered data in the beginning of buf */
+		size_t filtered;
+
+		/* Total amount of data currently stored in buf  */
+		size_t size;
+
+		/*
+		 * Buffer to hold a mix of filtered and unfiltered data. This
+		 * needs to be big enough to hold Alignment + 2 * Look-ahead:
+		 *
+		 * Type         Alignment   Look-ahead
+		 * x86              1           4
+		 * PowerPC          4           0
+		 * IA-64           16           0
+		 * ARM              4           0
+		 * ARM-Thumb        2           2
+		 * SPARC            4           0
+		 */
+		uint8_t buf[16];
+	} temp;
+};
+
+#ifdef XZ_DEC_X86
+/*
+ * This is used to test the most significant byte of a memory address
+ * in an x86 instruction.
+ */
+static inline int bcj_x86_test_msbyte(uint8_t b)
+{
+	return b == 0x00 || b == 0xFF;
+}
+
+static size_t bcj_x86(struct xz_dec_bcj *s, uint8_t *buf, size_t size)
+{
+	static const bool mask_to_allowed_status[8]
+		= { true, true, true, false, true, false, false, false };
+
+	static const uint8_t mask_to_bit_num[8] = { 0, 1, 2, 2, 3, 3, 3, 3 };
+
+	size_t i;
+	size_t prev_pos = (size_t)-1;
+	uint32_t prev_mask = s->x86_prev_mask;
+	uint32_t src;
+	uint32_t dest;
+	uint32_t j;
+	uint8_t b;
+
+	if (size <= 4)
+		return 0;
+
+	size -= 4;
+	for (i = 0; i < size; ++i) {
+		if ((buf[i] & 0xFE) != 0xE8)
+			continue;
+
+		prev_pos = i - prev_pos;
+		if (prev_pos > 3) {
+			prev_mask = 0;
+		} else {
+			prev_mask = (prev_mask << (prev_pos - 1)) & 7;
+			if (prev_mask != 0) {
+				b = buf[i + 4 - mask_to_bit_num[prev_mask]];
+				if (!mask_to_allowed_status[prev_mask]
+						|| bcj_x86_test_msbyte(b)) {
+					prev_pos = i;
+					prev_mask = (prev_mask << 1) | 1;
+					continue;
+				}
+			}
+		}
+
+		prev_pos = i;
+
+		if (bcj_x86_test_msbyte(buf[i + 4])) {
+			src = get_unaligned_le32(buf + i + 1);
+			while (true) {
+				dest = src - (s->pos + (uint32_t)i + 5);
+				if (prev_mask == 0)
+					break;
+
+				j = mask_to_bit_num[prev_mask] * 8;
+				b = (uint8_t)(dest >> (24 - j));
+				if (!bcj_x86_test_msbyte(b))
+					break;
+
+				src = dest ^ (((uint32_t)1 << (32 - j)) - 1);
+			}
+
+			dest &= 0x01FFFFFF;
+			dest |= (uint32_t)0 - (dest & 0x01000000);
+			put_unaligned_le32(dest, buf + i + 1);
+			i += 4;
+		} else {
+			prev_mask = (prev_mask << 1) | 1;
+		}
+	}
+
+	prev_pos = i - prev_pos;
+	s->x86_prev_mask = prev_pos > 3 ? 0 : prev_mask << (prev_pos - 1);
+	return i;
+}
+#endif
+
+#ifdef XZ_DEC_POWERPC
+static size_t bcj_powerpc(struct xz_dec_bcj *s, uint8_t *buf, size_t size)
+{
+	size_t i;
+	uint32_t instr;
+
+	size &= ~(size_t)3;
+
+	for (i = 0; i < size; i += 4) {
+		instr = get_unaligned_be32(buf + i);
+		if ((instr & 0xFC000003) == 0x48000001) {
+			instr &= 0x03FFFFFC;
+			instr -= s->pos + (uint32_t)i;
+			instr &= 0x03FFFFFC;
+			instr |= 0x48000001;
+			put_unaligned_be32(instr, buf + i);
+		}
+	}
+
+	return i;
+}
+#endif
+
+#ifdef XZ_DEC_IA64
+static size_t bcj_ia64(struct xz_dec_bcj *s, uint8_t *buf, size_t size)
+{
+	static const uint8_t branch_table[32] = {
+		0, 0, 0, 0, 0, 0, 0, 0,
+		0, 0, 0, 0, 0, 0, 0, 0,
+		4, 4, 6, 6, 0, 0, 7, 7,
+		4, 4, 0, 0, 4, 4, 0, 0
+	};
+
+	/*
+	 * The local variables take a little bit stack space, but it's less
+	 * than what LZMA2 decoder takes, so it doesn't make sense to reduce
+	 * stack usage here without doing that for the LZMA2 decoder too.
+	 */
+
+	/* Loop counters */
+	size_t i;
+	size_t j;
+
+	/* Instruction slot (0, 1, or 2) in the 128-bit instruction word */
+	uint32_t slot;
+
+	/* Bitwise offset of the instruction indicated by slot */
+	uint32_t bit_pos;
+
+	/* bit_pos split into byte and bit parts */
+	uint32_t byte_pos;
+	uint32_t bit_res;
+
+	/* Address part of an instruction */
+	uint32_t addr;
+
+	/* Mask used to detect which instructions to convert */
+	uint32_t mask;
+
+	/* 41-bit instruction stored somewhere in the lowest 48 bits */
+	uint64_t instr;
+
+	/* Instruction normalized with bit_res for easier manipulation */
+	uint64_t norm;
+
+	size &= ~(size_t)15;
+
+	for (i = 0; i < size; i += 16) {
+		mask = branch_table[buf[i] & 0x1F];
+		for (slot = 0, bit_pos = 5; slot < 3; ++slot, bit_pos += 41) {
+			if (((mask >> slot) & 1) == 0)
+				continue;
+
+			byte_pos = bit_pos >> 3;
+			bit_res = bit_pos & 7;
+			instr = 0;
+			for (j = 0; j < 6; ++j)
+				instr |= (uint64_t)(buf[i + j + byte_pos])
+						<< (8 * j);
+
+			norm = instr >> bit_res;
+
+			if (((norm >> 37) & 0x0F) == 0x05
+					&& ((norm >> 9) & 0x07) == 0) {
+				addr = (norm >> 13) & 0x0FFFFF;
+				addr |= ((uint32_t)(norm >> 36) & 1) << 20;
+				addr <<= 4;
+				addr -= s->pos + (uint32_t)i;
+				addr >>= 4;
+
+				norm &= ~((uint64_t)0x8FFFFF << 13);
+				norm |= (uint64_t)(addr & 0x0FFFFF) << 13;
+				norm |= (uint64_t)(addr & 0x100000)
+						<< (36 - 20);
+
+				instr &= (1 << bit_res) - 1;
+				instr |= norm << bit_res;
+
+				for (j = 0; j < 6; j++)
+					buf[i + j + byte_pos]
+						= (uint8_t)(instr >> (8 * j));
+			}
+		}
+	}
+
+	return i;
+}
+#endif
+
+#ifdef XZ_DEC_ARM
+static size_t bcj_arm(struct xz_dec_bcj *s, uint8_t *buf, size_t size)
+{
+	size_t i;
+	uint32_t addr;
+
+	size &= ~(size_t)3;
+
+	for (i = 0; i < size; i += 4) {
+		if (buf[i + 3] == 0xEB) {
+			addr = (uint32_t)buf[i] | ((uint32_t)buf[i + 1] << 8)
+					| ((uint32_t)buf[i + 2] << 16);
+			addr <<= 2;
+			addr -= s->pos + (uint32_t)i + 8;
+			addr >>= 2;
+			buf[i] = (uint8_t)addr;
+			buf[i + 1] = (uint8_t)(addr >> 8);
+			buf[i + 2] = (uint8_t)(addr >> 16);
+		}
+	}
+
+	return i;
+}
+#endif
+
+#ifdef XZ_DEC_ARMTHUMB
+static size_t bcj_armthumb(struct xz_dec_bcj *s, uint8_t *buf, size_t size)
+{
+	size_t i;
+	uint32_t addr;
+
+	if (size < 4)
+		return 0;
+
+	size -= 4;
+
+	for (i = 0; i <= size; i += 2) {
+		if ((buf[i + 1] & 0xF8) == 0xF0
+				&& (buf[i + 3] & 0xF8) == 0xF8) {
+			addr = (((uint32_t)buf[i + 1] & 0x07) << 19)
+					| ((uint32_t)buf[i] << 11)
+					| (((uint32_t)buf[i + 3] & 0x07) << 8)
+					| (uint32_t)buf[i + 2];
+			addr <<= 1;
+			addr -= s->pos + (uint32_t)i + 4;
+			addr >>= 1;
+			buf[i + 1] = (uint8_t)(0xF0 | ((addr >> 19) & 0x07));
+			buf[i] = (uint8_t)(addr >> 11);
+			buf[i + 3] = (uint8_t)(0xF8 | ((addr >> 8) & 0x07));
+			buf[i + 2] = (uint8_t)addr;
+			i += 2;
+		}
+	}
+
+	return i;
+}
+#endif
+
+#ifdef XZ_DEC_SPARC
+static size_t bcj_sparc(struct xz_dec_bcj *s, uint8_t *buf, size_t size)
+{
+	size_t i;
+	uint32_t instr;
+
+	size &= ~(size_t)3;
+
+	for (i = 0; i < size; i += 4) {
+		instr = get_unaligned_be32(buf + i);
+		if ((instr >> 22) == 0x100 || (instr >> 22) == 0x1FF) {
+			instr <<= 2;
+			instr -= s->pos + (uint32_t)i;
+			instr >>= 2;
+			instr = ((uint32_t)0x40000000 - (instr & 0x400000))
+					| 0x40000000 | (instr & 0x3FFFFF);
+			put_unaligned_be32(instr, buf + i);
+		}
+	}
+
+	return i;
+}
+#endif
+
+#ifdef XZ_DEC_ARM64
+static size_t bcj_arm64(struct xz_dec_bcj *s, uint8_t *buf, size_t size)
+{
+	size_t i;
+	uint32_t instr;
+	uint32_t addr;
+
+	size &= ~(size_t)3;
+
+	for (i = 0; i < size; i += 4) {
+		instr = get_unaligned_le32(buf + i);
+
+		if ((instr >> 26) == 0x25) {
+			/* BL instruction */
+			addr = instr - ((s->pos + (uint32_t)i) >> 2);
+			instr = 0x94000000 | (addr & 0x03FFFFFF);
+			put_unaligned_le32(instr, buf + i);
+
+		} else if ((instr & 0x9F000000) == 0x90000000) {
+			/* ADRP instruction */
+			addr = ((instr >> 29) & 3) | ((instr >> 3) & 0x1FFFFC);
+
+			/* Only convert values in the range +/-512 MiB. */
+			if ((addr + 0x020000) & 0x1C0000)
+				continue;
+
+			addr -= (s->pos + (uint32_t)i) >> 12;
+
+			instr &= 0x9000001F;
+			instr |= (addr & 3) << 29;
+			instr |= (addr & 0x03FFFC) << 3;
+			instr |= (0U - (addr & 0x020000)) & 0xE00000;
+
+			put_unaligned_le32(instr, buf + i);
+		}
+	}
+
+	return i;
+}
+#endif
+
+#ifdef XZ_DEC_RISCV
+static size_t bcj_riscv(struct xz_dec_bcj *s, uint8_t *buf, size_t size)
+{
+	size_t i;
+	uint32_t b1;
+	uint32_t b2;
+	uint32_t b3;
+	uint32_t instr;
+	uint32_t instr2;
+	uint32_t instr2_rs1;
+	uint32_t addr;
+
+	if (size < 8)
+		return 0;
+
+	size -= 8;
+
+	for (i = 0; i <= size; i += 2) {
+		instr = buf[i];
+
+		if (instr == 0xEF) {
+			/* JAL */
+			b1 = buf[i + 1];
+			if ((b1 & 0x0D) != 0)
+				continue;
+
+			b2 = buf[i + 2];
+			b3 = buf[i + 3];
+
+			addr = ((b1 & 0xF0) << 13) | (b2 << 9) | (b3 << 1);
+			addr -= s->pos + (uint32_t)i;
+
+			buf[i + 1] = (uint8_t)((b1 & 0x0F)
+					| ((addr >> 8) & 0xF0));
+
+			buf[i + 2] = (uint8_t)(((addr >> 16) & 0x0F)
+					| ((addr >> 7) & 0x10)
+					| ((addr << 4) & 0xE0));
+
+			buf[i + 3] = (uint8_t)(((addr >> 4) & 0x7F)
+					| ((addr >> 13) & 0x80));
+
+			i += 4 - 2;
+
+		} else if ((instr & 0x7F) == 0x17) {
+			/* AUIPC */
+			instr |= (uint32_t)buf[i + 1] << 8;
+			instr |= (uint32_t)buf[i + 2] << 16;
+			instr |= (uint32_t)buf[i + 3] << 24;
+
+			if (instr & 0xE80) {
+				/* AUIPC's rd doesn't equal x0 or x2. */
+				instr2 = get_unaligned_le32(buf + i + 4);
+
+				if (((instr << 8) ^ (instr2 - 3)) & 0xF8003) {
+					i += 6 - 2;
+					continue;
+				}
+
+				addr = (instr & 0xFFFFF000) + (instr2 >> 20);
+
+				instr = 0x17 | (2 << 7) | (instr2 << 12);
+				instr2 = addr;
+			} else {
+				/* AUIPC's rd equals x0 or x2. */
+				instr2_rs1 = instr >> 27;
+
+				if ((uint32_t)((instr - 0x3117) << 18)
+						>= (instr2_rs1 & 0x1D)) {
+					i += 4 - 2;
+					continue;
+				}
+
+				addr = get_unaligned_be32(buf + i + 4);
+				addr -= s->pos + (uint32_t)i;
+
+				instr2 = (instr >> 12) | (addr << 20);
+
+				instr = 0x17 | (instr2_rs1 << 7)
+					| ((addr + 0x800) & 0xFFFFF000);
+			}
+
+			put_unaligned_le32(instr, buf + i);
+			put_unaligned_le32(instr2, buf + i + 4);
+
+			i += 8 - 2;
+		}
+	}
+
+	return i;
+}
+#endif
+
+/*
+ * Apply the selected BCJ filter. Update *pos and s->pos to match the amount
+ * of data that got filtered.
+ *
+ * NOTE: This is implemented as a switch statement to avoid using function
+ * pointers, which could be problematic in the kernel boot code, which must
+ * avoid pointers to static data (at least on x86).
+ */
+static void bcj_apply(struct xz_dec_bcj *s,
+		      uint8_t *buf, size_t *pos, size_t size)
+{
+	size_t filtered;
+
+	buf += *pos;
+	size -= *pos;
+
+	switch (s->type) {
+#ifdef XZ_DEC_X86
+	case BCJ_X86:
+		filtered = bcj_x86(s, buf, size);
+		break;
+#endif
+#ifdef XZ_DEC_POWERPC
+	case BCJ_POWERPC:
+		filtered = bcj_powerpc(s, buf, size);
+		break;
+#endif
+#ifdef XZ_DEC_IA64
+	case BCJ_IA64:
+		filtered = bcj_ia64(s, buf, size);
+		break;
+#endif
+#ifdef XZ_DEC_ARM
+	case BCJ_ARM:
+		filtered = bcj_arm(s, buf, size);
+		break;
+#endif
+#ifdef XZ_DEC_ARMTHUMB
+	case BCJ_ARMTHUMB:
+		filtered = bcj_armthumb(s, buf, size);
+		break;
+#endif
+#ifdef XZ_DEC_SPARC
+	case BCJ_SPARC:
+		filtered = bcj_sparc(s, buf, size);
+		break;
+#endif
+#ifdef XZ_DEC_ARM64
+	case BCJ_ARM64:
+		filtered = bcj_arm64(s, buf, size);
+		break;
+#endif
+#ifdef XZ_DEC_RISCV
+	case BCJ_RISCV:
+		filtered = bcj_riscv(s, buf, size);
+		break;
+#endif
+	default:
+		/* Never reached but silence compiler warnings. */
+		filtered = 0;
+		break;
+	}
+
+	*pos += filtered;
+	s->pos += filtered;
+}
+
+/*
+ * Flush pending filtered data from temp to the output buffer.
+ * Move the remaining mixture of possibly filtered and unfiltered
+ * data to the beginning of temp.
+ */
+static void bcj_flush(struct xz_dec_bcj *s, struct xz_buf *b)
+{
+	size_t copy_size;
+
+	copy_size = min_t(size_t, s->temp.filtered, b->out_size - b->out_pos);
+	memcpy(b->out + b->out_pos, s->temp.buf, copy_size);
+	b->out_pos += copy_size;
+
+	s->temp.filtered -= copy_size;
+	s->temp.size -= copy_size;
+	memmove(s->temp.buf, s->temp.buf + copy_size, s->temp.size);
+}
+
+/*
+ * The BCJ filter functions are primitive in sense that they process the
+ * data in chunks of 1-16 bytes. To hide this issue, this function does
+ * some buffering.
+ */
+XZ_EXTERN enum xz_ret xz_dec_bcj_run(struct xz_dec_bcj *s,
+				     struct xz_dec_lzma2 *lzma2,
+				     struct xz_buf *b)
+{
+	size_t out_start;
+
+	/*
+	 * Flush pending already filtered data to the output buffer. Return
+	 * immediately if we couldn't flush everything, or if the next
+	 * filter in the chain had already returned XZ_STREAM_END.
+	 */
+	if (s->temp.filtered > 0) {
+		bcj_flush(s, b);
+		if (s->temp.filtered > 0)
+			return XZ_OK;
+
+		if (s->ret == XZ_STREAM_END)
+			return XZ_STREAM_END;
+	}
+
+	/*
+	 * If we have more output space than what is currently pending in
+	 * temp, copy the unfiltered data from temp to the output buffer
+	 * and try to fill the output buffer by decoding more data from the
+	 * next filter in the chain. Apply the BCJ filter on the new data
+	 * in the output buffer. If everything cannot be filtered, copy it
+	 * to temp and rewind the output buffer position accordingly.
+	 *
+	 * This needs to be always run when temp.size == 0 to handle a special
+	 * case where the output buffer is full and the next filter has no
+	 * more output coming but hasn't returned XZ_STREAM_END yet.
+	 */
+	if (s->temp.size < b->out_size - b->out_pos || s->temp.size == 0) {
+		out_start = b->out_pos;
+		memcpy(b->out + b->out_pos, s->temp.buf, s->temp.size);
+		b->out_pos += s->temp.size;
+
+		s->ret = xz_dec_lzma2_run(lzma2, b);
+		if (s->ret != XZ_STREAM_END
+				&& (s->ret != XZ_OK || s->single_call))
+			return s->ret;
+
+		bcj_apply(s, b->out, &out_start, b->out_pos);
+
+		/*
+		 * As an exception, if the next filter returned XZ_STREAM_END,
+		 * we can do that too, since the last few bytes that remain
+		 * unfiltered are meant to remain unfiltered.
+		 */
+		if (s->ret == XZ_STREAM_END)
+			return XZ_STREAM_END;
+
+		s->temp.size = b->out_pos - out_start;
+		b->out_pos -= s->temp.size;
+		memcpy(s->temp.buf, b->out + b->out_pos, s->temp.size);
+
+		/*
+		 * If there wasn't enough input to the next filter to fill
+		 * the output buffer with unfiltered data, there's no point
+		 * to try decoding more data to temp.
+		 */
+		if (b->out_pos + s->temp.size < b->out_size)
+			return XZ_OK;
+	}
+
+	/*
+	 * We have unfiltered data in temp. If the output buffer isn't full
+	 * yet, try to fill the temp buffer by decoding more data from the
+	 * next filter. Apply the BCJ filter on temp. Then we hopefully can
+	 * fill the actual output buffer by copying filtered data from temp.
+	 * A mix of filtered and unfiltered data may be left in temp; it will
+	 * be taken care on the next call to this function.
+	 */
+	if (b->out_pos < b->out_size) {
+		/* Make b->out{,_pos,_size} temporarily point to s->temp. */
+		s->out = b->out;
+		s->out_pos = b->out_pos;
+		s->out_size = b->out_size;
+		b->out = s->temp.buf;
+		b->out_pos = s->temp.size;
+		b->out_size = sizeof(s->temp.buf);
+
+		s->ret = xz_dec_lzma2_run(lzma2, b);
+
+		s->temp.size = b->out_pos;
+		b->out = s->out;
+		b->out_pos = s->out_pos;
+		b->out_size = s->out_size;
+
+		if (s->ret != XZ_OK && s->ret != XZ_STREAM_END)
+			return s->ret;
+
+		bcj_apply(s, s->temp.buf, &s->temp.filtered, s->temp.size);
+
+		/*
+		 * If the next filter returned XZ_STREAM_END, we mark that
+		 * everything is filtered, since the last unfiltered bytes
+		 * of the stream are meant to be left as is.
+		 */
+		if (s->ret == XZ_STREAM_END)
+			s->temp.filtered = s->temp.size;
+
+		bcj_flush(s, b);
+		if (s->temp.filtered > 0)
+			return XZ_OK;
+	}
+
+	return s->ret;
+}
+
+XZ_EXTERN struct xz_dec_bcj *xz_dec_bcj_create(bool single_call)
+{
+	struct xz_dec_bcj *s = kmalloc(sizeof(*s), GFP_KERNEL);
+	if (s != NULL)
+		s->single_call = single_call;
+
+	return s;
+}
+
+XZ_EXTERN enum xz_ret xz_dec_bcj_reset(struct xz_dec_bcj *s, uint8_t id)
+{
+	switch (id) {
+#ifdef XZ_DEC_X86
+	case BCJ_X86:
+#endif
+#ifdef XZ_DEC_POWERPC
+	case BCJ_POWERPC:
+#endif
+#ifdef XZ_DEC_IA64
+	case BCJ_IA64:
+#endif
+#ifdef XZ_DEC_ARM
+	case BCJ_ARM:
+#endif
+#ifdef XZ_DEC_ARMTHUMB
+	case BCJ_ARMTHUMB:
+#endif
+#ifdef XZ_DEC_SPARC
+	case BCJ_SPARC:
+#endif
+#ifdef XZ_DEC_ARM64
+	case BCJ_ARM64:
+#endif
+#ifdef XZ_DEC_RISCV
+	case BCJ_RISCV:
+#endif
+		break;
+
+	default:
+		/* Unsupported Filter ID */
+		return XZ_OPTIONS_ERROR;
+	}
+
+	s->type = id;
+	s->ret = XZ_OK;
+	s->pos = 0;
+	s->x86_prev_mask = 0;
+	s->temp.filtered = 0;
+	s->temp.size = 0;
+
+	return XZ_OK;
+}
+
+#endif

android/app/src/main/cpp/xz/xz_dec_stream.c

@@ -0,0 +1,984 @@
+// SPDX-License-Identifier: 0BSD
+
+/*
+ * .xz Stream decoder
+ *
+ * Author: Lasse Collin <lasse.collin@tukaani.org>
+ */
+
+#include "xz_private.h"
+#include "xz_stream.h"
+
+#ifdef XZ_USE_CRC64
+#	define IS_CRC64(check_type) ((check_type) == XZ_CHECK_CRC64)
+#else
+#	define IS_CRC64(check_type) false
+#endif
+
+#ifdef XZ_USE_SHA256
+#	define IS_SHA256(check_type) ((check_type) == XZ_CHECK_SHA256)
+#else
+#	define IS_SHA256(check_type) false
+#endif
+
+/* Hash used to validate the Index field */
+struct xz_dec_hash {
+	vli_type unpadded;
+	vli_type uncompressed;
+	uint32_t crc32;
+};
+
+struct xz_dec {
+	/* Position in dec_main() */
+	enum {
+		SEQ_STREAM_HEADER,
+		SEQ_BLOCK_START,
+		SEQ_BLOCK_HEADER,
+		SEQ_BLOCK_UNCOMPRESS,
+		SEQ_BLOCK_PADDING,
+		SEQ_BLOCK_CHECK,
+		SEQ_INDEX,
+		SEQ_INDEX_PADDING,
+		SEQ_INDEX_CRC32,
+		SEQ_STREAM_FOOTER,
+		SEQ_STREAM_PADDING
+	} sequence;
+
+	/* Position in variable-length integers and Check fields */
+	uint32_t pos;
+
+	/* Variable-length integer decoded by dec_vli() */
+	vli_type vli;
+
+	/* Saved in_pos and out_pos */
+	size_t in_start;
+	size_t out_start;
+
+#ifdef XZ_USE_CRC64
+	/* CRC32 or CRC64 value in Block or CRC32 value in Index */
+	uint64_t crc;
+#else
+	/* CRC32 value in Block or Index */
+	uint32_t crc;
+#endif
+
+	/* Type of the integrity check calculated from uncompressed data */
+	enum xz_check check_type;
+
+	/* Operation mode */
+	enum xz_mode mode;
+
+	/*
+	 * True if the next call to xz_dec_run() is allowed to return
+	 * XZ_BUF_ERROR.
+	 */
+	bool allow_buf_error;
+
+	/* Information stored in Block Header */
+	struct {
+		/*
+		 * Value stored in the Compressed Size field, or
+		 * VLI_UNKNOWN if Compressed Size is not present.
+		 */
+		vli_type compressed;
+
+		/*
+		 * Value stored in the Uncompressed Size field, or
+		 * VLI_UNKNOWN if Uncompressed Size is not present.
+		 */
+		vli_type uncompressed;
+
+		/* Size of the Block Header field */
+		uint32_t size;
+	} block_header;
+
+	/* Information collected when decoding Blocks */
+	struct {
+		/* Observed compressed size of the current Block */
+		vli_type compressed;
+
+		/* Observed uncompressed size of the current Block */
+		vli_type uncompressed;
+
+		/* Number of Blocks decoded so far */
+		vli_type count;
+
+		/*
+		 * Hash calculated from the Block sizes. This is used to
+		 * validate the Index field.
+		 */
+		struct xz_dec_hash hash;
+	} block;
+
+	/* Variables needed when verifying the Index field */
+	struct {
+		/* Position in dec_index() */
+		enum {
+			SEQ_INDEX_COUNT,
+			SEQ_INDEX_UNPADDED,
+			SEQ_INDEX_UNCOMPRESSED
+		} sequence;
+
+		/* Size of the Index in bytes */
+		vli_type size;
+
+		/* Number of Records (matches block.count in valid files) */
+		vli_type count;
+
+		/*
+		 * Hash calculated from the Records (matches block.hash in
+		 * valid files).
+		 */
+		struct xz_dec_hash hash;
+	} index;
+
+	/*
+	 * Temporary buffer needed to hold Stream Header, Block Header,
+	 * and Stream Footer. The Block Header is the biggest (1 KiB)
+	 * so we reserve space according to that. buf[] has to be aligned
+	 * to a multiple of four bytes; the size_t variables before it
+	 * should guarantee this.
+	 */
+	struct {
+		size_t pos;
+		size_t size;
+		uint8_t buf[1024];
+	} temp;
+
+	struct xz_dec_lzma2 *lzma2;
+
+#ifdef XZ_DEC_BCJ
+	struct xz_dec_bcj *bcj;
+	bool bcj_active;
+#endif
+
+#ifdef XZ_USE_SHA256
+	/*
+	 * SHA-256 value in Block
+	 *
+	 * struct xz_sha256 is over a hundred bytes and it's only accessed
+	 * from a few places. By putting the SHA-256 state near the end
+	 * of struct xz_dec (somewhere after the "index" member) reduces
+	 * code size at least on x86 and RISC-V. It's because the first bytes
+	 * of the struct can be accessed with smaller instructions; the
+	 * members that are accessed from many places should be at the top.
+	 */
+	struct xz_sha256 sha256;
+#endif
+};
+
+#if defined(XZ_DEC_ANY_CHECK) || defined(XZ_USE_SHA256)
+/* Sizes of the Check field with different Check IDs */
+static const uint8_t check_sizes[16] = {
+	0,
+	4, 4, 4,
+	8, 8, 8,
+	16, 16, 16,
+	32, 32, 32,
+	64, 64, 64
+};
+#endif
+
+/*
+ * Fill s->temp by copying data starting from b->in[b->in_pos]. Caller
+ * must have set s->temp.pos and s->temp.size to indicate how much data
+ * we are supposed to copy into s->temp.buf. Return true once s->temp.pos
+ * has reached s->temp.size.
+ */
+static bool fill_temp(struct xz_dec *s, struct xz_buf *b)
+{
+	size_t copy_size = min_t(size_t,
+			b->in_size - b->in_pos, s->temp.size - s->temp.pos);
+
+	memcpy(s->temp.buf + s->temp.pos, b->in + b->in_pos, copy_size);
+	b->in_pos += copy_size;
+	s->temp.pos += copy_size;
+
+	if (s->temp.pos == s->temp.size) {
+		s->temp.pos = 0;
+		return true;
+	}
+
+	return false;
+}
+
+/* Decode a variable-length integer (little-endian base-128 encoding) */
+static enum xz_ret dec_vli(struct xz_dec *s, const uint8_t *in,
+			   size_t *in_pos, size_t in_size)
+{
+	uint8_t byte;
+
+	if (s->pos == 0)
+		s->vli = 0;
+
+	while (*in_pos < in_size) {
+		byte = in[*in_pos];
+		++*in_pos;
+
+		s->vli |= (vli_type)(byte & 0x7F) << s->pos;
+
+		if ((byte & 0x80) == 0) {
+			/* Don't allow non-minimal encodings. */
+			if (byte == 0 && s->pos != 0)
+				return XZ_DATA_ERROR;
+
+			s->pos = 0;
+			return XZ_STREAM_END;
+		}
+
+		s->pos += 7;
+		if (s->pos == 7 * VLI_BYTES_MAX)
+			return XZ_DATA_ERROR;
+	}
+
+	return XZ_OK;
+}
+
+/*
+ * Decode the Compressed Data field from a Block. Update and validate
+ * the observed compressed and uncompressed sizes of the Block so that
+ * they don't exceed the values possibly stored in the Block Header
+ * (validation assumes that no integer overflow occurs, since vli_type
+ * is normally uint64_t). Update the CRC32 or CRC64 value if presence of
+ * the CRC32 or CRC64 field was indicated in Stream Header.
+ *
+ * Once the decoding is finished, validate that the observed sizes match
+ * the sizes possibly stored in the Block Header. Update the hash and
+ * Block count, which are later used to validate the Index field.
+ */
+static enum xz_ret dec_block(struct xz_dec *s, struct xz_buf *b)
+{
+	enum xz_ret ret;
+
+	s->in_start = b->in_pos;
+	s->out_start = b->out_pos;
+
+#ifdef XZ_DEC_BCJ
+	if (s->bcj_active)
+		ret = xz_dec_bcj_run(s->bcj, s->lzma2, b);
+	else
+#endif
+		ret = xz_dec_lzma2_run(s->lzma2, b);
+
+	s->block.compressed += b->in_pos - s->in_start;
+	s->block.uncompressed += b->out_pos - s->out_start;
+
+	/*
+	 * There is no need to separately check for VLI_UNKNOWN, since
+	 * the observed sizes are always smaller than VLI_UNKNOWN.
+	 */
+	if (s->block.compressed > s->block_header.compressed
+			|| s->block.uncompressed
+				> s->block_header.uncompressed)
+		return XZ_DATA_ERROR;
+
+	if (s->check_type == XZ_CHECK_CRC32)
+		s->crc = xz_crc32(b->out + s->out_start,
+				b->out_pos - s->out_start, s->crc);
+#ifdef XZ_USE_CRC64
+	else if (s->check_type == XZ_CHECK_CRC64)
+		s->crc = xz_crc64(b->out + s->out_start,
+				b->out_pos - s->out_start, s->crc);
+#endif
+#ifdef XZ_USE_SHA256
+	else if (s->check_type == XZ_CHECK_SHA256)
+		xz_sha256_update(b->out + s->out_start,
+				b->out_pos - s->out_start, &s->sha256);
+#endif
+
+	if (ret == XZ_STREAM_END) {
+		if (s->block_header.compressed != VLI_UNKNOWN
+				&& s->block_header.compressed
+					!= s->block.compressed)
+			return XZ_DATA_ERROR;
+
+		if (s->block_header.uncompressed != VLI_UNKNOWN
+				&& s->block_header.uncompressed
+					!= s->block.uncompressed)
+			return XZ_DATA_ERROR;
+
+		s->block.hash.unpadded += s->block_header.size
+				+ s->block.compressed;
+
+#if defined(XZ_DEC_ANY_CHECK) || defined(XZ_USE_SHA256)
+		s->block.hash.unpadded += check_sizes[s->check_type];
+#else
+		if (s->check_type == XZ_CHECK_CRC32)
+			s->block.hash.unpadded += 4;
+		else if (IS_CRC64(s->check_type))
+			s->block.hash.unpadded += 8;
+#endif
+
+		s->block.hash.uncompressed += s->block.uncompressed;
+		s->block.hash.crc32 = xz_crc32(
+				(const uint8_t *)&s->block.hash,
+				sizeof(s->block.hash), s->block.hash.crc32);
+
+		++s->block.count;
+	}
+
+	return ret;
+}
+
+/* Update the Index size and the CRC32 value. */
+static void index_update(struct xz_dec *s, const struct xz_buf *b)
+{
+	size_t in_used = b->in_pos - s->in_start;
+	s->index.size += in_used;
+	s->crc = xz_crc32(b->in + s->in_start, in_used, s->crc);
+}
+
+/*
+ * Decode the Number of Records, Unpadded Size, and Uncompressed Size
+ * fields from the Index field. That is, Index Padding and CRC32 are not
+ * decoded by this function.
+ *
+ * This can return XZ_OK (more input needed), XZ_STREAM_END (everything
+ * successfully decoded), or XZ_DATA_ERROR (input is corrupt).
+ */
+static enum xz_ret dec_index(struct xz_dec *s, struct xz_buf *b)
+{
+	enum xz_ret ret;
+
+	do {
+		ret = dec_vli(s, b->in, &b->in_pos, b->in_size);
+		if (ret != XZ_STREAM_END) {
+			index_update(s, b);
+			return ret;
+		}
+
+		switch (s->index.sequence) {
+		case SEQ_INDEX_COUNT:
+			s->index.count = s->vli;
+
+			/*
+			 * Validate that the Number of Records field
+			 * indicates the same number of Records as
+			 * there were Blocks in the Stream.
+			 */
+			if (s->index.count != s->block.count)
+				return XZ_DATA_ERROR;
+
+			s->index.sequence = SEQ_INDEX_UNPADDED;
+			break;
+
+		case SEQ_INDEX_UNPADDED:
+			s->index.hash.unpadded += s->vli;
+			s->index.sequence = SEQ_INDEX_UNCOMPRESSED;
+			break;
+
+		case SEQ_INDEX_UNCOMPRESSED:
+			s->index.hash.uncompressed += s->vli;
+			s->index.hash.crc32 = xz_crc32(
+					(const uint8_t *)&s->index.hash,
+					sizeof(s->index.hash),
+					s->index.hash.crc32);
+			--s->index.count;
+			s->index.sequence = SEQ_INDEX_UNPADDED;
+			break;
+		}
+	} while (s->index.count > 0);
+
+	return XZ_STREAM_END;
+}
+
+/*
+ * Validate that the next four or eight input bytes match the value
+ * of s->crc. s->pos must be zero when starting to validate the first byte.
+ * The "bits" argument allows using the same code for both CRC32 and CRC64.
+ */
+static enum xz_ret crc_validate(struct xz_dec *s, struct xz_buf *b,
+				uint32_t bits)
+{
+	do {
+		if (b->in_pos == b->in_size)
+			return XZ_OK;
+
+		if (((s->crc >> s->pos) & 0xFF) != b->in[b->in_pos++])
+			return XZ_DATA_ERROR;
+
+		s->pos += 8;
+
+	} while (s->pos < bits);
+
+	s->crc = 0;
+	s->pos = 0;
+
+	return XZ_STREAM_END;
+}
+
+#ifdef XZ_DEC_ANY_CHECK
+/*
+ * Skip over the Check field when the Check ID is not supported.
+ * Returns true once the whole Check field has been skipped over.
+ */
+static bool check_skip(struct xz_dec *s, struct xz_buf *b)
+{
+	while (s->pos < check_sizes[s->check_type]) {
+		if (b->in_pos == b->in_size)
+			return false;
+
+		++b->in_pos;
+		++s->pos;
+	}
+
+	s->pos = 0;
+
+	return true;
+}
+#endif
+
+/* Decode the Stream Header field (the first 12 bytes of the .xz Stream). */
+static enum xz_ret dec_stream_header(struct xz_dec *s)
+{
+	if (!memeq(s->temp.buf, HEADER_MAGIC, HEADER_MAGIC_SIZE))
+		return XZ_FORMAT_ERROR;
+
+	if (xz_crc32(s->temp.buf + HEADER_MAGIC_SIZE, 2, 0)
+			!= get_le32(s->temp.buf + HEADER_MAGIC_SIZE + 2))
+		return XZ_DATA_ERROR;
+
+	if (s->temp.buf[HEADER_MAGIC_SIZE] != 0)
+		return XZ_OPTIONS_ERROR;
+
+	/*
+	 * Of integrity checks, we support none (Check ID = 0),
+	 * CRC32 (Check ID = 1), and optionally CRC64 (Check ID = 4).
+	 * However, if XZ_DEC_ANY_CHECK is defined, we will accept other
+	 * check types too, but then the check won't be verified and
+	 * a warning (XZ_UNSUPPORTED_CHECK) will be given.
+	 */
+	if (s->temp.buf[HEADER_MAGIC_SIZE + 1] > XZ_CHECK_MAX)
+		return XZ_OPTIONS_ERROR;
+
+	s->check_type = s->temp.buf[HEADER_MAGIC_SIZE + 1];
+
+	if (s->check_type > XZ_CHECK_CRC32 && !IS_CRC64(s->check_type)
+			&& !IS_SHA256(s->check_type)) {
+#ifdef XZ_DEC_ANY_CHECK
+		return XZ_UNSUPPORTED_CHECK;
+#else
+		return XZ_OPTIONS_ERROR;
+#endif
+	}
+
+	return XZ_OK;
+}
+
+/* Decode the Stream Footer field (the last 12 bytes of the .xz Stream) */
+static enum xz_ret dec_stream_footer(struct xz_dec *s)
+{
+	if (!memeq(s->temp.buf + 10, FOOTER_MAGIC, FOOTER_MAGIC_SIZE))
+		return XZ_DATA_ERROR;
+
+	if (xz_crc32(s->temp.buf + 4, 6, 0) != get_le32(s->temp.buf))
+		return XZ_DATA_ERROR;
+
+	/*
+	 * Validate Backward Size. Note that we never added the size of the
+	 * Index CRC32 field to s->index.size, thus we use s->index.size / 4
+	 * instead of s->index.size / 4 - 1.
+	 */
+	if ((s->index.size >> 2) != get_le32(s->temp.buf + 4))
+		return XZ_DATA_ERROR;
+
+	if (s->temp.buf[8] != 0 || s->temp.buf[9] != s->check_type)
+		return XZ_DATA_ERROR;
+
+	/*
+	 * Use XZ_STREAM_END instead of XZ_OK to be more convenient
+	 * for the caller.
+	 */
+	return XZ_STREAM_END;
+}
+
+/* Decode the Block Header and initialize the filter chain. */
+static enum xz_ret dec_block_header(struct xz_dec *s)
+{
+	enum xz_ret ret;
+
+	/*
+	 * Validate the CRC32. We know that the temp buffer is at least
+	 * eight bytes so this is safe.
+	 */
+	s->temp.size -= 4;
+	if (xz_crc32(s->temp.buf, s->temp.size, 0)
+			!= get_le32(s->temp.buf + s->temp.size))
+		return XZ_DATA_ERROR;
+
+	s->temp.pos = 2;
+
+	/*
+	 * Catch unsupported Block Flags. We support only one or two filters
+	 * in the chain, so we catch that with the same test.
+	 */
+#ifdef XZ_DEC_BCJ
+	if (s->temp.buf[1] & 0x3E)
+#else
+	if (s->temp.buf[1] & 0x3F)
+#endif
+		return XZ_OPTIONS_ERROR;
+
+	/* Compressed Size */
+	if (s->temp.buf[1] & 0x40) {
+		if (dec_vli(s, s->temp.buf, &s->temp.pos, s->temp.size)
+					!= XZ_STREAM_END)
+			return XZ_DATA_ERROR;
+
+		s->block_header.compressed = s->vli;
+	} else {
+		s->block_header.compressed = VLI_UNKNOWN;
+	}
+
+	/* Uncompressed Size */
+	if (s->temp.buf[1] & 0x80) {
+		if (dec_vli(s, s->temp.buf, &s->temp.pos, s->temp.size)
+				!= XZ_STREAM_END)
+			return XZ_DATA_ERROR;
+
+		s->block_header.uncompressed = s->vli;
+	} else {
+		s->block_header.uncompressed = VLI_UNKNOWN;
+	}
+
+#ifdef XZ_DEC_BCJ
+	/* If there are two filters, the first one must be a BCJ filter. */
+	s->bcj_active = s->temp.buf[1] & 0x01;
+	if (s->bcj_active) {
+		if (s->temp.size - s->temp.pos < 2)
+			return XZ_OPTIONS_ERROR;
+
+		ret = xz_dec_bcj_reset(s->bcj, s->temp.buf[s->temp.pos++]);
+		if (ret != XZ_OK)
+			return ret;
+
+		/*
+		 * We don't support custom start offset,
+		 * so Size of Properties must be zero.
+		 */
+		if (s->temp.buf[s->temp.pos++] != 0x00)
+			return XZ_OPTIONS_ERROR;
+	}
+#endif
+
+	/* Valid Filter Flags always take at least two bytes. */
+	if (s->temp.size - s->temp.pos < 2)
+		return XZ_DATA_ERROR;
+
+	/* Filter ID = LZMA2 */
+	if (s->temp.buf[s->temp.pos++] != 0x21)
+		return XZ_OPTIONS_ERROR;
+
+	/* Size of Properties = 1-byte Filter Properties */
+	if (s->temp.buf[s->temp.pos++] != 0x01)
+		return XZ_OPTIONS_ERROR;
+
+	/* Filter Properties contains LZMA2 dictionary size. */
+	if (s->temp.size - s->temp.pos < 1)
+		return XZ_DATA_ERROR;
+
+	ret = xz_dec_lzma2_reset(s->lzma2, s->temp.buf[s->temp.pos++]);
+	if (ret != XZ_OK)
+		return ret;
+
+	/* The rest must be Header Padding. */
+	while (s->temp.pos < s->temp.size)
+		if (s->temp.buf[s->temp.pos++] != 0x00)
+			return XZ_OPTIONS_ERROR;
+
+	s->temp.pos = 0;
+	s->block.compressed = 0;
+	s->block.uncompressed = 0;
+
+	return XZ_OK;
+}
+
+static enum xz_ret dec_main(struct xz_dec *s, struct xz_buf *b)
+{
+	enum xz_ret ret;
+
+	/*
+	 * Store the start position for the case when we are in the middle
+	 * of the Index field.
+	 */
+	s->in_start = b->in_pos;
+
+	while (true) {
+		switch (s->sequence) {
+		case SEQ_STREAM_HEADER:
+			/*
+			 * Stream Header is copied to s->temp, and then
+			 * decoded from there. This way if the caller
+			 * gives us only little input at a time, we can
+			 * still keep the Stream Header decoding code
+			 * simple. Similar approach is used in many places
+			 * in this file.
+			 */
+			if (!fill_temp(s, b))
+				return XZ_OK;
+
+			/*
+			 * If dec_stream_header() returns
+			 * XZ_UNSUPPORTED_CHECK, it is still possible
+			 * to continue decoding if working in multi-call
+			 * mode. Thus, update s->sequence before calling
+			 * dec_stream_header().
+			 */
+			s->sequence = SEQ_BLOCK_START;
+
+			ret = dec_stream_header(s);
+			if (ret != XZ_OK)
+				return ret;
+
+			fallthrough;
+
+		case SEQ_BLOCK_START:
+			/* We need one byte of input to continue. */
+			if (b->in_pos == b->in_size)
+				return XZ_OK;
+
+			/* See if this is the beginning of the Index field. */
+			if (b->in[b->in_pos] == 0) {
+				s->in_start = b->in_pos++;
+				s->sequence = SEQ_INDEX;
+				break;
+			}
+
+			/*
+			 * Calculate the size of the Block Header and
+			 * prepare to decode it.
+			 */
+			s->block_header.size
+				= ((uint32_t)b->in[b->in_pos] + 1) * 4;
+
+			s->temp.size = s->block_header.size;
+			s->temp.pos = 0;
+			s->sequence = SEQ_BLOCK_HEADER;
+
+			fallthrough;
+
+		case SEQ_BLOCK_HEADER:
+			if (!fill_temp(s, b))
+				return XZ_OK;
+
+			ret = dec_block_header(s);
+			if (ret != XZ_OK)
+				return ret;
+
+#ifdef XZ_USE_SHA256
+			if (s->check_type == XZ_CHECK_SHA256)
+				xz_sha256_reset(&s->sha256);
+#endif
+
+			s->sequence = SEQ_BLOCK_UNCOMPRESS;
+
+			fallthrough;
+
+		case SEQ_BLOCK_UNCOMPRESS:
+			ret = dec_block(s, b);
+			if (ret != XZ_STREAM_END)
+				return ret;
+
+			s->sequence = SEQ_BLOCK_PADDING;
+
+			fallthrough;
+
+		case SEQ_BLOCK_PADDING:
+			/*
+			 * Size of Compressed Data + Block Padding
+			 * must be a multiple of four. We don't need
+			 * s->block.compressed for anything else
+			 * anymore, so we use it here to test the size
+			 * of the Block Padding field.
+			 */
+			while (s->block.compressed & 3) {
+				if (b->in_pos == b->in_size)
+					return XZ_OK;
+
+				if (b->in[b->in_pos++] != 0)
+					return XZ_DATA_ERROR;
+
+				++s->block.compressed;
+			}
+
+			s->sequence = SEQ_BLOCK_CHECK;
+
+			fallthrough;
+
+		case SEQ_BLOCK_CHECK:
+			if (s->check_type == XZ_CHECK_CRC32) {
+				ret = crc_validate(s, b, 32);
+				if (ret != XZ_STREAM_END)
+					return ret;
+			}
+			else if (IS_CRC64(s->check_type)) {
+				ret = crc_validate(s, b, 64);
+				if (ret != XZ_STREAM_END)
+					return ret;
+			}
+#ifdef XZ_USE_SHA256
+			else if (s->check_type == XZ_CHECK_SHA256) {
+				s->temp.size = 32;
+				if (!fill_temp(s, b))
+					return XZ_OK;
+
+				if (!xz_sha256_validate(s->temp.buf,
+							&s->sha256))
+					return XZ_DATA_ERROR;
+
+				s->pos = 0;
+			}
+#endif
+#ifdef XZ_DEC_ANY_CHECK
+			else if (!check_skip(s, b)) {
+				return XZ_OK;
+			}
+#endif
+
+			s->sequence = SEQ_BLOCK_START;
+			break;
+
+		case SEQ_INDEX:
+			ret = dec_index(s, b);
+			if (ret != XZ_STREAM_END)
+				return ret;
+
+			s->sequence = SEQ_INDEX_PADDING;
+
+			fallthrough;
+
+		case SEQ_INDEX_PADDING:
+			while ((s->index.size + (b->in_pos - s->in_start))
+					& 3) {
+				if (b->in_pos == b->in_size) {
+					index_update(s, b);
+					return XZ_OK;
+				}
+
+				if (b->in[b->in_pos++] != 0)
+					return XZ_DATA_ERROR;
+			}
+
+			/* Finish the CRC32 value and Index size. */
+			index_update(s, b);
+
+			/* Compare the hashes to validate the Index field. */
+			if (!memeq(&s->block.hash, &s->index.hash,
+					sizeof(s->block.hash)))
+				return XZ_DATA_ERROR;
+
+			s->sequence = SEQ_INDEX_CRC32;
+
+			fallthrough;
+
+		case SEQ_INDEX_CRC32:
+			ret = crc_validate(s, b, 32);
+			if (ret != XZ_STREAM_END)
+				return ret;
+
+			s->temp.size = STREAM_HEADER_SIZE;
+			s->sequence = SEQ_STREAM_FOOTER;
+
+			fallthrough;
+
+		case SEQ_STREAM_FOOTER:
+			if (!fill_temp(s, b))
+				return XZ_OK;
+
+			return dec_stream_footer(s);
+
+		case SEQ_STREAM_PADDING:
+			/* Never reached, only silencing a warning */
+			break;
+		}
+	}
+
+	/* Never reached */
+}
+
+/*
+ * xz_dec_run() is a wrapper for dec_main() to handle some special cases in
+ * multi-call and single-call decoding.
+ *
+ * In multi-call mode, we must return XZ_BUF_ERROR when it seems clear that we
+ * are not going to make any progress anymore. This is to prevent the caller
+ * from calling us infinitely when the input file is truncated or otherwise
+ * corrupt. Since zlib-style API allows that the caller fills the input buffer
+ * only when the decoder doesn't produce any new output, we have to be careful
+ * to avoid returning XZ_BUF_ERROR too easily: XZ_BUF_ERROR is returned only
+ * after the second consecutive call to xz_dec_run() that makes no progress.
+ *
+ * In single-call mode, if we couldn't decode everything and no error
+ * occurred, either the input is truncated or the output buffer is too small.
+ * Since we know that the last input byte never produces any output, we know
+ * that if all the input was consumed and decoding wasn't finished, the file
+ * must be corrupt. Otherwise the output buffer has to be too small or the
+ * file is corrupt in a way that decoding it produces too big output.
+ *
+ * If single-call decoding fails, we reset b->in_pos and b->out_pos back to
+ * their original values. This is because with some filter chains there won't
+ * be any valid uncompressed data in the output buffer unless the decoding
+ * actually succeeds (that's the price to pay of using the output buffer as
+ * the workspace).
+ */
+XZ_EXTERN enum xz_ret xz_dec_run(struct xz_dec *s, struct xz_buf *b)
+{
+	size_t in_start;
+	size_t out_start;
+	enum xz_ret ret;
+
+	if (DEC_IS_SINGLE(s->mode))
+		xz_dec_reset(s);
+
+	in_start = b->in_pos;
+	out_start = b->out_pos;
+	ret = dec_main(s, b);
+
+	if (DEC_IS_SINGLE(s->mode)) {
+		if (ret == XZ_OK)
+			ret = b->in_pos == b->in_size
+					? XZ_DATA_ERROR : XZ_BUF_ERROR;
+
+		if (ret != XZ_STREAM_END) {
+			b->in_pos = in_start;
+			b->out_pos = out_start;
+		}
+
+	} else if (ret == XZ_OK && in_start == b->in_pos
+			&& out_start == b->out_pos) {
+		if (s->allow_buf_error)
+			ret = XZ_BUF_ERROR;
+
+		s->allow_buf_error = true;
+	} else {
+		s->allow_buf_error = false;
+	}
+
+	return ret;
+}
+
+#ifdef XZ_DEC_CONCATENATED
+XZ_EXTERN enum xz_ret xz_dec_catrun(struct xz_dec *s, struct xz_buf *b,
+				    int finish)
+{
+	enum xz_ret ret;
+
+	if (DEC_IS_SINGLE(s->mode)) {
+		xz_dec_reset(s);
+		finish = true;
+	}
+
+	while (true) {
+		if (s->sequence == SEQ_STREAM_PADDING) {
+			/*
+			 * Skip Stream Padding. Its size must be a multiple
+			 * of four bytes which is tracked with s->pos.
+			 */
+			while (true) {
+				if (b->in_pos == b->in_size) {
+					/*
+					 * Note that if we are repeatedly
+					 * given no input and finish is false,
+					 * we will keep returning XZ_OK even
+					 * though no progress is being made.
+					 * The lack of XZ_BUF_ERROR support
+					 * isn't a problem here because a
+					 * reasonable caller will eventually
+					 * provide more input or set finish
+					 * to true.
+					 */
+					if (!finish)
+						return XZ_OK;
+
+					if (s->pos != 0)
+						return XZ_DATA_ERROR;
+
+					return XZ_STREAM_END;
+				}
+
+				if (b->in[b->in_pos] != 0x00) {
+					if (s->pos != 0)
+						return XZ_DATA_ERROR;
+
+					break;
+				}
+
+				++b->in_pos;
+				s->pos = (s->pos + 1) & 3;
+			}
+
+			/*
+			 * More input remains. It should be a new Stream.
+			 *
+			 * In single-call mode xz_dec_run() will always call
+			 * xz_dec_reset(). Thus, we need to do it here only
+			 * in multi-call mode.
+			 */
+			if (DEC_IS_MULTI(s->mode))
+				xz_dec_reset(s);
+		}
+
+		ret = xz_dec_run(s, b);
+
+		if (ret != XZ_STREAM_END)
+			break;
+
+		s->sequence = SEQ_STREAM_PADDING;
+	}
+
+	return ret;
+}
+#endif
+
+XZ_EXTERN struct xz_dec *xz_dec_init(enum xz_mode mode, uint32_t dict_max)
+{
+	struct xz_dec *s = kmalloc(sizeof(*s), GFP_KERNEL);
+	if (s == NULL)
+		return NULL;
+
+	s->mode = mode;
+
+#ifdef XZ_DEC_BCJ
+	s->bcj = xz_dec_bcj_create(DEC_IS_SINGLE(mode));
+	if (s->bcj == NULL)
+		goto error_bcj;
+#endif
+
+	s->lzma2 = xz_dec_lzma2_create(mode, dict_max);
+	if (s->lzma2 == NULL)
+		goto error_lzma2;
+
+	xz_dec_reset(s);
+	return s;
+
+error_lzma2:
+#ifdef XZ_DEC_BCJ
+	xz_dec_bcj_end(s->bcj);
+error_bcj:
+#endif
+	kfree(s);
+	return NULL;
+}
+
+XZ_EXTERN void xz_dec_reset(struct xz_dec *s)
+{
+	s->sequence = SEQ_STREAM_HEADER;
+	s->allow_buf_error = false;
+	s->pos = 0;
+	s->crc = 0;
+	memzero(&s->block, sizeof(s->block));
+	memzero(&s->index, sizeof(s->index));
+	s->temp.pos = 0;
+	s->temp.size = STREAM_HEADER_SIZE;
+}
+
+XZ_EXTERN void xz_dec_end(struct xz_dec *s)
+{
+	if (s != NULL) {
+		xz_dec_lzma2_end(s->lzma2);
+#ifdef XZ_DEC_BCJ
+		xz_dec_bcj_end(s->bcj);
+#endif
+		kfree(s);
+	}
+}

android/app/src/main/cpp/xz/xz_lzma2.h

@@ -0,0 +1,203 @@
+/* SPDX-License-Identifier: 0BSD */
+
+/*
+ * LZMA2 definitions
+ *
+ * Authors: Lasse Collin <lasse.collin@tukaani.org>
+ *          Igor Pavlov <https://7-zip.org/>
+ */
+
+#ifndef XZ_LZMA2_H
+#define XZ_LZMA2_H
+
+/* Range coder constants */
+#define RC_SHIFT_BITS 8
+#define RC_TOP_BITS 24
+#define RC_TOP_VALUE (1 << RC_TOP_BITS)
+#define RC_BIT_MODEL_TOTAL_BITS 11
+#define RC_BIT_MODEL_TOTAL (1 << RC_BIT_MODEL_TOTAL_BITS)
+#define RC_MOVE_BITS 5
+
+/*
+ * Maximum number of position states. A position state is the lowest pb
+ * number of bits of the current uncompressed offset. In some places there
+ * are different sets of probabilities for different position states.
+ */
+#define POS_STATES_MAX (1 << 4)
+
+/*
+ * This enum is used to track which LZMA symbols have occurred most recently
+ * and in which order. This information is used to predict the next symbol.
+ *
+ * Symbols:
+ *  - Literal: One 8-bit byte
+ *  - Match: Repeat a chunk of data at some distance
+ *  - Long repeat: Multi-byte match at a recently seen distance
+ *  - Short repeat: One-byte repeat at a recently seen distance
+ *
+ * The symbol names are in from STATE_oldest_older_previous. REP means
+ * either short or long repeated match, and NONLIT means any non-literal.
+ */
+enum lzma_state {
+	STATE_LIT_LIT,
+	STATE_MATCH_LIT_LIT,
+	STATE_REP_LIT_LIT,
+	STATE_SHORTREP_LIT_LIT,
+	STATE_MATCH_LIT,
+	STATE_REP_LIT,
+	STATE_SHORTREP_LIT,
+	STATE_LIT_MATCH,
+	STATE_LIT_LONGREP,
+	STATE_LIT_SHORTREP,
+	STATE_NONLIT_MATCH,
+	STATE_NONLIT_REP
+};
+
+/* Total number of states */
+#define STATES 12
+
+/* The lowest 7 states indicate that the previous state was a literal. */
+#define LIT_STATES 7
+
+/* Indicate that the latest symbol was a literal. */
+static inline void lzma_state_literal(enum lzma_state *state)
+{
+	if (*state <= STATE_SHORTREP_LIT_LIT)
+		*state = STATE_LIT_LIT;
+	else if (*state <= STATE_LIT_SHORTREP)
+		*state -= 3;
+	else
+		*state -= 6;
+}
+
+/* Indicate that the latest symbol was a match. */
+static inline void lzma_state_match(enum lzma_state *state)
+{
+	*state = *state < LIT_STATES ? STATE_LIT_MATCH : STATE_NONLIT_MATCH;
+}
+
+/* Indicate that the latest state was a long repeated match. */
+static inline void lzma_state_long_rep(enum lzma_state *state)
+{
+	*state = *state < LIT_STATES ? STATE_LIT_LONGREP : STATE_NONLIT_REP;
+}
+
+/* Indicate that the latest symbol was a short match. */
+static inline void lzma_state_short_rep(enum lzma_state *state)
+{
+	*state = *state < LIT_STATES ? STATE_LIT_SHORTREP : STATE_NONLIT_REP;
+}
+
+/* Test if the previous symbol was a literal. */
+static inline bool lzma_state_is_literal(enum lzma_state state)
+{
+	return state < LIT_STATES;
+}
+
+/* Each literal coder is divided in three sections:
+ *   - 0x001-0x0FF: Without match byte
+ *   - 0x101-0x1FF: With match byte; match bit is 0
+ *   - 0x201-0x2FF: With match byte; match bit is 1
+ *
+ * Match byte is used when the previous LZMA symbol was something else than
+ * a literal (that is, it was some kind of match).
+ */
+#define LITERAL_CODER_SIZE 0x300
+
+/* Maximum number of literal coders */
+#define LITERAL_CODERS_MAX (1 << 4)
+
+/* Minimum length of a match is two bytes. */
+#define MATCH_LEN_MIN 2
+
+/* Match length is encoded with 4, 5, or 10 bits.
+ *
+ * Length   Bits
+ *  2-9      4 = Choice=0 + 3 bits
+ * 10-17     5 = Choice=1 + Choice2=0 + 3 bits
+ * 18-273   10 = Choice=1 + Choice2=1 + 8 bits
+ */
+#define LEN_LOW_BITS 3
+#define LEN_LOW_SYMBOLS (1 << LEN_LOW_BITS)
+#define LEN_MID_BITS 3
+#define LEN_MID_SYMBOLS (1 << LEN_MID_BITS)
+#define LEN_HIGH_BITS 8
+#define LEN_HIGH_SYMBOLS (1 << LEN_HIGH_BITS)
+#define LEN_SYMBOLS (LEN_LOW_SYMBOLS + LEN_MID_SYMBOLS + LEN_HIGH_SYMBOLS)
+
+/*
+ * Maximum length of a match is 273 which is a result of the encoding
+ * described above.
+ */
+#define MATCH_LEN_MAX (MATCH_LEN_MIN + LEN_SYMBOLS - 1)
+
+/*
+ * Different sets of probabilities are used for match distances that have
+ * very short match length: Lengths of 2, 3, and 4 bytes have a separate
+ * set of probabilities for each length. The matches with longer length
+ * use a shared set of probabilities.
+ */
+#define DIST_STATES 4
+
+/*
+ * Get the index of the appropriate probability array for decoding
+ * the distance slot.
+ */
+static inline uint32_t lzma_get_dist_state(uint32_t len)
+{
+	return len < DIST_STATES + MATCH_LEN_MIN
+			? len - MATCH_LEN_MIN : DIST_STATES - 1;
+}
+
+/*
+ * The highest two bits of a 32-bit match distance are encoded using six bits.
+ * This six-bit value is called a distance slot. This way encoding a 32-bit
+ * value takes 6-36 bits, larger values taking more bits.
+ */
+#define DIST_SLOT_BITS 6
+#define DIST_SLOTS (1 << DIST_SLOT_BITS)
+
+/* Match distances up to 127 are fully encoded using probabilities. Since
+ * the highest two bits (distance slot) are always encoded using six bits,
+ * the distances 0-3 don't need any additional bits to encode, since the
+ * distance slot itself is the same as the actual distance. DIST_MODEL_START
+ * indicates the first distance slot where at least one additional bit is
+ * needed.
+ */
+#define DIST_MODEL_START 4
+
+/*
+ * Match distances greater than 127 are encoded in three pieces:
+ *   - distance slot: the highest two bits
+ *   - direct bits: 2-26 bits below the highest two bits
+ *   - alignment bits: four lowest bits
+ *
+ * Direct bits don't use any probabilities.
+ *
+ * The distance slot value of 14 is for distances 128-191.
+ */
+#define DIST_MODEL_END 14
+
+/* Distance slots that indicate a distance <= 127. */
+#define FULL_DISTANCES_BITS (DIST_MODEL_END / 2)
+#define FULL_DISTANCES (1 << FULL_DISTANCES_BITS)
+
+/*
+ * For match distances greater than 127, only the highest two bits and the
+ * lowest four bits (alignment) is encoded using probabilities.
+ */
+#define ALIGN_BITS 4
+#define ALIGN_SIZE (1 << ALIGN_BITS)
+#define ALIGN_MASK (ALIGN_SIZE - 1)
+
+/* Total number of all probability variables */
+#define PROBS_TOTAL (1846 + LITERAL_CODERS_MAX * LITERAL_CODER_SIZE)
+
+/*
+ * LZMA remembers the four most recent match distances. Reusing these
+ * distances tends to take less space than re-encoding the actual
+ * distance value.
+ */
+#define REPS 4
+
+#endif

android/app/src/main/cpp/xz/xz_private.h

@@ -0,0 +1,189 @@
+/* SPDX-License-Identifier: 0BSD */
+
+/*
+ * Private includes and definitions
+ *
+ * Author: Lasse Collin <lasse.collin@tukaani.org>
+ */
+
+#ifndef XZ_PRIVATE_H
+#define XZ_PRIVATE_H
+
+#ifdef __KERNEL__
+#	include <linux/xz.h>
+#	include <linux/kernel.h>
+#	include <linux/unaligned.h>
+	/* XZ_PREBOOT may be defined only via decompress_unxz.c. */
+#	ifndef XZ_PREBOOT
+#		include <linux/slab.h>
+#		include <linux/vmalloc.h>
+#		include <linux/string.h>
+#		ifdef CONFIG_XZ_DEC_X86
+#			define XZ_DEC_X86
+#		endif
+#		ifdef CONFIG_XZ_DEC_POWERPC
+#			define XZ_DEC_POWERPC
+#		endif
+#		ifdef CONFIG_XZ_DEC_IA64
+#			define XZ_DEC_IA64
+#		endif
+#		ifdef CONFIG_XZ_DEC_ARM
+#			define XZ_DEC_ARM
+#		endif
+#		ifdef CONFIG_XZ_DEC_ARMTHUMB
+#			define XZ_DEC_ARMTHUMB
+#		endif
+#		ifdef CONFIG_XZ_DEC_SPARC
+#			define XZ_DEC_SPARC
+#		endif
+#		ifdef CONFIG_XZ_DEC_ARM64
+#			define XZ_DEC_ARM64
+#		endif
+#		ifdef CONFIG_XZ_DEC_RISCV
+#			define XZ_DEC_RISCV
+#		endif
+#		ifdef CONFIG_XZ_DEC_MICROLZMA
+#			define XZ_DEC_MICROLZMA
+#		endif
+#		define memeq(a, b, size) (memcmp(a, b, size) == 0)
+#		define memzero(buf, size) memset(buf, 0, size)
+#	endif
+#	define get_le32(p) le32_to_cpup((const uint32_t *)(p))
+#else
+	/*
+	 * For userspace builds, use a separate header to define the required
+	 * macros and functions. This makes it easier to adapt the code into
+	 * different environments and avoids clutter in the Linux kernel tree.
+	 */
+#	include "xz_config.h"
+#endif
+
+/* If no specific decoding mode is requested, enable support for all modes. */
+#if !defined(XZ_DEC_SINGLE) && !defined(XZ_DEC_PREALLOC) \
+		&& !defined(XZ_DEC_DYNALLOC)
+#	define XZ_DEC_SINGLE
+#	define XZ_DEC_PREALLOC
+#	define XZ_DEC_DYNALLOC
+#endif
+
+/*
+ * The DEC_IS_foo(mode) macros are used in "if" statements. If only some
+ * of the supported modes are enabled, these macros will evaluate to true or
+ * false at compile time and thus allow the compiler to omit unneeded code.
+ */
+#ifdef XZ_DEC_SINGLE
+#	define DEC_IS_SINGLE(mode) ((mode) == XZ_SINGLE)
+#else
+#	define DEC_IS_SINGLE(mode) (false)
+#endif
+
+#ifdef XZ_DEC_PREALLOC
+#	define DEC_IS_PREALLOC(mode) ((mode) == XZ_PREALLOC)
+#else
+#	define DEC_IS_PREALLOC(mode) (false)
+#endif
+
+#ifdef XZ_DEC_DYNALLOC
+#	define DEC_IS_DYNALLOC(mode) ((mode) == XZ_DYNALLOC)
+#else
+#	define DEC_IS_DYNALLOC(mode) (false)
+#endif
+
+#if !defined(XZ_DEC_SINGLE)
+#	define DEC_IS_MULTI(mode) (true)
+#elif defined(XZ_DEC_PREALLOC) || defined(XZ_DEC_DYNALLOC)
+#	define DEC_IS_MULTI(mode) ((mode) != XZ_SINGLE)
+#else
+#	define DEC_IS_MULTI(mode) (false)
+#endif
+
+/*
+ * If any of the BCJ filter decoders are wanted, define XZ_DEC_BCJ.
+ * XZ_DEC_BCJ is used to enable generic support for BCJ decoders.
+ */
+#ifndef XZ_DEC_BCJ
+#	if defined(XZ_DEC_X86) || defined(XZ_DEC_POWERPC) \
+			|| defined(XZ_DEC_IA64) \
+			|| defined(XZ_DEC_ARM) || defined(XZ_DEC_ARMTHUMB) \
+			|| defined(XZ_DEC_SPARC) || defined(XZ_DEC_ARM64) \
+			|| defined(XZ_DEC_RISCV)
+#		define XZ_DEC_BCJ
+#	endif
+#endif
+
+struct xz_sha256 {
+	/* Buffered input data */
+	uint8_t data[64];
+
+	/* Internal state and the final hash value */
+	uint32_t state[8];
+
+	/* Size of the input data */
+	uint64_t size;
+};
+
+/* Reset the SHA-256 state to prepare for a new calculation. */
+XZ_EXTERN void xz_sha256_reset(struct xz_sha256 *s);
+
+/* Update the SHA-256 state with new data. */
+XZ_EXTERN void xz_sha256_update(const uint8_t *buf, size_t size,
+				struct xz_sha256 *s);
+
+/*
+ * Finish the SHA-256 calculation. Compare the result with the first 32 bytes
+ * from buf. Return true if the values are equal and false if they aren't.
+ */
+XZ_EXTERN bool xz_sha256_validate(const uint8_t *buf, struct xz_sha256 *s);
+
+/*
+ * Allocate memory for LZMA2 decoder. xz_dec_lzma2_reset() must be used
+ * before calling xz_dec_lzma2_run().
+ */
+XZ_EXTERN struct xz_dec_lzma2 *xz_dec_lzma2_create(enum xz_mode mode,
+						   uint32_t dict_max);
+
+/*
+ * Decode the LZMA2 properties (one byte) and reset the decoder. Return
+ * XZ_OK on success, XZ_MEMLIMIT_ERROR if the preallocated dictionary is not
+ * big enough, and XZ_OPTIONS_ERROR if props indicates something that this
+ * decoder doesn't support.
+ */
+XZ_EXTERN enum xz_ret xz_dec_lzma2_reset(struct xz_dec_lzma2 *s,
+					 uint8_t props);
+
+/* Decode raw LZMA2 stream from b->in to b->out. */
+XZ_EXTERN enum xz_ret xz_dec_lzma2_run(struct xz_dec_lzma2 *s,
+				       struct xz_buf *b);
+
+/* Free the memory allocated for the LZMA2 decoder. */
+XZ_EXTERN void xz_dec_lzma2_end(struct xz_dec_lzma2 *s);
+
+#ifdef XZ_DEC_BCJ
+/*
+ * Allocate memory for BCJ decoders. xz_dec_bcj_reset() must be used before
+ * calling xz_dec_bcj_run().
+ */
+XZ_EXTERN struct xz_dec_bcj *xz_dec_bcj_create(bool single_call);
+
+/*
+ * Decode the Filter ID of a BCJ filter. This implementation doesn't
+ * support custom start offsets, so no decoding of Filter Properties
+ * is needed. Returns XZ_OK if the given Filter ID is supported.
+ * Otherwise XZ_OPTIONS_ERROR is returned.
+ */
+XZ_EXTERN enum xz_ret xz_dec_bcj_reset(struct xz_dec_bcj *s, uint8_t id);
+
+/*
+ * Decode raw BCJ + LZMA2 stream. This must be used only if there actually is
+ * a BCJ filter in the chain. If the chain has only LZMA2, xz_dec_lzma2_run()
+ * must be called directly.
+ */
+XZ_EXTERN enum xz_ret xz_dec_bcj_run(struct xz_dec_bcj *s,
+				     struct xz_dec_lzma2 *lzma2,
+				     struct xz_buf *b);
+
+/* Free the memory allocated for the BCJ filters. */
+#define xz_dec_bcj_end(s) kfree(s)
+#endif
+
+#endif

android/app/src/main/cpp/xz/xz_sha256.c

@@ -0,0 +1,182 @@
+// SPDX-License-Identifier: 0BSD
+
+/*
+ * SHA-256
+ *
+ * This is based on the XZ Utils version which is based public domain code
+ * from Crypto++ Library 5.5.1 released in 2007: https://www.cryptopp.com/
+ *
+ * Authors: Wei Dai
+ *          Lasse Collin <lasse.collin@tukaani.org>
+ */
+
+#include "xz_private.h"
+
+static inline uint32_t
+rotr_32(uint32_t num, unsigned amount)
+{
+	return (num >> amount) | (num << (32 - amount));
+}
+
+#define blk0(i) (W[i] = get_be32(&data[4 * i]))
+#define blk2(i) (W[i & 15] += s1(W[(i - 2) & 15]) + W[(i - 7) & 15] \
+		+ s0(W[(i - 15) & 15]))
+
+#define Ch(x, y, z) (z ^ (x & (y ^ z)))
+#define Maj(x, y, z) ((x & (y ^ z)) + (y & z))
+
+#define a(i) T[(0 - i) & 7]
+#define b(i) T[(1 - i) & 7]
+#define c(i) T[(2 - i) & 7]
+#define d(i) T[(3 - i) & 7]
+#define e(i) T[(4 - i) & 7]
+#define f(i) T[(5 - i) & 7]
+#define g(i) T[(6 - i) & 7]
+#define h(i) T[(7 - i) & 7]
+
+#define R(i, j, blk) \
+	h(i) += S1(e(i)) + Ch(e(i), f(i), g(i)) + SHA256_K[i + j] + blk; \
+	d(i) += h(i); \
+	h(i) += S0(a(i)) + Maj(a(i), b(i), c(i))
+#define R0(i) R(i, 0, blk0(i))
+#define R2(i) R(i, j, blk2(i))
+
+#define S0(x) rotr_32(x ^ rotr_32(x ^ rotr_32(x, 9), 11), 2)
+#define S1(x) rotr_32(x ^ rotr_32(x ^ rotr_32(x, 14), 5), 6)
+#define s0(x) (rotr_32(x ^ rotr_32(x, 11), 7) ^ (x >> 3))
+#define s1(x) (rotr_32(x ^ rotr_32(x, 2), 17) ^ (x >> 10))
+
+static const uint32_t SHA256_K[64] = {
+	0x428A2F98, 0x71374491, 0xB5C0FBCF, 0xE9B5DBA5,
+	0x3956C25B, 0x59F111F1, 0x923F82A4, 0xAB1C5ED5,
+	0xD807AA98, 0x12835B01, 0x243185BE, 0x550C7DC3,
+	0x72BE5D74, 0x80DEB1FE, 0x9BDC06A7, 0xC19BF174,
+	0xE49B69C1, 0xEFBE4786, 0x0FC19DC6, 0x240CA1CC,
+	0x2DE92C6F, 0x4A7484AA, 0x5CB0A9DC, 0x76F988DA,
+	0x983E5152, 0xA831C66D, 0xB00327C8, 0xBF597FC7,
+	0xC6E00BF3, 0xD5A79147, 0x06CA6351, 0x14292967,
+	0x27B70A85, 0x2E1B2138, 0x4D2C6DFC, 0x53380D13,
+	0x650A7354, 0x766A0ABB, 0x81C2C92E, 0x92722C85,
+	0xA2BFE8A1, 0xA81A664B, 0xC24B8B70, 0xC76C51A3,
+	0xD192E819, 0xD6990624, 0xF40E3585, 0x106AA070,
+	0x19A4C116, 0x1E376C08, 0x2748774C, 0x34B0BCB5,
+	0x391C0CB3, 0x4ED8AA4A, 0x5B9CCA4F, 0x682E6FF3,
+	0x748F82EE, 0x78A5636F, 0x84C87814, 0x8CC70208,
+	0x90BEFFFA, 0xA4506CEB, 0xBEF9A3F7, 0xC67178F2
+};
+
+static void
+transform(uint32_t state[8], const uint8_t data[64])
+{
+	uint32_t W[16];
+	uint32_t T[8];
+	unsigned int j;
+
+	/* Copy state[] to working vars. */
+	memcpy(T, state, sizeof(T));
+
+	/* The first 16 operations unrolled */
+	R0( 0); R0( 1); R0( 2); R0( 3);
+	R0( 4); R0( 5); R0( 6); R0( 7);
+	R0( 8); R0( 9); R0(10); R0(11);
+	R0(12); R0(13); R0(14); R0(15);
+
+	/* The remaining 48 operations partially unrolled */
+	for (j = 16; j < 64; j += 16) {
+		R2( 0); R2( 1); R2( 2); R2( 3);
+		R2( 4); R2( 5); R2( 6); R2( 7);
+		R2( 8); R2( 9); R2(10); R2(11);
+		R2(12); R2(13); R2(14); R2(15);
+	}
+
+	/* Add the working vars back into state[]. */
+	state[0] += a(0);
+	state[1] += b(0);
+	state[2] += c(0);
+	state[3] += d(0);
+	state[4] += e(0);
+	state[5] += f(0);
+	state[6] += g(0);
+	state[7] += h(0);
+}
+
+XZ_EXTERN void xz_sha256_reset(struct xz_sha256 *s)
+{
+	static const uint32_t initial_state[8] = {
+		0x6A09E667, 0xBB67AE85, 0x3C6EF372, 0xA54FF53A,
+		0x510E527F, 0x9B05688C, 0x1F83D9AB, 0x5BE0CD19
+	};
+
+	memcpy(s->state, initial_state, sizeof(initial_state));
+	s->size = 0;
+}
+
+XZ_EXTERN void xz_sha256_update(const uint8_t *buf, size_t size,
+				struct xz_sha256 *s)
+{
+	size_t copy_start;
+	size_t copy_size;
+
+	/*
+	 * Copy the input data into a properly aligned temporary buffer.
+	 * This way we can be called with arbitrarily sized buffers
+	 * (no need to be a multiple of 64 bytes).
+	 *
+	 * Full 64-byte chunks could be processed directly from buf with
+	 * unaligned access. It seemed to make very little difference in
+	 * speed on x86-64 though. Thus it was omitted.
+	 */
+	while (size > 0) {
+		copy_start = s->size & 0x3F;
+		copy_size = 64 - copy_start;
+		if (copy_size > size)
+			copy_size = size;
+
+		memcpy(s->data + copy_start, buf, copy_size);
+
+		buf += copy_size;
+		size -= copy_size;
+		s->size += copy_size;
+
+		if ((s->size & 0x3F) == 0)
+			transform(s->state, s->data);
+	}
+}
+
+XZ_EXTERN bool xz_sha256_validate(const uint8_t *buf, struct xz_sha256 *s)
+{
+	/*
+	 * Add padding as described in RFC 3174 (it describes SHA-1 but
+	 * the same padding style is used for SHA-256 too).
+	 */
+	size_t i = s->size & 0x3F;
+	s->data[i++] = 0x80;
+
+	while (i != 64 - 8) {
+		if (i == 64) {
+			transform(s->state, s->data);
+			i = 0;
+		}
+
+		s->data[i++] = 0x00;
+	}
+
+	/* Convert the message size from bytes to bits. */
+	s->size *= 8;
+
+	/*
+	 * Store the message size in big endian byte order and
+	 * calculate the final hash value.
+	 */
+	for (i = 0; i < 8; ++i)
+		s->data[64 - 8 + i] = (uint8_t)(s->size >> ((7 - i) * 8));
+
+	transform(s->state, s->data);
+
+	/* Compare if the hash value matches the first 32 bytes in buf. */
+	for (i = 0; i < 8; ++i)
+		if (get_unaligned_be32(buf + 4 * i) != s->state[i])
+			return false;
+
+	return true;
+}

android/app/src/main/cpp/xz/xz_stream.h

@@ -0,0 +1,61 @@
+/* SPDX-License-Identifier: 0BSD */
+
+/*
+ * Definitions for handling the .xz file format
+ *
+ * Author: Lasse Collin <lasse.collin@tukaani.org>
+ */
+
+#ifndef XZ_STREAM_H
+#define XZ_STREAM_H
+
+#if defined(__KERNEL__) && !XZ_INTERNAL_CRC32
+#	include <linux/crc32.h>
+#	undef crc32
+#	define xz_crc32(buf, size, crc) \
+		(~crc32_le(~(uint32_t)(crc), buf, size))
+#endif
+
+/*
+ * See the .xz file format specification at
+ * https://tukaani.org/xz/xz-file-format.txt
+ * to understand the container format.
+ */
+
+#define STREAM_HEADER_SIZE 12
+
+#define HEADER_MAGIC "\3757zXZ"
+#define HEADER_MAGIC_SIZE 6
+
+#define FOOTER_MAGIC "YZ"
+#define FOOTER_MAGIC_SIZE 2
+
+/*
+ * Variable-length integer can hold a 63-bit unsigned integer or a special
+ * value indicating that the value is unknown.
+ *
+ * Experimental: vli_type can be defined to uint32_t to save a few bytes
+ * in code size (no effect on speed). Doing so limits the uncompressed and
+ * compressed size of the file to less than 256 MiB and may also weaken
+ * error detection slightly.
+ */
+typedef uint64_t vli_type;
+
+#define VLI_MAX ((vli_type)-1 / 2)
+#define VLI_UNKNOWN ((vli_type)-1)
+
+/* Maximum encoded size of a VLI */
+#define VLI_BYTES_MAX (sizeof(vli_type) * 8 / 7)
+
+/* Integrity Check types */
+enum xz_check {
+	XZ_CHECK_NONE = 0,
+	XZ_CHECK_CRC32 = 1,
+	XZ_CHECK_CRC64 = 4,
+	XZ_CHECK_SHA256 = 10
+};
+
+/* Maximum possible Check ID */
+#define XZ_CHECK_MAX 15
+
+#endif

android/app/src/main/java/me/kavishdevar/librepods/LibrePodsApplication.kt

@@ -0,0 +1,41 @@
+package me.kavishdevar.librepods
+
+import android.app.Application
+import androidx.lifecycle.DefaultLifecycleObserver
+import androidx.lifecycle.LifecycleOwner
+import androidx.lifecycle.ProcessLifecycleOwner
+import io.github.libxposed.service.XposedService
+import io.github.libxposed.service.XposedServiceHelper
+import me.kavishdevar.librepods.billing.BillingManager
+import me.kavishdevar.librepods.billing.BillingProviderFactory
+import me.kavishdevar.librepods.utils.XposedServiceHolder
+import me.kavishdevar.librepods.utils.XposedState
+
+class LibrePodsApplication: Application(), XposedServiceHelper.OnServiceListener, DefaultLifecycleObserver {
+
+    override fun onCreate() {
+        XposedServiceHelper.registerListener(this)
+        BillingManager.provider = BillingProviderFactory.create(this)
+        ProcessLifecycleOwner.get().lifecycle.addObserver(this)
+
+        super<Application>.onCreate()
+
+    }
+
+    override fun onResume(owner: LifecycleOwner) {
+        BillingManager.provider.queryPurchases()
+        XposedState.isAvailable = XposedServiceHolder.service != null
+        XposedState.bluetoothScopeEnabled = XposedServiceHolder.service?.scope?.contains("com.google.android.bluetooth") == true || XposedServiceHolder.service?.scope?.contains("com.android.bluetooth") == true
+    }
+
+    override fun onServiceBind(service: XposedService) {
+        XposedServiceHolder.service = service
+        XposedState.isAvailable = true
+        XposedState.bluetoothScopeEnabled = XposedServiceHolder.service?.scope?.contains("com.google.android.bluetooth") == true || XposedServiceHolder.service?.scope?.contains("com.android.bluetooth") == true
+    }
+
+    override fun onServiceDied(p0: XposedService) {
+        XposedServiceHolder.service = null
+        XposedState.isAvailable = false
+    }
+}

android/app/src/main/java/me/kavishdevar/librepods/MainActivity.kt

@@ -20,20 +20,22 @@
 
 package me.kavishdevar.librepods
 
+// import me.kavishdevar.librepods.screens.Onboarding
+// import me.kavishdevar.librepods.utils.RadareOffsetFinder
+//import dagger.hilt.android.AndroidEntryPoint
 import android.annotation.SuppressLint
+import android.app.Activity
 import android.content.BroadcastReceiver
 import android.content.ComponentName
 import android.content.Context
 import android.content.Context.MODE_PRIVATE
 import android.content.Intent
 import android.content.ServiceConnection
-import android.net.Uri
 import android.os.Build
 import android.os.Bundle
 import android.os.IBinder
 import android.provider.Settings
 import android.util.Log
-import android.widget.Toast
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
 import androidx.activity.enableEdgeToEdge
@@ -52,6 +54,7 @@ import androidx.compose.animation.slideOutHorizontally
 import androidx.compose.foundation.Canvas
 import androidx.compose.foundation.background
 import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Row
@@ -73,7 +76,6 @@ import androidx.compose.material3.Card
 import androidx.compose.material3.CardDefaults
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.Icon
-import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
@@ -88,7 +90,6 @@ import androidx.compose.ui.draw.scale
 import androidx.compose.ui.geometry.Offset
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.drawscope.rotate
-import androidx.compose.ui.graphics.toArgb
 import androidx.compose.ui.graphics.vector.ImageVector
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.platform.LocalWindowInfo
@@ -103,6 +104,7 @@ import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import androidx.core.content.edit
 import androidx.core.net.toUri
+import androidx.lifecycle.viewmodel.compose.viewModel
 import androidx.navigation.compose.NavHost
 import androidx.navigation.compose.composable
 import androidx.navigation.compose.rememberNavController
@@ -110,46 +112,60 @@ import com.google.accompanist.permissions.ExperimentalPermissionsApi
 import com.google.accompanist.permissions.MultiplePermissionsState
 import com.google.accompanist.permissions.isGranted
 import com.google.accompanist.permissions.rememberMultiplePermissionsState
+import com.google.android.play.core.review.ReviewManagerFactory
 import com.kyant.backdrop.backdrops.layerBackdrop
 import com.kyant.backdrop.backdrops.rememberLayerBackdrop
+import dev.chrisbanes.haze.hazeSource
 import dev.chrisbanes.haze.materials.ExperimentalHazeMaterialsApi
-import me.kavishdevar.librepods.composables.StyledIconButton
-import me.kavishdevar.librepods.constants.AirPodsNotifications
-import me.kavishdevar.librepods.screens.AccessibilitySettingsScreen
-import me.kavishdevar.librepods.screens.AdaptiveStrengthScreen
-import me.kavishdevar.librepods.screens.AirPodsSettingsScreen
-import me.kavishdevar.librepods.screens.AppSettingsScreen
-import me.kavishdevar.librepods.screens.CameraControlScreen
-import me.kavishdevar.librepods.screens.DebugScreen
-import me.kavishdevar.librepods.screens.HeadTrackingScreen
-import me.kavishdevar.librepods.screens.HearingAidAdjustmentsScreen
-import me.kavishdevar.librepods.screens.HearingAidScreen
-import me.kavishdevar.librepods.screens.HearingProtectionScreen
-import me.kavishdevar.librepods.screens.LongPress
-import me.kavishdevar.librepods.screens.Onboarding
-import me.kavishdevar.librepods.screens.OpenSourceLicensesScreen
-import me.kavishdevar.librepods.screens.RenameScreen
-import me.kavishdevar.librepods.screens.TransparencySettingsScreen
-import me.kavishdevar.librepods.screens.TroubleshootingScreen
-import me.kavishdevar.librepods.screens.UpdateHearingTestScreen
-import me.kavishdevar.librepods.screens.VersionScreen
+import dev.chrisbanes.haze.rememberHazeState
+import me.kavishdevar.librepods.data.AirPodsNotifications
+import me.kavishdevar.librepods.data.ControlCommandRepository
+import me.kavishdevar.librepods.presentation.components.AppInfoCard
+import me.kavishdevar.librepods.presentation.components.DeviceInfoCard
+import me.kavishdevar.librepods.presentation.components.StyledIconButton
+import me.kavishdevar.librepods.presentation.screens.AccessibilitySettingsScreen
+import me.kavishdevar.librepods.presentation.screens.AdaptiveStrengthScreen
+import me.kavishdevar.librepods.presentation.screens.AirPodsSettingsScreen
+import me.kavishdevar.librepods.presentation.screens.AppSettingsScreen
+import me.kavishdevar.librepods.presentation.screens.CameraControlScreen
+import me.kavishdevar.librepods.presentation.screens.DebugScreen
+import me.kavishdevar.librepods.presentation.screens.HeadTrackingScreen
+import me.kavishdevar.librepods.presentation.screens.HearingAidAdjustmentsScreen
+import me.kavishdevar.librepods.presentation.screens.HearingAidScreen
+import me.kavishdevar.librepods.presentation.screens.HearingProtectionScreen
+import me.kavishdevar.librepods.presentation.screens.LongPress
+import me.kavishdevar.librepods.presentation.screens.OpenSourceLicensesScreen
+import me.kavishdevar.librepods.presentation.screens.PurchaseScreen
+import me.kavishdevar.librepods.presentation.screens.RenameScreen
+import me.kavishdevar.librepods.presentation.screens.TransparencySettingsScreen
+import me.kavishdevar.librepods.presentation.screens.TroubleshootingScreen
+import me.kavishdevar.librepods.presentation.screens.UpdateHearingTestScreen
+import me.kavishdevar.librepods.presentation.screens.VersionScreen
+import me.kavishdevar.librepods.presentation.theme.LibrePodsTheme
+import me.kavishdevar.librepods.presentation.viewmodel.AirPodsViewModel
+import me.kavishdevar.librepods.presentation.viewmodel.AppSettingsViewModel
+import me.kavishdevar.librepods.presentation.viewmodel.PurchaseViewModel
 import me.kavishdevar.librepods.services.AirPodsService
-import me.kavishdevar.librepods.ui.theme.LibrePodsTheme
-import me.kavishdevar.librepods.utils.RadareOffsetFinder
-import kotlin.io.encoding.Base64
+import me.kavishdevar.librepods.utils.XposedState
+import me.kavishdevar.librepods.utils.isSupported
 import kotlin.io.encoding.ExperimentalEncodingApi
 
 lateinit var serviceConnection: ServiceConnection
 lateinit var connectionStatusReceiver: BroadcastReceiver
+lateinit var testReviewReceiver: BroadcastReceiver
 
+//@AndroidEntryPoint
 @ExperimentalMaterial3Api
 class MainActivity : ComponentActivity() {
     companion object {
         init {
-            System.loadLibrary("l2c_fcr_hook")
+            if (XposedState.isAvailable && XposedState.bluetoothScopeEnabled) {
+                System.loadLibrary("l2c_fcr_hook")
+            }
         }
     }
 
+    @ExperimentalHazeMaterialsApi
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         enableEdgeToEdge()
@@ -159,8 +175,6 @@ class MainActivity : ComponentActivity() {
                 Main()
             }
         }
-
-        handleIncomingIntent(intent)
     }
 
     override fun onDestroy() {
@@ -195,82 +209,108 @@ class MainActivity : ComponentActivity() {
         }
         super.onStop()
     }
-
-    override fun onNewIntent(intent: Intent) {
-        super.onNewIntent(intent)
-        setIntent(intent)
-        handleIncomingIntent(intent)
-    }
-
-    private fun handleIncomingIntent(intent: Intent) {
-        val data: Uri? = intent.data
-
-        if (data != null && data.scheme == "librepods") {
-            when (data.host) {
-                "add-magic-keys" -> {
-                    val queryParams = data.queryParameterNames
-                    queryParams.forEach { param ->
-                        val value = data.getQueryParameter(param)
-                        Log.d("LibrePods", "Parameter: $param = $value")
-                    }
-
-                    handleAddMagicKeys(data)
-                }
-            }
-        }
-    }
-
-    private fun handleAddMagicKeys(uri: Uri) {
-        val sharedPreferences = getSharedPreferences("settings", MODE_PRIVATE)
-
-        val irkHex = uri.getQueryParameter("irk")
-        val encKeyHex = uri.getQueryParameter("enc_key")
-
-        try {
-            if (irkHex != null && validateHexInput(irkHex)) {
-                val irkBytes = hexStringToByteArray(irkHex)
-                val irkBase64 = Base64.encode(irkBytes)
-                sharedPreferences.edit {putString("IRK", irkBase64)}
-            }
-
-            if (encKeyHex != null && validateHexInput(encKeyHex)) {
-                val encKeyBytes = hexStringToByteArray(encKeyHex)
-                val encKeyBase64 = Base64.encode(encKeyBytes)
-                sharedPreferences.edit { putString("ENC_KEY", encKeyBase64)}
-            }
-
-            Toast.makeText(this, "Magic keys added successfully!", Toast.LENGTH_SHORT).show()
-        } catch (e: Exception) {
-            Toast.makeText(this, "Error processing magic keys: ${e.message}", Toast.LENGTH_LONG).show()
-        }
-    }
-
-    private fun validateHexInput(input: String): Boolean {
-        val hexPattern = Regex("^[0-9a-fA-F]{32}$")
-        return hexPattern.matches(input)
-    }
-
-    private fun hexStringToByteArray(hex: String): ByteArray {
-        val result = ByteArray(16)
-        for (i in 0 until 16) {
-            val hexByte = hex.substring(i * 2, i * 2 + 2)
-            result[i] = hexByte.toInt(16).toByte()
-        }
-        return result
-    }
 }
 
 @ExperimentalHazeMaterialsApi
 @SuppressLint("MissingPermission", "InlinedApi", "UnspecifiedRegisterReceiverFlag")
-@OptIn(ExperimentalPermissionsApi::class)
+@OptIn(ExperimentalPermissionsApi::class, ExperimentalMaterial3Api::class)
 @Composable
 fun Main() {
-    val isConnected = remember { mutableStateOf(false) }
-    val isRemotelyConnected = remember { mutableStateOf(false) }
-    val hookAvailable = RadareOffsetFinder(LocalContext.current).isHookOffsetAvailable()
     val context = LocalContext.current
+    val sharedPreferences = context.getSharedPreferences("settings", MODE_PRIVATE)
+    if (!isSupported(sharedPreferences) && !XposedState.bluetoothScopeEnabled) {
+        val hazeState = rememberHazeState()
+        val backdrop = rememberLayerBackdrop()
+        val isDarkTheme = isSystemInDarkTheme()
+        val textColor = if (isDarkTheme) Color.White else Color.Black
+        val backgroundColor = if (isSystemInDarkTheme()) Color(0xFF1C1C1E) else Color(0xFFFFFFFF)
+
+        val scrollState = rememberScrollState()
+
+        Box(
+            modifier = Modifier
+                .fillMaxSize()
+                .hazeSource(hazeState)
+                .layerBackdrop(backdrop)
+                .background(if (isDarkTheme) Color.Black else Color(0xFFF2F2F7)),
+            contentAlignment = Alignment.Center
+        ) {
+            Column(
+                modifier = Modifier
+                    .padding(horizontal = 16.dp)
+                    .verticalScroll(scrollState),
+                verticalArrangement = Arrangement
+                    .spacedBy(16.dp)
+            ) {
+                Spacer(modifier = Modifier.height(48.dp))
+                Column(
+                    modifier = Modifier,
+                    verticalArrangement = Arrangement
+                        .spacedBy(16.dp)
+                ) {
+                    Spacer(modifier = Modifier.height(16.dp))
+                    Text(
+                        text = stringResource(R.string.not_supported),
+                        style = TextStyle(
+                            fontFamily = FontFamily(Font(R.font.sf_pro)),
+                            fontWeight = FontWeight.SemiBold,
+                            color = textColor,
+                            fontSize = 28.sp,
+                            textAlign = TextAlign.Center
+                        ),
+                        modifier = Modifier.fillMaxWidth()
+                    )
+
+                    Box(
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .background(backgroundColor, RoundedCornerShape(28.dp))
+                            .clip(RoundedCornerShape(28.dp))
+                    ) {
+                        Text(
+                            text = stringResource(R.string.check_the_repository_for_more_info),
+                            style = TextStyle(
+                                fontFamily = FontFamily(Font(R.font.sf_pro)),
+                                fontWeight = FontWeight.Medium,
+                                color = if (isDarkTheme) Color.White else Color.Black,
+                                fontSize = 16.sp
+                            ),
+                            modifier = Modifier
+                                .fillMaxWidth()
+                                .padding(horizontal = 12.dp, vertical = 16.dp)
+                        )
+                    }
+                    Spacer(modifier = Modifier.height(4.dp))
+                    Text(
+                        text = stringResource(R.string.enable_app_in_xposed_or_update_device),
+                        style = TextStyle(
+                            fontFamily = FontFamily(Font(R.font.sf_pro)),
+                            fontWeight = FontWeight.Light,
+                            color = if (isDarkTheme) Color.White else Color.Black,
+                            fontSize = 14.sp
+                        ),
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .padding(horizontal = 16.dp, vertical = 16.dp)
+                    )
+                    DeviceInfoCard()
+                    AppInfoCard()
+                }
+                Spacer(modifier = Modifier.height(48.dp))
+            }
+        }
+        return
+    }
+
+    val isConnected = remember { mutableStateOf(false) }
+
     var canDrawOverlays by remember { mutableStateOf(Settings.canDrawOverlays(context)) }
-    val overlaySkipped = remember { mutableStateOf(context.getSharedPreferences("settings", MODE_PRIVATE).getBoolean("overlay_permission_skipped", false)) }
+    val overlaySkipped = remember {
+        mutableStateOf(
+            context.getSharedPreferences("settings", MODE_PRIVATE)
+                .getBoolean("overlay_permission_skipped", false)
+        )
+    }
 
     val bluetoothPermissions = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
         listOf(
@@ -297,23 +337,58 @@ fun Main() {
     val permissionState = rememberMultiplePermissionsState(
         permissions = allPermissions
     )
+
     val airPodsService = remember { mutableStateOf<AirPodsService?>(null) }
 
+    val airPodsViewModel = remember(airPodsService.value) {
+        airPodsService.value?.let { service ->
+            AirPodsViewModel(
+                service = service,
+                sharedPreferences = context.getSharedPreferences("settings", MODE_PRIVATE),
+                controlRepo = ControlCommandRepository(service.aacpManager),
+                appContext = context.applicationContext
+            )
+        }
+    }
+
     LaunchedEffect(Unit) {
         canDrawOverlays = Settings.canDrawOverlays(context)
     }
 
     if (permissionState.allPermissionsGranted && (canDrawOverlays || overlaySkipped.value)) {
-        val context = LocalContext.current
 
         val navController = rememberNavController()
 
-        Box (
-            modifier = Modifier
-                .fillMaxSize()
-        ){
+        LaunchedEffect(Unit) {
+            if (BuildConfig.PLAY_BUILD) {
+                val now = System.currentTimeMillis()
+                val firstConn =
+                    sharedPreferences.getLong("first_connection_successful_time", 0L)
+
+                val alreadyPrompted =
+                    sharedPreferences.getBoolean("review_prompted", false)
+
+                val oneDay = 24 * 60 * 60 * 1000L
+
+                if (
+                    firstConn != 0L &&
+                    !alreadyPrompted &&
+                    (now - firstConn) > oneDay
+                ) {
+                    triggerReviewFlow(context as? Activity ?: return@LaunchedEffect)
+
+                    sharedPreferences.edit {
+                        putBoolean("review_prompted", true)
+                    }
+                }
+            }
+        }
+
+        Box(
+            modifier = Modifier.fillMaxSize()
+        ) {
             val backButtonBackdrop = rememberLayerBackdrop()
-            Box (
+            Box(
                 modifier = Modifier
                     .fillMaxSize()
                     .background(if (isSystemInDarkTheme()) Color.Black else Color(0xFFF2F2F7))
@@ -321,134 +396,137 @@ fun Main() {
             ) {
                 NavHost(
                     navController = navController,
-                    startDestination = if (hookAvailable) "settings" else "onboarding",
+                    startDestination = "settings",
                     enterTransition = {
                         slideInHorizontally(
-                            initialOffsetX = { it },
-                            animationSpec = tween(durationMillis = 300)
-                        ) // + fadeIn(animationSpec = tween(durationMillis = 300))
+                            initialOffsetX = { it }, animationSpec = tween(durationMillis = 300)
+                        )
                     },
                     exitTransition = {
                         slideOutHorizontally(
-                            targetOffsetX = { -it/4 },
-                            animationSpec = tween(durationMillis = 300)
-                        ) // + fadeOut(animationSpec = tween(durationMillis = 150))
+                            targetOffsetX = { -it / 4 }, animationSpec = tween(durationMillis = 300)
+                        )
                     },
                     popEnterTransition = {
                         slideInHorizontally(
-                            initialOffsetX = { -it/4 },
+                            initialOffsetX = { -it / 4 },
                             animationSpec = tween(durationMillis = 300)
-                        ) // + fadeIn(animationSpec = tween(durationMillis = 300))
+                        )
                     },
                     popExitTransition = {
                         slideOutHorizontally(
-                            targetOffsetX = { it },
-                            animationSpec = tween(durationMillis = 300)
-                        ) // + fadeOut(animationSpec = tween(durationMillis = 150))
-                    }
-                ) {
+                            targetOffsetX = { it }, animationSpec = tween(durationMillis = 300)
+                        )
+                    }) {
                     composable("settings") {
-                        if (airPodsService.value != null) {
-                            AirPodsSettingsScreen(
-                                dev = airPodsService.value?.device,
-                                service = airPodsService.value!!,
-                                navController = navController,
-                                isConnected = isConnected.value,
-                                isRemotelyConnected = isRemotelyConnected.value
-                            )
-                        }
+                        if (airPodsViewModel != null) AirPodsSettingsScreen(airPodsViewModel, navController)
                     }
                     composable("debug") {
                         DebugScreen(navController = navController)
                     }
                     composable("long_press/{bud}") { navBackStackEntry ->
-                        LongPress(
-                            navController = navController,
-                            name = navBackStackEntry.arguments?.getString("bud")!!
+                        if (airPodsViewModel != null) LongPress(
+                            viewModel = airPodsViewModel,
+                            name = navBackStackEntry.arguments?.getString("bud")!!,
+                            navController = navController
                         )
                     }
                     composable("rename") {
-                        RenameScreen(navController)
+                        if (airPodsViewModel != null) RenameScreen(airPodsViewModel)
                     }
                     composable("app_settings") {
-                        AppSettingsScreen(navController)
+                        val appSettingsViewModel: AppSettingsViewModel = viewModel()
+                        AppSettingsScreen(navController, appSettingsViewModel)
                     }
                     composable("troubleshooting") {
                         TroubleshootingScreen(navController)
                     }
                     composable("head_tracking") {
-                        HeadTrackingScreen()
-                    }
-                    composable("onboarding") {
-                        Onboarding(navController, context)
+                        if (airPodsViewModel != null) HeadTrackingScreen(airPodsViewModel, navController)
                     }
                     composable("accessibility") {
-                        AccessibilitySettingsScreen(navController)
+                        if (airPodsViewModel != null) AccessibilitySettingsScreen(airPodsViewModel, navController)
                     }
                     composable("transparency_customization") {
-                        TransparencySettingsScreen(navController)
+                        if (airPodsViewModel != null) TransparencySettingsScreen(airPodsViewModel)
                     }
                     composable("hearing_aid") {
-                        HearingAidScreen(navController)
+                        if (airPodsViewModel != null) HearingAidScreen(airPodsViewModel, navController)
                     }
                     composable("hearing_aid_adjustments") {
-                        HearingAidAdjustmentsScreen(navController)
+                        if (airPodsViewModel != null) HearingAidAdjustmentsScreen(airPodsViewModel)
                     }
                     composable("adaptive_strength") {
-                        AdaptiveStrengthScreen(navController)
+                        if (airPodsViewModel != null) AdaptiveStrengthScreen(airPodsViewModel, navController)
                     }
                     composable("camera_control") {
-                        CameraControlScreen(navController)
+                        if (airPodsViewModel != null) CameraControlScreen(airPodsViewModel)
                     }
                     composable("open_source_licenses") {
                         OpenSourceLicensesScreen(navController)
                     }
                     composable("update_hearing_test") {
-                        UpdateHearingTestScreen(navController)
+                        if (airPodsViewModel != null) UpdateHearingTestScreen()
                     }
                     composable("version_info") {
-                        VersionScreen(navController)
+                        if (airPodsViewModel != null) VersionScreen(airPodsViewModel)
                     }
                     composable("hearing_protection") {
-                        HearingProtectionScreen(navController)
+                        if (airPodsViewModel != null) HearingProtectionScreen(airPodsViewModel, navController)
+                    }
+                    composable("purchase_screen") {
+                        val purchaseViewModel: PurchaseViewModel = viewModel()
+                        PurchaseScreen(purchaseViewModel, navController)
                     }
                 }
             }
 
-            val showBackButton = remember{ mutableStateOf(false) }
+            val showBackButton = remember { mutableStateOf(false) }
 
             LaunchedEffect(navController) {
                 navController.addOnDestinationChangedListener { _, destination, _ ->
-                    showBackButton.value = destination.route != "settings" && destination.route != "onboarding"
-                    Log.d("MainActivity", "Navigated to ${destination.route}, showBackButton: ${showBackButton.value}")
+                    showBackButton.value =
+                        destination.route != "settings" // && destination.route != "onboarding"
                 }
             }
 
             AnimatedVisibility(
                 visible = showBackButton.value,
-                enter = fadeIn(animationSpec = tween()) + scaleIn(initialScale = 0f, animationSpec = tween()),
-                exit = fadeOut(animationSpec = tween()) + scaleOut(targetScale = 0.5f, animationSpec = tween(100)),
+                enter = fadeIn(animationSpec = tween()) + scaleIn(
+                    initialScale = 0f,
+                    animationSpec = tween()
+                ),
+                exit = fadeOut(animationSpec = tween()) + scaleOut(
+                    targetScale = 0.5f,
+                    animationSpec = tween(100)
+                ),
                 modifier = Modifier
                     .align(Alignment.TopStart)
                     .padding(
-                        start = 8.dp,
-                        top = (LocalWindowInfo.current.containerSize.width * 0.05f).dp
+                        start = 8.dp, top = (LocalWindowInfo.current.containerSize.width * 0.05f).dp
                     )
             ) {
                 StyledIconButton(
-                        onClick = { navController.popBackStack() },
-                        icon = "􀯶",
-                        darkMode = isSystemInDarkTheme(),
-                        backdrop = backButtonBackdrop
-                    )
+                    onClick = { navController.popBackStack() },
+                    icon = "􀯶",
+                    backdrop = backButtonBackdrop
+                )
             }
         }
 
+        context.startForegroundService(Intent(context, AirPodsService::class.java))
+
         serviceConnection = remember {
             object : ServiceConnection {
                 override fun onServiceConnected(name: ComponentName?, service: IBinder?) {
                     val binder = service as AirPodsService.LocalBinder
                     airPodsService.value = binder.getService()
+
+                    if (!sharedPreferences.contains("first_connection_successful_time")) {
+                        sharedPreferences.edit {
+                            putLong("first_connection_successful_time", System.currentTimeMillis())
+                        }
+                    }
                 }
 
                 override fun onServiceDisconnected(name: ComponentName?) {
@@ -457,17 +535,31 @@ fun Main() {
             }
         }
 
-        context.bindService(Intent(context, AirPodsService::class.java), serviceConnection, Context.BIND_AUTO_CREATE)
+        context.bindService(
+            Intent(context, AirPodsService::class.java),
+            serviceConnection,
+            Context.BIND_AUTO_CREATE
+        )
 
-        if (airPodsService.value?.isConnectedLocally == true) {
+        if (airPodsService.value?.isConnected() == true) {
             isConnected.value = true
         }
     } else {
         PermissionsScreen(
             permissionState = permissionState,
             canDrawOverlays = canDrawOverlays,
-            onOverlaySettingsReturn = { canDrawOverlays = Settings.canDrawOverlays(context) }
-        )
+            onOverlaySettingsReturn = { canDrawOverlays = Settings.canDrawOverlays(context) })
+    }
+}
+
+private fun triggerReviewFlow(activity: Activity) {
+    val manager = ReviewManagerFactory.create(activity)
+    val request = manager.requestReviewFlow()
+    request.addOnCompleteListener { task ->
+        if (task.isSuccessful) {
+            val reviewInfo = task.result
+            manager.launchReviewFlow(activity, reviewInfo)
+        }
     }
 }
 
@@ -490,13 +582,9 @@ fun PermissionsScreen(
 
     val infiniteTransition = rememberInfiniteTransition(label = "pulse")
     val pulseScale by infiniteTransition.animateFloat(
-        initialValue = 1f,
-        targetValue = 1.05f,
-        animationSpec = infiniteRepeatable(
-            animation = tween(1000),
-            repeatMode = RepeatMode.Reverse
-        ),
-        label = "pulse scale"
+        initialValue = 1f, targetValue = 1.05f, animationSpec = infiniteRepeatable(
+            animation = tween(1000), repeatMode = RepeatMode.Reverse
+        ), label = "pulse scale"
     )
 
     Column(
@@ -504,18 +592,15 @@ fun PermissionsScreen(
             .fillMaxSize()
             .background(if (isDarkTheme) Color.Black else Color(0xFFF2F2F7))
             .padding(16.dp)
-            .verticalScroll(scrollState),
-        horizontalAlignment = Alignment.CenterHorizontally
+            .verticalScroll(scrollState), horizontalAlignment = Alignment.CenterHorizontally
     ) {
         Box(
             modifier = Modifier
                 .fillMaxWidth()
-                .height(180.dp),
-            contentAlignment = Alignment.Center
+                .height(180.dp), contentAlignment = Alignment.Center
         ) {
             Text(
-                text = "\uDBC2\uDEB7",
-                style = TextStyle(
+                text = "\uDBC2\uDEB7", style = TextStyle(
                     fontSize = 48.sp,
                     fontWeight = FontWeight.Bold,
                     fontFamily = FontFamily(Font(R.font.sf_pro)),
@@ -551,29 +636,25 @@ fun PermissionsScreen(
         Spacer(modifier = Modifier.height(16.dp))
 
         Text(
-            text = "Permission Required",
-            style = TextStyle(
+            text = "Permission Required", style = TextStyle(
                 fontSize = 24.sp,
                 fontWeight = FontWeight.Bold,
                 fontFamily = FontFamily(Font(R.font.sf_pro)),
                 color = textColor,
                 textAlign = TextAlign.Center
-            ),
-            modifier = Modifier.fillMaxWidth()
+            ), modifier = Modifier.fillMaxWidth()
         )
 
         Spacer(modifier = Modifier.height(8.dp))
 
         Text(
-            text = stringResource(R.string.permissions_required),
-            style = TextStyle(
+            text = stringResource(R.string.permissions_required), style = TextStyle(
                 fontSize = 16.sp,
                 fontWeight = FontWeight.Normal,
                 fontFamily = FontFamily(Font(R.font.sf_pro)),
                 color = textColor.copy(alpha = 0.7f),
                 textAlign = TextAlign.Center
-            ),
-            modifier = Modifier.fillMaxWidth()
+            ), modifier = Modifier.fillMaxWidth()
         )
 
         Spacer(modifier = Modifier.height(32.dp))
@@ -746,8 +827,7 @@ fun PermissionCard(
                         if (isGranted) accentColor.copy(alpha = 0.15f) else Color.Gray.copy(
                             alpha = 0.15f
                         )
-                    ),
-                contentAlignment = Alignment.Center
+                    ), contentAlignment = Alignment.Center
             ) {
                 Icon(
                     imageVector = icon,
@@ -763,8 +843,7 @@ fun PermissionCard(
                     .padding(start = 16.dp)
             ) {
                 Text(
-                    text = title,
-                    style = TextStyle(
+                    text = title, style = TextStyle(
                         fontSize = 16.sp,
                         fontWeight = FontWeight.Medium,
                         fontFamily = FontFamily(Font(R.font.sf_pro)),
@@ -773,8 +852,7 @@ fun PermissionCard(
                 )
 
                 Text(
-                    text = description,
-                    style = TextStyle(
+                    text = description, style = TextStyle(
                         fontSize = 14.sp,
                         fontWeight = FontWeight.Normal,
                         fontFamily = FontFamily(Font(R.font.sf_pro)),
@@ -791,11 +869,8 @@ fun PermissionCard(
                 contentAlignment = Alignment.Center
             ) {
                 Text(
-                    text = if (isGranted) "✓" else "!",
-                    style = TextStyle(
-                        fontSize = 14.sp,
-                        fontWeight = FontWeight.Bold,
-                        color = Color.White
+                    text = if (isGranted) "✓" else "!", style = TextStyle(
+                        fontSize = 14.sp, fontWeight = FontWeight.Bold, color = Color.White
                     )
                 )
             }

android/app/src/main/java/me/kavishdevar/librepods/QuickSettingsDialogActivity.kt

@@ -85,15 +85,15 @@ import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import kotlinx.coroutines.launch
-import me.kavishdevar.librepods.composables.AdaptiveRainbowBrush
-import me.kavishdevar.librepods.composables.ControlCenterNoiseControlSegmentedButton
-import me.kavishdevar.librepods.composables.IconAreaSize
-import me.kavishdevar.librepods.composables.VerticalVolumeSlider
-import me.kavishdevar.librepods.constants.AirPodsNotifications
-import me.kavishdevar.librepods.constants.NoiseControlMode
+import me.kavishdevar.librepods.presentation.components.AdaptiveRainbowBrush
+import me.kavishdevar.librepods.presentation.components.ControlCenterNoiseControlSegmentedButton
+import me.kavishdevar.librepods.presentation.components.IconAreaSize
+import me.kavishdevar.librepods.presentation.components.VerticalVolumeSlider
+import me.kavishdevar.librepods.data.AirPodsNotifications
+import me.kavishdevar.librepods.data.NoiseControlMode
 import me.kavishdevar.librepods.services.AirPodsService
-import me.kavishdevar.librepods.ui.theme.LibrePodsTheme
-import me.kavishdevar.librepods.utils.AACPManager
+import me.kavishdevar.librepods.presentation.theme.LibrePodsTheme
+import me.kavishdevar.librepods.bluetooth.AACPManager
 import kotlin.io.encoding.ExperimentalEncodingApi
 import kotlin.math.abs
 

android/app/src/main/java/me/kavishdevar/librepods/billing/BillingManager.kt

@@ -0,0 +1,5 @@
+package me.kavishdevar.librepods.billing
+
+object BillingManager {
+    lateinit var provider: BillingProvider
+}

android/app/src/main/java/me/kavishdevar/librepods/billing/BillingProvider.kt

@@ -0,0 +1,30 @@
+/*
+    LibrePods - AirPods liberated from Apple’s ecosystem
+    Copyright (C) 2025 LibrePods contributors
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+package me.kavishdevar.librepods.billing
+
+import android.app.Activity
+import kotlinx.coroutines.flow.StateFlow
+
+interface BillingProvider {
+    val isPremium: StateFlow<Boolean>
+    val price: StateFlow<String>
+    fun purchase(activity: Activity)
+    fun queryPurchases()
+    fun restorePurchases()
+}

android/app/src/main/java/me/kavishdevar/librepods/billing/BillingProviderFactory.kt

@@ -0,0 +1,33 @@
+/*
+    LibrePods - AirPods liberated from Apple’s ecosystem
+    Copyright (C) 2025 LibrePods contributors
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+package me.kavishdevar.librepods.billing
+
+import android.content.Context
+import me.kavishdevar.librepods.BuildConfig
+
+object BillingProviderFactory {
+
+    fun create(context: Context): BillingProvider {
+        return if (BuildConfig.PLAY_BUILD) {
+            PlayBillingProvider(context)
+        } else {
+            FOSSBillingProvider(context)
+        }
+    }
+}

android/app/src/main/java/me/kavishdevar/librepods/billing/FOSSBillingProvider.kt

@@ -0,0 +1,77 @@
+/*
+    LibrePods - AirPods liberated from Apple’s ecosystem
+    Copyright (C) 2025 LibrePods contributors
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+package me.kavishdevar.librepods.billing
+
+import android.app.Activity
+import android.content.Context
+import android.content.Intent
+import androidx.core.content.edit
+import androidx.core.net.toUri
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.SupervisorJob
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.launch
+import me.kavishdevar.librepods.R
+
+class FOSSBillingProvider(context: Context): BillingProvider {
+    private val _isPremium = MutableStateFlow(false)
+    override val isPremium: StateFlow<Boolean> = _isPremium
+
+    private val _price = MutableStateFlow(context.getString(R.string.name_your_own_price))
+    override val price: StateFlow<String> = _price
+
+    private val sharedPreferences = context.getSharedPreferences("settings", Context.MODE_PRIVATE)
+
+    private val scope = CoroutineScope(SupervisorJob() + Dispatchers.IO)
+    private var purchaseJob: Job? = null
+
+    init {
+        queryPurchases()
+    }
+
+    override fun purchase(activity: Activity) {
+        activity.startActivity(
+            Intent(Intent.ACTION_VIEW, "https://github.com/sponsors/kavishdevar".toUri())
+        )
+
+        purchaseJob?.cancel()
+
+        purchaseJob = scope.launch {
+            delay(5_000)
+            _isPremium.value = true
+            sharedPreferences.edit { putBoolean("foss_upgraded", true) }
+        }
+    }
+
+    override fun queryPurchases() {
+        val stored = sharedPreferences.getBoolean("foss_upgraded", false)
+        if (stored != _isPremium.value) {
+            _isPremium.value = stored
+        }
+    }
+
+    override fun restorePurchases() {
+        _isPremium.value = true
+        sharedPreferences.edit { putBoolean("foss_upgraded", true) }
+    }
+}

android/app/src/main/java/me/kavishdevar/librepods/billing/PlayBillingProvider.kt

@@ -0,0 +1,206 @@
+/*
+    LibrePods - AirPods liberated from Apple’s ecosystem
+    Copyright (C) 2025 LibrePods contributors
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+package me.kavishdevar.librepods.billing
+
+import android.app.Activity
+import android.content.Context
+import android.util.Log
+import com.android.billingclient.api.AcknowledgePurchaseParams
+import com.android.billingclient.api.BillingClient
+import com.android.billingclient.api.BillingClientStateListener
+import com.android.billingclient.api.BillingFlowParams
+import com.android.billingclient.api.BillingResult
+import com.android.billingclient.api.PendingPurchasesParams
+import com.android.billingclient.api.ProductDetails
+import com.android.billingclient.api.Purchase
+import com.android.billingclient.api.PurchasesUpdatedListener
+import com.android.billingclient.api.QueryProductDetailsParams
+import com.android.billingclient.api.QueryPurchasesParams
+import com.android.billingclient.api.acknowledgePurchase
+import com.android.billingclient.api.queryProductDetails
+import com.android.billingclient.api.queryPurchasesAsync
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.SupervisorJob
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.launch
+
+const val TAG = "PlayBillingProvider"
+
+private const val PREMIUM_PRODUCT_ID = "librepods.advanced_features.v2"
+
+class PlayBillingProvider(
+    context: Context
+) : BillingProvider, PurchasesUpdatedListener {
+
+    private val scope = CoroutineScope(SupervisorJob() + Dispatchers.IO)
+
+    private val _isPremium = MutableStateFlow(false)
+    override val isPremium: StateFlow<Boolean> = _isPremium
+
+    private val _price = MutableStateFlow("unknown")
+    override val price: StateFlow<String> = _price
+
+
+    private var productDetails: ProductDetails? = null
+
+    private val billingClient = BillingClient.newBuilder(context)
+        .setListener(this)
+        .enablePendingPurchases(
+            PendingPurchasesParams.newBuilder().enableOneTimeProducts().build()
+        )
+        .build()
+
+    init {
+        connect()
+    }
+
+    private fun connect() {
+        billingClient.startConnection(object : BillingClientStateListener {
+            override fun onBillingSetupFinished(result: BillingResult) {
+                if (result.responseCode == BillingClient.BillingResponseCode.OK) {
+                    scope.launch {
+                        queryProductDetails()
+                        queryExistingPurchases()
+                    }
+                } else {
+                    Log.w(TAG, "Billing setup failed: ${result.debugMessage}")
+                }
+            }
+
+            override fun onBillingServiceDisconnected() {
+                connect()
+            }
+        })
+    }
+
+    private suspend fun queryProductDetails() {
+        val params = QueryProductDetailsParams.newBuilder()
+            .setProductList(
+                listOf(
+                    QueryProductDetailsParams.Product.newBuilder()
+                        .setProductId(PREMIUM_PRODUCT_ID)
+                        .setProductType(BillingClient.ProductType.INAPP)
+                        .build()
+                )
+            ).build()
+
+        val result = billingClient.queryProductDetails(params)
+        if (result.billingResult.responseCode == BillingClient.BillingResponseCode.OK) {
+            productDetails = result.productDetailsList?.firstOrNull()
+            Log.d(TAG, "Product loaded: ${productDetails?.name}")
+            val priceString = productDetails
+                ?.oneTimePurchaseOfferDetails
+                ?.formattedPrice
+
+            if (priceString != null) {
+                _price.value = priceString
+            }
+        } else {
+            Log.w(TAG, "queryProductDetails failed: ${result.billingResult.debugMessage}")
+        }
+    }
+
+    private suspend fun queryExistingPurchases() {
+        val result = billingClient.queryPurchasesAsync(
+            QueryPurchasesParams.newBuilder()
+                .setProductType(BillingClient.ProductType.INAPP)
+                .build()
+        )
+        processPurchases(result.purchasesList)
+    }
+
+    override fun purchase(activity: Activity) {
+        val details = productDetails ?: run {
+            Log.e(TAG, "Product details not loaded yet")
+            return
+        }
+
+        val billingFlowParams = BillingFlowParams.newBuilder()
+            .setProductDetailsParamsList(
+                listOf(
+                    BillingFlowParams.ProductDetailsParams.newBuilder()
+                        .setProductDetails(details)
+                        .build()
+                )
+            ).build()
+
+        val result = billingClient.launchBillingFlow(activity, billingFlowParams)
+        if (result.responseCode != BillingClient.BillingResponseCode.OK) {
+            Log.e(TAG, "launchBillingFlow failed: ${result.debugMessage}")
+        }
+    }
+
+    override fun onPurchasesUpdated(result: BillingResult, purchases: List<Purchase>?) {
+        when (result.responseCode) {
+            BillingClient.BillingResponseCode.OK -> purchases?.let { processPurchases(it) }
+            BillingClient.BillingResponseCode.USER_CANCELED -> Log.d(TAG, "User cancelled")
+            else -> Log.w(TAG, "Purchase error ${result.responseCode}: ${result.debugMessage}")
+        }
+    }
+
+    private fun processPurchases(purchases: List<Purchase>) {
+        val hasPremium = purchases.any {
+            it.products.contains(PREMIUM_PRODUCT_ID) &&
+                it.purchaseState == Purchase.PurchaseState.PURCHASED
+        }
+
+//        val purchase = purchases.find {
+//            it.products.contains(PREMIUM_PRODUCT_ID) && it.purchaseState == Purchase.PurchaseState.PURCHASED
+//        }
+//
+//        if (purchase != null) {
+//            val consumeParams = ConsumeParams.newBuilder()
+//                .setPurchaseToken(purchase.purchaseToken)
+//                .build()
+//            scope.launch {
+//                billingClient.consumeAsync(consumeParams) { _, _ ->}
+//            }
+//        }
+
+        _isPremium.value = hasPremium
+
+        scope.launch {
+            purchases
+                .filter { it.purchaseState == Purchase.PurchaseState.PURCHASED && !it.isAcknowledged }
+                .forEach { acknowledge(it) }
+        }
+    }
+
+    private suspend fun acknowledge(purchase: Purchase) {
+        val params = AcknowledgePurchaseParams.newBuilder()
+            .setPurchaseToken(purchase.purchaseToken)
+            .build()
+        val result = billingClient.acknowledgePurchase(params)
+        if (result.responseCode != BillingClient.BillingResponseCode.OK) {
+            Log.e(TAG, "Acknowledgement failed: ${result.debugMessage}")
+        }
+    }
+
+    override fun queryPurchases() {
+        scope.launch {
+            queryExistingPurchases()
+        }
+    }
+
+    override fun restorePurchases() {
+        queryPurchases()
+    }
+}

android/app/src/main/java/me/kavishdevar/librepods/bluetooth/AACPManager.kt

@@ -18,7 +18,7 @@
 
 @file:OptIn(ExperimentalEncodingApi::class)
 
-package me.kavishdevar.librepods.utils
+package me.kavishdevar.librepods.bluetooth
 
 import android.util.Log
 import java.nio.ByteBuffer
@@ -55,13 +55,13 @@ class AACPManager {
             const val TIPI_3: Byte = 0x0C // Don't know this one
             const val SMART_ROUTING_RESP: Byte = 0x11
             const val SEND_CONNECTED_MAC: Byte = 0x14
+            const val AUDIO_SOURCE_2: Byte = 0x0C // seems redundant?
         }
 
         private val HEADER_BYTES = byteArrayOf(0x04, 0x00, 0x04, 0x00)
 
         data class ControlCommandStatus(
-            val identifier: ControlCommandIdentifiers,
-            val value: ByteArray
+            val identifier: ControlCommandIdentifiers, val value: ByteArray
         ) {
             override fun equals(other: Any?): Boolean {
                 if (this === other) return true
@@ -84,43 +84,33 @@ class AACPManager {
 
         //        @Suppress("unused")
         enum class ControlCommandIdentifiers(val value: Byte) {
-            MIC_MODE(0x01),
-            BUTTON_SEND_MODE(0x05),
-            VOICE_TRIGGER(0x12),
-            SINGLE_CLICK_MODE(0x14),
-            DOUBLE_CLICK_MODE(0x15),
-            CLICK_HOLD_MODE(0x16),
-            DOUBLE_CLICK_INTERVAL(0x17),
-            CLICK_HOLD_INTERVAL(0x18),
-            LISTENING_MODE_CONFIGS(0x1A),
-            ONE_BUD_ANC_MODE(0x1B),
-            CROWN_ROTATION_DIRECTION(0x1C),
-            LISTENING_MODE(0x0D),
-            AUTO_ANSWER_MODE(0x1E),
-            CHIME_VOLUME(0x1F),
-            VOLUME_SWIPE_INTERVAL(0x23),
-            CALL_MANAGEMENT_CONFIG(0x24),
-            VOLUME_SWIPE_MODE(0x25),
-            ADAPTIVE_VOLUME_CONFIG(0x26),
-            SOFTWARE_MUTE_CONFIG(0x27),
-            CONVERSATION_DETECT_CONFIG(0x28),
-            SSL(0x29),
-            HEARING_AID(0x2C),
-            AUTO_ANC_STRENGTH(0x2E),
-            HPS_GAIN_SWIPE(0x2F),
-            HRM_STATE(0x30),
-            IN_CASE_TONE_CONFIG(0x31),
-            SIRI_MULTITONE_CONFIG(0x32),
-            HEARING_ASSIST_CONFIG(0x33),
-            ALLOW_OFF_OPTION(0x34),
-            STEM_CONFIG(0x39),
-            SLEEP_DETECTION_CONFIG(0x35),
-            ALLOW_AUTO_CONNECT(0x36), // not sure what this does, AUTOMATIC_CONNECTION is the only one used, but this is newer... so ¯\_(ツ)_/¯
-            EAR_DETECTION_CONFIG(0x0A),
-            AUTOMATIC_CONNECTION_CONFIG(0x20),
-            OWNS_CONNECTION(0x06),
-            PPE_TOGGLE_CONFIG(0x37),
-            PPE_CAP_LEVEL_CONFIG(0x38);
+            MIC_MODE(0x01), BUTTON_SEND_MODE(0x05), VOICE_TRIGGER(0x12), SINGLE_CLICK_MODE(0x14), DOUBLE_CLICK_MODE(
+                0x15
+            ),
+            CLICK_HOLD_MODE(0x16), DOUBLE_CLICK_INTERVAL(0x17), CLICK_HOLD_INTERVAL(0x18), LISTENING_MODE_CONFIGS(
+                0x1A
+            ),
+            ONE_BUD_ANC_MODE(0x1B), CROWN_ROTATION_DIRECTION(0x1C), LISTENING_MODE(0x0D), AUTO_ANSWER_MODE(
+                0x1E
+            ),
+            CHIME_VOLUME(0x1F), VOLUME_SWIPE_INTERVAL(0x23), CALL_MANAGEMENT_CONFIG(0x24), VOLUME_SWIPE_MODE(
+                0x25
+            ),
+            ADAPTIVE_VOLUME_CONFIG(0x26), SOFTWARE_MUTE_CONFIG(0x27), CONVERSATION_DETECT_CONFIG(
+                0x28
+            ),
+            SSL(0x29), HEARING_AID(0x2C), AUTO_ANC_STRENGTH(0x2E), HPS_GAIN_SWIPE(0x2F), HRM_STATE(
+                0x30
+            ),
+            IN_CASE_TONE_CONFIG(0x31), SIRI_MULTITONE_CONFIG(0x32), HEARING_ASSIST_CONFIG(0x33), ALLOW_OFF_OPTION(
+                0x34
+            ),
+            STEM_CONFIG(0x39), SLEEP_DETECTION_CONFIG(0x35), ALLOW_AUTO_CONNECT(0x36), // not sure what this does, AUTOMATIC_CONNECTION is the only one used, but this is newer... so ¯\_(ツ)_/¯
+            EAR_DETECTION_CONFIG(0x0A), AUTOMATIC_CONNECTION_CONFIG(0x20), OWNS_CONNECTION(0x06), PPE_TOGGLE_CONFIG(
+                0x37
+            ),
+            PPE_CAP_LEVEL_CONFIG(0x38),
+            DYNAMIC_END_OF_CHARGE(0x3B);
 
             companion object {
                 fun fromByte(byte: Byte): ControlCommandIdentifiers? =
@@ -129,59 +119,44 @@ class AACPManager {
         }
 
         enum class ProximityKeyType(val value: Byte) {
-            IRK(0x01),
-            ENC_KEY(0x04);
+            IRK(0x01), ENC_KEY(0x04);
 
             companion object {
-                fun fromByte(byte: Byte): ProximityKeyType =
-                    ProximityKeyType.entries.find { it.value == byte }
-                        ?: throw IllegalArgumentException("Unknown ProximityKeyType: $byte")
+                fun fromByte(byte: Byte): ProximityKeyType = entries.find { it.value == byte }
+                    ?: throw IllegalArgumentException("Unknown ProximityKeyType: $byte")
             }
         }
 
         enum class StemPressType(val value: Byte) {
-            SINGLE_PRESS(0x05),
-            DOUBLE_PRESS(0x06),
-            TRIPLE_PRESS(0x07),
-            LONG_PRESS(0x08);
+            SINGLE_PRESS(0x05), DOUBLE_PRESS(0x06), TRIPLE_PRESS(0x07), LONG_PRESS(0x08);
 
             companion object {
-                fun fromByte(byte: Byte): StemPressType? =
-                    entries.find { it.value == byte }
+                fun fromByte(byte: Byte): StemPressType? = entries.find { it.value == byte }
             }
         }
 
         enum class StemPressBudType(val value: Byte) {
-            LEFT(0x01),
-            RIGHT(0x02);
+            LEFT(0x01), RIGHT(0x02);
 
             companion object {
-                fun fromByte(byte: Byte): StemPressBudType? =
-                    entries.find { it.value == byte }
+                fun fromByte(byte: Byte): StemPressBudType? = entries.find { it.value == byte }
             }
         }
 
         enum class AudioSourceType(val value: Byte) {
-            NONE(0x00),
-            CALL(0x01),
-            MEDIA(0x02);
+            NONE(0x00), CALL(0x01), MEDIA(0x02);
 
             companion object {
-                fun fromByte(byte: Byte): AudioSourceType? =
-                    entries.find { it.value == byte }
+                fun fromByte(byte: Byte): AudioSourceType? = entries.find { it.value == byte }
             }
         }
 
         data class AudioSource(
-            val mac: String,
-            val type: AudioSourceType
+            val mac: String, val type: AudioSourceType
         )
 
         data class ConnectedDevice(
-            val mac: String,
-            val info1: Byte,
-            val info2: Byte,
-            var type: String?
+            val mac: String, val info1: Byte, val info2: Byte, var type: String?
         )
 
         data class AirPodsInformation(
@@ -216,7 +191,7 @@ class AACPManager {
     var audioSource: AudioSource? = null
         private set
 
-    var eqData = FloatArray(8) { 0.0f }
+    var eqData = FloatArray(8)
         private set
 
     var eqOnPhone: Boolean = false
@@ -230,14 +205,10 @@ class AACPManager {
     }
 
     private fun setControlCommandStatusValue(
-        identifier: ControlCommandIdentifiers,
-        value: ByteArray
+        identifier: ControlCommandIdentifiers, value: ByteArray
     ) {
         val existingStatus = getControlCommandStatus(identifier)
-        if (existingStatus == value) {
-            controlCommandStatusList.remove(existingStatus)
-        }
-        if (existingStatus != null) {
+        if (existingStatus?.value.contentEquals(value)) {
             controlCommandStatusList.remove(existingStatus)
         }
         controlCommandListeners[identifier]?.forEach { listener ->
@@ -265,6 +236,7 @@ class AACPManager {
         fun onConnectedDevicesReceived(connectedDevices: List<ConnectedDevice>)
         fun onOwnershipToFalseRequest(sender: String, reasonReverseTapped: Boolean)
         fun onShowNearbyUI(sender: String)
+        fun onEQPacketReceived(eqData: FloatArray)
     }
 
     fun parseStemPressResponse(data: ByteArray): Pair<StemPressType, StemPressBudType> {
@@ -287,15 +259,13 @@ class AACPManager {
     }
 
     fun registerControlCommandListener(
-        identifier: ControlCommandIdentifiers,
-        callback: ControlCommandListener
+        identifier: ControlCommandIdentifiers, callback: ControlCommandListener
     ) {
         controlCommandListeners.getOrPut(identifier) { mutableListOf() }.add(callback)
     }
 
     fun unregisterControlCommandListener(
-        identifier: ControlCommandIdentifiers,
-        callback: ControlCommandListener
+        identifier: ControlCommandIdentifiers, callback: ControlCommandListener
     ) {
         controlCommandListeners[identifier]?.remove(callback)
     }
@@ -330,8 +300,7 @@ class AACPManager {
     fun sendControlCommand(identifier: Byte, value: ByteArray): Boolean {
         val controlPacket = createControlCommandPacket(identifier, value)
         setControlCommandStatusValue(
-            ControlCommandIdentifiers.fromByte(identifier) ?: return false,
-            value
+            ControlCommandIdentifiers.fromByte(identifier) ?: return false, value
         )
         return sendDataPacket(controlPacket)
     }
@@ -340,16 +309,14 @@ class AACPManager {
     fun sendControlCommand(identifier: Byte, value: Byte): Boolean {
         val controlPacket = createControlCommandPacket(identifier, byteArrayOf(value))
         setControlCommandStatusValue(
-            ControlCommandIdentifiers.fromByte(identifier) ?: return false,
-            byteArrayOf(value)
+            ControlCommandIdentifiers.fromByte(identifier) ?: return false, byteArrayOf(value)
         )
         return sendDataPacket(controlPacket)
     }
 
     fun sendControlCommand(identifier: Byte, value: Boolean): Boolean {
         val controlPacket = createControlCommandPacket(
-            identifier,
-            if (value) byteArrayOf(0x01) else byteArrayOf(0x02)
+            identifier, if (value) byteArrayOf(0x01) else byteArrayOf(0x02)
         )
         setControlCommandStatusValue(
             ControlCommandIdentifiers.fromByte(identifier) ?: return false,
@@ -369,8 +336,7 @@ class AACPManager {
 
     fun parseProximityKeysResponse(data: ByteArray): Map<ProximityKeyType, ByteArray> {
         Log.d(
-            TAG,
-            "Parsing Proximity Keys Response: ${data.joinToString(" ") { "%02X".format(it) }}"
+            TAG, "Parsing Proximity Keys Response: ${data.joinToString(" ") { "%02X".format(it) }}"
         )
         if (data.size < 4) {
             throw IllegalArgumentException("Data array too short to parse Proximity Keys Response")
@@ -395,14 +361,18 @@ class AACPManager {
             }
             val key = ByteArray(keyLength)
             System.arraycopy(data, offset, key, 0, keyLength)
-            keys[ProximityKeyType.fromByte(keyType)] = key
+            try {
+                keys[ProximityKeyType.fromByte(keyType)] = key
+            } catch (e: Exception) {
+                Log.e(
+                    TAG, "incorrect key type received: $keyType, ${key.toHexString()}"
+                )
+            }
             offset += keyLength
             Log.d(
-                TAG,
-                "Parsed Proximity Key: Type: ${keyType}, Length: $keyLength, Key: ${
-                    key.joinToString(" ") { "%02X".format(it) }
-                }"
-            )
+                TAG, "Parsed Proximity Key: Type: ${keyType}, Length: $keyLength, Key: ${
+                key.joinToString(" ") { "%02X".format(it) }
+            }")
         }
         return keys
     }
@@ -422,32 +392,33 @@ class AACPManager {
     fun receivePacket(packet: ByteArray) {
         if (!packet.toHexString().startsWith("04000400")) {
             Log.w(
-                TAG,
-                "Received packet does not start with expected header: ${
-                    packet.joinToString(" ") {
-                        "%02X".format(it)
-                    }
-                }"
-            )
+                TAG, "Received packet does not start with expected header: ${
+                packet.joinToString(" ") {
+                    "%02X".format(it)
+                }
+            }")
             return
         }
         if (packet.size < 6) {
             Log.w(
-                TAG,
-                "Received packet too short: ${packet.joinToString(" ") { "%02X".format(it) }}"
+                TAG, "Received packet too short: ${packet.joinToString(" ") { "%02X".format(it) }}"
             )
             return
         }
 
-        val opcode = packet[4]
-
-        when (opcode) {
+        when (val opcode = packet[4]) {
             Opcodes.BATTERY_INFO -> {
                 callback?.onBatteryInfoReceived(packet)
             }
 
             Opcodes.CONTROL_COMMAND -> {
-                val controlCommand = ControlCommand.fromByteArray(packet)
+                val controlCommand = try {
+                    ControlCommand.fromByteArray(packet)
+                } catch (e: Exception) {
+                    Log.w(TAG, "Failed to parse control command: ${e.message}")
+                    callback?.onUnknownPacketReceived(packet)
+                    return
+                }
                 setControlCommandStatusValue(
                     ControlCommandIdentifiers.fromByte(controlCommand.identifier) ?: return,
                     controlCommand.value
@@ -456,10 +427,9 @@ class AACPManager {
                     TAG,
                     "Control command received: ${controlCommand.identifier.toHexString()} - ${
                         controlCommand.value.joinToString(" ") { "%02X".format(it) }
-                    }"
-                )
-                Log.d(
-                    TAG, "Control command list is now: ${
+                    }")
+
+                val controlCommandListText = try {
                     controlCommandStatusList.joinToString(", ") { it ->
                         "${it.identifier.name} (${it.identifier.value.toHexString()}) - ${
                             it.value.joinToString(
@@ -467,12 +437,19 @@ class AACPManager {
                             ) { "%02X".format(it) }
                         }"
                     }
-                }")
+                } catch (e: Exception) {
+                    e.message
+                }
+
+                Log.d(
+                    TAG, "Control command list is now: $controlCommandListText"
+                )
 
                 val controlCommandIdentifier =
                     ControlCommandIdentifiers.fromByte(controlCommand.identifier)
                 if (controlCommandIdentifier != null) {
                     controlCommandListeners[controlCommandIdentifier]?.forEach { listener ->
+                        Log.d(TAG, "calling listener for ${controlCommandIdentifier.name}")
                         listener.onControlCommandReceived(controlCommand)
                     }
                 } else {
@@ -500,13 +477,11 @@ class AACPManager {
             Opcodes.HEADTRACKING -> {
                 if (packet.size < 70) {
                     Log.w(
-                        TAG,
-                        "Received HEADTRACKING packet too short: ${
-                            packet.joinToString(" ") {
-                                "%02X".format(it)
-                            }
-                        }"
-                    )
+                        TAG, "Received HEADTRACKING packet too short: ${
+                        packet.joinToString(" ") {
+                            "%02X".format(it)
+                        }
+                    }")
                     return
                 }
                 callback?.onHeadTrackingReceived(packet)
@@ -538,7 +513,8 @@ class AACPManager {
 
             Opcodes.SMART_ROUTING_RESP -> {
                 val packetString = packet.decodeToString()
-                val sender = packet.sliceArray(6..11).reversedArray().joinToString(":") { "%02X".format(it) }
+                val sender =
+                    packet.sliceArray(6..11).reversedArray().joinToString(":") { "%02X".format(it) }
 
                 // if (connectedDevices.find { it.mac == sender }?.type == null && packetString.contains("btName")) {
                 //     val nameStartIndex = packetString.indexOf("btName") + 8
@@ -558,9 +534,15 @@ class AACPManager {
                 } else if ("Android" in packetString) {
                     connectedDevices.find { it.mac == sender }?.type = "Android"
                 }
-                Log.d(TAG, "Smart Routing Response from $sender: $packetString, type: ${connectedDevices.find { it.mac == sender }?.type}")
+                Log.d(
+                    TAG,
+                    "Smart Routing Response from $sender: $packetString, type: ${connectedDevices.find { it.mac == sender }?.type}"
+                )
                 if (packetString.contains("SetOwnershipToFalse")) {
-                    callback?.onOwnershipToFalseRequest(sender, packetString.contains("ReverseBannerTapped"))
+                    callback?.onOwnershipToFalseRequest(
+                        sender,
+                        packetString.contains("ReverseBannerTapped")
+                    )
                 }
                 if (packetString.contains("ShowNearbyUI")) {
                     callback?.onShowNearbyUI(sender)
@@ -585,25 +567,33 @@ class AACPManager {
 
                 eqOnMedia = (packet[10] == 0x01.toByte())
                 eqOnPhone = (packet[11] == 0x01.toByte())
-                // there are 4 eqs. i am not sure what those are for, maybe all 4 listening modes, or maybe phone+media left+right, but then there shouldn't be another flag for phone/media enabled. just directly the EQ... weird.
+                // there are 4 eqs. i am not sure what those are for, maybe all 4 listening modes, or maybe phone+media left+right, but then there shouldn't be another flag for phone/media visible. just directly the EQ... weird.
                 // the EQs are little endian floats
-                val eq1 = ByteBuffer.wrap(packet, 12, 32).order(ByteOrder.LITTLE_ENDIAN).asFloatBuffer()
-                val eq2 = ByteBuffer.wrap(packet, 44, 32).order(ByteOrder.LITTLE_ENDIAN).asFloatBuffer()
-                val eq3 = ByteBuffer.wrap(packet, 76, 32).order(ByteOrder.LITTLE_ENDIAN).asFloatBuffer()
-                val eq4 = ByteBuffer.wrap(packet, 108, 32).order(ByteOrder.LITTLE_ENDIAN).asFloatBuffer()
+                val eq1 =
+                    ByteBuffer.wrap(packet, 12, 32).order(ByteOrder.LITTLE_ENDIAN).asFloatBuffer()
+                ByteBuffer.wrap(packet, 44, 32).order(ByteOrder.LITTLE_ENDIAN).asFloatBuffer()
+                ByteBuffer.wrap(packet, 76, 32).order(ByteOrder.LITTLE_ENDIAN).asFloatBuffer()
+                ByteBuffer.wrap(packet, 108, 32).order(ByteOrder.LITTLE_ENDIAN).asFloatBuffer()
 
                 // for now, taking just the first EQ
                 eqData = FloatArray(8) { i -> eq1.get(i) }
-                Log.d(TAG, "EQ Data set to: ${eqData.toList()}, eqOnPhone: $eqOnPhone, eqOnMedia: $eqOnMedia")
+
+                Log.d(
+                    TAG,
+                    "EQ Data set to: ${eqData.toList()}, eqOnPhone: $eqOnPhone, eqOnMedia: $eqOnMedia"
+                )
+
+                callback?.onEQPacketReceived(eqData)
             }
 
             Opcodes.INFORMATION -> {
-                Log.e(TAG, "Parsing Information Packet")
+                Log.d(TAG, "Parsing Information Packet")
                 val information = parseInformationPacket(packet)
                 callback?.onDeviceInformationReceived(information)
             }
+
             else -> {
-                Log.d(TAG, "Unknown opcode received: ${opcode.toHexString()}")
+                Log.d(TAG, "Unhandled opcode received: ${opcode.toHexString()}")
                 callback?.onUnknownPacketReceived(packet)
             }
         }
@@ -633,10 +623,22 @@ class AACPManager {
 
     fun createHandshakePacket(): ByteArray {
         return byteArrayOf(
-            0x00, 0x00, 0x04, 0x00,
-            0x01, 0x00, 0x02, 0x00,
-            0x00, 0x00, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0x00
+            0x00,
+            0x00,
+            0x04,
+            0x00,
+            0x01,
+            0x00,
+            0x02,
+            0x00,
+            0x00,
+            0x00,
+            0x00,
+            0x00,
+            0x00,
+            0x00,
+            0x00,
+            0x00
         )
     }
 
@@ -782,17 +784,31 @@ class AACPManager {
     }
 
     fun sendMediaInformationNewDevice(selfMacAddress: String, targetMacAddress: String): Boolean {
-        if (selfMacAddress.length != 17 || !selfMacAddress.matches(Regex("([0-9A-Fa-f]{2}:){5}[0-9A-Fa-f]{2}")) || targetMacAddress.length != 17 || !targetMacAddress.matches(Regex("([0-9A-Fa-f]{2}:){5}[0-9A-Fa-f]{2}"))) {
+        if (selfMacAddress.length != 17 || !selfMacAddress.matches(Regex("([0-9A-Fa-f]{2}:){5}[0-9A-Fa-f]{2}")) || targetMacAddress.length != 17 || !targetMacAddress.matches(
+                Regex("([0-9A-Fa-f]{2}:){5}[0-9A-Fa-f]{2}")
+            )
+        ) {
             // throw IllegalArgumentException("MAC address must be 6 bytes")
-            Log.w(TAG, "Invalid MAC address format, got: selfMacAddress=$selfMacAddress, targetMacAddress=$targetMacAddress")
+            Log.w(
+                TAG,
+                "Invalid MAC address format, got: selfMacAddress=$selfMacAddress, targetMacAddress=$targetMacAddress"
+            )
             return false
         }
         Log.d(TAG, "SELFMAC: ${selfMacAddress}, TARGETMAC: $targetMacAddress")
         Log.d(TAG, "Sending Media Information packet to $targetMacAddress")
-        return sendDataPacket(createMediaInformationNewDevicePacket(selfMacAddress, targetMacAddress))
+        return sendDataPacket(
+            createMediaInformationNewDevicePacket(
+                selfMacAddress,
+                targetMacAddress
+            )
+        )
     }
 
-    fun createMediaInformationNewDevicePacket(selfMacAddress: String, targetMacAddress: String): ByteArray {
+    fun createMediaInformationNewDevicePacket(
+        selfMacAddress: String,
+        targetMacAddress: String
+    ): ByteArray {
         val opcode = byteArrayOf(Opcodes.SMART_ROUTING, 0x00)
         val buffer = ByteBuffer.allocate(116)
         buffer.put(
@@ -881,17 +897,13 @@ class AACPManager {
         Log.d(TAG, "Sending Media Information packet to $targetMac")
         return sendDataPacket(
             createMediaInformationPacket(
-                selfMacAddress,
-                targetMac,
-                streamingState
+                selfMacAddress, targetMac, streamingState
             )
         )
     }
 
     fun createMediaInformationPacket(
-        selfMacAddress: String,
-        targetMacAddress: String,
-        streamingState: Boolean = true
+        selfMacAddress: String, targetMacAddress: String, streamingState: Boolean = true
     ): ByteArray {
         val opcode = byteArrayOf(Opcodes.SMART_ROUTING, 0x00)
         val buffer = ByteBuffer.allocate(138)
@@ -906,7 +918,7 @@ class AACPManager {
         )
         buffer.put(byteArrayOf(0x01, 0xE5.toByte(), 0x4A)) // unknown, constant
         buffer.put("PlayingApp".toByteArray())
-        buffer.put(byteArrayOf(0x56)) // 'V', seems like a identifier or a separator
+        buffer.put(byteArrayOf(0x56)) // 'V', seems like an identifier or a separator
         buffer.put("com.google.ios.youtube".toByteArray()) // package name, hardcoding for now, aforementioned reason
         buffer.put(byteArrayOf(0x52)) // 'R'
         buffer.put("HostStreamingState".toByteArray())
@@ -924,7 +936,7 @@ class AACPManager {
         buffer.put("AudioCategory".toByteArray())
         buffer.put(byteArrayOf(0x31, 0x2D, 0x01))
 
-        return opcode+buffer.array()
+        return opcode + buffer.array()
     }
 
     fun sendSmartRoutingShowUI(selfMacAddress: String): Boolean {
@@ -1006,9 +1018,15 @@ class AACPManager {
 
 
     fun sendAddTiPiDevice(selfMacAddress: String, targetMacAddress: String): Boolean {
-        if (selfMacAddress.length != 17 || !selfMacAddress.matches(Regex("([0-9A-Fa-f]{2}:){5}[0-9A-Fa-f]{2}")) || targetMacAddress.length != 17 || !targetMacAddress.matches(Regex("([0-9A-Fa-f]{2}:){5}[0-9A-Fa-f]{2}"))) {
+        if (selfMacAddress.length != 17 || !selfMacAddress.matches(Regex("([0-9A-Fa-f]{2}:){5}[0-9A-Fa-f]{2}")) || targetMacAddress.length != 17 || !targetMacAddress.matches(
+                Regex("([0-9A-Fa-f]{2}:){5}[0-9A-Fa-f]{2}")
+            )
+        ) {
             // throw IllegalArgumentException("MAC address must be 6 bytes")
-            Log.w(TAG, "Invalid MAC address format, got: selfMacAddress=$selfMacAddress, targetMacAddress=$targetMacAddress")
+            Log.w(
+                TAG,
+                "Invalid MAC address format, got: selfMacAddress=$selfMacAddress, targetMacAddress=$targetMacAddress"
+            )
             return false
         }
         Log.d(TAG, "Sending Add TiPi Device packet to $targetMacAddress")
@@ -1042,8 +1060,7 @@ class AACPManager {
     }
 
     data class ControlCommand(
-        val identifier: Byte,
-        val value: ByteArray
+        val identifier: Byte, val value: ByteArray
     ) {
         override fun equals(other: Any?): Boolean {
             if (this === other) return true
@@ -1065,25 +1082,25 @@ class AACPManager {
 
         companion object {
             fun fromByteArray(data: ByteArray): ControlCommand {
-                if (data.size < 4) {
-                    throw IllegalArgumentException("Data array too short to parse ControlCommand")
+                var offset = 0
+                while (data.size - offset >= 4 &&
+                    data[offset] == 0x04.toByte() &&
+                    data[offset + 1] == 0x00.toByte() &&
+                    data[offset + 2] == 0x04.toByte() &&
+                    data[offset + 3] == 0x00.toByte()
+                ) {
+                    offset += 4
                 }
-                if (data[0] == 0x04.toByte() && data[1] == 0x00.toByte() && data[2] == 0x04.toByte() && data[3] == 0x00.toByte()) {
-                    val newData = ByteArray(data.size - 4)
-                    System.arraycopy(data, 4, newData, 0, data.size - 4)
-                    return fromByteArray(newData)
+                if (data.size - offset < 7) {
+                    throw IllegalArgumentException("Too short for ControlCommand")
                 }
-                if (data[0] != Opcodes.CONTROL_COMMAND) {
-                    throw IllegalArgumentException("Data array does not start with CONTROL_COMMAND opcode")
+                if (data[offset] != Opcodes.CONTROL_COMMAND) {
+                    throw IllegalArgumentException("Invalid opcode")
                 }
-                val identifier = data[2]
-
-                val value = ByteArray(4)
-                System.arraycopy(data, 3, value, 0, 4)
-
-                val trimmedValue = value.dropLastWhile { it == 0x00.toByte() }.toByteArray()
-                val finalValue = if (trimmedValue.isEmpty()) byteArrayOf(0x00) else trimmedValue
-                return ControlCommand(identifier, finalValue)
+                val identifier = data[offset + 2]
+                val value = data.copyOfRange(offset + 3, offset + 7)
+                val trimmed = value.dropLastWhile { it == 0x00.toByte() }.toByteArray()
+                return ControlCommand(identifier, if (trimmed.isEmpty()) byteArrayOf(0x00) else trimmed)
             }
         }
     }
@@ -1095,10 +1112,8 @@ class AACPManager {
         triplePressCustomized: Boolean = false,
         longPressCustomized: Boolean = false
     ): Boolean {
-        val value = ((if (singlePressCustomized) 0x01 else 0) or
-            (if (doublePressCustomized) 0x02 else 0) or
-            (if (triplePressCustomized) 0x04 else 0) or
-            (if (longPressCustomized) 0x08 else 0)).toByte()
+        val value =
+            ((if (singlePressCustomized) 0x01 else 0) or (if (doublePressCustomized) 0x02 else 0) or (if (triplePressCustomized) 0x04 else 0) or (if (longPressCustomized) 0x08 else 0)).toByte()
         Log.d(TAG, "Sending Stem Config Packet with value: ${value.toHexString()}")
         return sendControlCommand(
             ControlCommandIdentifiers.STEM_CONFIG.value, value
@@ -1111,21 +1126,26 @@ class AACPManager {
             Log.d(TAG, "Sending packet: ${packet.joinToString(" ") { "%02X".format(it) }}")
 
             if (packet[4] == Opcodes.CONTROL_COMMAND) {
-                val controlCommand = ControlCommand.fromByteArray(packet)
+                val controlCommand = try {
+                    ControlCommand.fromByteArray(packet)
+                } catch (e: Exception) {
+                    Log.w(TAG, "Invalid control command: ${e.message}")
+                    callback?.onUnknownPacketReceived(packet)
+                    return false
+                }
                 Log.d(
-                    TAG,
-                    "Control command: ${controlCommand.identifier.toHexString()} - ${
-                        controlCommand.value.joinToString(" ") { "%02X".format(it) }
-                    }"
-                )
+                    TAG, "Control command: ${controlCommand.identifier.toHexString()} - ${
+                    controlCommand.value.joinToString(" ") { "%02X".format(it) }
+                }")
                 setControlCommandStatusValue(
                     ControlCommandIdentifiers.fromByte(controlCommand.identifier) ?: return false,
                     controlCommand.value
                 )
             }
 
-            val socket = BluetoothConnectionManager.getCurrentSocket()
-            if (socket?.isConnected == true) {
+            val socket = BluetoothConnectionManager.getCurrentSocket() ?: return false
+
+            if (socket.isConnected) {
                 socket.outputStream?.write(packet)
                 socket.outputStream?.flush()
                 return true
@@ -1202,7 +1222,10 @@ class AACPManager {
         var offset = 9
         for (i in 0 until deviceCount) {
             if (offset + 8 > data.size) {
-                Log.w(TAG, "Data array too short to parse all connected devices, returning what we have")
+                Log.w(
+                    TAG,
+                    "Data array too short to parse all connected devices, returning what we have"
+                )
                 break
             }
             val macBytes = data.sliceArray(offset until offset + 6)
@@ -1216,6 +1239,7 @@ class AACPManager {
 
         return devices
     }
+
     fun sendSomePacketIDontKnowWhatItIs() {
         // 2900 00ff ffff ffff ffff -- enables setting EQ
         sendDataPacket(

android/app/src/main/java/me/kavishdevar/librepods/bluetooth/ATTManager.kt

@@ -21,17 +21,18 @@
   * and receiving notifications. It is not a complete implementation of the ATT protocol.
  */
 
-package me.kavishdevar.librepods.utils
+package me.kavishdevar.librepods.bluetooth
 
 import android.annotation.SuppressLint
+import android.bluetooth.BluetoothAdapter
 import android.bluetooth.BluetoothDevice
 import android.bluetooth.BluetoothSocket
 import android.os.ParcelUuid
 import android.util.Log
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
 import kotlinx.coroutines.launch
-import org.lsposed.hiddenapibypass.HiddenApiBypass
 import java.io.InputStream
 import java.io.OutputStream
 import java.util.concurrent.LinkedBlockingQueue
@@ -49,7 +50,7 @@ enum class ATTCCCDHandles(val value: Int) {
     HEARING_AID(ATTHandles.HEARING_AID.value + 1),
 }
 
-class ATTManager(private val device: BluetoothDevice) {
+class ATTManager(private val adapter: BluetoothAdapter, private val device: BluetoothDevice) {
     companion object {
         private const val TAG = "ATTManager"
 
@@ -62,18 +63,26 @@ class ATTManager(private val device: BluetoothDevice) {
     private var input: InputStream? = null
     private var output: OutputStream? = null
     private val listeners = mutableMapOf<Int, MutableList<(ByteArray) -> Unit>>()
-    private var notificationJob: kotlinx.coroutines.Job? = null
+    private var notificationJob: Job? = null
 
     // queue for non-notification PDUs (responses to requests)
     private val responses = LinkedBlockingQueue<ByteArray>()
 
     @SuppressLint("MissingPermission")
     fun connect() {
-        HiddenApiBypass.addHiddenApiExemptions("Landroid/bluetooth/BluetoothSocket;")
         val uuid = ParcelUuid.fromString("00000000-0000-0000-0000-000000000000")
 
-        socket = createBluetoothSocket(device, uuid)
-        socket!!.connect()
+        try {
+            socket = createBluetoothSocket(adapter, device, uuid)
+        } catch (e: Exception) {
+            Log.w(TAG, "Failed to create socket")
+        }
+        try {
+            socket!!.connect()
+        } catch (e: Exception) {
+            Log.w(TAG, "ATT socket failed to connect")
+            return
+        }
         input = socket!!.inputStream
         output = socket!!.outputStream
         Log.d(TAG, "Connected to ATT")
@@ -163,6 +172,7 @@ class ATTManager(private val device: BluetoothDevice) {
     }
 
     private fun writeRaw(pdu: ByteArray) {
+        if (output == null) return
         output?.write(pdu)
         output?.flush()
         Log.d(TAG, "writeRaw: ${pdu.joinToString(" ") { String.format("%02X", it) }}")
@@ -195,9 +205,10 @@ class ATTManager(private val device: BluetoothDevice) {
         }
     }
 
-    private fun createBluetoothSocket(device: BluetoothDevice, uuid: ParcelUuid): BluetoothSocket {
+    private fun createBluetoothSocket(adapter: BluetoothAdapter, device: BluetoothDevice, uuid: ParcelUuid): BluetoothSocket {
         val type = 3 // L2CAP
         val constructorSpecs = listOf(
+            arrayOf(adapter, device, type, true, true, 31, uuid),
             arrayOf(device, type, true, true, 31, uuid),
             arrayOf(device, type, 1, true, true, 31, uuid),
             arrayOf(type, 1, true, true, device, 31, uuid),
@@ -219,7 +230,12 @@ class ATTManager(private val device: BluetoothDevice) {
             try {
                 Log.d("ATTManager", "Trying constructor signature #${index + 1}")
                 attemptedConstructors++
-                return HiddenApiBypass.newInstance(BluetoothSocket::class.java, *params) as BluetoothSocket
+
+                val paramTypes = params.map { it::class.javaPrimitiveType ?: it::class.java }.toTypedArray()
+                val constructor = BluetoothSocket::class.java.getDeclaredConstructor(*paramTypes)
+                constructor.isAccessible = true
+                return constructor.newInstance(*params) as BluetoothSocket
+
             } catch (e: Exception) {
                 Log.e("ATTManager", "Constructor signature #${index + 1} failed: ${e.message}")
                 lastException = e

android/app/src/main/java/me/kavishdevar/librepods/bluetooth/BLEManager.kt

@@ -16,7 +16,7 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-package me.kavishdevar.librepods.utils
+package me.kavishdevar.librepods.bluetooth
 
 import android.annotation.SuppressLint
 import android.bluetooth.BluetoothManager
@@ -30,8 +30,10 @@ import android.content.SharedPreferences
 import android.os.Handler
 import android.os.Looper
 import android.util.Log
+import me.kavishdevar.librepods.utils.BluetoothCryptography
 import javax.crypto.Cipher
 import javax.crypto.spec.SecretKeySpec
+import kotlin.collections.iterator
 import kotlin.io.encoding.Base64
 import kotlin.io.encoding.ExperimentalEncodingApi
 

android/app/src/main/java/me/kavishdevar/librepods/bluetooth/BluetoothConnectionManager.kt

@@ -16,7 +16,7 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-package me.kavishdevar.librepods.utils
+package me.kavishdevar.librepods.bluetooth
 
 import android.bluetooth.BluetoothDevice
 import android.bluetooth.BluetoothSocket

android/app/src/main/java/me/kavishdevar/librepods/composables/BatteryIndicator.kt

@@ -1,128 +0,0 @@
-/*
-    LibrePods - AirPods liberated from Apple’s ecosystem
-    Copyright (C) 2025 LibrePods contributors
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <https://www.gnu.org/licenses/>.
-*/
-
-package me.kavishdevar.librepods.composables
-
-
-import android.content.res.Configuration
-import androidx.compose.animation.core.Animatable
-import androidx.compose.animation.core.tween
-import androidx.compose.foundation.background
-import androidx.compose.foundation.isSystemInDarkTheme
-import androidx.compose.foundation.layout.Box
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.size
-import androidx.compose.foundation.layout.height
-import androidx.compose.material3.CircularProgressIndicator
-import androidx.compose.material3.Text
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.LaunchedEffect
-import androidx.compose.runtime.remember
-import androidx.compose.ui.Alignment
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.draw.scale
-import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.graphics.StrokeCap
-import androidx.compose.ui.text.TextStyle
-import androidx.compose.ui.text.font.Font
-import androidx.compose.ui.text.font.FontFamily
-import androidx.compose.ui.text.style.TextAlign
-import androidx.compose.ui.tooling.preview.Preview
-import androidx.compose.ui.unit.dp
-import androidx.compose.ui.unit.sp
-import me.kavishdevar.librepods.R
-
-@Composable
-fun BatteryIndicator(
-    batteryPercentage: Int,
-    charging: Boolean = false,
-    prefix: String = "",
-    previousCharging: Boolean = false,
-) {
-    val isDarkTheme = isSystemInDarkTheme()
-    val backgroundColor = if (isDarkTheme) Color.Black else Color(0xFFF2F2F7)
-    val batteryTextColor = if (isDarkTheme) Color.White else Color.Black
-    val batteryFillColor = if (batteryPercentage > 25)
-        if (isDarkTheme) Color(0xFF2ED158) else Color(0xFF35C759)
-        else if (isDarkTheme) Color(0xFFFC4244) else Color(0xFFfe373C)
-
-    val initialScale = if (previousCharging) 1f else 0f
-    val scaleAnim = remember { Animatable(initialScale) }
-    val targetScale = if (charging) 1f else 0f
-
-    LaunchedEffect(previousCharging, charging) {
-        scaleAnim.animateTo(targetScale, animationSpec = tween(durationMillis = 250))
-    }
-
-    Column(
-        modifier = Modifier
-            .background(backgroundColor), // just for haze to work
-        horizontalAlignment = Alignment.CenterHorizontally
-    ) {
-        Box(
-            modifier = Modifier.padding(bottom = 4.dp),
-            contentAlignment = Alignment.Center
-        ) {
-            CircularProgressIndicator(
-                progress = { batteryPercentage / 100f },
-                modifier = Modifier.size(40.dp),
-                color = batteryFillColor,
-                gapSize = 0.dp,
-                strokeCap = StrokeCap.Round,
-                strokeWidth = 4.dp,
-                trackColor = if (isDarkTheme) Color(0xFF0E0E0F) else Color(0xFFE3E3E8)
-            )
-
-            Text(
-                text = "\uDBC0\uDEE6",
-                style = TextStyle(
-                    fontSize = 12.sp,
-                    fontFamily = FontFamily(Font(R.font.sf_pro)),
-                    color = batteryFillColor,
-                    textAlign = TextAlign.Center
-                ),
-                modifier = Modifier.scale(scaleAnim.value)
-            )
-        }
-
-        Spacer(modifier = Modifier.height(4.dp))
-
-        Text(
-            text = "$prefix $batteryPercentage%",
-            color = batteryTextColor,
-            style = TextStyle(
-                fontSize = 16.sp,
-                fontFamily = FontFamily(Font(R.font.sf_pro)),
-                textAlign = TextAlign.Center
-            ),
-        )
-    }
-}
-
-@Preview(uiMode = Configuration.UI_MODE_NIGHT_YES)
-@Composable
-fun BatteryIndicatorPreview() {
-    val bg = if (isSystemInDarkTheme()) Color.Black else Color(0xFFF2F2F7)
-    Box(
-        modifier = Modifier.background(bg)
-    ) {
-        BatteryIndicator(batteryPercentage = 24, charging = true, prefix = "\uDBC6\uDCE5", previousCharging = false)
-    }
-}

android/app/src/main/java/me/kavishdevar/librepods/composables/BatteryView.kt

@@ -1,235 +0,0 @@
-/*
-    LibrePods - AirPods liberated from Apple’s ecosystem
-    Copyright (C) 2025 LibrePods contributors
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <https://www.gnu.org/licenses/>.
-*/
-
-@file:OptIn(ExperimentalEncodingApi::class)
-
-package me.kavishdevar.librepods.composables
-
-import android.content.BroadcastReceiver
-import android.content.Context
-import android.content.Intent
-import android.content.IntentFilter
-import android.content.res.Configuration
-import android.os.Build
-import android.util.Log
-import androidx.compose.foundation.Image
-import androidx.compose.foundation.background
-import androidx.compose.foundation.isSystemInDarkTheme
-import androidx.compose.foundation.layout.Arrangement
-import androidx.compose.foundation.layout.Box
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.Row
-import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.width
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.LaunchedEffect
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
-import androidx.compose.ui.Alignment
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.graphics.ImageBitmap
-import androidx.compose.ui.platform.LocalContext
-import androidx.compose.ui.res.imageResource
-import androidx.compose.ui.res.stringResource
-import androidx.compose.ui.tooling.preview.Preview
-import androidx.compose.ui.unit.dp
-import me.kavishdevar.librepods.R
-import me.kavishdevar.librepods.constants.AirPodsNotifications
-import me.kavishdevar.librepods.constants.Battery
-import me.kavishdevar.librepods.constants.BatteryComponent
-import me.kavishdevar.librepods.constants.BatteryStatus
-import me.kavishdevar.librepods.services.AirPodsService
-import kotlin.io.encoding.ExperimentalEncodingApi
-
-@Composable
-fun BatteryView(service: AirPodsService, preview: Boolean = false) {
-    val batteryStatus = remember { mutableStateOf<List<Battery>>(listOf()) }
-
-    val previousBatteryStatus = remember { mutableStateOf<List<Battery>>(listOf()) }
-
-    @Suppress("DEPRECATION") val batteryReceiver = remember {
-        object : BroadcastReceiver() {
-            override fun onReceive(context: Context, intent: Intent) {
-                if (intent.action == AirPodsNotifications.BATTERY_DATA) {
-                    batteryStatus.value =
-                        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
-                            intent.getParcelableArrayListExtra("data", Battery::class.java)
-                        } else {
-                            intent.getParcelableArrayListExtra("data")
-                        }?.toList() ?: listOf()
-                }
-                else if (intent.action == AirPodsNotifications.DISCONNECT_RECEIVERS) {
-                    try {
-                        context.unregisterReceiver(this)
-                    }
-                    catch (_: IllegalArgumentException) {
-                        Log.wtf("BatteryReceiver", "Receiver already unregistered")
-                    }
-                }
-            }
-        }
-    }
-    val context = LocalContext.current
-
-    LaunchedEffect(context) {
-        val batteryIntentFilter = IntentFilter()
-            .apply {
-                addAction(AirPodsNotifications.BATTERY_DATA)
-                addAction(AirPodsNotifications.DISCONNECT_RECEIVERS)
-            }
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
-            context.registerReceiver(
-                batteryReceiver,
-                batteryIntentFilter,
-                Context.RECEIVER_EXPORTED
-            )
-        }
-    }
-
-    previousBatteryStatus.value = batteryStatus.value
-    batteryStatus.value = service.getBattery()
-
-    if (preview) {
-        batteryStatus.value = listOf(
-            Battery(BatteryComponent.LEFT, 100, BatteryStatus.NOT_CHARGING),
-            Battery(BatteryComponent.RIGHT, 94, BatteryStatus.CHARGING),
-            Battery(BatteryComponent.CASE, 40, BatteryStatus.CHARGING)
-        )
-        previousBatteryStatus.value = batteryStatus.value
-    }
-
-    val left = batteryStatus.value.find { it.component == BatteryComponent.LEFT }
-    val right = batteryStatus.value.find { it.component == BatteryComponent.RIGHT }
-    val case = batteryStatus.value.find { it.component == BatteryComponent.CASE }
-    val leftLevel = left?.level ?: 0
-    val rightLevel = right?.level ?: 0
-    val caseLevel = case?.level ?: 0
-    val leftCharging = left?.status == BatteryStatus.CHARGING
-    val rightCharging = right?.status == BatteryStatus.CHARGING
-    val caseCharging = case?.status == BatteryStatus.CHARGING
-
-    val prevLeft = previousBatteryStatus.value.find { it.component == BatteryComponent.LEFT }
-    val prevRight = previousBatteryStatus.value.find { it.component == BatteryComponent.RIGHT }
-    val prevCase = previousBatteryStatus.value.find { it.component == BatteryComponent.CASE }
-    val prevLeftCharging = prevLeft?.status == BatteryStatus.CHARGING
-    val prevRightCharging = prevRight?.status == BatteryStatus.CHARGING
-    val prevCaseCharging = prevCase?.status == BatteryStatus.CHARGING
-
-    val singleDisplayed = remember { mutableStateOf(false) }
-
-    val airpodsInstance = service.airpodsInstance
-    if (airpodsInstance == null) {
-        return
-    }
-    val budsRes = airpodsInstance.model.budsRes
-    val caseRes = airpodsInstance.model.caseRes
-
-    Row {
-        Column (
-            modifier = Modifier
-                .fillMaxWidth(0.5f),
-            horizontalAlignment = Alignment.CenterHorizontally
-        ) {
-            Image (
-                bitmap = ImageBitmap.imageResource(budsRes),
-                contentDescription = stringResource(R.string.buds),
-                modifier = Modifier
-                    .fillMaxWidth()
-                    .padding(8.dp)
-            )
-            if (
-                leftCharging == rightCharging &&
-                (leftLevel - rightLevel) in -3..3
-            )
-            {
-                BatteryIndicator(
-                    leftLevel.coerceAtMost(rightLevel),
-                    leftCharging,
-                    previousCharging = (prevLeftCharging && prevRightCharging)
-                )
-                singleDisplayed.value = true
-            }
-            else {
-                singleDisplayed.value = false
-                Row (
-                    modifier = Modifier
-                        .fillMaxWidth(),
-                    horizontalArrangement = Arrangement.Center
-                ) {
-                    if (leftLevel > 0 || left?.status != BatteryStatus.DISCONNECTED) {
-                        BatteryIndicator(
-                            leftLevel,
-                            leftCharging,
-                            "\uDBC6\uDCE5",
-                            previousCharging = prevLeftCharging
-                        )
-                    }
-                    if (leftLevel > 0 && rightLevel > 0)
-                    {
-                        Spacer(modifier = Modifier.width(16.dp))
-                    }
-                    if (rightLevel > 0 || right?.status != BatteryStatus.DISCONNECTED)
-                    {
-                        BatteryIndicator(
-                            rightLevel,
-                            rightCharging,
-                            "\uDBC6\uDCE8",
-                            previousCharging = prevRightCharging
-                        )
-                    }
-                }
-            }
-        }
-
-        Column (
-            modifier = Modifier
-                .fillMaxWidth(),
-            horizontalAlignment = Alignment.CenterHorizontally
-        ) {
-            Image(
-                bitmap = ImageBitmap.imageResource(caseRes),
-                contentDescription = stringResource(R.string.case_alt),
-                modifier = Modifier
-                    .fillMaxWidth()
-                    .padding(8.dp)
-            )
-                if (caseLevel > 0 || case?.status != BatteryStatus.DISCONNECTED) {
-                    BatteryIndicator(
-                        caseLevel,
-                        caseCharging,
-                        prefix = if (!singleDisplayed.value) "\uDBC3\uDE6C" else "",
-                        previousCharging = prevCaseCharging
-                    )
-                }
-        }
-    }
-}
-
-@Preview(uiMode = Configuration.UI_MODE_NIGHT_YES)
-@Composable
-fun BatteryViewPreview() {
-    val bg = if (isSystemInDarkTheme()) Color.Black else Color(0xFFF2F2F7)
-    Box(
-        modifier = Modifier.background(bg)
-    ) {
-        BatteryView(AirPodsService(), preview = true)
-    }
-}

android/app/src/main/java/me/kavishdevar/librepods/composables/ConfirmationDialog.kt

@@ -1,217 +0,0 @@
-/*
-    LibrePods - AirPods liberated from Apple’s ecosystem
-    Copyright (C) 2025 LibrePods contributors
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <https://www.gnu.org/licenses/>.
-*/
-
-package me.kavishdevar.librepods.composables
-
-import androidx.compose.foundation.background
-import androidx.compose.foundation.isSystemInDarkTheme
-import androidx.compose.foundation.layout.Arrangement
-import androidx.compose.foundation.layout.Box
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.Row
-import androidx.compose.foundation.layout.fillMaxHeight
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.requiredWidthIn
-import androidx.compose.foundation.layout.width
-import androidx.compose.foundation.shape.RoundedCornerShape
-import androidx.compose.material3.HorizontalDivider
-import androidx.compose.material3.Text
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.MutableState
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
-import androidx.compose.runtime.setValue
-import androidx.compose.ui.Alignment
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.draw.clip
-import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.input.pointer.PointerEventType
-import androidx.compose.ui.input.pointer.pointerInput
-import androidx.compose.ui.text.TextStyle
-import androidx.compose.ui.text.font.Font
-import androidx.compose.ui.text.font.FontFamily
-import androidx.compose.ui.text.font.FontWeight
-import androidx.compose.ui.text.style.TextAlign
-import androidx.compose.ui.unit.dp
-import androidx.compose.ui.unit.sp
-import androidx.compose.ui.window.Dialog
-import dev.chrisbanes.haze.HazeState
-import dev.chrisbanes.haze.hazeEffect
-import dev.chrisbanes.haze.materials.CupertinoMaterials
-import dev.chrisbanes.haze.materials.ExperimentalHazeMaterialsApi
-import me.kavishdevar.librepods.R
-
-@ExperimentalHazeMaterialsApi
-@Composable
-fun ConfirmationDialog(
-    showDialog: MutableState<Boolean>,
-    title: String,
-    message: String,
-    confirmText: String = "Enable",
-    dismissText: String = "Cancel",
-    onConfirm: () -> Unit,
-    onDismiss: () -> Unit = { showDialog.value = false },
-    hazeState: HazeState,
-) {
-    val isDarkTheme = isSystemInDarkTheme()
-    val textColor = if (isDarkTheme) Color.White else Color.Black
-    val accentColor = if (isDarkTheme) Color(0xFF007AFF) else Color(0xFF3C6DF5)
-    if (showDialog.value) {
-        Dialog(onDismissRequest = { showDialog.value = false }) {
-            Box(
-                modifier = Modifier
-                    // .fillMaxWidth(0.75f)
-                    .requiredWidthIn(min = 200.dp, max = 360.dp)
-                    .background(Color.Transparent, RoundedCornerShape(14.dp))
-                    .clip(RoundedCornerShape(14.dp))
-                    .hazeEffect(
-                        hazeState,
-                        style = CupertinoMaterials.regular(
-                            containerColor = if (isDarkTheme) Color(0xFF1C1C1E).copy(alpha = 0.95f) else Color.White.copy(alpha = 0.95f)
-                        )
-                    )
-            ) {
-                Column(horizontalAlignment = Alignment.CenterHorizontally) {
-                    androidx.compose.foundation.layout.Spacer(modifier = Modifier.height(24.dp))
-                    Text(
-                        title,
-                        style = TextStyle(
-                            fontSize = 16.sp,
-                            fontWeight = FontWeight.Bold,
-                            color = textColor,
-                            fontFamily = FontFamily(Font(R.font.sf_pro))
-                        ),
-                        textAlign = TextAlign.Center,
-                        modifier = Modifier.padding(horizontal = 16.dp)
-                    )
-                    androidx.compose.foundation.layout.Spacer(modifier = Modifier.height(12.dp))
-                    Text(
-                        message,
-                        style = TextStyle(
-                            fontSize = 14.sp,
-                            color = textColor.copy(alpha = 0.8f),
-                            fontFamily = FontFamily(Font(R.font.sf_pro))
-                        ),
-                        textAlign = TextAlign.Center,
-                        modifier = Modifier.padding(horizontal = 16.dp)
-                    )
-                    androidx.compose.foundation.layout.Spacer(modifier = Modifier.height(16.dp))
-                    HorizontalDivider(
-                        thickness = 1.dp,
-                        color = Color(0x40888888),
-                        modifier = Modifier.fillMaxWidth()
-                    )
-                    var leftPressed by remember { mutableStateOf(false) }
-                    var rightPressed by remember { mutableStateOf(false) }
-                    val pressedColor = if (isDarkTheme) Color(0x40888888) else Color(0x40D9D9D9)
-                    Row(
-                        modifier = Modifier
-                            .fillMaxWidth()
-                            .height(48.dp)
-                            .pointerInput(Unit) {
-                                awaitPointerEventScope {
-                                    while (true) {
-                                        val event = awaitPointerEvent()
-                                        val position = event.changes.first().position
-                                        val width = size.width.toFloat()
-                                        val height = size.height.toFloat()
-                                        val isWithinBounds = position.y >= 0 && position.y <= height
-                                        val isLeft = position.x < width / 2
-                                        event.changes.first().consume()
-                                        when (event.type) {
-                                            PointerEventType.Press -> {
-                                                if (isWithinBounds) {
-                                                    leftPressed = isLeft
-                                                    rightPressed = !isLeft
-                                                } else {
-                                                    leftPressed = false
-                                                    rightPressed = false
-                                                }
-                                            }
-                                            PointerEventType.Move -> {
-                                                if (isWithinBounds) {
-                                                    leftPressed = isLeft
-                                                    rightPressed = !isLeft
-                                                } else {
-                                                    leftPressed = false
-                                                    rightPressed = false
-                                                }
-                                            }
-                                            PointerEventType.Release -> {
-                                                if (isWithinBounds) {
-                                                    if (leftPressed) {
-                                                        onDismiss()
-                                                    } else if (rightPressed) {
-                                                        onConfirm()
-                                                    }
-                                                }
-                                                leftPressed = false
-                                                rightPressed = false
-                                            }
-                                        }
-                                    }
-                                }
-                            },
-                        horizontalArrangement = Arrangement.Start,
-                        verticalAlignment = Alignment.CenterVertically
-                    ) {
-                        Box(
-                            modifier = Modifier
-                                .weight(1f)
-                                .fillMaxHeight()
-                                .background(if (leftPressed) pressedColor else Color.Transparent),
-                            contentAlignment = Alignment.Center
-                        ) {
-                            Text(
-                                text = dismissText,
-                                style = TextStyle(
-                                    color = accentColor,
-                                    fontFamily = FontFamily(Font(R.font.sf_pro))
-                                )
-                            )
-                        }
-                        Box(
-                            modifier = Modifier
-                                .width(1.dp)
-                                .fillMaxHeight()
-                                .background(Color(0x40888888))
-                        )
-                        Box(
-                            modifier = Modifier
-                                .weight(1f)
-                                .fillMaxHeight()
-                                .background(if (rightPressed) pressedColor else Color.Transparent),
-                            contentAlignment = Alignment.Center
-                        ) {
-                            Text(
-                                text = confirmText,
-                                style = TextStyle(
-                                    color = accentColor,
-                                    fontFamily = FontFamily(Font(R.font.sf_pro))
-                                )
-                            )
-                        }
-                    }
-                }
-            }
-        }
-    }
-}

android/app/src/main/java/me/kavishdevar/librepods/composables/HearingHealthSettings.kt

@@ -1,109 +0,0 @@
-/*
-    LibrePods - AirPods liberated from Apple’s ecosystem
-    Copyright (C) 2025 LibrePods contributors
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <https://www.gnu.org/licenses/>.
-*/
-
-@file:OptIn(ExperimentalEncodingApi::class)
-
-package me.kavishdevar.librepods.composables
-
-import androidx.compose.foundation.background
-import androidx.compose.foundation.isSystemInDarkTheme
-import androidx.compose.foundation.layout.Box
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.shape.RoundedCornerShape
-import androidx.compose.material3.HorizontalDivider
-import androidx.compose.material3.Text
-import androidx.compose.runtime.Composable
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.draw.clip
-import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.res.stringResource
-import androidx.compose.ui.text.TextStyle
-import androidx.compose.ui.text.font.FontWeight
-import androidx.compose.ui.unit.dp
-import androidx.compose.ui.unit.sp
-import androidx.navigation.NavController
-import me.kavishdevar.librepods.R
-import me.kavishdevar.librepods.composables.NavigationButton
-import me.kavishdevar.librepods.services.ServiceManager
-import me.kavishdevar.librepods.utils.Capability
-import kotlin.io.encoding.ExperimentalEncodingApi
-
-@Composable
-fun HearingHealthSettings(navController: NavController) {
-    val service = ServiceManager.getService()
-    if (service == null) return
-    val airpodsInstance = service.airpodsInstance
-    if (airpodsInstance == null) return
-    if (airpodsInstance.model.capabilities.contains(Capability.HEARING_AID)) {
-        val isDarkTheme = isSystemInDarkTheme()
-        val textColor = if (isDarkTheme) Color.White else Color.Black
-        val backgroundColor = if (isDarkTheme) Color(0xFF1C1C1E) else Color(0xFFFFFFFF)
-
-        if (airpodsInstance.model.capabilities.contains(Capability.PPE)) {
-            Box(
-                modifier = Modifier
-                    .background(if (isDarkTheme) Color(0xFF000000) else Color(0xFFF2F2F7))
-                    .padding(horizontal = 16.dp, vertical = 4.dp)
-            ){
-                Text(
-                    text = stringResource(R.string.hearing_health),
-                    style = TextStyle(
-                        fontSize = 14.sp,
-                        fontWeight = FontWeight.Bold,
-                        color = textColor.copy(alpha = 0.6f)
-                    )
-                )
-            }
-            Column(
-                modifier = Modifier
-                    .clip(RoundedCornerShape(28.dp))
-                    .fillMaxWidth()
-                    .background(backgroundColor, RoundedCornerShape(28.dp))
-                    .padding(top = 2.dp)
-            ) {
-                NavigationButton(
-                    to = "hearing_protection",
-                    name = stringResource(R.string.hearing_protection),
-                    navController = navController,
-                    independent = false
-                )
-                HorizontalDivider(
-                    thickness = 1.dp,
-                    color = Color(0x40888888),
-                    modifier = Modifier
-                        .padding(horizontal = 12.dp)
-                )
-                
-                NavigationButton(
-                    to = "hearing_aid",
-                    name = stringResource(R.string.hearing_aid),
-                    navController = navController,
-                    independent = false
-                )
-            }
-        } else {
-            NavigationButton(
-                to = "hearing_aid",
-                name = stringResource(R.string.hearing_aid),
-                navController = navController
-            )
-        }
-    }
-}

android/app/src/main/java/me/kavishdevar/librepods/composables/StyledToggle.kt

@@ -1,687 +0,0 @@
-/*
-    LibrePods - AirPods liberated from Apple’s ecosystem
-    Copyright (C) 2025 LibrePods contributors
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <https://www.gnu.org/licenses/>.
-*/
-
-@file:OptIn(ExperimentalEncodingApi::class)
-
-package me.kavishdevar.librepods.composables
-
-import android.content.SharedPreferences
-import android.util.Log
-import androidx.compose.animation.animateColorAsState
-import androidx.compose.animation.core.tween
-import androidx.compose.foundation.background
-import androidx.compose.foundation.clickable
-import androidx.compose.foundation.gestures.detectTapGestures
-import androidx.compose.foundation.interaction.MutableInteractionSource
-import androidx.compose.foundation.isSystemInDarkTheme
-import androidx.compose.foundation.layout.Box
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.Row
-import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.shape.RoundedCornerShape
-import androidx.compose.material3.Text
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.DisposableEffect
-import androidx.compose.runtime.LaunchedEffect
-import androidx.compose.runtime.MutableState
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
-import androidx.compose.runtime.setValue
-import androidx.compose.ui.Alignment
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.input.pointer.pointerInput
-import androidx.compose.ui.platform.LocalContext
-import androidx.compose.ui.text.TextStyle
-import androidx.compose.ui.text.font.Font
-import androidx.compose.ui.text.font.FontFamily
-import androidx.compose.ui.text.font.FontWeight
-import androidx.compose.ui.tooling.preview.Preview
-import androidx.compose.ui.unit.dp
-import androidx.compose.ui.unit.sp
-import androidx.core.content.edit
-import me.kavishdevar.librepods.R
-import me.kavishdevar.librepods.services.ServiceManager
-import me.kavishdevar.librepods.utils.AACPManager
-import me.kavishdevar.librepods.utils.ATTHandles
-import kotlin.io.encoding.ExperimentalEncodingApi
-
-@Composable
-fun StyledToggle(
-    title: String? = null,
-    label: String,
-    description: String? = null,
-    checkedState: MutableState<Boolean> = remember { mutableStateOf(false) } ,
-    sharedPreferenceKey: String? = null,
-    sharedPreferences: SharedPreferences? = null,
-    independent: Boolean = true,
-    enabled: Boolean = true,
-    onCheckedChange: ((Boolean) -> Unit)? = null,
-) {
-    val isDarkTheme = isSystemInDarkTheme()
-    val textColor = if (isDarkTheme) Color.White else Color.Black
-    var checked by checkedState
-    var backgroundColor by remember { mutableStateOf(if (isDarkTheme) Color(0xFF1C1C1E) else Color(0xFFFFFFFF)) }
-    val animatedBackgroundColor by animateColorAsState(targetValue = backgroundColor, animationSpec = tween(durationMillis = 500))
-    if (sharedPreferenceKey != null && sharedPreferences != null) {
-        checked = sharedPreferences.getBoolean(sharedPreferenceKey, checked)
-    }
-    fun cb() {
-        if (sharedPreferences != null) {
-            if (sharedPreferenceKey == null) {
-                Log.e("StyledToggle", "SharedPreferenceKey is null but SharedPreferences is provided.")
-                return
-            }
-            sharedPreferences.edit { putBoolean(sharedPreferenceKey, checked) }
-        }
-        onCheckedChange?.invoke(checked)
-    }
-
-    if (independent) {
-        Column(modifier = Modifier.padding(vertical = 8.dp)) {
-            if (title != null) {
-                Text(
-                    text = title,
-                    style = TextStyle(
-                        fontSize = 14.sp,
-                        fontWeight = FontWeight.Bold,
-                        color = textColor.copy(alpha = 0.6f)
-                    ),
-                    modifier = Modifier.padding(start = 16.dp, end = 16.dp, top = 8.dp, bottom = 4.dp)
-                )
-            }
-            Box(
-                modifier = Modifier
-                    .background(animatedBackgroundColor, RoundedCornerShape(28.dp))
-                    .padding(4.dp)
-                    .pointerInput(Unit) {
-                        detectTapGestures(
-                            onPress = {
-                                backgroundColor =
-                                    if (isDarkTheme) Color(0x40888888) else Color(0x40D9D9D9)
-                                tryAwaitRelease()
-                                backgroundColor =
-                                    if (isDarkTheme) Color(0xFF1C1C1E) else Color(0xFFFFFFFF)
-                            },
-                            onTap = {
-                                if (enabled) {
-                                    checked = !checked
-                                    cb()
-                                }
-                            }
-                        )
-                    }
-            ) {
-                Row(
-                    modifier = Modifier
-                        .fillMaxWidth()
-                        .height(55.dp)
-                        .padding(horizontal = 12.dp),
-                    verticalAlignment = Alignment.CenterVertically
-                ) {
-                    Text(
-                        text = label,
-                        modifier = Modifier.weight(1f),
-                        style = TextStyle(
-                            fontSize = 16.sp,
-                            fontFamily = FontFamily(Font(R.font.sf_pro)),
-                            fontWeight = FontWeight.Normal,
-                            color = textColor
-                        )
-                    )
-                    StyledSwitch(
-                        checked = checked,
-                        enabled = enabled,
-                        onCheckedChange = {
-                            if (enabled) {
-                                checked = it
-                                cb()
-                            }
-                        }
-                    )
-                }
-            }
-            if (description != null) {
-                Spacer(modifier = Modifier.height(8.dp))
-                Box(
-                    modifier = Modifier
-                        .padding(horizontal = 16.dp)
-                        .background(if (isDarkTheme) Color(0xFF000000) else Color(0xFFF2F2F7))
-                ) {
-                    Text(
-                        text = description,
-                        style = TextStyle(
-                            fontSize = 12.sp,
-                            fontWeight = FontWeight.Light,
-                            color = textColor.copy(alpha = 0.6f),
-                            fontFamily = FontFamily(Font(R.font.sf_pro))
-                        )
-                    )
-                }
-            }
-        }
-    } else {
-        val isPressed = remember { mutableStateOf(false) }
-        Row(
-            modifier = Modifier
-                .fillMaxWidth()
-                .background(
-                    shape = RoundedCornerShape(28.dp),
-                    color = if (isPressed.value) Color(0xFFE0E0E0) else Color.Transparent
-                )
-                .padding(16.dp)
-                .pointerInput(Unit) {
-                    detectTapGestures(
-                        onPress = {
-                            isPressed.value = true
-                            tryAwaitRelease()
-                            isPressed.value = false
-                        }
-                    )
-                }
-                .clickable(
-                    indication = null,
-                    interactionSource = remember { MutableInteractionSource() }
-                ) {
-                    if (enabled) {
-                        checked = !checked
-                        cb()
-                    }
-                },
-            verticalAlignment = Alignment.CenterVertically
-        ) {
-            Column(
-                modifier = Modifier
-                    .weight(1f)
-                    .padding(end = 4.dp)
-            ) {
-                Text(
-                    text = label,
-                    style = TextStyle(
-                        fontSize = 16.sp,
-                        fontFamily = FontFamily(Font(R.font.sf_pro)),
-                        fontWeight = FontWeight.Normal,
-                        color = textColor
-                    )
-                )
-                Spacer(modifier = Modifier.height(4.dp))
-                if (description != null) {
-                    Text(
-                        text = description,
-                        style = TextStyle(
-                            fontSize = 12.sp,
-                            color = textColor.copy(0.6f),
-                            fontFamily = FontFamily(Font(R.font.sf_pro)),
-                        )
-                    )
-                }
-            }
-            StyledSwitch(
-                checked = checked,
-                enabled = enabled,
-                onCheckedChange = {
-                    if (enabled) {
-                        checked = it
-                        cb()
-                    }
-                }
-            )
-        }
-    }
-}
-
-@Composable
-fun StyledToggle(
-    title: String? = null,
-    label: String,
-    description: String? = null,
-    controlCommandIdentifier: AACPManager.Companion.ControlCommandIdentifiers,
-    independent: Boolean = true,
-    enabled: Boolean = true,
-    sharedPreferenceKey: String? = null,
-    sharedPreferences: SharedPreferences? = null,
-    onCheckedChange: ((Boolean) -> Unit)? = null,
-) {
-    val service = ServiceManager.getService() ?: return
-    val isDarkTheme = isSystemInDarkTheme()
-    val textColor = if (isDarkTheme) Color.White else Color.Black
-    val checkedValue = service.aacpManager.controlCommandStatusList.find {
-        it.identifier == controlCommandIdentifier
-    }?.value?.takeIf { it.isNotEmpty() }?.get(0)
-    var checked by remember { mutableStateOf(checkedValue == 1.toByte()) }
-    var backgroundColor by remember { mutableStateOf(if (isDarkTheme) Color(0xFF1C1C1E) else Color(0xFFFFFFFF)) }
-    val animatedBackgroundColor by animateColorAsState(targetValue = backgroundColor, animationSpec = tween(durationMillis = 500))
-    if (sharedPreferenceKey != null && sharedPreferences != null) {
-        checked = sharedPreferences.getBoolean(sharedPreferenceKey, checked)
-    }
-    fun cb() {
-        service.aacpManager.sendControlCommand(identifier = controlCommandIdentifier.value, value = checked)
-        if (sharedPreferences != null) {
-            if (sharedPreferenceKey == null) {
-                Log.e("StyledToggle", "SharedPreferenceKey is null but SharedPreferences is provided.")
-                return
-            }
-            sharedPreferences.edit { putBoolean(sharedPreferenceKey, checked) }
-        }
-        onCheckedChange?.invoke(checked)
-    }
-
-    val listener = remember {
-        object : AACPManager.ControlCommandListener {
-            override fun onControlCommandReceived(controlCommand: AACPManager.ControlCommand) {
-                if (controlCommand.identifier == controlCommandIdentifier.value) {
-                    Log.d("StyledToggle", "Received control command for $label: ${controlCommand.value}")
-                    checked = controlCommand.value.takeIf { it.isNotEmpty() }?.get(0) == 1.toByte()
-                }
-            }
-        }
-    }
-    LaunchedEffect(Unit) {
-        service.aacpManager.registerControlCommandListener(controlCommandIdentifier, listener)
-    }
-    DisposableEffect(Unit) {
-        onDispose {
-            service.aacpManager.unregisterControlCommandListener(controlCommandIdentifier, listener)
-        }
-    }
-
-    if (independent) {
-        Column(modifier = Modifier.padding(vertical = 8.dp)) {
-            if (title != null) {
-                Text(
-                    text = title,
-                    style = TextStyle(
-                        fontSize = 14.sp,
-                        fontWeight = FontWeight.Bold,
-                        color = textColor.copy(alpha = 0.6f)
-                    ),
-                    modifier = Modifier.padding(start = 16.dp, end = 16.dp, top = 8.dp, bottom = 4.dp)
-                )
-            }
-            Box(
-                modifier = Modifier
-                    .background(animatedBackgroundColor, RoundedCornerShape(28.dp))
-                    .padding(4.dp)
-                    .pointerInput(Unit) {
-                        detectTapGestures(
-                            onPress = {
-                                backgroundColor =
-                                    if (isDarkTheme) Color(0x40888888) else Color(0x40D9D9D9)
-                                tryAwaitRelease()
-                                backgroundColor =
-                                    if (isDarkTheme) Color(0xFF1C1C1E) else Color(0xFFFFFFFF)
-                            },
-                            onTap = {
-                                if (enabled) {
-                                    checked = !checked
-                                    cb()
-                                }
-                            }
-                        )
-                    }
-            ) {
-                Row(
-                    modifier = Modifier
-                        .fillMaxWidth()
-                        .height(55.dp)
-                        .padding(horizontal = 12.dp),
-                    verticalAlignment = Alignment.CenterVertically
-                ) {
-                    Text(
-                        text = label,
-                        modifier = Modifier.weight(1f),
-                        style = TextStyle(
-                            fontSize = 16.sp,
-                            fontFamily = FontFamily(Font(R.font.sf_pro)),
-                            fontWeight = FontWeight.Normal,
-                            color = textColor
-                        )
-                    )
-                    StyledSwitch(
-                        checked = checked,
-                        enabled = enabled,
-                        onCheckedChange = {
-                            if (enabled) {
-                                checked = it
-                                cb()
-                            }
-                        }
-                    )
-                }
-            }
-            if (description != null) {
-                Spacer(modifier = Modifier.height(8.dp))
-                Box(
-                    modifier = Modifier
-                        .padding(horizontal = 16.dp)
-                        .background(if (isDarkTheme) Color(0xFF000000) else Color(0xFFF2F2F7))
-                ) {
-                    Text(
-                        text = description,
-                        style = TextStyle(
-                            fontSize = 12.sp,
-                            fontWeight = FontWeight.Light,
-                            color = textColor.copy(alpha = 0.6f),
-                            fontFamily = FontFamily(Font(R.font.sf_pro))
-                        )
-                    )
-                }
-            }
-        }
-    } else {
-        val isPressed = remember { mutableStateOf(false) }
-        Row(
-            modifier = Modifier
-                .fillMaxWidth()
-                .background(
-                    shape = RoundedCornerShape(28.dp),
-                    color = if (isPressed.value) Color(0xFFE0E0E0) else Color.Transparent
-                )
-                .padding(16.dp)
-                .pointerInput(Unit) {
-                    detectTapGestures(
-                        onPress = {
-                            isPressed.value = true
-                            tryAwaitRelease()
-                            isPressed.value = false
-                        }
-                    )
-                }
-                .clickable(
-                    indication = null,
-                    interactionSource = remember { MutableInteractionSource() }
-                ) {
-                    if (enabled) {
-                        checked = !checked
-                        cb()
-                    }
-                },
-            verticalAlignment = Alignment.CenterVertically
-        ) {
-            Column(
-                modifier = Modifier
-                    .weight(1f)
-                    .padding(end = 4.dp)
-            ) {
-                Text(
-                    text = label,
-                    style = TextStyle(
-                        fontSize = 16.sp,
-                        fontFamily = FontFamily(Font(R.font.sf_pro)),
-                        fontWeight = FontWeight.Normal,
-                        color = textColor
-                    )
-                )
-                Spacer(modifier = Modifier.height(4.dp))
-                if (description != null) {
-                    Text(
-                        text = description,
-                        style = TextStyle(
-                            fontSize = 12.sp,
-                            color = textColor.copy(0.6f),
-                            fontFamily = FontFamily(Font(R.font.sf_pro)),
-                        )
-                    )
-                }
-            }
-            StyledSwitch(
-                checked = checked,
-                enabled = enabled,
-                onCheckedChange = {
-                    if (enabled) {
-                        checked = it
-                        cb()
-                    }
-                }
-            )
-        }
-    }
-}
-
-@Composable
-fun StyledToggle(
-    title: String? = null,
-    label: String,
-    description: String? = null,
-    attHandle: ATTHandles,
-    independent: Boolean = true,
-    enabled: Boolean = true,
-    sharedPreferenceKey: String? = null,
-    sharedPreferences: SharedPreferences? = null,
-    onCheckedChange: ((Boolean) -> Unit)? = null,
-) {
-    val attManager = ServiceManager.getService()?.attManager ?: return
-    val isDarkTheme = isSystemInDarkTheme()
-    val textColor = if (isDarkTheme) Color.White else Color.Black
-    val checkedValue = try {
-        attManager.read(attHandle).getOrNull(0)?.toInt()
-    } catch (e: Exception) {
-        Log.w("StyledToggle", "Error reading initial value for $label: ${e.message}")
-        null
-    } ?: 0
-    var checked by remember { mutableStateOf(checkedValue !=0) }
-    var backgroundColor by remember { mutableStateOf(if (isDarkTheme) Color(0xFF1C1C1E) else Color(0xFFFFFFFF)) }
-    val animatedBackgroundColor by animateColorAsState(targetValue = backgroundColor, animationSpec = tween(durationMillis = 500))
-
-    attManager.enableNotifications(attHandle)
-
-    if (sharedPreferenceKey != null && sharedPreferences != null) {
-        checked = sharedPreferences.getBoolean(sharedPreferenceKey, checked)
-    }
-
-    fun cb() {
-        if (sharedPreferences != null) {
-            if (sharedPreferenceKey == null) {
-                Log.e("StyledToggle", "SharedPreferenceKey is null but SharedPreferences is provided.")
-                return
-            }
-            sharedPreferences.edit { putBoolean(sharedPreferenceKey, checked) }
-        }
-        onCheckedChange?.invoke(checked)
-    }
-
-    LaunchedEffect(checked) {
-        if (attManager.socket?.isConnected != true) return@LaunchedEffect
-        attManager.write(attHandle, if (checked) byteArrayOf(1) else byteArrayOf(0))
-    }
-
-    val listener = remember {
-        object : (ByteArray) -> Unit {
-            override fun invoke(value: ByteArray) {
-                if (value.isNotEmpty()) {
-                    checked = value[0].toInt() != 0
-                    Log.d("StyledToggle", "Updated from notification for $label: enabled=$checked")
-                } else {
-                    Log.w("StyledToggle", "Empty value in notification for $label")
-                }
-            }
-        }
-    }
-
-    LaunchedEffect(Unit) {
-        attManager.registerListener(attHandle, listener)
-    }
-
-    DisposableEffect(Unit) {
-        onDispose {
-            attManager.unregisterListener(attHandle, listener)
-        }
-    }
-
-    if (independent) {
-        Column(modifier = Modifier.padding(vertical = 8.dp)) {
-            if (title != null) {
-                Text(
-                    text = title,
-                    style = TextStyle(
-                        fontSize = 14.sp,
-                        fontWeight = FontWeight.Bold,
-                        color = textColor.copy(alpha = 0.6f)
-                    ),
-                    modifier = Modifier.padding(start = 16.dp, end = 16.dp, top = 8.dp, bottom = 4.dp)
-                )
-            }
-            Box(
-                modifier = Modifier
-                    .background(animatedBackgroundColor, RoundedCornerShape(28.dp))
-                    .padding(4.dp)
-                    .pointerInput(Unit) {
-                        detectTapGestures(
-                            onPress = {
-                                backgroundColor =
-                                    if (isDarkTheme) Color(0x40888888) else Color(0x40D9D9D9)
-                                tryAwaitRelease()
-                                backgroundColor =
-                                    if (isDarkTheme) Color(0xFF1C1C1E) else Color(0xFFFFFFFF)
-                            },
-                            onTap = {
-                                if (enabled) {
-                                    checked = !checked
-                                    cb()
-                                }
-                            }
-                        )
-                    }
-            ) {
-                Row(
-                    modifier = Modifier
-                        .fillMaxWidth()
-                        .height(55.dp)
-                        .padding(horizontal = 12.dp),
-                    verticalAlignment = Alignment.CenterVertically
-                ) {
-                    Text(
-                        text = label,
-                        modifier = Modifier.weight(1f),
-                        style = TextStyle(
-                            fontSize = 16.sp,
-                            fontFamily = FontFamily(Font(R.font.sf_pro)),
-                            fontWeight = FontWeight.Normal,
-                            color = textColor
-                        )
-                    )
-                    StyledSwitch(
-                        checked = checked,
-                        enabled = enabled,
-                        onCheckedChange = {
-                            if (enabled) {
-                                checked = it
-                                cb()
-                            }
-                        }
-                    )
-                }
-            }
-            if (description != null) {
-                Spacer(modifier = Modifier.height(8.dp))
-                Box(
-                    modifier = Modifier
-                        .padding(horizontal = 16.dp)
-                        .background(if (isDarkTheme) Color(0xFF000000) else Color(0xFFF2F2F7))
-                ) {
-                    Text(
-                        text = description,
-                        style = TextStyle(
-                            fontSize = 12.sp,
-                            fontWeight = FontWeight.Light,
-                            color = textColor.copy(alpha = 0.6f),
-                            fontFamily = FontFamily(Font(R.font.sf_pro))
-                        )
-                    )
-                }
-            }
-        }
-    } else {
-        val isPressed = remember { mutableStateOf(false) }
-        Row(
-            modifier = Modifier
-                .fillMaxWidth()
-                .background(
-                    shape = RoundedCornerShape(28.dp),
-                    color = if (isPressed.value) Color(0xFFE0E0E0) else Color.Transparent
-                )
-                .padding(16.dp)
-                .pointerInput(Unit) {
-                    detectTapGestures(
-                        onPress = {
-                            isPressed.value = true
-                            tryAwaitRelease()
-                            isPressed.value = false
-                        }
-                    )
-                }
-                .clickable(
-                    indication = null,
-                    interactionSource = remember { MutableInteractionSource() }
-                ) {
-                    if (enabled) {
-                        checked = !checked
-                        cb()
-                    }
-                },
-            verticalAlignment = Alignment.CenterVertically
-        ) {
-            Column(
-                modifier = Modifier
-                    .weight(1f)
-                    .padding(end = 4.dp)
-            ) {
-                Text(
-                    text = label,
-                    fontSize = 16.sp,
-                    color = textColor
-                )
-                Spacer(modifier = Modifier.height(4.dp))
-                if (description != null) {
-                    Text(
-                        text = description,
-                        fontSize = 12.sp,
-                        color = textColor.copy(0.6f),
-                        lineHeight = 14.sp,
-                    )
-                }
-            }
-            StyledSwitch(
-                checked = checked,
-                enabled = enabled,
-                onCheckedChange = {
-                    if (enabled) {
-                        checked = it
-                        cb()
-                    }
-                }
-            )
-        }
-    }
-}
-
-@Preview
-@Composable
-fun StyledTogglePreview() {
-    val context = LocalContext.current
-    val sharedPrefs = context.getSharedPreferences("preview", 0)
-    StyledToggle(
-        label = "Example Toggle",
-        description = "This is an example description for the styled toggle.",
-        sharedPreferences = sharedPrefs
-    )
-}

android/app/src/main/java/me/kavishdevar/librepods/data/AirPods.kt

@@ -16,10 +16,8 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-package me.kavishdevar.librepods.utils
+package me.kavishdevar.librepods.data
 
-import me.kavishdevar.librepods.utils.AACPManager
-import me.kavishdevar.librepods.utils.ATTManager
 import me.kavishdevar.librepods.R
 
 open class AirPodsBase(
@@ -52,33 +50,48 @@ enum class Capability {
 class AirPods: AirPodsBase(
     modelNumber = listOf("A1523", "A1722"),
     name = "AirPods 1",
-    budCaseRes = R.drawable.airpods_1,
-    budsRes = R.drawable.airpods_1_buds,
-    leftBudsRes = R.drawable.airpods_1_left,
-    rightBudsRes = R.drawable.airpods_1_right,
-    caseRes = R.drawable.airpods_1_case,
+    // budCaseRes = R.drawable.airpods_1
+    budCaseRes = R.drawable.airpods_pro_2,
+    // budsRes = R.drawable.airpods_1_buds
+    budsRes = R.drawable.airpods_pro_2_buds,
+    // leftBudsRes = R.drawable.airpods_1_left
+    leftBudsRes = R.drawable.airpods_pro_2_left,
+    // rightBudsRes = R.drawable.airpods_1_right
+    rightBudsRes = R.drawable.airpods_pro_2_right,
+    // caseRes = R.drawable.airpods_1_case
+    caseRes = R.drawable.airpods_pro_2_case,
     capabilities = emptySet()
 )
 
 class AirPods2: AirPodsBase(
     modelNumber = listOf("A2032", "A2031"),
     name = "AirPods 2",
-    budCaseRes = R.drawable.airpods_2,
-    budsRes = R.drawable.airpods_2_buds,
-    leftBudsRes = R.drawable.airpods_2_left,
-    rightBudsRes = R.drawable.airpods_2_right,
-    caseRes = R.drawable.airpods_2_case,
+    // budCaseRes = R.drawable.airpods_2
+    budCaseRes = R.drawable.airpods_pro_2,
+    // budsRes = R.drawable.airpods_2_buds
+    budsRes = R.drawable.airpods_pro_2_buds,
+    // leftBudsRes = R.drawable.airpods_2_left
+    leftBudsRes = R.drawable.airpods_pro_2_left,
+    // rightBudsRes = R.drawable.airpods_2_right
+    rightBudsRes = R.drawable.airpods_pro_2_right,
+    // caseRes = R.drawable.airpods_2_case
+    caseRes = R.drawable.airpods_pro_2_case,
     capabilities = emptySet()
 )
 
 class AirPods3: AirPodsBase(
     modelNumber = listOf("A2565", "A2564"),
     name = "AirPods 3",
-    budCaseRes = R.drawable.airpods_3,
-    budsRes = R.drawable.airpods_3_buds,
-    leftBudsRes = R.drawable.airpods_3_left,
-    rightBudsRes = R.drawable.airpods_3_right,
-    caseRes = R.drawable.airpods_3_case,
+    // budCaseRes = R.drawable.airpods_3
+    budCaseRes = R.drawable.airpods_pro_2,
+    // budsRes = R.drawable.airpods_3_buds
+    budsRes = R.drawable.airpods_pro_2_buds,
+    // leftBudsRes = R.drawable.airpods_3_left
+    leftBudsRes = R.drawable.airpods_pro_2_left,
+    // rightBudsRes = R.drawable.airpods_3_right
+    rightBudsRes = R.drawable.airpods_pro_2_right,
+    // caseRes = R.drawable.airpods_3_case
+    caseRes = R.drawable.airpods_pro_2_case,
     capabilities = setOf(
         Capability.HEAD_GESTURES
     )
@@ -87,11 +100,16 @@ class AirPods3: AirPodsBase(
 class AirPods4: AirPodsBase(
     modelNumber = listOf("A3053", "A3050", "A3054"),
     name = "AirPods 4",
-    budCaseRes = R.drawable.airpods_4,
-    budsRes = R.drawable.airpods_4_buds,
-    leftBudsRes = R.drawable.airpods_4_left,
-    rightBudsRes = R.drawable.airpods_4_right,
-    caseRes = R.drawable.airpods_4_case,
+    // budCaseRes = R.drawable.airpods_4
+    budCaseRes = R.drawable.airpods_pro_2,
+    // budsRes = R.drawable.airpods_4_buds
+    budsRes = R.drawable.airpods_pro_2_buds,
+    // leftBudsRes = R.drawable.airpods_4_left
+    leftBudsRes = R.drawable.airpods_pro_2_left,
+    // rightBudsRes = R.drawable.airpods_4_right
+    rightBudsRes = R.drawable.airpods_pro_2_right,
+    // caseRes = R.drawable.airpods_4_case
+    caseRes = R.drawable.airpods_pro_2_case,
     capabilities = setOf(
         Capability.HEAD_GESTURES,
         Capability.SLEEP_DETECTION,
@@ -102,18 +120,24 @@ class AirPods4: AirPodsBase(
 class AirPods4ANC: AirPodsBase(
     modelNumber = listOf("A3056", "A3055", "A3057"),
     name = "AirPods 4 (ANC)",
-    budCaseRes = R.drawable.airpods_4,
-    budsRes = R.drawable.airpods_4_buds,
-    leftBudsRes = R.drawable.airpods_4_left,
-    rightBudsRes = R.drawable.airpods_4_right,
-    caseRes = R.drawable.airpods_4_case,
+    // budCaseRes = R.drawable.airpods_4
+    budCaseRes = R.drawable.airpods_pro_2,
+    // budsRes = R.drawable.airpods_4_buds
+    budsRes = R.drawable.airpods_pro_2_buds,
+    // leftBudsRes = R.drawable.airpods_4_left
+    leftBudsRes = R.drawable.airpods_pro_2_left,
+    // rightBudsRes = R.drawable.airpods_4_right
+    rightBudsRes = R.drawable.airpods_pro_2_right,
+    // caseRes = R.drawable.airpods_4_case
+    caseRes = R.drawable.airpods_pro_2_case,
     capabilities = setOf(
         Capability.LISTENING_MODE,
         Capability.CONVERSATION_AWARENESS,
         Capability.HEAD_GESTURES,
         Capability.ADAPTIVE_AUDIO,
         Capability.SLEEP_DETECTION,
-        Capability.ADAPTIVE_VOLUME
+        Capability.ADAPTIVE_VOLUME,
+        Capability.STEM_CONFIG
     )
 )
 
@@ -121,11 +145,16 @@ class AirPodsPro1: AirPodsBase(
     modelNumber = listOf("A2084", "A2083"),
     name = "AirPods Pro 1",
     displayName = "AirPods Pro",
-    budCaseRes = R.drawable.airpods_pro_1,
-    budsRes = R.drawable.airpods_pro_1_buds,
-    leftBudsRes = R.drawable.airpods_pro_1_left,
-    rightBudsRes = R.drawable.airpods_pro_1_right,
-    caseRes = R.drawable.airpods_pro_1_case,
+    // budCaseRes = R.drawable.airpods_pro_1
+    budCaseRes = R.drawable.airpods_pro_2,
+    // budsRes = R.drawable.airpods_pro_1_buds
+    budsRes = R.drawable.airpods_pro_2_buds,
+    // leftBudsRes = R.drawable.airpods_pro_1_left
+    leftBudsRes = R.drawable.airpods_pro_2_left,
+    // rightBudsRes = R.drawable.airpods_pro_1_right
+    rightBudsRes = R.drawable.airpods_pro_2_right,
+    // caseRes = R.drawable.airpods_pro_1_case
+    caseRes = R.drawable.airpods_pro_2_case,
     capabilities = setOf(
         Capability.LISTENING_MODE
     )
@@ -135,10 +164,15 @@ class AirPodsPro2Lightning: AirPodsBase(
     modelNumber = listOf("A2931", "A2699", "A2698"),
     name = "AirPods Pro 2 with Magsafe Charging Case (Lightning)",
     displayName = "AirPods Pro",
+    // budCaseRes = R.drawable.airpods_pro_2
     budCaseRes = R.drawable.airpods_pro_2,
+    // budsRes = R.drawable.airpods_pro_2_buds
     budsRes = R.drawable.airpods_pro_2_buds,
+    // leftBudsRes = R.drawable.airpods_pro_2_left
     leftBudsRes = R.drawable.airpods_pro_2_left,
+    // rightBudsRes = R.drawable.airpods_pro_2_right
     rightBudsRes = R.drawable.airpods_pro_2_right,
+    // caseRes = R.drawable.airpods_pro_2_case
     caseRes = R.drawable.airpods_pro_2_case,
     capabilities = setOf(
         Capability.LISTENING_MODE,
@@ -158,10 +192,15 @@ class AirPodsPro2USBC: AirPodsBase(
     modelNumber = listOf("A3047", "A3048", "A3049"),
     name = "AirPods Pro 2 with Magsafe Charging Case (USB-C)",
     displayName = "AirPods Pro",
+    // budCaseRes = R.drawable.airpods_pro_2
     budCaseRes = R.drawable.airpods_pro_2,
+    // budsRes = R.drawable.airpods_pro_2_buds
     budsRes = R.drawable.airpods_pro_2_buds,
+    // leftBudsRes = R.drawable.airpods_pro_2_left
     leftBudsRes = R.drawable.airpods_pro_2_left,
+    // rightBudsRes = R.drawable.airpods_pro_2_right
     rightBudsRes = R.drawable.airpods_pro_2_right,
+    // caseRes = R.drawable.airpods_pro_2_case
     caseRes = R.drawable.airpods_pro_2_case,
     capabilities = setOf(
         Capability.LISTENING_MODE,
@@ -181,11 +220,16 @@ class AirPodsPro3: AirPodsBase(
     modelNumber = listOf("A3063", "A3064", "A3065"),
     name = "AirPods Pro 3",
     displayName = "AirPods Pro",
-    budCaseRes = R.drawable.airpods_pro_3,
-    budsRes = R.drawable.airpods_pro_3_buds,
-    leftBudsRes = R.drawable.airpods_pro_3_left,
-    rightBudsRes = R.drawable.airpods_pro_3_right,
-    caseRes = R.drawable.airpods_pro_3_case,
+    // budCaseRes = R.drawable.airpods_pro_3
+    budCaseRes = R.drawable.airpods_pro_2,
+    // budsRes = R.drawable.airpods_pro_3_buds
+    budsRes = R.drawable.airpods_pro_2_buds,
+    // leftBudsRes = R.drawable.airpods_pro_3_left
+    leftBudsRes = R.drawable.airpods_pro_2_left,
+    // rightBudsRes = R.drawable.airpods_pro_3_right
+    rightBudsRes = R.drawable.airpods_pro_2_right,
+    // caseRes = R.drawable.airpods_pro_3_case
+    caseRes = R.drawable.airpods_pro_2_case,
     capabilities = setOf(
         Capability.LISTENING_MODE,
         Capability.CONVERSATION_AWARENESS,
@@ -212,8 +256,6 @@ data class AirPodsInstance(
     val version1: String?,
     val version2: String?,
     val version3: String?,
-    val aacpManager: AACPManager,
-    val attManager: ATTManager?
 )
 
 object AirPodsModels {

android/app/src/main/java/me/kavishdevar/librepods/data/ControlCommandRepository.kt

@@ -0,0 +1,70 @@
+/*
+    LibrePods - AirPods liberated from Apple’s ecosystem
+    Copyright (C) 2025 LibrePods contributors
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+package me.kavishdevar.librepods.data
+
+import me.kavishdevar.librepods.bluetooth.AACPManager
+import me.kavishdevar.librepods.bluetooth.AACPManager.Companion.ControlCommandIdentifiers
+
+class ControlCommandRepository(
+    private val aacpManager: AACPManager
+) {
+    fun getValue(
+        identifier: ControlCommandIdentifiers
+    ): ByteArray? {
+        return aacpManager.controlCommandStatusList
+            .find { it.identifier == identifier }
+            ?.value
+    }
+
+    fun setValue(
+        id: ControlCommandIdentifiers,
+        value: ByteArray
+    ) {
+        aacpManager.sendControlCommand(id.value, value)
+    }
+
+
+    fun observe(
+        identifier: ControlCommandIdentifiers,
+        onChange: (ByteArray) -> Unit
+    ): AACPManager.ControlCommandListener {
+
+        val listener = object : AACPManager.ControlCommandListener {
+            override fun onControlCommandReceived(controlCommand: AACPManager.ControlCommand) {
+                onChange(controlCommand.value)
+            }
+        }
+
+        aacpManager.registerControlCommandListener(identifier, listener)
+        return listener
+    }
+
+    fun remove(
+        identifier: ControlCommandIdentifiers,
+        listener: AACPManager.ControlCommandListener
+    ) {
+        aacpManager.unregisterControlCommandListener(identifier, listener)
+    }
+
+    fun getMap(): Map<ControlCommandIdentifiers, ByteArray> {
+        return aacpManager.controlCommandStatusList.associate {
+            it.identifier to it.value
+        }
+    }
+}

android/app/src/main/java/me/kavishdevar/librepods/data/HearingAid.kt

@@ -16,7 +16,7 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-package me.kavishdevar.librepods.utils
+package me.kavishdevar.librepods.data
 
 import android.util.Log
 import androidx.compose.runtime.MutableState
@@ -25,6 +25,8 @@ import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
+import me.kavishdevar.librepods.bluetooth.ATTHandles
+import me.kavishdevar.librepods.bluetooth.ATTManager
 import java.io.IOException
 import java.nio.ByteBuffer
 import java.nio.ByteOrder

android/app/src/main/java/me/kavishdevar/librepods/data/Packets.kt

@@ -16,7 +16,7 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-package me.kavishdevar.librepods.constants
+package me.kavishdevar.librepods.data
 
 import android.os.Parcelable
 import android.util.Log
@@ -40,6 +40,7 @@ object BatteryStatus {
     const val CHARGING = 1
     const val NOT_CHARGING = 2
     const val DISCONNECTED = 4
+    const val OPTIMIZED_CHARGING = 5
 }
 
 @Parcelize
@@ -58,6 +59,7 @@ data class Battery(val component: Int, val level: Int, val status: Int) : Parcel
             BatteryStatus.CHARGING -> "CHARGING"
             BatteryStatus.NOT_CHARGING -> "NOT_CHARGING"
             BatteryStatus.DISCONNECTED -> "DISCONNECTED"
+            BatteryStatus.OPTIMIZED_CHARGING -> "OPTIMIZED_CHARGING"
             else -> null
         }
     }
@@ -70,6 +72,7 @@ enum class NoiseControlMode {
 class AirPodsNotifications {
     companion object {
         const val AIRPODS_CONNECTED = "me.kavishdevar.librepods.AIRPODS_CONNECTED"
+        const val AIRPODS_L2CAP_CONNECTED = "me.kavishdevar.librepods.AIRPODS_CONNECTED"
         const val AIRPODS_DATA = "me.kavishdevar.librepods.AIRPODS_DATA"
         const val EAR_DETECTION_DATA = "me.kavishdevar.librepods.EAR_DETECTION_DATA"
         const val ANC_DATA = "me.kavishdevar.librepods.ANC_DATA"
@@ -78,6 +81,8 @@ class AirPodsNotifications {
         const val AIRPODS_DISCONNECTED = "me.kavishdevar.librepods.AIRPODS_DISCONNECTED"
         const val AIRPODS_CONNECTION_DETECTED = "me.kavishdevar.librepods.AIRPODS_CONNECTION_DETECTED"
         const val DISCONNECT_RECEIVERS = "me.kavishdevar.librepods.DISCONNECT_RECEIVERS"
+        const val EQ_DATA = "me.kavishdevar.librepods.EQ_DATA"
+        const val AIRPODS_INFORMATION_UPDATED = "me.kavishdevar.librepods.AIRPODS_INFORMATION_UPDATED"
     }
 
     class EarDetection {

android/app/src/main/java/me/kavishdevar/librepods/data/StemAction.kt

@@ -16,9 +16,9 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-package me.kavishdevar.librepods.constants
+package me.kavishdevar.librepods.data
 
-import me.kavishdevar.librepods.utils.AACPManager
+import me.kavishdevar.librepods.bluetooth.AACPManager
 
 enum class StemAction {
     PLAY_PAUSE,

android/app/src/main/java/me/kavishdevar/librepods/data/Transparency.kt

@@ -16,13 +16,14 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-package me.kavishdevar.librepods.utils
+package me.kavishdevar.librepods.data
 
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
+import me.kavishdevar.librepods.bluetooth.ATTHandles
 import java.io.IOException
 import java.nio.ByteBuffer
 import java.nio.ByteOrder
@@ -139,7 +140,7 @@ fun parseTransparencySettingsResponse(data: ByteArray): TransparencySettings {
 
 private var debounceJob: Job? = null
 
-fun sendTransparencySettings(attManager: ATTManager, transparencySettings: TransparencySettings) {
+fun sendTransparencySettings(writer: (ATTHandles, ByteArray) -> Unit, transparencySettings: TransparencySettings) {
     debounceJob?.cancel()
     debounceJob = CoroutineScope(Dispatchers.IO).launch {
         delay(100)
@@ -171,7 +172,7 @@ fun sendTransparencySettings(attManager: ATTManager, transparencySettings: Trans
             }
 
             val data = buffer.array()
-            attManager.write(ATTHandles.TRANSPARENCY, value = data)
+            writer(ATTHandles.TRANSPARENCY, data)
         } catch (e: IOException) {
             e.printStackTrace()
         }

android/app/src/main/java/me/kavishdevar/librepods/data/XposedRemotePref.kt

@@ -0,0 +1,8 @@
+package me.kavishdevar.librepods.data
+
+interface XposedRemotePref {
+    fun isAvailable(): Boolean
+
+    fun getBoolean(key: String, def: Boolean): Boolean
+    fun putBoolean(key: String, value: Boolean)
+}

android/app/src/main/java/me/kavishdevar/librepods/data/XposedRemotePrefImpl.kt

@@ -0,0 +1,21 @@
+package me.kavishdevar.librepods.data
+
+import androidx.core.content.edit
+import me.kavishdevar.librepods.utils.XposedServiceHolder
+
+class XposedRemotePrefImpl: XposedRemotePref {
+    override fun isAvailable(): Boolean {
+        return XposedServiceHolder.service != null
+    }
+
+    override fun getBoolean(key: String, def: Boolean): Boolean {
+        val s = XposedServiceHolder.service ?: return def
+        return s.getRemotePreferences("me.kavishdevar.librepods").getBoolean(key, def)
+    }
+
+    override fun putBoolean(key: String, value: Boolean) {
+        val s = XposedServiceHolder.service ?: return
+        s.getRemotePreferences("me.kavishdevar.librepods")
+            .edit { putBoolean(key, value) }
+    }
+}

android/app/src/main/java/me/kavishdevar/librepods/data/XposedRemotePrefProvider.kt

@@ -0,0 +1,5 @@
+package me.kavishdevar.librepods.data
+
+object XposedRemotePrefProvider {
+    fun create(): XposedRemotePref = XposedRemotePrefImpl()
+}

android/app/src/main/java/me/kavishdevar/librepods/presentation/components/AboutCard.kt

@@ -18,12 +18,12 @@
 
 @file:OptIn(ExperimentalEncodingApi::class)
 
-package me.kavishdevar.librepods.composables
+package me.kavishdevar.librepods.presentation.components
 
 import androidx.compose.foundation.background
 import androidx.compose.foundation.clickable
-import androidx.compose.foundation.isSystemInDarkTheme
 import androidx.compose.foundation.interaction.MutableInteractionSource
+import androidx.compose.foundation.isSystemInDarkTheme
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
@@ -34,35 +34,35 @@ import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material3.HorizontalDivider
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.mutableIntStateOf
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
 import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.layout.onGloballyPositioned
 import androidx.compose.ui.platform.LocalDensity
+import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.TextStyle
 import androidx.compose.ui.text.font.Font
 import androidx.compose.ui.text.font.FontFamily
 import androidx.compose.ui.text.font.FontWeight
-import androidx.compose.ui.unit.Dp
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import androidx.navigation.NavController
 import me.kavishdevar.librepods.R
-import me.kavishdevar.librepods.composables.NavigationButton
-import me.kavishdevar.librepods.services.ServiceManager
 import kotlin.io.encoding.ExperimentalEncodingApi
 
 @Composable
-fun AboutCard(navController: NavController) {
+fun AboutCard(
+    navController: NavController,
+    modelName: String,
+    actualModel: String,
+    serialNumbers: List<String>,
+    version: String?
+) {
     val isDarkTheme = isSystemInDarkTheme()
     val textColor = if (isDarkTheme) Color.White else Color.Black
-    val service = ServiceManager.getService()
-    if (service == null) return
-    val airpodsInstance = service.airpodsInstance
-    if (airpodsInstance == null) return
     val backgroundColor = if (isDarkTheme) Color(0xFF1C1C1E) else Color(0xFFFFFFFF)
 
     Box(
@@ -75,7 +75,8 @@ fun AboutCard(navController: NavController) {
             style = TextStyle(
                 fontSize = 14.sp,
                 fontWeight = FontWeight.Bold,
-                color = textColor.copy(alpha = 0.6f)
+                color = textColor.copy(alpha = 0.6f),
+                fontFamily = FontFamily(Font(R.font.sf_pro))
             )
         )
     }
@@ -108,7 +109,7 @@ fun AboutCard(navController: NavController) {
                 )
             )
             Text(
-                text = airpodsInstance.model.displayName,
+                text = modelName,
                 style = TextStyle(
                     fontSize = 16.sp,
                     color = if (isDarkTheme) Color.White.copy(alpha = 0.6f) else Color.Black.copy(alpha = 0.8f),
@@ -137,7 +138,7 @@ fun AboutCard(navController: NavController) {
                 )
             )
             Text(
-                text = airpodsInstance.actualModelNumber,
+                text = actualModel,
                 style = TextStyle(
                     fontSize = 16.sp,
                     color = if (isDarkTheme) Color.White.copy(alpha = 0.6f) else Color.Black.copy(alpha = 0.8f),
@@ -152,11 +153,11 @@ fun AboutCard(navController: NavController) {
                 .padding(horizontal = 12.dp)
         )
         val serialNumbers = listOf(
-            airpodsInstance.serialNumber?: "",
-            "􀀛 ${airpodsInstance.leftSerialNumber}",
-            "􀀧 ${airpodsInstance.rightSerialNumber}"
+            serialNumbers[0],
+            "􀀛 ${serialNumbers[1]}",
+            "􀀧 ${serialNumbers[2]}"
         )
-        val serialNumber = remember { mutableStateOf(0) }
+        val serialNumber = remember { mutableIntStateOf(0) }
         Row(
             modifier = Modifier
                 .fillMaxWidth()
@@ -172,7 +173,7 @@ fun AboutCard(navController: NavController) {
                 ),
             )
             Text(
-                text = serialNumbers[serialNumber.value],
+                text = serialNumbers[serialNumber.intValue],
                 style = TextStyle(
                     fontSize = 16.sp,
                     color = if (isDarkTheme) Color.White.copy(alpha = 0.6f) else Color.Black.copy(alpha = 0.8f),
@@ -183,7 +184,7 @@ fun AboutCard(navController: NavController) {
                         interactionSource = remember { MutableInteractionSource() },
                         indication = null
                     ) {
-                        serialNumber.value = (serialNumber.value + 1) % serialNumbers.size
+                        serialNumber.intValue = (serialNumber.intValue + 1) % serialNumbers.size
                     }
             )
         }
@@ -197,9 +198,9 @@ fun AboutCard(navController: NavController) {
             to = "version_info",
             navController = navController,
             name = stringResource(R.string.version),
-            currentState = airpodsInstance.version3,
+            currentState = version,
             independent = false,
             height = rowHeight.value + 32.dp
         )
     }
-}
+}

android/app/src/main/java/me/kavishdevar/librepods/presentation/components/AppInfoCard.kt

@@ -0,0 +1,193 @@
+/*
+    LibrePods - AirPods liberated from Apple’s ecosystem
+    Copyright (C) 2025 LibrePods contributors
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+package me.kavishdevar.librepods.presentation.components
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.HorizontalDivider
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.layout.onGloballyPositioned
+import androidx.compose.ui.platform.LocalDensity
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.Font
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import me.kavishdevar.librepods.BuildConfig
+import me.kavishdevar.librepods.R
+
+@Composable
+fun AppInfoCard() {
+    val rowHeight = remember { mutableStateOf(0.dp) }
+    val density = LocalDensity.current
+    val isDarkTheme = isSystemInDarkTheme()
+    val backgroundColor = if (isDarkTheme) Color(0xFF1C1C1E) else Color(0xFFFFFFFF)
+    val textColor = if (isDarkTheme) Color.White else Color.Black
+
+    Column {
+        Box(
+            modifier = Modifier
+                .background(if (isDarkTheme) Color.Black else Color(0xFFF2F2F7))
+                .padding(start = 16.dp, bottom = 8.dp, end = 4.dp)
+        ) {
+            Text(
+                text = stringResource(R.string.about), style = TextStyle(
+                    fontSize = 14.sp,
+                    fontWeight = FontWeight.Bold,
+                    color = textColor.copy(alpha = 0.6f),
+                    fontFamily = FontFamily(Font(R.font.sf_pro))
+                )
+            )
+        }
+
+        Column(
+            modifier = Modifier
+                .clip(RoundedCornerShape(28.dp))
+                .fillMaxWidth()
+                .background(backgroundColor, RoundedCornerShape(28.dp))
+        ) {
+            Row(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(16.dp)
+                    .onGloballyPositioned { coordinates ->
+                        rowHeight.value = with(density) { coordinates.size.height.toDp() }
+                    },
+                horizontalArrangement = Arrangement.SpaceBetween,
+            ) {
+                Text(
+                    text = stringResource(R.string.version), style = TextStyle(
+                        fontSize = 16.sp,
+                        color = textColor,
+                        fontFamily = FontFamily(Font(R.font.sf_pro))
+                    )
+                )
+                Text(
+                    text = BuildConfig.VERSION_NAME, style = TextStyle(
+                        fontSize = 16.sp,
+                        color = if (isDarkTheme) Color.White.copy(alpha = 0.6f) else Color.Black.copy(
+                            alpha = 0.8f
+                        ),
+                        fontFamily = FontFamily(Font(R.font.sf_pro))
+                    )
+                )
+            }
+            HorizontalDivider(
+                thickness = 1.dp,
+                color = Color(0x40888888),
+                modifier = Modifier.padding(horizontal = 12.dp)
+            )
+            Row(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(16.dp),
+                horizontalArrangement = Arrangement.SpaceBetween,
+            ) {
+                Text(
+                    text = stringResource(R.string.version_code), style = TextStyle(
+                        fontSize = 16.sp,
+                        color = textColor,
+                        fontFamily = FontFamily(Font(R.font.sf_pro))
+                    )
+                )
+                Text(
+                    text = BuildConfig.VERSION_CODE.toString(), style = TextStyle(
+                        fontSize = 16.sp,
+                        color = if (isDarkTheme) Color.White.copy(alpha = 0.6f) else Color.Black.copy(
+                            alpha = 0.8f
+                        ),
+                        fontFamily = FontFamily(Font(R.font.sf_pro))
+                    )
+                )
+            }
+            HorizontalDivider(
+                thickness = 1.dp,
+                color = Color(0x40888888),
+                modifier = Modifier.padding(horizontal = 12.dp)
+            )
+            Row(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(16.dp),
+                horizontalArrangement = Arrangement.SpaceBetween,
+            ) {
+                Text(
+                    text = stringResource(R.string.flavor), style = TextStyle(
+                        fontSize = 16.sp,
+                        color = textColor,
+                        fontFamily = FontFamily(Font(R.font.sf_pro))
+                    )
+                )
+                Text(
+                    text = BuildConfig.FLAVOR, style = TextStyle(
+                        fontSize = 16.sp,
+                        color = if (isDarkTheme) Color.White.copy(alpha = 0.6f) else Color.Black.copy(
+                            alpha = 0.8f
+                        ),
+                        fontFamily = FontFamily(Font(R.font.sf_pro))
+                    )
+                )
+            }
+            HorizontalDivider(
+                thickness = 1.dp,
+                color = Color(0x40888888),
+                modifier = Modifier.padding(horizontal = 12.dp)
+            )
+            Row(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(16.dp),
+                horizontalArrangement = Arrangement.SpaceBetween,
+            ) {
+                Text(
+                    text = stringResource(R.string.build_type), style = TextStyle(
+                        fontSize = 16.sp,
+                        color = textColor,
+                        fontFamily = FontFamily(Font(R.font.sf_pro))
+                    )
+                )
+                Text(
+                    text = BuildConfig.BUILD_TYPE,
+                    style = TextStyle(
+                        fontSize = 16.sp,
+                        color = if (isDarkTheme) Color.White.copy(alpha = 0.6f) else Color.Black.copy(
+                            alpha = 0.8f
+                        ),
+                        fontFamily = FontFamily(Font(R.font.sf_pro))
+                    )
+                )
+            }
+        }
+    }
+}

android/app/src/main/java/me/kavishdevar/librepods/presentation/components/AudioSettings.kt

@@ -18,7 +18,7 @@
 
 @file:OptIn(ExperimentalEncodingApi::class)
 
-package me.kavishdevar.librepods.composables
+package me.kavishdevar.librepods.presentation.components
 
 import androidx.compose.foundation.background
 import androidx.compose.foundation.isSystemInDarkTheme
@@ -35,6 +35,8 @@ import androidx.compose.ui.draw.clip
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.Font
+import androidx.compose.ui.text.font.FontFamily
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
@@ -42,25 +44,32 @@ import androidx.compose.ui.unit.sp
 import androidx.navigation.NavController
 import androidx.navigation.compose.rememberNavController
 import me.kavishdevar.librepods.R
-import me.kavishdevar.librepods.services.ServiceManager
-import me.kavishdevar.librepods.utils.AACPManager
-import me.kavishdevar.librepods.utils.ATTHandles
-import me.kavishdevar.librepods.utils.Capability
 import kotlin.io.encoding.ExperimentalEncodingApi
 
 @Composable
-fun AudioSettings(navController: NavController) {
+fun AudioSettings(
+    navController: NavController,
+    adaptiveVolumeCapability: Boolean,
+    conversationalAwarenessCapability: Boolean,
+    loudSoundReductionCapability: Boolean,
+    adaptiveAudioCapability: Boolean,
+
+    adaptiveVolumeChecked: Boolean,
+    onAdaptiveVolumeCheckedChange: (Boolean) -> Unit,
+
+    conversationalAwarenessChecked: Boolean,
+    onConversationalAwarenessCheckedChange: (Boolean) -> Unit,
+
+    loudSoundReductionChecked: Boolean,
+    onLoudSoundReductionCheckedChange: (Boolean) -> Unit,
+
+    vendorIdHook: Boolean,
+    isPremium: Boolean
+) {
     val isDarkTheme = isSystemInDarkTheme()
     val textColor = if (isDarkTheme) Color.White else Color.Black
-    val service = ServiceManager.getService()
-    if (service == null) return
-    val airpodsInstance = service.airpodsInstance
-    if (airpodsInstance == null) return
-    if (!airpodsInstance.model.capabilities.contains(Capability.ADAPTIVE_VOLUME) &&
-        !airpodsInstance.model.capabilities.contains(Capability.CONVERSATION_AWARENESS) &&
-        !airpodsInstance.model.capabilities.contains(Capability.LOUD_SOUND_REDUCTION) &&
-        !airpodsInstance.model.capabilities.contains(Capability.ADAPTIVE_AUDIO)
-    ) {
+
+    if (!adaptiveVolumeCapability && !conversationalAwarenessCapability && !loudSoundReductionCapability && !adaptiveAudioCapability) {
         return
     }
     Box(
@@ -73,7 +82,8 @@ fun AudioSettings(navController: NavController) {
             style = TextStyle(
                 fontSize = 14.sp,
                 fontWeight = FontWeight.Bold,
-                color = textColor.copy(alpha = 0.6f)
+                color = textColor.copy(alpha = 0.6f),
+                fontFamily = FontFamily(Font(R.font.sf_pro))
             )
         )
     }
@@ -88,12 +98,14 @@ fun AudioSettings(navController: NavController) {
             .padding(top = 2.dp)
     ) {
 
-        if (airpodsInstance.model.capabilities.contains(Capability.ADAPTIVE_VOLUME)) {
+        if (adaptiveVolumeCapability) {
             StyledToggle(
                 label = stringResource(R.string.personalized_volume),
                 description = stringResource(R.string.personalized_volume_description),
-                controlCommandIdentifier = AACPManager.Companion.ControlCommandIdentifiers.ADAPTIVE_VOLUME_CONFIG,
-                independent = false
+                independent = false,
+                checked = adaptiveVolumeChecked,
+                onCheckedChange = onAdaptiveVolumeCheckedChange,
+                enabled = isPremium
             )
 
             HorizontalDivider(
@@ -104,12 +116,14 @@ fun AudioSettings(navController: NavController) {
             )
         }
 
-        if (airpodsInstance.model.capabilities.contains(Capability.CONVERSATION_AWARENESS)) {
+        if (conversationalAwarenessCapability) {
             StyledToggle(
                 label = stringResource(R.string.conversational_awareness),
                 description = stringResource(R.string.conversational_awareness_description),
-                controlCommandIdentifier = AACPManager.Companion.ControlCommandIdentifiers.CONVERSATION_DETECT_CONFIG,
-                independent = false
+                independent = false,
+                checked = conversationalAwarenessChecked,
+                onCheckedChange = onConversationalAwarenessCheckedChange,
+                enabled = isPremium
             )
             HorizontalDivider(
                 thickness = 1.dp,
@@ -119,12 +133,14 @@ fun AudioSettings(navController: NavController) {
             )
         }
 
-        if (airpodsInstance.model.capabilities.contains(Capability.LOUD_SOUND_REDUCTION)){
+        if (loudSoundReductionCapability && vendorIdHook){
             StyledToggle(
                 label = stringResource(R.string.loud_sound_reduction),
                 description = stringResource(R.string.loud_sound_reduction_description),
-                attHandle = ATTHandles.LOUD_SOUND_REDUCTION,
-                independent = false
+                independent = false,
+                checked = loudSoundReductionChecked,
+                onCheckedChange = onLoudSoundReductionCheckedChange,
+                enabled = isPremium
             )
             HorizontalDivider(
                 thickness = 1.dp,
@@ -134,7 +150,7 @@ fun AudioSettings(navController: NavController) {
             )
         }
 
-        if (airpodsInstance.model.capabilities.contains(Capability.ADAPTIVE_AUDIO)) {
+        if (adaptiveAudioCapability) {
             NavigationButton(
                 to = "adaptive_strength",
                 name = stringResource(R.string.adaptive_audio),
@@ -148,5 +164,19 @@ fun AudioSettings(navController: NavController) {
 @Preview
 @Composable
 fun AudioSettingsPreview() {
-    AudioSettings(rememberNavController())
+    AudioSettings(
+        navController = rememberNavController(),
+        adaptiveVolumeCapability = true,
+        conversationalAwarenessCapability = true,
+        loudSoundReductionCapability = true,
+        adaptiveAudioCapability = true,
+        adaptiveVolumeChecked = true,
+        onAdaptiveVolumeCheckedChange = { },
+        conversationalAwarenessChecked = true,
+        onConversationalAwarenessCheckedChange = { },
+        loudSoundReductionChecked = true,
+        onLoudSoundReductionCheckedChange = { },
+        vendorIdHook = true,
+        isPremium = true
+    )
 }

android/app/src/main/java/me/kavishdevar/librepods/presentation/components/BatteryIndicator.kt

@@ -0,0 +1,214 @@
+/*
+    LibrePods - AirPods liberated from Apple’s ecosystem
+    Copyright (C) 2025 LibrePods contributors
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+package me.kavishdevar.librepods.presentation.components
+
+
+import android.content.res.Configuration
+import androidx.compose.animation.core.Animatable
+import androidx.compose.animation.core.tween
+import androidx.compose.foundation.Canvas
+import androidx.compose.foundation.background
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.scale
+import androidx.compose.ui.geometry.Offset
+import androidx.compose.ui.geometry.Rect
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.StrokeCap
+import androidx.compose.ui.graphics.drawscope.Stroke
+import androidx.compose.ui.platform.LocalDensity
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.Font
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import me.kavishdevar.librepods.R
+import me.kavishdevar.librepods.data.BatteryStatus
+import kotlin.math.cos
+import kotlin.math.min
+import kotlin.math.sin
+import kotlin.math.sqrt
+
+@Composable
+fun BatteryIndicator(
+    batteryPercentage: Int,
+    status: Int,
+    prefix: String = "",
+    previousCharging: Boolean = false,
+) {
+    val isDarkTheme = isSystemInDarkTheme()
+    val backgroundColor = if (isDarkTheme) Color.Black else Color(0xFFF2F2F7)
+    val batteryTextColor = if (isDarkTheme) Color.White else Color.Black
+    val batteryFillColor =
+        if (batteryPercentage > 25) if (isDarkTheme) Color(0xFF2ED158) else Color(0xFF35C759)
+        else if (isDarkTheme) Color(0xFFFC4244) else Color(0xFFfe373C)
+
+    val initialScale = if (previousCharging) 1f else 0f
+    val scaleAnim = remember { Animatable(initialScale) }
+    val charging = status == BatteryStatus.CHARGING || status == BatteryStatus.OPTIMIZED_CHARGING
+    val targetScale = if (charging) 1f else 0f
+
+    LaunchedEffect(previousCharging, charging) {
+        scaleAnim.animateTo(targetScale, animationSpec = tween(durationMillis = 250))
+    }
+
+    Column(
+        modifier = Modifier.background(backgroundColor).padding(4.dp), // just for haze to work
+        horizontalAlignment = Alignment.CenterHorizontally
+    ) {
+        Box(
+            modifier = Modifier.padding(bottom = 4.dp), contentAlignment = Alignment.Center
+        ) {
+            val strokeWidthPx = with(LocalDensity.current) { 4.dp.toPx() }
+            val gapFromCenterPx = with(LocalDensity.current) { 8.sp.toPx() }
+
+            val trackColor = if (isDarkTheme) Color(0xFF272728) else Color(0xFFE3E3E8)
+            val optimizedLimit = 0.8f
+            val progress = batteryPercentage / 100f
+
+            Canvas(modifier = Modifier.size(34.dp)) {
+                val startAngle = -90f
+                val stroke = Stroke(width = strokeWidthPx, cap = StrokeCap.Round)
+                val inset = strokeWidthPx / 2
+                Rect(
+                    left = inset,
+                    top = inset,
+                    right = size.width - inset,
+                    bottom = size.height - inset
+                )
+                val radius = size.minDimension / 2
+
+                if (status == BatteryStatus.OPTIMIZED_CHARGING) {
+                    drawArc(
+                        color = trackColor,
+                        startAngle = startAngle,
+                        sweepAngle = 360f * optimizedLimit,
+                        useCenter = false,
+                        style = stroke
+                    )
+
+                    val sweep = 360f * min(progress, optimizedLimit)
+                    drawArc(
+                        color = batteryFillColor,
+                        startAngle = startAngle,
+                        sweepAngle = sweep,
+                        useCenter = false,
+                        style = stroke
+                    )
+
+                    // ---- PILL MARKER AT 80% ----
+                    val angleDeg = startAngle + 360f * optimizedLimit
+                    val angleRad = Math.toRadians(angleDeg.toDouble())
+
+                    val arcRadius = radius - strokeWidthPx
+
+                    val outerX = center.x + arcRadius * cos(angleRad).toFloat()
+                    val outerY = center.y + arcRadius * sin(angleRad).toFloat()
+
+                    val dirX = center.x - outerX
+                    val dirY = center.y - outerY
+                    val length = sqrt(dirX * dirX + dirY * dirY)
+
+                    val normX = dirX / length
+                    val normY = dirY / length
+
+                    val startX = outerX - normX * strokeWidthPx / 2
+                    val startY = outerY - normY * strokeWidthPx / 2
+
+                    val endX = center.x - normX * gapFromCenterPx
+                    val endY = center.y - normY * gapFromCenterPx
+
+                    drawLine(
+                        color = if (batteryPercentage >= 80) batteryFillColor else trackColor,
+                        start = Offset(startX, startY),
+                        end = Offset(endX, endY),
+                        strokeWidth = strokeWidthPx,
+                        cap = StrokeCap.Round
+                    )
+                } else {
+                    drawArc(
+                        color = trackColor,
+                        startAngle = 0f,
+                        sweepAngle = 360f,
+                        useCenter = false,
+                        style = stroke
+                    )
+
+                    drawArc(
+                        color = batteryFillColor,
+                        startAngle = startAngle,
+                        sweepAngle = 360f * progress,
+                        useCenter = false,
+                        style = stroke
+                    )
+                }
+            }
+
+            Text(
+                text = "\uDBC0\uDEE6", style = TextStyle(
+                    fontSize = 14.sp,
+                    fontFamily = FontFamily(Font(R.font.sf_pro)),
+                    color = batteryFillColor,
+                    textAlign = TextAlign.Center
+                ), modifier = Modifier.scale(scaleAnim.value)
+            )
+        }
+
+        Spacer(modifier = Modifier.height(4.dp))
+
+        Text(
+            text = "$prefix $batteryPercentage%",
+            color = batteryTextColor,
+            style = TextStyle(
+                fontSize = 14.sp,
+                fontFamily = FontFamily(Font(R.font.sf_pro)),
+                textAlign = TextAlign.Center
+            ),
+        )
+    }
+}
+
+@Preview(uiMode = Configuration.UI_MODE_NIGHT_YES)
+@Composable
+fun BatteryIndicatorPreview() {
+    val bg = if (isSystemInDarkTheme()) Color.Black else Color(0xFFF2F2F7)
+    Box(
+        modifier = Modifier.background(bg)
+    ) {
+        BatteryIndicator(
+            batteryPercentage = 50,
+            status = BatteryStatus.OPTIMIZED_CHARGING,
+            prefix = "\uDBC6\uDCE5",
+            previousCharging = false
+        )
+    }
+}

android/app/src/main/java/me/kavishdevar/librepods/presentation/components/BatteryView.kt

@@ -0,0 +1,177 @@
+/*
+    LibrePods - AirPods liberated from Apple’s ecosystem
+    Copyright (C) 2025 LibrePods contributors
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+@file:OptIn(ExperimentalEncodingApi::class)
+
+package me.kavishdevar.librepods.presentation.components
+
+import android.content.res.Configuration
+import androidx.compose.foundation.Image
+import androidx.compose.foundation.background
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.layout.widthIn
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.ImageBitmap
+import androidx.compose.ui.res.imageResource
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import me.kavishdevar.librepods.R
+import me.kavishdevar.librepods.data.Battery
+import me.kavishdevar.librepods.data.BatteryComponent
+import me.kavishdevar.librepods.data.BatteryStatus
+import kotlin.io.encoding.ExperimentalEncodingApi
+
+@Composable
+fun BatteryView(
+    batteryList: List<Battery>,
+    budsRes: Int,
+    caseRes: Int
+) {
+    val left = batteryList.find { it.component == BatteryComponent.LEFT }
+    val right = batteryList.find { it.component == BatteryComponent.RIGHT }
+    val case = batteryList.find { it.component == BatteryComponent.CASE }
+
+    val leftLevel = left?.level ?: 0
+    val rightLevel = right?.level ?: 0
+    val caseLevel = case?.level ?: 0
+
+    val caseCharging = case?.status == BatteryStatus.CHARGING ||
+        case?.status == BatteryStatus.OPTIMIZED_CHARGING
+
+    val singleDisplayed = remember { mutableStateOf(false) }
+
+    Box(
+        modifier = Modifier.fillMaxWidth(),
+        contentAlignment = Alignment.Center
+    ) {
+        Row(
+            modifier = Modifier.widthIn(max = 500.dp),
+            horizontalArrangement = Arrangement.Center
+        ) {
+            Column(
+                modifier = Modifier.weight(1f),
+                horizontalAlignment = Alignment.CenterHorizontally
+            ) {
+                Image(
+                    bitmap = ImageBitmap.imageResource(budsRes),
+                    contentDescription = stringResource(R.string.buds),
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .padding(8.dp)
+                )
+
+                if (
+                    left?.status == right?.status &&
+                    (leftLevel - rightLevel) in -3..3
+                ) {
+                    BatteryIndicator(
+                        leftLevel.coerceAtMost(rightLevel),
+                        left?.status ?: BatteryStatus.NOT_CHARGING
+                    )
+                    singleDisplayed.value = true
+                } else {
+                    singleDisplayed.value = false
+
+                    Row(
+                        modifier = Modifier.fillMaxWidth(),
+                        horizontalArrangement = Arrangement.Center
+                    ) {
+                        if (leftLevel > 0 || left?.status != BatteryStatus.DISCONNECTED) {
+                            BatteryIndicator(
+                                leftLevel,
+                                left?.status ?: BatteryStatus.NOT_CHARGING,
+                                "\uDBC6\uDCE5"
+                            )
+                        }
+
+                        if (leftLevel > 0 && rightLevel > 0) {
+                            Spacer(modifier = Modifier.width(16.dp))
+                        }
+
+                        if (rightLevel > 0 || right?.status != BatteryStatus.DISCONNECTED) {
+                            BatteryIndicator(
+                                rightLevel,
+                                right?.status ?: BatteryStatus.NOT_CHARGING,
+                                "\uDBC6\uDCE8"
+                            )
+                        }
+                    }
+                }
+            }
+
+            Column(
+                modifier = Modifier.weight(1f),
+                horizontalAlignment = Alignment.CenterHorizontally
+            ) {
+                Image(
+                    bitmap = ImageBitmap.imageResource(caseRes),
+                    contentDescription = stringResource(R.string.case_alt),
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .padding(8.dp)
+                )
+
+                if (caseLevel > 0 || case?.status != BatteryStatus.DISCONNECTED) {
+                    BatteryIndicator(
+                        caseLevel,
+                        case?.status ?: BatteryStatus.NOT_CHARGING,
+                        prefix = if (!singleDisplayed.value) "\uDBC3\uDE6C" else ""
+                    )
+                }
+            }
+        }
+    }
+}
+
+@Preview(uiMode = Configuration.UI_MODE_NIGHT_YES)
+@Composable
+fun BatteryViewPreview() {
+    val fakeBattery = listOf(
+        Battery(BatteryComponent.LEFT, 85, BatteryStatus.CHARGING),
+        Battery(BatteryComponent.RIGHT, 40, BatteryStatus.OPTIMIZED_CHARGING),
+        Battery(BatteryComponent.CASE, 60, BatteryStatus.NOT_CHARGING)
+    )
+
+    val bg = if (isSystemInDarkTheme()) Color.Black else Color(0xFFF2F2F7)
+
+    Box(
+        modifier = Modifier
+            .background(bg)
+            .padding(16.dp)
+    ) {
+        BatteryView(
+            batteryList = fakeBattery,
+            budsRes = R.drawable.airpods_pro_2_buds,
+            caseRes = R.drawable.airpods_pro_2_case
+        )
+    }
+}

android/app/src/main/java/me/kavishdevar/librepods/presentation/components/CallControlSettings.kt

@@ -18,7 +18,7 @@
 
 @file:OptIn(ExperimentalEncodingApi::class)
 
-package me.kavishdevar.librepods.composables
+package me.kavishdevar.librepods.presentation.components
 
 import android.util.Log
 import androidx.compose.foundation.background
@@ -36,39 +36,43 @@ import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material3.HorizontalDivider
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.DisposableEffect
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableLongStateOf
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.geometry.Offset
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.hapticfeedback.HapticFeedbackType
 import androidx.compose.ui.input.pointer.pointerInput
 import androidx.compose.ui.layout.onGloballyPositioned
 import androidx.compose.ui.layout.positionInParent
 import androidx.compose.ui.platform.LocalDensity
+import androidx.compose.ui.platform.LocalHapticFeedback
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.TextStyle
 import androidx.compose.ui.text.font.Font
 import androidx.compose.ui.text.font.FontFamily
 import androidx.compose.ui.text.font.FontWeight
-import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import dev.chrisbanes.haze.HazeState
 import dev.chrisbanes.haze.materials.ExperimentalHazeMaterialsApi
+import kotlinx.coroutines.launch
 import me.kavishdevar.librepods.R
-import me.kavishdevar.librepods.services.ServiceManager
-import me.kavishdevar.librepods.utils.AACPManager
 import kotlin.io.encoding.ExperimentalEncodingApi
 
 @ExperimentalHazeMaterialsApi
 @Composable
-fun CallControlSettings(hazeState: HazeState) {
+fun CallControlSettings(
+    hazeState: HazeState,
+    flipped: Boolean,
+    onCallControlValueChanged: (Boolean) -> Unit
+) {
     val isDarkTheme = isSystemInDarkTheme()
     val textColor = if (isDarkTheme) Color.White else Color.Black
     val backgroundColor = if (isDarkTheme) Color(0xFF1C1C1E) else Color(0xFFFFFFFF)
@@ -82,7 +86,8 @@ fun CallControlSettings(hazeState: HazeState) {
             style = TextStyle(
                 fontSize = 14.sp,
                 fontWeight = FontWeight.Bold,
-                color = textColor.copy(alpha = 0.6f)
+                color = textColor.copy(alpha = 0.6f),
+                fontFamily = FontFamily(Font(R.font.sf_pro))
             )
         )
     }
@@ -93,24 +98,13 @@ fun CallControlSettings(hazeState: HazeState) {
             .background(backgroundColor, RoundedCornerShape(28.dp))
             .padding(top = 2.dp)
     ) {
-        val service = ServiceManager.getService()!!
-        val callControlEnabledValue = service.aacpManager.controlCommandStatusList.find {
-            it.identifier == AACPManager.Companion.ControlCommandIdentifiers.CALL_MANAGEMENT_CONFIG
-        }?.value ?: byteArrayOf(0x00, 0x03)
+
+        val scope = rememberCoroutineScope()
+        val haptics = LocalHapticFeedback.current
 
         val pressOnceText = stringResource(R.string.press_once)
         val pressTwiceText = stringResource(R.string.press_twice)
 
-        var flipped by remember {
-            mutableStateOf(
-                callControlEnabledValue.contentEquals(
-                    byteArrayOf(
-                        0x00,
-                        0x02
-                    )
-                )
-            )
-        }
         var singlePressAction by remember { mutableStateOf(if (flipped) pressTwiceText else pressOnceText) }
         var doublePressAction by remember { mutableStateOf(if (flipped) pressOnceText else pressTwiceText) }
 
@@ -120,6 +114,7 @@ fun CallControlSettings(hazeState: HazeState) {
         var lastDismissTimeSingle by remember { mutableLongStateOf(0L) }
         var parentHoveredIndexSingle by remember { mutableStateOf<Int?>(null) }
         var parentDragActiveSingle by remember { mutableStateOf(false) }
+        var previousIdxSingle by remember { mutableStateOf<Int?>(null) }
 
         var showDoublePressDropdown by remember { mutableStateOf(false) }
         var touchOffsetDouble by remember { mutableStateOf<Offset?>(null) }
@@ -127,36 +122,8 @@ fun CallControlSettings(hazeState: HazeState) {
         var lastDismissTimeDouble by remember { mutableLongStateOf(0L) }
         var parentHoveredIndexDouble by remember { mutableStateOf<Int?>(null) }
         var parentDragActiveDouble by remember { mutableStateOf(false) }
+        var previousIdxDouble by remember { mutableStateOf<Int?>(null) }
 
-        LaunchedEffect(Unit) {
-            val listener = object : AACPManager.ControlCommandListener {
-                override fun onControlCommandReceived(controlCommand: AACPManager.ControlCommand) {
-                    if (AACPManager.Companion.ControlCommandIdentifiers.fromByte(controlCommand.identifier) ==
-                        AACPManager.Companion.ControlCommandIdentifiers.CALL_MANAGEMENT_CONFIG
-                    ) {
-                        val newFlipped = controlCommand.value.contentEquals(byteArrayOf(0x00, 0x02))
-                        flipped = newFlipped
-                        singlePressAction = if (newFlipped) pressTwiceText else pressOnceText
-                        doublePressAction = if (newFlipped) pressOnceText else pressTwiceText
-                        Log.d(
-                            "CallControlSettings",
-                            "Control command received, flipped: $newFlipped"
-                        )
-                    }
-                }
-            }
-
-            service.aacpManager.registerControlCommandListener(
-                AACPManager.Companion.ControlCommandIdentifiers.CALL_MANAGEMENT_CONFIG,
-                listener
-            )
-        }
-
-        DisposableEffect(Unit) {
-            onDispose {
-                service.aacpManager.controlCommandListeners[AACPManager.Companion.ControlCommandIdentifiers.CALL_MANAGEMENT_CONFIG]?.clear()
-            }
-        }
         LaunchedEffect(flipped) {
             Log.d("CallControlSettings", "Call control flipped: $flipped")
         }
@@ -231,7 +198,11 @@ fun CallControlSettings(hazeState: HazeState) {
                                 val touch = touchOffsetSingle ?: current
                                 val posInPopupY = current.y - touch.y
                                 val idx = (posInPopupY / itemHeightPx).toInt()
+                                if (idx != previousIdxSingle) {
+                                    scope.launch { haptics.performHapticFeedback(HapticFeedbackType.SegmentTick) }
+                                }
                                 parentHoveredIndexSingle = idx
+                                previousIdxSingle = idx
                             },
                             onDragEnd = {
                                 parentDragActiveSingle = false
@@ -244,13 +215,13 @@ fun CallControlSettings(hazeState: HazeState) {
                                             if (option == pressOnceText) pressTwiceText else pressOnceText
                                         showSinglePressDropdown = false
                                         lastDismissTimeSingle = System.currentTimeMillis()
-                                        val bytes = if (option == pressOnceText) byteArrayOf(
-                                            0x00,
-                                            0x03
-                                        ) else byteArrayOf(0x00, 0x02)
-                                        service.aacpManager.sendControlCommand(0x24, bytes)
+                                        onCallControlValueChanged(option != pressOnceText)
+
                                     }
                                 }
+                                if (parentHoveredIndexSingle != null && parentHoveredIndexSingle in 0..1) {
+                                    scope.launch { haptics.performHapticFeedback(HapticFeedbackType.GestureEnd) }
+                                }
                                 parentHoveredIndexSingle = null
                             },
                             onDragCancel = {
@@ -313,11 +284,8 @@ fun CallControlSettings(hazeState: HazeState) {
                             doublePressAction =
                                 if (option == pressOnceText) pressTwiceText else pressOnceText
                             showSinglePressDropdown = false
-                            val bytes = if (option == pressOnceText) byteArrayOf(
-                                0x00,
-                                0x03
-                            ) else byteArrayOf(0x00, 0x02)
-                            service.aacpManager.sendControlCommand(0x24, bytes)
+                            val flipped = option != pressOnceText
+                            onCallControlValueChanged(flipped)
                         },
                         hazeState = hazeState
                     )
@@ -366,7 +334,11 @@ fun CallControlSettings(hazeState: HazeState) {
                                 val touch = touchOffsetDouble ?: current
                                 val posInPopupY = current.y - touch.y
                                 val idx = (posInPopupY / itemHeightPx).toInt()
+                                if (idx != previousIdxDouble) {
+                                    scope.launch { haptics.performHapticFeedback(HapticFeedbackType.SegmentTick) }
+                                }
                                 parentHoveredIndexDouble = idx
+                                previousIdxDouble = idx
                             },
                             onDragEnd = {
                                 parentDragActiveDouble = false
@@ -379,13 +351,13 @@ fun CallControlSettings(hazeState: HazeState) {
                                             if (option == pressOnceText) pressTwiceText else pressOnceText
                                         showDoublePressDropdown = false
                                         lastDismissTimeDouble = System.currentTimeMillis()
-                                        val bytes = if (option == pressOnceText) byteArrayOf(
-                                            0x00,
-                                            0x02
-                                        ) else byteArrayOf(0x00, 0x03)
-                                        service.aacpManager.sendControlCommand(0x24, bytes)
+                                        val flipped = option == pressOnceText
+                                        onCallControlValueChanged(flipped)
                                     }
                                 }
+                                if (parentHoveredIndexDouble != null && parentHoveredIndexDouble in 0..1) {
+                                    scope.launch { haptics.performHapticFeedback(HapticFeedbackType.GestureEnd) }
+                                }
                                 parentHoveredIndexDouble = null
                             },
                             onDragCancel = {
@@ -448,11 +420,8 @@ fun CallControlSettings(hazeState: HazeState) {
                             singlePressAction =
                                 if (option == pressOnceText) pressTwiceText else pressOnceText
                             showDoublePressDropdown = false
-                            val bytes = if (option == pressOnceText) byteArrayOf(
-                                0x00,
-                                0x02
-                            ) else byteArrayOf(0x00, 0x03)
-                            service.aacpManager.sendControlCommand(0x24, bytes)
+                            val flipped = option == pressOnceText
+                            onCallControlValueChanged(flipped)
                         },
                         hazeState = hazeState
                     )
@@ -461,10 +430,3 @@ fun CallControlSettings(hazeState: HazeState) {
         }
     }
 }
-
-@ExperimentalHazeMaterialsApi
-@Preview
-@Composable
-fun CallControlSettingsPreview() {
-    CallControlSettings(HazeState())
-}

android/app/src/main/java/me/kavishdevar/librepods/presentation/components/ConfirmationDialog.kt

@@ -0,0 +1,179 @@
+/*
+    LibrePods - AirPods liberated from Apple’s ecosystem
+    Copyright (C) 2025 LibrePods contributors
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+package me.kavishdevar.librepods.presentation.components
+
+import androidx.compose.animation.AnimatedVisibility
+import androidx.compose.animation.fadeIn
+import androidx.compose.animation.fadeOut
+import androidx.compose.animation.scaleIn
+import androidx.compose.animation.scaleOut
+import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.requiredWidthIn
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.MutableState
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.Font
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import com.kyant.backdrop.backdrops.LayerBackdrop
+import com.kyant.backdrop.backdrops.rememberLayerBackdrop
+import com.kyant.backdrop.drawBackdrop
+import com.kyant.backdrop.effects.blur
+import com.kyant.backdrop.effects.lens
+import com.kyant.backdrop.effects.vibrancy
+import dev.chrisbanes.haze.materials.ExperimentalHazeMaterialsApi
+import me.kavishdevar.librepods.R
+
+@ExperimentalHazeMaterialsApi
+@Composable
+fun ConfirmationDialog(
+    showDialog: MutableState<Boolean>,
+    title: String,
+    message: String,
+    confirmText: String = "Enable",
+    dismissText: String = "Cancel",
+    onConfirm: () -> Unit,
+    onDismiss: () -> Unit = { showDialog.value = false },
+    backdrop: LayerBackdrop,
+) {
+    val isDarkTheme = isSystemInDarkTheme()
+    val textColor = if (isDarkTheme) Color.White else Color.Black
+    val accentColor = if (isDarkTheme) Color(0xFF0091FF) else Color(0xFF0088FF)
+
+    AnimatedVisibility(
+        visible = showDialog.value,
+        enter = scaleIn(initialScale = 1.05f) + fadeIn(),
+        exit = scaleOut(targetScale = 1.05f) + fadeOut()
+    ) {
+        Box(
+            modifier = Modifier.fillMaxSize(),
+            contentAlignment = Alignment.Center
+        ) {
+            val innerBackdrop = rememberLayerBackdrop()
+            Box(
+                modifier = Modifier
+                    .fillMaxSize()
+                    .background(Color.Black.copy(alpha = 0.4f))
+                    .clickable(enabled = false, onClick = {}),
+                contentAlignment = Alignment.Center
+            ) {
+                Box(
+                    modifier = Modifier
+                        .requiredWidthIn(min = 200.dp, max = 360.dp)
+                        .clip(RoundedCornerShape(48.dp))
+                        .drawBackdrop(
+                            backdrop = backdrop,
+                            exportedBackdrop = innerBackdrop,
+                            shape = { RoundedCornerShape(48.dp) },
+                            effects = {
+                                vibrancy()
+                                blur(4f.dp.toPx())
+                                lens(12f.dp.toPx(), 48f.dp.toPx(), true)
+                            },
+                            onDrawSurface = {
+                                drawRect(
+                                    if (isDarkTheme) Color(0xFF1F1F1F).copy(alpha = 0.35f) else Color(0xFFE0E0E0).copy(alpha = 0.7f)
+                                )
+                            })) {
+                    Column(horizontalAlignment = Alignment.CenterHorizontally) {
+                        Spacer(modifier = Modifier.height(24.dp))
+                        Text(
+                            title,
+                            style = TextStyle(
+                                fontSize = 16.sp,
+                                fontWeight = FontWeight.Bold,
+                                color = textColor,
+                                fontFamily = FontFamily(Font(R.font.sf_pro))
+                            ),
+                            textAlign = TextAlign.Center,
+                            modifier = Modifier.padding(horizontal = 16.dp)
+                        )
+                        Spacer(modifier = Modifier.height(12.dp))
+                        Text(
+                            message,
+                            style = TextStyle(
+                                fontSize = 14.sp,
+                                color = textColor.copy(alpha = 0.8f),
+                                fontFamily = FontFamily(Font(R.font.sf_pro))
+                            ),
+                            textAlign = TextAlign.Center,
+                            modifier = Modifier.padding(horizontal = 16.dp)
+                        )
+                        Spacer(modifier = Modifier.height(16.dp))
+                        Row(
+                            modifier = Modifier.fillMaxWidth(0.9f),
+                            horizontalArrangement = Arrangement.spacedBy(24.dp)
+                        ) {
+                            StyledButton(
+                                onClick = onDismiss,
+                                backdrop = innerBackdrop,
+                                modifier = Modifier.weight(1f),
+                            ) {
+                                Text(
+                                    text = dismissText, style = TextStyle(
+                                        fontFamily = FontFamily(Font(R.font.sf_pro)),
+                                        fontWeight = FontWeight.Medium,
+                                        fontSize = 14.sp,
+                                        color = textColor
+                                    )
+                                )
+                            }
+                            StyledButton(
+                                onClick = onConfirm,
+                                backdrop = innerBackdrop,
+                                modifier = Modifier.weight(1f),
+                                surfaceColor = accentColor
+                            ) {
+                                Text(
+                                    text = confirmText, style = TextStyle(
+                                        fontFamily = FontFamily(Font(R.font.sf_pro)),
+                                        fontWeight = FontWeight.Medium,
+                                        fontSize = 14.sp,
+                                        color = Color.White
+                                    )
+                                )
+                            }
+                        }
+                        Spacer(modifier = Modifier.height(24.dp))
+                    }
+                }
+            }
+        }
+    }
+}

android/app/src/main/java/me/kavishdevar/librepods/presentation/components/ConnectionSettings.kt

@@ -18,9 +18,8 @@
 
 @file:OptIn(ExperimentalEncodingApi::class)
 
-package me.kavishdevar.librepods.composables
+package me.kavishdevar.librepods.presentation.components
 
-import android.content.Context.MODE_PRIVATE
 import androidx.compose.foundation.background
 import androidx.compose.foundation.isSystemInDarkTheme
 import androidx.compose.foundation.layout.Column
@@ -31,16 +30,18 @@ import androidx.compose.material3.HorizontalDivider
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.stringResource
-import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import me.kavishdevar.librepods.R
-import me.kavishdevar.librepods.utils.AACPManager
 import kotlin.io.encoding.ExperimentalEncodingApi
 
 @Composable
-fun ConnectionSettings() {
+fun ConnectionSettings(
+    automaticEarDetectionEnabled: Boolean,
+    onAutomaticEarDetectionChanged: (Boolean) -> Unit,
+    automaticConnectionEnabled: Boolean,
+    onAutomaticConnectionChanged: (Boolean) -> Unit,
+) {
     val isDarkTheme = isSystemInDarkTheme()
     val backgroundColor = if (isDarkTheme) Color(0xFF1C1C1E) else Color(0xFFFFFFFF)
 
@@ -52,10 +53,9 @@ fun ConnectionSettings() {
     ) {
         StyledToggle(
             label = stringResource(R.string.ear_detection),
-            controlCommandIdentifier = AACPManager.Companion.ControlCommandIdentifiers.EAR_DETECTION_CONFIG,
-            sharedPreferenceKey = "automatic_ear_detection",
-            sharedPreferences = LocalContext.current.getSharedPreferences("settings", MODE_PRIVATE),
-            independent = false
+            independent = false,
+            checked = automaticEarDetectionEnabled,
+            onCheckedChange = onAutomaticEarDetectionChanged
         )
         HorizontalDivider(
             thickness = 1.dp,
@@ -67,16 +67,9 @@ fun ConnectionSettings() {
         StyledToggle(
             label = stringResource(R.string.automatically_connect),
             description = stringResource(R.string.automatically_connect_description),
-            controlCommandIdentifier = AACPManager.Companion.ControlCommandIdentifiers.AUTOMATIC_CONNECTION_CONFIG,
-            sharedPreferenceKey = "automatic_connection_ctrl_cmd",
-            sharedPreferences = LocalContext.current.getSharedPreferences("settings", MODE_PRIVATE),
-            independent = false
+            independent = false,
+            checked = automaticConnectionEnabled,
+            onCheckedChange = onAutomaticConnectionChanged
         )
     }
 }
-
-@Preview
-@Composable
-fun ConnectionSettingsPreview() {
-    ConnectionSettings()
-}

android/app/src/main/java/me/kavishdevar/librepods/presentation/components/ControlCenterButton.kt

@@ -18,7 +18,7 @@
 
 @file:Suppress("unused")
 
-package me.kavishdevar.librepods.composables
+package me.kavishdevar.librepods.presentation.components
 
 import androidx.compose.animation.animateColorAsState
 import androidx.compose.foundation.background

android/app/src/main/java/me/kavishdevar/librepods/presentation/components/ControlCenterNoiseControlSegmentedButton.kt

@@ -16,7 +16,7 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-package me.kavishdevar.librepods.composables
+package me.kavishdevar.librepods.presentation.components
 
 import androidx.compose.animation.core.Spring
 import androidx.compose.animation.core.animateDpAsState
@@ -56,7 +56,7 @@ import androidx.compose.ui.unit.Dp
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import me.kavishdevar.librepods.R
-import me.kavishdevar.librepods.constants.NoiseControlMode
+import me.kavishdevar.librepods.data.NoiseControlMode
 
 private val ContainerColor = Color(0x593C3C3E)
 private val SelectedIndicatorColorGray = Color(0xFF6C6C6E)

android/app/src/main/java/me/kavishdevar/librepods/presentation/components/DeviceInfoCard.kt

@@ -0,0 +1,235 @@
+package me.kavishdevar.librepods.presentation.components
+
+import android.os.Build
+import androidx.compose.foundation.background
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.HorizontalDivider
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.layout.onGloballyPositioned
+import androidx.compose.ui.platform.LocalDensity
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.Font
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import me.kavishdevar.librepods.R
+import me.kavishdevar.librepods.utils.XposedState
+
+@Composable
+fun DeviceInfoCard() {
+    val isDarkTheme = isSystemInDarkTheme()
+
+    val textColor = if (isDarkTheme) Color.White else Color.Black
+    val backgroundColor = if (isDarkTheme) Color(0xFF1C1C1E) else Color(0xFFFFFFFF)
+
+    val rowHeight = remember { mutableStateOf(0.dp) }
+    val density = LocalDensity.current
+
+    Column (
+        verticalArrangement = Arrangement.spacedBy(8.dp)
+    ) {
+        Box(
+            modifier = Modifier
+                .background(if (isDarkTheme) Color.Black else Color(0xFFF2F2F7))
+                .padding(start = 16.dp, top = 24.dp, end = 4.dp)
+        ) {
+            Text(
+                text = stringResource(R.string.device_info), style = TextStyle(
+                    fontSize = 14.sp,
+                    fontWeight = FontWeight.Bold,
+                    color = textColor.copy(alpha = 0.6f),
+                    fontFamily = FontFamily(Font(R.font.sf_pro))
+                )
+            )
+        }
+        Column(
+            modifier = Modifier
+                .clip(RoundedCornerShape(28.dp))
+                .fillMaxWidth()
+                .background(backgroundColor, RoundedCornerShape(28.dp))
+        ) {
+            Row(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(16.dp)
+                    .onGloballyPositioned { coordinates ->
+                        rowHeight.value = with(density) { coordinates.size.height.toDp() }
+                    },
+                horizontalArrangement = Arrangement.SpaceBetween,
+            ) {
+                Text(
+                    text = stringResource(R.string.manufacturer), style = TextStyle(
+                        fontSize = 16.sp,
+                        color = textColor,
+                        fontFamily = FontFamily(Font(R.font.sf_pro))
+                    )
+                )
+                Text(
+                    text = Build.MANUFACTURER, style = TextStyle(
+                        fontSize = 16.sp,
+                        color = if (isDarkTheme) Color.White.copy(alpha = 0.6f) else Color.Black.copy(
+                            alpha = 0.8f
+                        ),
+                        fontFamily = FontFamily(Font(R.font.sf_pro))
+                    )
+                )
+            }
+            HorizontalDivider(
+                thickness = 1.dp,
+                color = Color(0x40888888),
+                modifier = Modifier.padding(horizontal = 12.dp)
+            )
+            Row(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(16.dp),
+                horizontalArrangement = Arrangement.SpaceBetween,
+            ) {
+                Text(
+                    text = stringResource(R.string.model_number), style = TextStyle(
+                        fontSize = 16.sp,
+                        color = textColor,
+                        fontFamily = FontFamily(Font(R.font.sf_pro))
+                    )
+                )
+                Text(
+                    text = Build.MODEL, style = TextStyle(
+                        fontSize = 16.sp,
+                        color = if (isDarkTheme) Color.White.copy(alpha = 0.6f) else Color.Black.copy(
+                            alpha = 0.8f
+                        ),
+                        fontFamily = FontFamily(Font(R.font.sf_pro))
+                    )
+                )
+            }
+            HorizontalDivider(
+                thickness = 1.dp,
+                color = Color(0x40888888),
+                modifier = Modifier.padding(horizontal = 12.dp)
+            )
+            Row(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(16.dp),
+                horizontalArrangement = Arrangement.SpaceBetween,
+            ) {
+                Text(
+                    text = stringResource(R.string.build_id), style = TextStyle(
+                        fontSize = 16.sp,
+                        color = textColor,
+                        fontFamily = FontFamily(Font(R.font.sf_pro))
+                    )
+                )
+                Text(
+                    text = Build.DISPLAY, style = TextStyle(
+                        fontSize = 16.sp,
+                        color = if (isDarkTheme) Color.White.copy(alpha = 0.6f) else Color.Black.copy(
+                            alpha = 0.8f
+                        ),
+                        fontFamily = FontFamily(Font(R.font.sf_pro))
+                    )
+                )
+            }
+            HorizontalDivider(
+                thickness = 1.dp,
+                color = Color(0x40888888),
+                modifier = Modifier.padding(horizontal = 12.dp)
+            )
+            Row(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(16.dp),
+                horizontalArrangement = Arrangement.SpaceBetween,
+            ) {
+                Text(
+                    text = stringResource(R.string.version), style = TextStyle(
+                        fontSize = 16.sp,
+                        color = textColor,
+                        fontFamily = FontFamily(Font(R.font.sf_pro))
+                    )
+                )
+                Text(
+                    text = Build.ID + " (${Build.VERSION.SDK_INT_FULL})",
+                    style = TextStyle(
+                        fontSize = 16.sp,
+                        color = if (isDarkTheme) Color.White.copy(alpha = 0.6f) else Color.Black.copy(
+                            alpha = 0.8f
+                        ),
+                        fontFamily = FontFamily(Font(R.font.sf_pro))
+                    )
+                )
+            }
+            HorizontalDivider(
+                thickness = 1.dp,
+                color = Color(0x40888888),
+                modifier = Modifier.padding(horizontal = 12.dp)
+            )
+            Row(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(16.dp),
+                horizontalArrangement = Arrangement.SpaceBetween,
+            ) {
+                Text(
+                    text = stringResource(R.string.xposed_available), style = TextStyle(
+                        fontSize = 16.sp,
+                        color = textColor,
+                        fontFamily = FontFamily(Font(R.font.sf_pro))
+                    )
+                )
+                Text(
+                    text = if (XposedState.isAvailable) stringResource(R.string.yes) else stringResource(R.string.no), style = TextStyle(
+                        fontSize = 16.sp,
+                        color = if (isDarkTheme) Color.White.copy(alpha = 0.6f) else Color.Black.copy(
+                            alpha = 0.8f
+                        ),
+                        fontFamily = FontFamily(Font(R.font.sf_pro))
+                    )
+                )
+            }
+            HorizontalDivider(
+                thickness = 1.dp,
+                color = Color(0x40888888),
+                modifier = Modifier.padding(horizontal = 12.dp)
+            )
+            Row(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(16.dp),
+                horizontalArrangement = Arrangement.SpaceBetween,
+            ) {
+                Text(
+                    text = stringResource(R.string.app_enabled_in_xposed), style = TextStyle(
+                        fontSize = 16.sp,
+                        color = textColor,
+                        fontFamily = FontFamily(Font(R.font.sf_pro))
+                    )
+                )
+                Text(
+                    text = if (XposedState.bluetoothScopeEnabled) stringResource(R.string.yes) else stringResource(R.string.no), style = TextStyle(
+                        fontSize = 16.sp,
+                        color = if (isDarkTheme) Color.White.copy(alpha = 0.6f) else Color.Black.copy(
+                            alpha = 0.8f
+                        ),
+                        fontFamily = FontFamily(Font(R.font.sf_pro))
+                    )
+                )
+            }
+        }
+    }
+}

android/app/src/main/java/me/kavishdevar/librepods/presentation/components/HearingHealthSettings.kt

@@ -0,0 +1,118 @@
+/*
+    LibrePods - AirPods liberated from Apple’s ecosystem
+    Copyright (C) 2025 LibrePods contributors
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+@file:OptIn(ExperimentalEncodingApi::class)
+
+package me.kavishdevar.librepods.presentation.components
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.HorizontalDivider
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.Font
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import androidx.navigation.NavController
+import me.kavishdevar.librepods.R
+import kotlin.io.encoding.ExperimentalEncodingApi
+
+@Composable
+fun HearingHealthSettings(
+    navController: NavController,
+    hasPPECapability: Boolean,
+    hasHearingAidCapability: Boolean,
+    vendorIdHook: Boolean
+) {
+    val isDarkTheme = isSystemInDarkTheme()
+    val textColor = if (isDarkTheme) Color.White else Color.Black
+    val backgroundColor = if (isDarkTheme) Color(0xFF1C1C1E) else Color(0xFFFFFFFF)
+    val shouldShowHearingAid = hasHearingAidCapability && vendorIdHook
+
+    if (hasPPECapability && shouldShowHearingAid) {
+        Box(
+            modifier = Modifier
+                .background(if (isDarkTheme) Color(0xFF000000) else Color(0xFFF2F2F7))
+                .padding(horizontal = 16.dp, vertical = 4.dp)
+        ){
+            Text(
+                text = stringResource(R.string.hearing_health),
+                style = TextStyle(
+                    fontSize = 14.sp,
+                    fontWeight = FontWeight.Bold,
+                    color = textColor.copy(alpha = 0.6f),
+                    fontFamily = FontFamily(Font(R.font.sf_pro))
+                )
+            )
+        }
+        Column(
+            modifier = Modifier
+                .clip(RoundedCornerShape(28.dp))
+                .fillMaxWidth()
+                .background(backgroundColor, RoundedCornerShape(28.dp))
+                .padding(top = 2.dp)
+        ) {
+            NavigationButton(
+                to = "hearing_protection",
+                name = stringResource(R.string.hearing_protection),
+                navController = navController,
+                independent = false
+            )
+
+            HorizontalDivider(
+                thickness = 1.dp,
+                color = Color(0x40888888),
+                modifier = Modifier
+                    .padding(horizontal = 12.dp)
+            )
+
+
+            NavigationButton(
+                to = "hearing_aid",
+                name = stringResource(R.string.hearing_aid),
+                navController = navController,
+                independent = false
+            )
+        }
+    } else if (shouldShowHearingAid) {
+        NavigationButton(
+            to = "hearing_aid",
+            name = stringResource(R.string.hearing_aid),
+            navController = navController
+        )
+    } else if (hasPPECapability) {
+        NavigationButton(
+            to = "hearing_protection",
+            name = stringResource(R.string.hearing_protection),
+            title = stringResource(R.string.hearing_health),
+            navController = navController
+        )
+    }
+}

android/app/src/main/java/me/kavishdevar/librepods/presentation/components/MicrophoneSettings.kt

@@ -18,9 +18,8 @@
 
 @file:OptIn(ExperimentalEncodingApi::class)
 
-package me.kavishdevar.librepods.composables
+package me.kavishdevar.librepods.presentation.components
 
-import android.util.Log
 import androidx.compose.foundation.background
 import androidx.compose.foundation.gestures.detectDragGesturesAfterLongPress
 import androidx.compose.foundation.gestures.detectTapGestures
@@ -35,38 +34,41 @@ import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.DisposableEffect
-import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableLongStateOf
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.geometry.Offset
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.hapticfeedback.HapticFeedbackType
 import androidx.compose.ui.input.pointer.pointerInput
 import androidx.compose.ui.layout.onGloballyPositioned
 import androidx.compose.ui.layout.positionInParent
 import androidx.compose.ui.platform.LocalDensity
+import androidx.compose.ui.platform.LocalHapticFeedback
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.TextStyle
 import androidx.compose.ui.text.font.Font
 import androidx.compose.ui.text.font.FontFamily
-import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import dev.chrisbanes.haze.HazeState
 import dev.chrisbanes.haze.materials.ExperimentalHazeMaterialsApi
+import kotlinx.coroutines.launch
 import me.kavishdevar.librepods.R
-import me.kavishdevar.librepods.services.ServiceManager
-import me.kavishdevar.librepods.utils.AACPManager
 import kotlin.io.encoding.ExperimentalEncodingApi
 
 @ExperimentalHazeMaterialsApi
 @Composable
-fun MicrophoneSettings(hazeState: HazeState) {
+fun MicrophoneSettings(
+    hazeState: HazeState,
+    micModeValue: Byte,
+    onMicModeValueChanged: (Byte) -> Unit
+) {
     val isDarkTheme = isSystemInDarkTheme()
     val textColor = if (isDarkTheme) Color.White else Color.Black
     val backgroundColor = if (isDarkTheme) Color(0xFF1C1C1E) else Color(0xFFFFFFFF)
@@ -77,11 +79,6 @@ fun MicrophoneSettings(hazeState: HazeState) {
             .background(backgroundColor, RoundedCornerShape(28.dp))
             .padding(top = 2.dp)
     ) {
-        val service = ServiceManager.getService()!!
-        val micModeValue = service.aacpManager.controlCommandStatusList.find {
-            it.identifier == AACPManager.Companion.ControlCommandIdentifiers.MIC_MODE
-        }?.value?.get(0) ?: 0x00.toByte()
-
         var selectedMode by remember {
             mutableStateOf(
                 when (micModeValue) {
@@ -98,42 +95,13 @@ fun MicrophoneSettings(hazeState: HazeState) {
         var lastDismissTime by remember { mutableLongStateOf(0L) }
         val reopenThresholdMs = 250L
 
-        val listener = object : AACPManager.ControlCommandListener {
-            override fun onControlCommandReceived(controlCommand: AACPManager.ControlCommand) {
-                if (AACPManager.Companion.ControlCommandIdentifiers.fromByte(controlCommand.identifier) ==
-                    AACPManager.Companion.ControlCommandIdentifiers.MIC_MODE
-                ) {
-                    selectedMode = when (controlCommand.value[0]) {
-                        0x00.toByte() -> "Automatic"
-                        0x01.toByte() -> "Always Right"
-                        0x02.toByte() -> "Always Left"
-                        else -> "Automatic"
-                    }
-                    Log.d("MicrophoneSettings", "Microphone mode received: $selectedMode")
-                }
-            }
-        }
-
-        LaunchedEffect(Unit) {
-            service.aacpManager.registerControlCommandListener(
-                AACPManager.Companion.ControlCommandIdentifiers.MIC_MODE,
-                listener
-            )
-        }
-
-        DisposableEffect(Unit) {
-            onDispose {
-                service.aacpManager.unregisterControlCommandListener(
-                    AACPManager.Companion.ControlCommandIdentifiers.MIC_MODE,
-                    listener
-                )
-            }
-        }
-
         val density = LocalDensity.current
         val itemHeightPx = with(density) { 48.dp.toPx() }
         var parentHoveredIndex by remember { mutableStateOf<Int?>(null) }
         var parentDragActive by remember { mutableStateOf(false) }
+        var previousIdx by remember { mutableStateOf<Int?>(null) }
+        val haptics = LocalHapticFeedback.current
+        val scope = rememberCoroutineScope()
         val microphoneAutomaticText = stringResource(R.string.microphone_automatic)
         val microphoneAlwaysRightText = stringResource(R.string.microphone_always_right)
         val microphoneAlwaysLeftText = stringResource(R.string.microphone_always_left)
@@ -173,7 +141,11 @@ fun MicrophoneSettings(hazeState: HazeState) {
                             val touch = touchOffset ?: current
                             val posInPopupY = current.y - touch.y
                             val idx = (posInPopupY / itemHeightPx).toInt()
+                            if (idx != previousIdx) {
+                                scope.launch { haptics.performHapticFeedback(HapticFeedbackType.SegmentTick) }
+                            }
                             parentHoveredIndex = idx
+                            previousIdx = idx
                         },
                         onDragEnd = {
                             parentDragActive = false
@@ -194,12 +166,16 @@ fun MicrophoneSettings(hazeState: HazeState) {
                                         options[2] -> 0x02
                                         else -> 0x00
                                     }
-                                    service.aacpManager.sendControlCommand(
-                                        AACPManager.Companion.ControlCommandIdentifiers.MIC_MODE.value,
-                                        byteArrayOf(byteValue.toByte())
-                                    )
+//                                    service.aacpManager.sendControlCommand(
+//                                        AACPManager.Companion.ControlCommandIdentifiers.MIC_MODE.value,
+//                                        byteArrayOf(byteValue.toByte())
+//                                    )
+                                    onMicModeValueChanged(byteValue.toByte())
                                 }
                             }
+                            if (parentHoveredIndex != null && parentHoveredIndex in 0..2) {
+                                scope.launch { haptics.performHapticFeedback(HapticFeedbackType.GestureEnd) }
+                            }
                             parentHoveredIndex = null
                         },
                         onDragCancel = {
@@ -277,10 +253,7 @@ fun MicrophoneSettings(hazeState: HazeState) {
                             microphoneAlwaysLeftText -> 0x02
                             else -> 0x00
                         }
-                        service.aacpManager.sendControlCommand(
-                            AACPManager.Companion.ControlCommandIdentifiers.MIC_MODE.value,
-                            byteArrayOf(byteValue.toByte())
-                        )
+                        onMicModeValueChanged(byteValue.toByte())
                     },
                     hazeState = hazeState
                 )
@@ -288,10 +261,3 @@ fun MicrophoneSettings(hazeState: HazeState) {
         }
     }
 }
-
-@ExperimentalHazeMaterialsApi
-@Preview
-@Composable
-fun MicrophoneSettingsPreview() {
-    MicrophoneSettings(HazeState())
-}

android/app/src/main/java/me/kavishdevar/librepods/presentation/components/NavigationButton.kt

@@ -16,7 +16,7 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-package me.kavishdevar.librepods.composables
+package me.kavishdevar.librepods.presentation.components
 
 import androidx.compose.animation.animateColorAsState
 import androidx.compose.animation.core.tween
@@ -35,21 +35,25 @@ import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.hapticfeedback.HapticFeedbackType
 import androidx.compose.ui.input.pointer.pointerInput
 import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.platform.LocalHapticFeedback
 import androidx.compose.ui.text.TextStyle
 import androidx.compose.ui.text.font.Font
 import androidx.compose.ui.text.font.FontFamily
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.tooling.preview.Preview
-import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.Dp
+import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import androidx.navigation.NavController
+import kotlinx.coroutines.launch
 import me.kavishdevar.librepods.R
 
 @Composable
@@ -62,10 +66,14 @@ fun NavigationButton(
     description: String? = null,
     currentState: String? = null,
     height: Dp = 58.dp,
+    enabled: Boolean = true
 ) {
     val isDarkTheme = isSystemInDarkTheme()
     var backgroundColor by remember { mutableStateOf(if (isDarkTheme) Color(0xFF1C1C1E) else Color(0xFFFFFFFF)) }
     val animatedBackgroundColor by animateColorAsState(targetValue = backgroundColor, animationSpec = tween(durationMillis = 500))
+    val haptics = LocalHapticFeedback.current
+    val scope = rememberCoroutineScope()
+
     Column {
         if (title != null) {
             Box(
@@ -79,23 +87,34 @@ fun NavigationButton(
                         fontSize = 14.sp,
                         fontWeight = FontWeight.Bold,
                         color = if (isDarkTheme) Color.White.copy(alpha = 0.6f) else Color.Black.copy(alpha = 0.6f),
+                        fontFamily = FontFamily(Font(R.font.sf_pro))
                     )
                 )
             }
         }
         Row(
             modifier = Modifier
-                .background(animatedBackgroundColor, RoundedCornerShape(if (independent) 28.dp else 0.dp))
+                .background(
+                    animatedBackgroundColor,
+                    RoundedCornerShape(if (independent) 28.dp else 0.dp)
+                )
                 .height(height)
                 .pointerInput(Unit) {
                     detectTapGestures(
                         onPress = {
-                            backgroundColor = if (isDarkTheme) Color(0x40888888) else Color(0x40D9D9D9)
-                            tryAwaitRelease()
-                            backgroundColor = if (isDarkTheme) Color(0xFF1C1C1E) else Color(0xFFFFFFFF)
+                            if (enabled) {
+                                backgroundColor =
+                                    if (isDarkTheme) Color(0x40888888) else Color(0x40D9D9D9)
+                                tryAwaitRelease()
+                                backgroundColor =
+                                    if (isDarkTheme) Color(0xFF1C1C1E) else Color(0xFFFFFFFF)
+                            }
                         },
                         onTap = {
-                            if (onClick != null) onClick() else navController.navigate(to)
+                            if (enabled) {
+                                scope.launch { haptics.performHapticFeedback(HapticFeedbackType.ContextClick) }
+                                if (onClick != null) onClick() else navController.navigate(to)
+                            }
                         }
                     )
                 }

android/app/src/main/java/me/kavishdevar/librepods/presentation/components/NoiseControlButton.kt

@@ -16,7 +16,7 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-package me.kavishdevar.librepods.composables
+package me.kavishdevar.librepods.presentation.components
 
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.interaction.MutableInteractionSource
@@ -74,4 +74,4 @@ fun NoiseControlButtonPreview() {
         onClick = {},
         textColor = Color.White,
     )
-}
+}

android/app/src/main/java/me/kavishdevar/librepods/presentation/components/NoiseControlSettings.kt

@@ -18,14 +18,9 @@
 
 @file:OptIn(ExperimentalEncodingApi::class)
 
-package me.kavishdevar.librepods.composables
+package me.kavishdevar.librepods.presentation.components
 
 import android.annotation.SuppressLint
-import android.content.BroadcastReceiver
-import android.content.Context
-import android.content.Intent
-import android.content.IntentFilter
-import android.os.Build
 import androidx.compose.animation.core.AnimationSpec
 import androidx.compose.animation.core.Spring
 import androidx.compose.animation.core.SpringSpec
@@ -60,64 +55,49 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.alpha
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.ImageBitmap
-import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.platform.LocalDensity
 import androidx.compose.ui.res.imageResource
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.Font
+import androidx.compose.ui.text.font.FontFamily
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.style.TextAlign
-import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.IntOffset
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import androidx.compose.ui.zIndex
 import me.kavishdevar.librepods.R
-import me.kavishdevar.librepods.constants.AirPodsNotifications
-import me.kavishdevar.librepods.constants.NoiseControlMode
-import me.kavishdevar.librepods.services.AirPodsService
-import me.kavishdevar.librepods.utils.AACPManager
+import me.kavishdevar.librepods.data.NoiseControlMode
 import kotlin.io.encoding.ExperimentalEncodingApi
 import kotlin.math.roundToInt
 
 @SuppressLint("UnspecifiedRegisterReceiverFlag", "UnusedBoxWithConstraintsScope")
 @Composable
 fun NoiseControlSettings(
-    service: AirPodsService,
+    showOffListeningMode: Boolean,
+    noiseControlModeValue: Int,
+    onNoiseControlModeChanged: (Int) -> Unit
 ) {
-    val context = LocalContext.current
-    val offListeningModeConfigValue = service.aacpManager.controlCommandStatusList.find {
-        it.identifier == AACPManager.Companion.ControlCommandIdentifiers.ALLOW_OFF_OPTION
-    }?.value?.takeIf { it.isNotEmpty() }?.get(0) == 1.toByte()
-    val offListeningMode = remember { mutableStateOf(offListeningModeConfigValue) }
-
-    val offListeningModeListener = object: AACPManager.ControlCommandListener {
-        override fun onControlCommandReceived(controlCommand: AACPManager.ControlCommand) {
-            offListeningMode.value = controlCommand.value[0] == 1.toByte()
-        }
-    }
-
-    service.aacpManager.registerControlCommandListener(
-        AACPManager.Companion.ControlCommandIdentifiers.ALLOW_OFF_OPTION,
-        offListeningModeListener
-    )
-
     val isDarkTheme = isSystemInDarkTheme()
     val backgroundColor = if (isDarkTheme) Color(0xFF1C1C1E) else Color(0xFFE3E3E8)
     val textColor = if (isDarkTheme) Color.White else Color.Black
     val textColorSelected = if (isDarkTheme) Color.White else Color.Black
     val selectedBackground = if (isDarkTheme) Color(0xBF5C5A5F) else Color(0xFFFFFFFF)
 
+
+
     val noiseControlMode = remember { mutableStateOf(NoiseControlMode.OFF) }
 
     val d1a = remember { mutableFloatStateOf(0f) }
     val d2a = remember { mutableFloatStateOf(0f) }
     val d3a = remember { mutableFloatStateOf(0f) }
 
+    // this function exists solely for the dividers, should get rid of it
     fun onModeSelected(mode: NoiseControlMode, received: Boolean = false) {
         val previousMode = noiseControlMode.value
 
-        val targetMode = if (!offListeningMode.value && mode == NoiseControlMode.OFF) {
+        val targetMode = if (!showOffListeningMode && mode == NoiseControlMode.OFF) {
              NoiseControlMode.TRANSPARENCY
         } else {
             mode
@@ -125,9 +105,8 @@ fun NoiseControlSettings(
 
         noiseControlMode.value = targetMode
 
-        if (!received && targetMode != previousMode) {
-            service.aacpManager.sendControlCommand(identifier = AACPManager.Companion.ControlCommandIdentifiers.LISTENING_MODE.value, value = targetMode.ordinal + 1)
-        }
+        if (!received && targetMode != previousMode) onNoiseControlModeChanged(targetMode.ordinal + 1)
+
 
         when (noiseControlMode.value) {
             NoiseControlMode.NOISE_CANCELLATION -> {
@@ -153,32 +132,12 @@ fun NoiseControlSettings(
         }
     }
 
-    val noiseControlReceiver = remember {
-        object : BroadcastReceiver() {
-            override fun onReceive(context: Context, intent: Intent) {
-                if (intent.action == AirPodsNotifications.ANC_DATA) {
-                    noiseControlMode.value = NoiseControlMode.entries.toTypedArray()[intent.getIntExtra("data", 3) - 1]
-                    onModeSelected(noiseControlMode.value, true)
-                } else if (intent.action == AirPodsNotifications.DISCONNECT_RECEIVERS) {
-                    try {
-                        context.unregisterReceiver(this)
-                    } catch (e: IllegalArgumentException) {
-                        e.printStackTrace()
-                    }
-                }
-            }
-        }
-    }
 
-    val noiseControlIntentFilter = IntentFilter().apply {
-        addAction(AirPodsNotifications.ANC_DATA)
-        addAction(AirPodsNotifications.DISCONNECT_RECEIVERS)
-    }
-    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
-        context.registerReceiver(noiseControlReceiver, noiseControlIntentFilter, Context.RECEIVER_EXPORTED)
-    } else {
-        context.registerReceiver(noiseControlReceiver, noiseControlIntentFilter)
-    }
+    val index = (noiseControlModeValue - 1).coerceIn(0, NoiseControlMode.entries.size - 1)
+    noiseControlMode.value = NoiseControlMode.entries[index]
+
+    onModeSelected(noiseControlMode.value, received = true)
+
     Box(
         modifier = Modifier
             .background(if (isDarkTheme) Color(0xFF000000) else Color(0xFFF2F2F7))
@@ -190,17 +149,18 @@ fun NoiseControlSettings(
                 fontSize = 14.sp,
                 fontWeight = FontWeight.Bold,
                 color = textColor.copy(alpha = 0.6f),
+                fontFamily = FontFamily(Font(R.font.sf_pro))
             )
         )
     }
-    @Suppress("COMPOSE_APPLIER_CALL_MISMATCH")
+
     BoxWithConstraints(
         modifier = Modifier
             .fillMaxWidth()
             .padding(vertical = 8.dp)
     ) {
         val density = LocalDensity.current
-        val buttonCount = if (offListeningMode.value) 4 else 3
+        val buttonCount = if (showOffListeningMode) 4 else 3
         val buttonWidth = maxWidth / buttonCount
 
         val isDragging = remember { mutableStateOf(false) }
@@ -208,10 +168,10 @@ fun NoiseControlSettings(
             mutableFloatStateOf(
                 with(density) {
                     when(noiseControlMode.value) {
-                        NoiseControlMode.OFF -> if (offListeningMode.value) 0f else buttonWidth.toPx()
-                        NoiseControlMode.TRANSPARENCY -> if (offListeningMode.value) buttonWidth.toPx() else 0f
-                        NoiseControlMode.ADAPTIVE -> if (offListeningMode.value) (buttonWidth * 2).toPx() else buttonWidth.toPx()
-                        NoiseControlMode.NOISE_CANCELLATION -> if (offListeningMode.value) (buttonWidth * 3).toPx() else (buttonWidth * 2).toPx()
+                        NoiseControlMode.OFF -> if (showOffListeningMode) 0f else buttonWidth.toPx()
+                        NoiseControlMode.TRANSPARENCY -> if (showOffListeningMode) buttonWidth.toPx() else 0f
+                        NoiseControlMode.ADAPTIVE -> if (showOffListeningMode) (buttonWidth * 2).toPx() else buttonWidth.toPx()
+                        NoiseControlMode.NOISE_CANCELLATION -> if (showOffListeningMode) (buttonWidth * 3).toPx() else (buttonWidth * 2).toPx()
                     }
                 }
             )
@@ -224,10 +184,10 @@ fun NoiseControlSettings(
         )
 
         val targetOffset = buttonWidth * when(noiseControlMode.value) {
-            NoiseControlMode.OFF -> if (offListeningMode.value) 0 else 1
-            NoiseControlMode.TRANSPARENCY -> if (offListeningMode.value) 1 else 0
-            NoiseControlMode.ADAPTIVE -> if (offListeningMode.value) 2 else 1
-            NoiseControlMode.NOISE_CANCELLATION -> if (offListeningMode.value) 3 else 2
+            NoiseControlMode.OFF -> if (showOffListeningMode) 0 else 1
+            NoiseControlMode.TRANSPARENCY -> if (showOffListeningMode) 1 else 0
+            NoiseControlMode.ADAPTIVE -> if (showOffListeningMode) 2 else 1
+            NoiseControlMode.NOISE_CANCELLATION -> if (showOffListeningMode) 3 else 2
         }
 
         val animatedOffset by animateFloatAsState(
@@ -250,7 +210,7 @@ fun NoiseControlSettings(
                 Row(
                     modifier = Modifier.fillMaxWidth()
                 ) {
-                    if (offListeningMode.value) {
+                    if (showOffListeningMode) {
                         NoiseControlButton(
                             icon = ImageBitmap.imageResource(R.drawable.noise_cancellation),
                             onClick = { onModeSelected(NoiseControlMode.OFF) },
@@ -323,13 +283,12 @@ fun NoiseControlSettings(
                                 val position = dragOffset / with(density) { buttonWidth.toPx() }
                                 val newIndex = position.roundToInt()
                                 val newMode = when(newIndex) {
-                                    0 -> if (offListeningMode.value) NoiseControlMode.OFF else NoiseControlMode.TRANSPARENCY
-                                    1 -> if (offListeningMode.value) NoiseControlMode.TRANSPARENCY else NoiseControlMode.ADAPTIVE
-                                    2 -> if (offListeningMode.value) NoiseControlMode.ADAPTIVE else NoiseControlMode.NOISE_CANCELLATION
+                                    0 -> if (showOffListeningMode) NoiseControlMode.OFF else NoiseControlMode.TRANSPARENCY
+                                    1 -> if (showOffListeningMode) NoiseControlMode.TRANSPARENCY else NoiseControlMode.ADAPTIVE
+                                    2 -> if (showOffListeningMode) NoiseControlMode.ADAPTIVE else NoiseControlMode.NOISE_CANCELLATION
                                     3 -> NoiseControlMode.NOISE_CANCELLATION
                                     else -> noiseControlMode.value // Keep current if index is invalid
                                 }
-                                // Call onModeSelected which now handles service call but not callback
                                 onModeSelected(newMode)
                             }
                         )
@@ -347,7 +306,7 @@ fun NoiseControlSettings(
                         .fillMaxWidth()
                         .zIndex(1f)
                 ) {
-                    if (offListeningMode.value) {
+                    if (showOffListeningMode) {
                         NoiseControlButton(
                             icon = ImageBitmap.imageResource(R.drawable.noise_cancellation),
                             onClick = { onModeSelected(NoiseControlMode.OFF) },
@@ -406,7 +365,7 @@ fun NoiseControlSettings(
                     .fillMaxWidth()
                     .padding(top = 4.dp)
             ) {
-                if (offListeningMode.value) {
+                if (showOffListeningMode) {
                     Text(
                         text = stringResource(R.string.off),
                         style = TextStyle(fontSize = 12.sp, color = textColor),
@@ -436,9 +395,3 @@ fun NoiseControlSettings(
         }
     }
 }
-
-@Preview
-@Composable
-fun NoiseControlSettingsPreview() {
-    NoiseControlSettings(AirPodsService())
-}

android/app/src/main/java/me/kavishdevar/librepods/presentation/components/PressAndHoldSettings.kt

@@ -16,17 +16,13 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-package me.kavishdevar.librepods.composables
+package me.kavishdevar.librepods.presentation.components
 
-import android.content.Context
-import android.content.res.Configuration
 import androidx.compose.foundation.background
 import androidx.compose.foundation.isSystemInDarkTheme
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material3.HorizontalDivider
@@ -35,38 +31,34 @@ import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
 import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.TextStyle
 import androidx.compose.ui.text.font.Font
 import androidx.compose.ui.text.font.FontFamily
 import androidx.compose.ui.text.font.FontWeight
-import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import androidx.navigation.NavController
 import me.kavishdevar.librepods.R
-import me.kavishdevar.librepods.constants.StemAction
+import me.kavishdevar.librepods.data.StemAction
 
 @Composable
-fun PressAndHoldSettings(navController: NavController) {
+fun PressAndHoldSettings(
+    navController: NavController,
+    leftAction: StemAction,
+    rightAction: StemAction
+) {
     val isDarkTheme = isSystemInDarkTheme()
     val textColor = if (isDarkTheme) Color.White else Color.Black
     val dividerColor = Color(0x40888888)
 
-    val context = LocalContext.current
-    val sharedPreferences = context.getSharedPreferences("settings", Context.MODE_PRIVATE)
-
-    val leftAction = sharedPreferences.getString("left_long_press_action", StemAction.CYCLE_NOISE_CONTROL_MODES.name)
-    val rightAction = sharedPreferences.getString("right_long_press_action", StemAction.CYCLE_NOISE_CONTROL_MODES.name)
-
-    val leftActionText = when (StemAction.valueOf(leftAction ?: StemAction.CYCLE_NOISE_CONTROL_MODES.name)) {
+    val leftActionText = when (leftAction) {
         StemAction.CYCLE_NOISE_CONTROL_MODES -> stringResource(R.string.noise_control)
         StemAction.DIGITAL_ASSISTANT -> "Digital Assistant"
         else -> "INVALID!!"
     }
 
-    val rightActionText = when (StemAction.valueOf(rightAction ?: StemAction.CYCLE_NOISE_CONTROL_MODES.name)) {
+    val rightActionText = when (rightAction) {
         StemAction.CYCLE_NOISE_CONTROL_MODES -> stringResource(R.string.noise_control)
         StemAction.DIGITAL_ASSISTANT -> "Digital Assistant"
         else -> "INVALID!!"
@@ -114,9 +106,3 @@ fun PressAndHoldSettings(navController: NavController) {
         )
     }
 }
-
-@Preview(uiMode = Configuration.UI_MODE_NIGHT_YES)
-@Composable
-fun PressAndHoldSettingsPreview() {
-    PressAndHoldSettings(navController = NavController(LocalContext.current))
-}

android/app/src/main/java/me/kavishdevar/librepods/presentation/components/StyledBottomSheet.kt

@@ -0,0 +1,87 @@
+package me.kavishdevar.librepods.presentation.components
+
+import androidx.compose.animation.core.animateFloatAsState
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.ModalBottomSheet
+import androidx.compose.material3.SheetValue
+import androidx.compose.material3.rememberModalBottomSheetState
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.lerp
+import com.kyant.backdrop.backdrops.LayerBackdrop
+import com.kyant.backdrop.backdrops.rememberLayerBackdrop
+import com.kyant.backdrop.drawBackdrop
+import com.kyant.backdrop.effects.blur
+import com.kyant.backdrop.effects.lens
+import com.kyant.backdrop.effects.vibrancy
+
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun StyledBottomSheet(
+    visible: Boolean,
+    onDismiss: () -> Unit,
+    backdrop: LayerBackdrop,
+    content: @Composable (innerBackdrop: LayerBackdrop, progress: Float) -> Unit
+) {
+    if (!visible) return
+
+    val isDarkTheme = isSystemInDarkTheme()
+    val sheetState = rememberModalBottomSheetState(false) // move this to parent composable
+
+    val isExpanded =  sheetState.targetValue == SheetValue.Expanded
+
+    val progress by animateFloatAsState(
+        targetValue = if (isExpanded) 1f else 0f,
+        label = "sheetProgress"
+    )
+
+    val animatedCorner = lerp(48.dp, 42.dp, progress)
+
+    ModalBottomSheet(
+        onDismissRequest = onDismiss,
+        sheetState = sheetState,
+        containerColor = Color.Transparent,
+        dragHandle = { },
+        shape = RoundedCornerShape(animatedCorner),
+        scrimColor = Color.Transparent,
+        modifier = Modifier.padding(4.dp)
+    ) {
+        val innerBackdrop = rememberLayerBackdrop()
+        Box(
+            modifier = Modifier
+                .fillMaxWidth()
+                .clip(RoundedCornerShape(animatedCorner))
+                .drawBackdrop(
+                    backdrop = backdrop,
+                    exportedBackdrop = innerBackdrop,
+                    shape = { RoundedCornerShape(animatedCorner) },
+                    effects = {
+                        vibrancy()
+                        blur(4f.dp.toPx())
+                        lens(12f.dp.toPx(), 48f.dp.toPx(), true)
+                    },
+                    onDrawSurface = {
+                        drawRect(
+                            if (isDarkTheme) Color.DarkGray.copy(alpha = 0.3f) else Color(
+                                0xFFE0E0E0
+                            ).copy(alpha = 0.45f)
+                        )
+                    }
+                )
+                .padding(top = 24.dp)
+                .padding(horizontal = 16.dp)
+        ) {
+            content(innerBackdrop, progress)
+        }
+    }
+}

android/app/src/main/java/me/kavishdevar/librepods/presentation/components/StyledButton.kt

@@ -16,7 +16,7 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-package me.kavishdevar.librepods.composables
+package me.kavishdevar.librepods.presentation.components
 
 import android.graphics.RuntimeShader
 import android.os.Build
@@ -46,7 +46,9 @@ import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.ShaderBrush
 import androidx.compose.ui.graphics.isSpecified
 import androidx.compose.ui.graphics.toArgb
+import androidx.compose.ui.hapticfeedback.HapticFeedbackType
 import androidx.compose.ui.input.pointer.pointerInput
+import androidx.compose.ui.platform.LocalHapticFeedback
 import androidx.compose.ui.semantics.Role
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.util.fastCoerceAtMost
@@ -55,7 +57,7 @@ import androidx.compose.ui.util.lerp
 import com.kyant.backdrop.Backdrop
 import com.kyant.backdrop.drawBackdrop
 import com.kyant.backdrop.effects.blur
-import com.kyant.backdrop.effects.refraction
+import com.kyant.backdrop.effects.lens
 import com.kyant.backdrop.effects.vibrancy
 import com.kyant.backdrop.highlight.Highlight
 import kotlinx.coroutines.launch
@@ -75,9 +77,12 @@ fun StyledButton(
     tint: Color = Color.Unspecified,
     surfaceColor: Color = Color.Unspecified,
     maxScale: Float = 0.1f,
+    enabled: Boolean = true,
     content: @Composable RowScope.() -> Unit,
 ) {
-    val animationScope = rememberCoroutineScope()
+    val isInteractive = enabled && isInteractive
+    val scope = rememberCoroutineScope()
+    val haptics = LocalHapticFeedback.current
     val progressAnimation = remember { Animatable(0f) }
     var pressStartPosition by remember { mutableStateOf(Offset.Zero) }
     val offsetAnimation = remember { Animatable(Offset.Zero, Offset.VectorConverter) }
@@ -122,8 +127,8 @@ half4 main(float2 coord) {
                             } else {
                                 drawRect(Color.White.copy(0.1f))
                             }
-                            if (surfaceColor.isSpecified) {
-                                val color = if (!isInteractive && isPressed) {
+                            if (surfaceColor.isSpecified && enabled) {
+                                val color = if (isPressed) {
                                     Color(
                                         red = surfaceColor.red * 0.5f,
                                         green = surfaceColor.green * 0.5f,
@@ -134,6 +139,11 @@ half4 main(float2 coord) {
                                     surfaceColor
                                 }
                                 drawRect(color)
+                            } else {
+                                if (isPressed) {
+                                    drawRect(Color.Black.copy(alpha = 0.4f))
+                                    drawRect(Color.White.copy(alpha = 0.2f))
+                                }
                             }
                         },
                         onDrawFront = null,
@@ -146,7 +156,12 @@ half4 main(float2 coord) {
                         effects = {
                             vibrancy()
                             blur(2f.dp.toPx())
-                            refraction(12f.dp.toPx(), 24f.dp.toPx())
+                            lens(
+                                refractionHeight = 12f.dp.toPx(),
+                                refractionAmount = 24f.dp.toPx(),
+                                depthEffect = true,
+                                chromaticAberration = true
+                            )
                         },
                         layerBlock = {
                             val width = size.width
@@ -158,19 +173,21 @@ half4 main(float2 coord) {
                             val maxOffset = size.minDimension
                             val initialDerivative = 0.05f
                             val offset = offsetAnimation.value
-                            translationX = maxOffset * tanh(initialDerivative * offset.x / maxOffset)
-                            translationY = maxOffset * tanh(initialDerivative * offset.y / maxOffset)
+                            translationX =
+                                maxOffset * tanh(initialDerivative * offset.x / maxOffset)
+                            translationY =
+                                maxOffset * tanh(initialDerivative * offset.y / maxOffset)
 
                             val maxDragScale = 0.1f
                             val offsetAngle = atan2(offset.y, offset.x)
                             scaleX =
                                 scale +
-                                        maxDragScale * abs(cos(offsetAngle) * offset.x / size.maxDimension) *
-                                        (width / height).fastCoerceAtMost(1f)
+                                    maxDragScale * abs(cos(offsetAngle) * offset.x / size.maxDimension) *
+                                    (width / height).fastCoerceAtMost(1f)
                             scaleY =
                                 scale +
-                                        maxDragScale * abs(sin(offsetAngle) * offset.y / size.maxDimension) *
-                                        (height / width).fastCoerceAtMost(1f)
+                                    maxDragScale * abs(sin(offsetAngle) * offset.y / size.maxDimension) *
+                                    (height / width).fastCoerceAtMost(1f)
                         },
                         onDrawSurface = {
                             if (tint.isSpecified) {
@@ -204,7 +221,10 @@ half4 main(float2 coord) {
                                     interactiveHighlightShader.apply {
                                         val offset = pressStartPosition + offsetAnimation.value
                                         setFloatUniform("size", size.width, size.height)
-                                        setColorUniform("color", Color.White.copy(0.15f * progress).toArgb())
+                                        setColorUniform(
+                                            "color",
+                                            Color.White.copy(0.15f * progress).toArgb()
+                                        )
                                         setFloatUniform("radius", size.maxDimension)
                                         setFloatUniform(
                                             "offset",
@@ -231,31 +251,53 @@ half4 main(float2 coord) {
                 interactionSource = null,
                 indication = null,
                 role = Role.Button,
-                onClick = onClick
+                onClick = {
+                    if (enabled) {
+                        haptics.performHapticFeedback(HapticFeedbackType.ContextClick)
+                        onClick()
+                    }
+                }
             )
             .then(
                 if (isInteractive) {
-                    Modifier.pointerInput(animationScope) {
+                    Modifier.pointerInput(scope) {
                         val progressAnimationSpec = spring(0.5f, 300f, 0.001f)
                         val offsetAnimationSpec = spring(1f, 300f, Offset.VisibilityThreshold)
                         val onDragStop: () -> Unit = {
-                            animationScope.launch {
+                            scope.launch {
+                                launch { haptics.performHapticFeedback(HapticFeedbackType.Reject) }
                                 launch { progressAnimation.animateTo(0f, progressAnimationSpec) }
-                                launch { offsetAnimation.animateTo(Offset.Zero, offsetAnimationSpec) }
+                                launch {
+                                    offsetAnimation.animateTo(
+                                        Offset.Zero,
+                                        offsetAnimationSpec
+                                    )
+                                }
                             }
                         }
                         inspectDragGestures(
                             onDragStart = { down ->
                                 pressStartPosition = down.position
-                                animationScope.launch {
-                                    launch { progressAnimation.animateTo(1f, progressAnimationSpec) }
+                                scope.launch {
+                                    launch { haptics.performHapticFeedback(HapticFeedbackType.SegmentFrequentTick) }
+                                    launch {
+                                        progressAnimation.animateTo(
+                                            1f,
+                                            progressAnimationSpec
+                                        )
+                                    }
                                     launch { offsetAnimation.snapTo(Offset.Zero) }
                                 }
                             },
-                            onDragEnd = { onDragStop() },
+                            onDragEnd = {
+                                onDragStop()
+                            },
                             onDragCancel = onDragStop
                         ) { _, dragAmount ->
-                            animationScope.launch {
+                            scope.launch {
+                                if (dragAmount.getDistanceSquared() > 350) haptics.performHapticFeedback(
+                                    HapticFeedbackType.SegmentFrequentTick
+                                )
                                 offsetAnimation.snapTo(offsetAnimation.value + dragAmount)
                             }
                         }
@@ -269,7 +311,10 @@ half4 main(float2 coord) {
                                 isPressed = false
                             },
                             onTap = {
-                                onClick()
+                                if (enabled) {
+                                    haptics.performHapticFeedback(HapticFeedbackType.ContextClick)
+                                    onClick()
+                                }
                             }
                         )
                     }

android/app/src/main/java/me/kavishdevar/librepods/presentation/components/StyledDropdown.kt

@@ -16,7 +16,7 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-package me.kavishdevar.librepods.composables
+package me.kavishdevar.librepods.presentation.components
 
 import android.annotation.SuppressLint
 import androidx.compose.animation.AnimatedVisibility
@@ -49,14 +49,17 @@ import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
 import androidx.compose.ui.geometry.Offset
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.hapticfeedback.HapticFeedbackType
 import androidx.compose.ui.input.pointer.pointerInput
 import androidx.compose.ui.layout.onGloballyPositioned
+import androidx.compose.ui.platform.LocalHapticFeedback
 import androidx.compose.ui.text.TextStyle
 import androidx.compose.ui.text.font.Font
 import androidx.compose.ui.text.font.FontFamily
@@ -71,6 +74,7 @@ import dev.chrisbanes.haze.HazeTint
 import dev.chrisbanes.haze.hazeEffect
 import dev.chrisbanes.haze.materials.CupertinoMaterials
 import dev.chrisbanes.haze.materials.ExperimentalHazeMaterialsApi
+import kotlinx.coroutines.launch
 import me.kavishdevar.librepods.R
 
 @ExperimentalHazeMaterialsApi
@@ -110,6 +114,9 @@ fun StyledDropdown(
                     var hoveredIndex by remember { mutableStateOf<Int?>(null) }
                     val itemHeight = 48.dp
 
+                    val scope = rememberCoroutineScope()
+                    val haptics = LocalHapticFeedback.current
+
                     var popupSize by remember { mutableStateOf(IntSize(0, 0)) }
                     var lastDragPosition by remember { mutableStateOf<Offset?>(null) }
 
@@ -132,7 +139,12 @@ fun StyledDropdown(
                                     },
                                     onDrag = { change, _ ->
                                         val y = change.position.y
-                                        hoveredIndex = (y / itemHeight.toPx()).toInt()
+                                        val newHoveredIndex = (y / itemHeight.toPx()).toInt()
+                                        if (newHoveredIndex != hoveredIndex) {
+                                            scope.launch { haptics.performHapticFeedback(
+                                                HapticFeedbackType.SegmentTick) }
+                                        }
+                                        hoveredIndex = newHoveredIndex
                                         lastDragPosition = change.position
                                     },
                                     onDragEnd = {
@@ -144,6 +156,8 @@ fun StyledDropdown(
                                         if (withinBounds) {
                                             hoveredIndex?.let { idx ->
                                                 if (idx in options.indices) {
+                                                    scope.launch { haptics.performHapticFeedback(
+                                                        HapticFeedbackType.GestureEnd) }
                                                     onOptionSelected(options[idx])
                                                 }
                                             }
@@ -174,6 +188,7 @@ fun StyledDropdown(
                                         interactionSource = remember { MutableInteractionSource() },
                                         indication = null
                                     ) {
+                                        scope.launch { haptics.performHapticFeedback(HapticFeedbackType.ContextClick) }
                                         onOptionSelected(text)
                                         onDismissRequest()
                                     }

android/app/src/main/java/me/kavishdevar/librepods/presentation/components/StyledIconButton.kt

@@ -16,7 +16,7 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-package me.kavishdevar.librepods.composables
+package me.kavishdevar.librepods.presentation.components
 
 import android.graphics.RuntimeShader
 import android.os.Build
@@ -50,7 +50,10 @@ import androidx.compose.ui.graphics.layer.CompositingStrategy
 import androidx.compose.ui.graphics.layer.drawLayer
 import androidx.compose.ui.graphics.rememberGraphicsLayer
 import androidx.compose.ui.graphics.toArgb
+import androidx.compose.ui.hapticfeedback.HapticFeedbackType
 import androidx.compose.ui.input.pointer.pointerInput
+import androidx.compose.ui.platform.LocalDensity
+import androidx.compose.ui.platform.LocalHapticFeedback
 import androidx.compose.ui.text.TextStyle
 import androidx.compose.ui.text.font.Font
 import androidx.compose.ui.text.font.FontFamily
@@ -63,8 +66,7 @@ import androidx.compose.ui.util.lerp
 import com.kyant.backdrop.backdrops.LayerBackdrop
 import com.kyant.backdrop.backdrops.rememberLayerBackdrop
 import com.kyant.backdrop.drawBackdrop
-import com.kyant.backdrop.effects.blur
-import com.kyant.backdrop.effects.refractionWithDispersion
+import com.kyant.backdrop.effects.lens
 import com.kyant.backdrop.highlight.Highlight
 import com.kyant.backdrop.shadow.Shadow
 import kotlinx.coroutines.launch
@@ -78,14 +80,17 @@ import kotlin.math.tanh
 
 @Composable
 fun StyledIconButton(
-    onClick: () -> Unit,
-    icon: String,
-    darkMode: Boolean,
-    tint: Color = Color.Unspecified,
-    backdrop: LayerBackdrop = rememberLayerBackdrop(),
     modifier: Modifier = Modifier,
+    icon: String,
+    iconTint: Color = Color.Unspecified,
+    surfaceColor: Color = Color.Unspecified,
+    backdrop: LayerBackdrop = rememberLayerBackdrop(),
+    onClick: () -> Unit,
+    enabled: Boolean = true
 ) {
-    val animationScope = rememberCoroutineScope()
+    val haptics = LocalHapticFeedback.current
+    val darkMode = isSystemInDarkTheme()
+    val scope = rememberCoroutineScope()
     val progressAnimationSpec = spring(0.5f, 300f, 0.001f)
     val offsetAnimationSpec = spring(1f, 300f, Offset.VisibilityThreshold)
     val progressAnimation = remember { Animatable(0f) }
@@ -94,6 +99,7 @@ fun StyledIconButton(
     val innerShadowLayer = rememberGraphicsLayer().apply {
         compositingStrategy = CompositingStrategy.Offscreen
     }
+    val density = LocalDensity.current
 
     val interactiveHighlightShader = remember {
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
@@ -117,7 +123,12 @@ half4 main(float2 coord) {
     }
     val isDarkTheme = isSystemInDarkTheme()
     TextButton(
-        onClick = onClick,
+        onClick = {
+            if (enabled) {
+                scope.launch { haptics.performHapticFeedback(HapticFeedbackType.ContextClick) }
+                onClick()
+            }
+        },
         shape = RoundedCornerShape(56.dp),
         modifier = modifier
             .padding(horizontal = 12.dp)
@@ -132,6 +143,7 @@ half4 main(float2 coord) {
                     )
                 },
                 layerBlock = {
+                    if (!enabled) return@drawBackdrop
                     val width = size.width
                     val height = size.height
 
@@ -148,14 +160,20 @@ half4 main(float2 coord) {
                     val offsetAngle = atan2(offset.y, offset.x)
                     scaleX =
                         scale +
-                                maxDragScale * abs(cos(offsetAngle) * offset.x / size.maxDimension) *
-                                (width / height).fastCoerceAtMost(1f)
+                            maxDragScale * abs(cos(offsetAngle) * offset.x / size.maxDimension) *
+                            (width / height).fastCoerceAtMost(1f)
                     scaleY =
                         scale +
-                                maxDragScale * abs(sin(offsetAngle) * offset.y / size.maxDimension) *
-                                (height / width).fastCoerceAtMost(1f)
+                            maxDragScale * abs(sin(offsetAngle) * offset.y / size.maxDimension) *
+                            (height / width).fastCoerceAtMost(1f)
                 },
                 onDrawSurface = {
+                    if (!enabled) {
+                        drawRect(
+                            (if (isDarkTheme) Color(0xFFAFAFAF) else Color.White).copy(0.5f)
+                        )
+                        return@drawBackdrop
+                    }
                     val progress = progressAnimation.value.coerceIn(0f, 1f)
 
                     val shape = RoundedCornerShape(56.dp)
@@ -182,11 +200,21 @@ half4 main(float2 coord) {
                     }
                     drawLayer(innerShadowLayer)
 
+                    if (surfaceColor.isSpecified) {
+                        drawRect(surfaceColor)
+                    }
+
                     drawRect(
-                        (if (isDarkTheme) Color(0xFFAFAFAF) else Color.White).copy(progress.coerceIn(0.15f, 0.35f))
+                        (if (isDarkTheme) Color(0xFFAFAFAF) else Color.White).copy(
+                            progress.coerceIn(
+                                0.15f,
+                                0.35f
+                            )
+                        )
                     )
                 },
                 onDrawFront = {
+                    if (!enabled) return@drawBackdrop
                     val progress = progressAnimation.value.fastCoerceIn(0f, 1f)
                     if (progress > 0f) {
                         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU && interactiveHighlightShader != null) {
@@ -197,7 +225,10 @@ half4 main(float2 coord) {
                             interactiveHighlightShader.apply {
                                 val offset = pressStartPosition + offsetAnimation.value
                                 setFloatUniform("size", size.width, size.height)
-                                setColorUniform("color", Color.White.copy(0.15f * progress).toArgb())
+                                setColorUniform(
+                                    "color",
+                                    Color.White.copy(0.15f * progress).toArgb()
+                                )
                                 setFloatUniform("radius", size.maxDimension)
                                 setFloatUniform(
                                     "offset",
@@ -218,41 +249,56 @@ half4 main(float2 coord) {
                     }
                 },
                 effects = {
-                    refractionWithDispersion(6f.dp.toPx(), size.height / 2f)
-                    // blur(24f, TileMode.Decal)
+                    lens(
+                        refractionHeight = 6f.dp.toPx(),
+                        refractionAmount = size.height / 2f,
+                        depthEffect = true,
+                        chromaticAberration = true
+                    )
                 },
             )
-            .pointerInput(animationScope) {
+            .pointerInput(scope) {
                 val onDragStop: () -> Unit = {
-                    animationScope.launch {
-                        launch { progressAnimation.animateTo(0f, progressAnimationSpec) }
-                        launch { offsetAnimation.animateTo(Offset.Zero, offsetAnimationSpec) }
+                    if (enabled) {
+                        scope.launch {
+                            launch { haptics.performHapticFeedback(HapticFeedbackType.Reject) }
+                            launch { progressAnimation.animateTo(0f, progressAnimationSpec) }
+                            launch { offsetAnimation.animateTo(Offset.Zero, offsetAnimationSpec) }
+                        }
                     }
                 }
                 inspectDragGestures(
                     onDragStart = { down ->
-                        pressStartPosition = down.position
-                        animationScope.launch {
-                            launch { progressAnimation.animateTo(1f, progressAnimationSpec) }
-                            launch { offsetAnimation.snapTo(Offset.Zero) }
+                        if (enabled) {
+                            pressStartPosition = down.position
+                            scope.launch {
+                                launch { haptics.performHapticFeedback(HapticFeedbackType.SegmentFrequentTick) }
+                                launch { progressAnimation.animateTo(1f, progressAnimationSpec) }
+                                launch { offsetAnimation.snapTo(Offset.Zero) }
+                            }
                         }
                     },
                     onDragEnd = { onDragStop() },
                     onDragCancel = onDragStop
                 ) { _, dragAmount ->
-                    animationScope.launch {
-                        offsetAnimation.snapTo(offsetAnimation.value + dragAmount)
+                    scope.launch {
+                        if (enabled) {
+                            if (dragAmount.getDistanceSquared() > 350) haptics.performHapticFeedback(
+                                HapticFeedbackType.SegmentFrequentTick
+                            )
+                            offsetAnimation.snapTo(offsetAnimation.value + dragAmount)
+                        }
                     }
                 }
             }
-            .size(48.dp),
+            .size(with(density) { 48.sp.toDp() }),
     ) {
         Text(
             text = icon,
             style = TextStyle(
-                fontSize = 16.sp,
+                fontSize = 20.sp,
                 fontWeight = FontWeight.Normal,
-                color = if (tint.isSpecified) tint else if (darkMode) Color.White else Color.Black,
+                color = if (iconTint.isSpecified) iconTint else if (darkMode) Color.White else Color.Black,
                 fontFamily = FontFamily(Font(R.font.sf_pro))
             )
         )

android/app/src/main/java/me/kavishdevar/librepods/presentation/components/StyledInputField.kt

@@ -0,0 +1,154 @@
+package me.kavishdevar.librepods.presentation.components
+
+import android.R.attr.singleLine
+import androidx.compose.animation.core.animateDp
+import androidx.compose.animation.core.animateDpAsState
+import androidx.compose.animation.core.updateTransition
+import androidx.compose.foundation.background
+import androidx.compose.foundation.gestures.detectTapGestures
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.heightIn
+import androidx.compose.foundation.layout.offset
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.text.BasicTextField
+import androidx.compose.foundation.text.input.TextFieldLineLimits
+import androidx.compose.foundation.text.input.TextFieldState
+import androidx.compose.foundation.text.input.clearText
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.focus.FocusRequester
+import androidx.compose.ui.focus.focusRequester
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.SolidColor
+import androidx.compose.ui.input.pointer.pointerInput
+import androidx.compose.ui.platform.LocalDensity
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.Font
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import me.kavishdevar.librepods.R
+
+
+@Composable
+fun StyledInputField(
+    inputState: TextFieldState,
+    focusRequester: FocusRequester,
+    placeholder: String = "",
+    singleLine: Boolean = true
+){
+    val isDarkTheme = isSystemInDarkTheme()
+    val backgroundColor = if (isDarkTheme) Color(0xFF1C1C1E) else Color(0xFFFFFFFF)
+    val textColor = if (isDarkTheme) Color.White else Color.Black
+    val minHeight = if (singleLine) 58.dp else 120.dp
+    val verticalAlignment = if (singleLine) Alignment.CenterVertically else Alignment.Top
+    val hasText = inputState.text.isNotEmpty()
+    val density = LocalDensity.current
+    val spacerHeight by animateDpAsState(
+        targetValue = if (hasText) with(density) { 32.sp.toDp() } else 0.dp,
+        label = "labelSpacer"
+    )
+
+    val transition = updateTransition(hasText, label = "floating")
+    val yOffset by transition.animateDp(label = "y") {
+        if (it) with (density) { (-48).sp.toDp() } else 0.dp
+    }
+
+    Spacer(modifier = Modifier.height(spacerHeight))
+
+    Box(
+        modifier = Modifier.fillMaxWidth()
+    ) {
+        Row(
+            verticalAlignment = verticalAlignment,
+            modifier = Modifier
+                .fillMaxWidth()
+                .heightIn(min = minHeight)
+                .background(
+                    backgroundColor,
+                    RoundedCornerShape(28.dp)
+                )
+                .padding(horizontal = 16.dp, vertical = 8.dp)
+                .pointerInput(Unit) {
+                    detectTapGestures {
+                        focusRequester.requestFocus()
+                    }
+                }
+        ) {
+            BasicTextField(
+                state = inputState,
+                lineLimits = if (singleLine) TextFieldLineLimits.SingleLine else TextFieldLineLimits.Default,
+                textStyle = TextStyle(
+                    fontSize = 16.sp,
+                    color = textColor,
+                    fontFamily = FontFamily(Font(R.font.sf_pro))
+                ),
+                cursorBrush = SolidColor(textColor),
+                decorator = { innerTextField ->
+                    Row(
+                        modifier = Modifier.padding(top = if (singleLine) 0.dp else 16.dp),
+                        verticalAlignment = verticalAlignment,
+                    ) {
+                        Row(
+                            modifier = Modifier
+                                .weight(1f)
+                        ) {
+                            Box(
+                                modifier = Modifier
+                                    .weight(1f),
+                                contentAlignment = if (singleLine) Alignment.CenterStart else Alignment.TopStart
+                            ) {
+                                Text(
+                                    text = placeholder,
+                                    style = TextStyle(
+                                        fontSize = 16.sp,
+                                        fontWeight = FontWeight.Light,
+                                        fontFamily = FontFamily(Font(R.font.sf_pro)),
+                                        color = textColor.copy(alpha = 0.8f)
+                                    ),
+                                    modifier = Modifier
+                                        .offset(y = yOffset)
+                                )
+
+                                innerTextField()
+                            }
+                        }
+                        if (singleLine && !inputState.text.isEmpty()) {
+                            IconButton(
+                                onClick = {
+                                    inputState.clearText()
+                                }
+                            ) {
+                                Text(
+                                    text = "􀁡",
+                                    style = TextStyle(
+                                        fontSize = 16.sp,
+                                        fontFamily = FontFamily(Font(R.font.sf_pro)),
+                                        color = if (isDarkTheme) Color.White.copy(alpha = 0.6f) else Color.Black.copy(
+                                            alpha = 0.6f
+                                        )
+                                    ),
+                                )
+                            }
+                        }
+                    }
+                },
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(start = 8.dp)
+                    .focusRequester(focusRequester)
+            )
+        }
+    }
+}

android/app/src/main/java/me/kavishdevar/librepods/presentation/components/StyledScaffold.kt

@@ -16,7 +16,7 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-package me.kavishdevar.librepods.composables
+package me.kavishdevar.librepods.presentation.components
 
 import androidx.compose.foundation.isSystemInDarkTheme
 import androidx.compose.foundation.layout.Box
@@ -49,7 +49,6 @@ import androidx.compose.ui.unit.Dp
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import androidx.compose.ui.zIndex
-import androidx.navigation.NavController
 import com.kyant.backdrop.backdrops.LayerBackdrop
 import com.kyant.backdrop.backdrops.layerBackdrop
 import com.kyant.backdrop.backdrops.rememberLayerBackdrop
@@ -57,17 +56,15 @@ import dev.chrisbanes.haze.HazeProgressive
 import dev.chrisbanes.haze.HazeState
 import dev.chrisbanes.haze.HazeTint
 import dev.chrisbanes.haze.hazeEffect
-import dev.chrisbanes.haze.materials.ExperimentalHazeMaterialsApi
 import dev.chrisbanes.haze.rememberHazeState
 import me.kavishdevar.librepods.R
 
-@ExperimentalHazeMaterialsApi
 @Composable
 fun StyledScaffold(
     title: String,
     actionButtons: List<@Composable (backdrop: LayerBackdrop) -> Unit> = emptyList(),
     snackbarHostState: SnackbarHostState = remember { SnackbarHostState() },
-    content: @Composable (spacerValue: Dp, hazeState: HazeState) -> Unit
+    content: @Composable (spacerValue: Dp, hazeState: HazeState, bottomPadding: Dp) -> Unit
 ) {
     val isDarkTheme = isSystemInDarkTheme()
     val hazeState = rememberHazeState(blurEnabled = true)
@@ -80,14 +77,14 @@ fun StyledScaffold(
             .clip(RoundedCornerShape(52.dp))
     ) { paddingValues ->
         val topPadding = paddingValues.calculateTopPadding()
-        val bottomPadding = paddingValues.calculateBottomPadding()
+        val bottomPadding = paddingValues.calculateBottomPadding() + 16.dp
         val startPadding = paddingValues.calculateLeftPadding(LocalLayoutDirection.current)
         val endPadding = paddingValues.calculateRightPadding(LocalLayoutDirection.current)
 
         Box(
             modifier = Modifier
                 .fillMaxSize()
-                .padding(start = startPadding, end = endPadding, bottom = bottomPadding)
+                .padding(start = startPadding, end = endPadding)
         ) {
             val backdrop = rememberLayerBackdrop()
             Box(
@@ -127,13 +124,12 @@ fun StyledScaffold(
                 }
             }
 
-            content(topPadding + 64.dp, hazeState)
+            content(topPadding + 64.dp, hazeState, bottomPadding + 12.dp)
         }
     }
 }
 
 
-@ExperimentalHazeMaterialsApi
 @Composable
 fun StyledScaffold(
     title: String,
@@ -145,12 +141,11 @@ fun StyledScaffold(
         title = title,
         actionButtons = actionButtons,
         snackbarHostState = snackbarHostState,
-    ) { _, _ ->
+    ) { _, _, _->
         content()
     }
 }
 
-@ExperimentalHazeMaterialsApi
 @Composable
 fun StyledScaffold(
     title: String,
@@ -162,7 +157,7 @@ fun StyledScaffold(
         title = title,
         actionButtons = actionButtons,
         snackbarHostState = snackbarHostState,
-    ) { spacerValue, _ ->
+    ) { spacerValue, _, _ ->
         content(spacerValue)
     }
 }

android/app/src/main/java/me/kavishdevar/librepods/presentation/components/StyledSelectList.kt

@@ -16,7 +16,7 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-package me.kavishdevar.librepods.composables
+package me.kavishdevar.librepods.presentation.components
 
 import androidx.compose.animation.animateColorAsState
 import androidx.compose.animation.core.animateFloatAsState
@@ -29,6 +29,7 @@ import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.heightIn
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.wrapContentWidth
 import androidx.compose.foundation.shape.RoundedCornerShape
@@ -43,12 +44,13 @@ import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.hapticfeedback.HapticFeedbackType
 import androidx.compose.ui.input.pointer.pointerInput
+import androidx.compose.ui.platform.LocalHapticFeedback
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.text.TextStyle
 import androidx.compose.ui.text.font.Font
 import androidx.compose.ui.text.font.FontFamily
-import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import me.kavishdevar.librepods.R
@@ -59,19 +61,10 @@ data class SelectItem(
     val iconRes: Int? = null,
     val selected: Boolean,
     val onClick: () -> Unit,
+    val visible: Boolean = true,
     val enabled: Boolean = true
 )
 
-data class SelectItem2(
-    val name: String,
-    val description: String? = null,
-    val iconRes: Int? = null,
-    val selected: () -> Boolean,
-    val onClick: () -> Unit,
-    val enabled: Boolean = true
-)
-
-
 @Composable
 fun StyledSelectList(
     items: List<SelectItem>,
@@ -81,37 +74,48 @@ fun StyledSelectList(
     val backgroundColor = if (isDarkTheme) Color(0xFF1C1C1E) else Color(0xFFFFFFFF)
     val textColor = if (isDarkTheme) Color.White else Color.Black
 
+    val haptics = LocalHapticFeedback.current
+
     Column(
         modifier = modifier
             .fillMaxWidth()
             .background(backgroundColor, RoundedCornerShape(28.dp)),
         horizontalAlignment = Alignment.CenterHorizontally
     ) {
-        val visibleItems = items.filter { it.enabled }
+        val visibleItems = items.filter { it.visible }
         visibleItems.forEachIndexed { index, item ->
             val isFirst = index == 0
             val isLast = index == visibleItems.size - 1
             val hasIcon = item.iconRes != null
 
             val shape = when {
+                isFirst && isLast -> RoundedCornerShape(28.dp)
                 isFirst -> RoundedCornerShape(topStart = 28.dp, topEnd = 28.dp)
                 isLast -> RoundedCornerShape(bottomStart = 28.dp, bottomEnd = 28.dp)
                 else -> RoundedCornerShape(0.dp)
             }
-            var itemBackgroundColor by remember { mutableStateOf(backgroundColor) }
+            var itemBackgroundColor by remember { mutableStateOf(if (item.enabled) backgroundColor else if (isDarkTheme) Color(0x40050505) else Color(0x40D9D9D9)) }
             val animatedBackgroundColor by animateColorAsState(targetValue = itemBackgroundColor, animationSpec = tween(durationMillis = 500))
 
             Row(
                 modifier = Modifier
-                    .height(if (hasIcon) 72.dp else 55.dp)
+                    .heightIn(min = if (hasIcon) 72.dp else 55.dp)
                     .background(animatedBackgroundColor, shape)
                     .pointerInput(Unit) {
                         detectTapGestures(
                             onPress = {
-                                itemBackgroundColor = if (isDarkTheme) Color(0x40888888) else Color(0x40D9D9D9)
-                                tryAwaitRelease()
-                                itemBackgroundColor = backgroundColor
-                                item.onClick()
+                                if (item.enabled) {
+                                    itemBackgroundColor =
+                                        if (isDarkTheme) Color(0x40888888) else Color(0x40D9D9D9)
+                                    tryAwaitRelease()
+                                    itemBackgroundColor = backgroundColor
+                                }
+                            },
+                            onTap = {
+                                if (item.enabled) {
+                                    haptics.performHapticFeedback(HapticFeedbackType.ContextClick)
+                                    item.onClick()
+                                }
                             }
                         )
                     }
@@ -121,7 +125,7 @@ fun StyledSelectList(
             ) {
                 if (hasIcon) {
                     Icon(
-                        painter = painterResource(item.iconRes!!),
+                        painter = painterResource(item.iconRes),
                         contentDescription = "Icon",
                         tint = Color(0xFF007AFF),
                         modifier = Modifier
@@ -181,4 +185,4 @@ fun StyledSelectList(
             }
         }
     }
-}
+}

android/app/src/main/java/me/kavishdevar/librepods/presentation/components/StyledSlider.kt

@@ -16,8 +16,9 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-package me.kavishdevar.librepods.composables
+package me.kavishdevar.librepods.presentation.components
 
+import android.annotation.SuppressLint
 import android.content.res.Configuration
 import android.util.Log
 import androidx.compose.animation.core.Animatable
@@ -43,7 +44,6 @@ import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.MutableFloatState
 import androidx.compose.runtime.derivedStateOf
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableFloatStateOf
@@ -56,6 +56,7 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.graphicsLayer
+import androidx.compose.ui.hapticfeedback.HapticFeedbackType
 import androidx.compose.ui.input.pointer.pointerInput
 import androidx.compose.ui.input.pointer.util.VelocityTracker
 import androidx.compose.ui.input.pointer.util.addPointerInputChange
@@ -64,6 +65,7 @@ import androidx.compose.ui.layout.onGloballyPositioned
 import androidx.compose.ui.layout.onSizeChanged
 import androidx.compose.ui.layout.positionInParent
 import androidx.compose.ui.platform.LocalDensity
+import androidx.compose.ui.platform.LocalHapticFeedback
 import androidx.compose.ui.text.TextStyle
 import androidx.compose.ui.text.font.Font
 import androidx.compose.ui.text.font.FontFamily
@@ -81,7 +83,7 @@ import com.kyant.backdrop.backdrops.rememberCombinedBackdrop
 import com.kyant.backdrop.backdrops.rememberLayerBackdrop
 import com.kyant.backdrop.drawBackdrop
 import com.kyant.backdrop.effects.blur
-import com.kyant.backdrop.effects.refractionWithDispersion
+import com.kyant.backdrop.effects.lens
 import com.kyant.backdrop.highlight.Highlight
 import com.kyant.backdrop.shadow.InnerShadow
 import com.kyant.backdrop.shadow.Shadow
@@ -203,10 +205,11 @@ class MomentumAnimation(
     }
 }
 
+@SuppressLint("UnrememberedMutableState")
 @Composable
 fun StyledSlider(
     label: String? = null,
-    mutableFloatState: MutableFloatState,
+    value: Float,
     onValueChange: (Float) -> Unit,
     valueRange: ClosedFloatingPointRange<Float>,
     backdrop: Backdrop = rememberLayerBackdrop(),
@@ -217,23 +220,26 @@ fun StyledSlider(
     startLabel: String? = null,
     endLabel: String? = null,
     independent: Boolean = false,
-    description: String? = null
+    description: String? = null,
+    enabled: Boolean = true
 ) {
     val backgroundColor = if (isSystemInDarkTheme()) Color(0xFF1C1C1E) else Color(0xFFFFFFFF)
     val isLightTheme = !isSystemInDarkTheme()
-    val accentColor =
-        if (isLightTheme) Color(0xFF0088FF)
-        else Color(0xFF0091FF)
     val trackColor =
         if (isLightTheme) Color(0xFF787878).copy(0.2f)
         else Color(0xFF787880).copy(0.36f)
+    val accentColor =
+        if (enabled) {
+            if (isLightTheme) Color(0xFF0088FF)
+            else Color(0xFF0091FF)
+        } else {
+            trackColor
+        }
     val labelTextColor = if (isLightTheme) Color.Black else Color.White
 
-    val fraction by remember {
-        derivedStateOf {
-            ((mutableFloatState.floatValue - valueRange.start) / (valueRange.endInclusive - valueRange.start))
-                .fastCoerceIn(0f, 1f)
-        }
+    val fraction by derivedStateOf {
+        ((value - valueRange.start) / (valueRange.endInclusive - valueRange.start))
+            .fastCoerceIn(0f, 1f)
     }
 
     val sliderBackdrop = rememberLayerBackdrop()
@@ -242,6 +248,8 @@ fun StyledSlider(
     val startIconWidthState = remember { mutableFloatStateOf(0f) }
     val endIconWidthState = remember { mutableFloatStateOf(0f) }
     val density = LocalDensity.current
+    val haptics = LocalHapticFeedback.current
+    var lastDragValue by remember { mutableFloatStateOf(value) }
 
     val momentumAnimation = rememberMomentumAnimation(maxScale = 1.5f)
 
@@ -427,71 +435,93 @@ fun StyledSlider(
                                 )
                         translationY =  if (startLabel != null || endLabel != null) trackPositionState.floatValue + with(density) { 26.dp.toPx() } + size.height / 2f else trackPositionState.floatValue + with(density) { 8.dp.toPx() }
                     }
-                    .draggable(
-                        rememberDraggableState { delta ->
-                            val trackWidth = trackWidthState.floatValue
-                            if (trackWidth > 0f) {
-                                val targetFraction = fraction + delta / trackWidth
-                                val targetValue =
-                                    lerp(valueRange.start, valueRange.endInclusive, targetFraction)
-                                        .fastCoerceIn(valueRange.start, valueRange.endInclusive)
-                                val snappedValue = if (snapPoints.isNotEmpty()) snapIfClose(
-                                    targetValue,
-                                    snapPoints,
-                                    snapThreshold
-                                ) else targetValue
-                                onValueChange(snappedValue)
-                            }
-                        },
-                        Orientation.Horizontal,
-                        startDragImmediately = true,
-                        onDragStarted = {
-                            // Remove this block as momentumAnimation handles pressing
-                        },
-                        onDragStopped = {
-                            // Remove this block as momentumAnimation handles pressing
-                            onValueChange((mutableFloatState.floatValue * 100).roundToInt() / 100f)
-                        }
-                    )
-                    .then(momentumAnimation.modifier)
-                    .drawBackdrop(
-                        rememberCombinedBackdrop(backdrop, sliderBackdrop),
-                        { RoundedCornerShape(28.dp) },
-                        highlight = {
-                            val progress = momentumAnimation.progress
-                            Highlight.Ambient.copy(alpha = progress)
-                        },
-                        shadow = {
-                            Shadow(
-                                radius = 4f.dp,
-                                color = Color.Black.copy(0.05f)
-                            )
-                        },
-                        innerShadow = {
-                            val progress = momentumAnimation.progress
-                            InnerShadow(
-                                radius = 4f.dp * progress,
-                                alpha = progress
-                            )
-                        },
-                        layerBlock = {
-                            scaleX = momentumAnimation.scaleX
-                            scaleY = momentumAnimation.scaleY
-                            val velocity = momentumAnimation.velocity / 5000f
-                            scaleX /= 1f - (velocity * 0.75f).fastCoerceIn(-0.15f, 0.15f)
-                            scaleY *= 1f - (velocity * 0.25f).fastCoerceIn(-0.15f, 0.15f)
-                        },
-                        onDrawSurface = {
-                            val progress = momentumAnimation.progress
-                            drawRect(Color.White.copy(alpha = 1f - progress))
-                        },
-                        effects = {
-                            val progress = momentumAnimation.progress
-                            blur(8f.dp.toPx() * (1f - progress))
-                            refractionWithDispersion(
-                                height = 6f.dp.toPx() * progress,
-                                amount = size.height / 2f * progress
-                            )
+                    .then(
+                        if (enabled) {
+                            Modifier
+                                .draggable(
+                                    rememberDraggableState { delta ->
+                                        val trackWidth = trackWidthState.floatValue
+                                        if (trackWidth > 0f) {
+                                            val targetFraction = fraction + delta / trackWidth
+                                            val targetValue =
+                                                lerp(
+                                                    valueRange.start,
+                                                    valueRange.endInclusive,
+                                                    targetFraction
+                                                )
+                                                    .fastCoerceIn(
+                                                        valueRange.start,
+                                                        valueRange.endInclusive
+                                                    )
+                                            snapPoints.forEach { snap ->
+                                                if ((lastDragValue < snap && targetValue >= snap) ||
+                                                    (snap in targetValue..<lastDragValue)) {
+                                                    haptics.performHapticFeedback(HapticFeedbackType.SegmentTick)
+                                                }
+                                            }
+                                            lastDragValue = targetValue
+                                            val snappedValue = if (snapPoints.isNotEmpty()) snapIfClose(
+                                                targetValue,
+                                                snapPoints,
+                                                snapThreshold,
+                                            ) else targetValue
+                                            onValueChange(snappedValue)
+                                        }
+                                    },
+                                    Orientation.Horizontal,
+                                    startDragImmediately = true,
+                                    onDragStarted = {
+                                        lastDragValue = value
+                                    },
+                                    onDragStopped = {
+                                        onValueChange((value * 100).roundToInt() / 100f)
+                                    }
+                                )
+                                .then(momentumAnimation.modifier)
+                                .drawBackdrop(
+                                    rememberCombinedBackdrop(backdrop, sliderBackdrop),
+                                    { RoundedCornerShape(28.dp) },
+                                    highlight = {
+                                        val progress = momentumAnimation.progress
+                                        Highlight.Ambient.copy(alpha = progress)
+                                    },
+                                    shadow = {
+                                        Shadow(
+                                            radius = 4f.dp,
+                                            color = Color.Black.copy(0.05f)
+                                        )
+                                    },
+                                    innerShadow = {
+                                        val progress = momentumAnimation.progress
+                                        InnerShadow(
+                                            radius = 4f.dp * progress,
+                                            alpha = progress
+                                        )
+                                    },
+                                    layerBlock = {
+                                        scaleX = momentumAnimation.scaleX
+                                        scaleY = momentumAnimation.scaleY
+                                        val velocity = momentumAnimation.velocity / 5000f
+                                        scaleX /= 1f - (velocity * 0.75f).fastCoerceIn(-0.15f, 0.15f)
+                                        scaleY *= 1f - (velocity * 0.25f).fastCoerceIn(-0.15f, 0.15f)
+                                    },
+                                    onDrawSurface = {
+                                        val progress = momentumAnimation.progress
+                                        drawRect(Color.White.copy(alpha = 1f - progress))
+                                    },
+                                    effects = {
+                                        val progress = momentumAnimation.progress
+                                        blur(8f.dp.toPx() * (1f - progress))
+                                        lens(
+                                            refractionHeight = 6f.dp.toPx() * progress,
+                                            refractionAmount = size.height / 2f * progress,
+                                            depthEffect = true,
+                                            chromaticAberration = true
+                                        )
+                                    }
+                                )
+                        } else {
+                            Modifier.background(trackColor, RoundedCornerShape(28.dp))
                         }
                     )
                     .size(40f.dp, 24f.dp)
@@ -566,12 +596,13 @@ fun StyledSliderPreview() {
             .padding(16.dp)
             .fillMaxSize()
     ) {
-        Box (
-            Modifier.align(Alignment.Center)
+        Column (
+            Modifier.align(Alignment.Center),
+            verticalArrangement = Arrangement.spacedBy(16.dp)
         )
         {
             StyledSlider(
-                mutableFloatState = a,
+                value = a.floatValue,
                 onValueChange = {
                     a.floatValue = it
                 },
@@ -582,6 +613,19 @@ fun StyledSliderPreview() {
                 startIcon = "A",
                 endIcon = "B",
             )
+            StyledSlider(
+                value = a.floatValue,
+                onValueChange = {
+                    a.floatValue = it
+                },
+                valueRange = 0f..2f,
+                snapPoints = listOf(1f),
+                snapThreshold = 0.1f,
+                independent = true,
+                startIcon = "A",
+                endIcon = "B",
+                enabled = false
+            )
         }
     }
 }

android/app/src/main/java/me/kavishdevar/librepods/presentation/components/StyledSwitch.kt

@@ -16,10 +16,10 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-package me.kavishdevar.librepods.composables
+package me.kavishdevar.librepods.presentation.components
 
 import android.content.res.Configuration
-import androidx.compose.animation.Animatable
+import androidx.compose.animation.animateColorAsState
 import androidx.compose.animation.core.Animatable
 import androidx.compose.animation.core.FastOutSlowInEasing
 import androidx.compose.animation.core.spring
@@ -58,8 +58,10 @@ import androidx.compose.ui.graphics.graphicsLayer
 import androidx.compose.ui.graphics.layer.CompositingStrategy
 import androidx.compose.ui.graphics.layer.drawLayer
 import androidx.compose.ui.graphics.rememberGraphicsLayer
+import androidx.compose.ui.hapticfeedback.HapticFeedbackType
 import androidx.compose.ui.layout.onSizeChanged
 import androidx.compose.ui.platform.LocalDensity
+import androidx.compose.ui.platform.LocalHapticFeedback
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.util.fastCoerceIn
@@ -68,11 +70,12 @@ import com.kyant.backdrop.backdrops.layerBackdrop
 import com.kyant.backdrop.backdrops.rememberCombinedBackdrop
 import com.kyant.backdrop.backdrops.rememberLayerBackdrop
 import com.kyant.backdrop.drawBackdrop
-import com.kyant.backdrop.effects.refractionWithDispersion
+import com.kyant.backdrop.effects.lens
 import com.kyant.backdrop.highlight.Highlight
 import com.kyant.backdrop.shadow.Shadow
 import kotlinx.coroutines.coroutineScope
 import kotlinx.coroutines.launch
+import kotlin.math.abs
 
 @Composable
 fun StyledSwitch(
@@ -81,9 +84,12 @@ fun StyledSwitch(
     enabled: Boolean = true,
 ) {
     val isDarkTheme = isSystemInDarkTheme()
+    val haptics = LocalHapticFeedback.current
 
     val onColor = if (enabled) Color(0xFF34C759) else if (isDarkTheme) Color(0xFF5B5B5E) else Color(0xFFD1D1D6)
-    val offColor = if (enabled) if (isDarkTheme) Color(0xFF5B5B5E) else Color(0xFFD1D1D6) else if (isDarkTheme) Color(0xFF5B5B5E) else Color(0xFFD1D1D6)
+    val offColor = if (enabled) if (isDarkTheme) Color(0xFF5B5B5E) else Color(0xFFD1D1D6) else if (isDarkTheme) Color(
+        0x805B5B5E
+    ) else Color(0xFFD1D1D6)
 
     val trackWidth = 64.dp
     val trackHeight = 28.dp
@@ -98,24 +104,25 @@ fun StyledSwitch(
     val animatedFraction = remember { Animatable(fraction) }
     val trackWidthPx = remember { mutableFloatStateOf(0f) }
     val density = LocalDensity.current
-    val animationScope = rememberCoroutineScope()
+    val scope = rememberCoroutineScope()
     val progressAnimationSpec = spring(0.5f, 300f, 0.001f)
-    val colorAnimationSpec = tween<Color>(200, easing = FastOutSlowInEasing)
     val progressAnimation = remember { Animatable(0f) }
     val innerShadowLayer = rememberGraphicsLayer().apply {
         compositingStrategy = CompositingStrategy.Offscreen
     }
-    val animatedTrackColor = remember { Animatable(if (checked) onColor else offColor) }
+    val targetColor = if (checked) onColor else offColor
+    val animatedTrackColor by animateColorAsState(targetColor)
     val totalDrag = remember { mutableFloatStateOf(0f) }
     val tapThreshold = 10f
     val isFirstComposition = remember { mutableStateOf(true) }
     LaunchedEffect(checked) {
         if (!isFirstComposition.value) {
+            if (checked) {
+                haptics.performHapticFeedback(HapticFeedbackType.ToggleOn)
+            } else {
+                haptics.performHapticFeedback(HapticFeedbackType.ToggleOff)
+            }
             coroutineScope {
-                launch {
-                    val targetColor = if (checked) onColor else offColor
-                    animatedTrackColor.animateTo(targetColor, colorAnimationSpec)
-                }
                 launch {
                     val targetFrac = if (checked) 1f else 0f
                     animatedFraction.animateTo(targetFrac, progressAnimationSpec)
@@ -140,7 +147,7 @@ fun StyledSwitch(
             modifier = Modifier
                 .layerBackdrop(switchBackdrop)
                 .clip(RoundedCornerShape(trackHeight / 2))
-                .background(animatedTrackColor.value)
+                .background(animatedTrackColor)
                 .width(trackWidth)
                 .height(trackHeight)
                 .onSizeChanged { trackWidthPx.floatValue = it.width.toFloat() }
@@ -154,27 +161,31 @@ fun StyledSwitch(
                 .then(if (enabled) Modifier.draggable(
                     rememberDraggableState { delta ->
                         if (trackWidthPx.floatValue > 0f) {
+                            val oldFraction = animatedFraction.value
                             val newFraction = (animatedFraction.value + delta / trackWidthPx.floatValue).fastCoerceIn(-0.3f, 1.3f)
-                            animationScope.launch {
+                            scope.launch {
                                 animatedFraction.snapTo(newFraction)
                             }
-                            totalDrag.floatValue += kotlin.math.abs(delta)
+                            totalDrag.floatValue += abs(delta)
                             val newChecked = newFraction >= 0.5f
                             if (newChecked != checked) {
                                 onCheckedChange(newChecked)
                             }
+                            if ((oldFraction < 0.5f && newFraction >= 0.5f) || (oldFraction >= 0.5f && newFraction < 0.5f)) {
+                                haptics.performHapticFeedback(HapticFeedbackType.SegmentTick)
+                            }
                         }
                     },
                     Orientation.Horizontal,
                     startDragImmediately = true,
                     onDragStarted = {
                         totalDrag.floatValue = 0f
-                        animationScope.launch {
+                        scope.launch {
                             progressAnimation.animateTo(1f, progressAnimationSpec)
                         }
                     },
                     onDragStopped = {
-                        animationScope.launch {
+                        scope.launch {
                             if (totalDrag.floatValue < tapThreshold) {
                                 val newChecked = !checked
                                 onCheckedChange(newChecked)
@@ -262,7 +273,12 @@ fun StyledSwitch(
                         drawRect(Color.White.copy(1f - progress))
                     },
                     effects = {
-                        refractionWithDispersion(6f.dp.toPx(), size.height / 2f)
+                        lens(
+                            refractionHeight = 6f.dp.toPx(),
+                            refractionAmount = size.height / 2f,
+                            depthEffect = true,
+                            chromaticAberration = true
+                        )
                     }
                 )
                 .width(thumbWidth)

android/app/src/main/java/me/kavishdevar/librepods/presentation/components/StyledToggle.kt

@@ -0,0 +1,273 @@
+/*
+    LibrePods - AirPods liberated from Apple’s ecosystem
+    Copyright (C) 2025 LibrePods contributors
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+@file:OptIn(ExperimentalEncodingApi::class)
+
+package me.kavishdevar.librepods.presentation.components
+
+import androidx.compose.animation.animateColorAsState
+import androidx.compose.animation.core.tween
+import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.gestures.detectTapGestures
+import androidx.compose.foundation.interaction.MutableInteractionSource
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.runtime.rememberUpdatedState
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.hapticfeedback.HapticFeedbackType
+import androidx.compose.ui.input.pointer.pointerInput
+import androidx.compose.ui.platform.LocalHapticFeedback
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.Font
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import kotlinx.coroutines.launch
+import me.kavishdevar.librepods.R
+import kotlin.io.encoding.ExperimentalEncodingApi
+
+@Composable
+fun StyledToggle(
+    title: String? = null,
+    label: String,
+    description: String? = null,
+    checked: Boolean = false,
+    independent: Boolean = true,
+    enabled: Boolean = true,
+    onCheckedChange: (Boolean) -> Unit,
+) {
+    val currentChecked by rememberUpdatedState(checked)
+
+    val isDarkTheme = isSystemInDarkTheme()
+    val textColor = if (isDarkTheme) Color.White else Color.Black
+
+    val haptics = LocalHapticFeedback.current
+    val scope = rememberCoroutineScope()
+
+    var backgroundColor by remember {
+        mutableStateOf(
+            if (isDarkTheme) Color(0xFF1C1C1E) else Color(0xFFFFFFFF)
+        )
+    }
+
+    val animatedBackgroundColor by animateColorAsState(
+        targetValue = backgroundColor,
+        animationSpec = tween(durationMillis = 500)
+    )
+
+    if (independent) {
+        Column(modifier = Modifier.padding(vertical = 8.dp)) {
+            if (title != null) {
+                Text(
+                    text = title,
+                    style = TextStyle(
+                        fontSize = 14.sp,
+                        fontWeight = FontWeight.Bold,
+                        color = textColor.copy(alpha = 0.6f),
+                        fontFamily = FontFamily(Font(R.font.sf_pro))
+                    ),
+                    modifier = Modifier.padding(
+                        start = 16.dp,
+                        end = 16.dp,
+                        top = 8.dp,
+                        bottom = 4.dp
+                    )
+                )
+            }
+
+            Box(
+                modifier = Modifier
+                    .background(animatedBackgroundColor, RoundedCornerShape(28.dp))
+                    .padding(4.dp)
+                    .pointerInput(Unit) {
+                        detectTapGestures(
+                            onPress = {
+                                if (enabled) {
+                                    backgroundColor =
+                                        if (isDarkTheme) Color(0x40888888) else Color(0x40D9D9D9)
+                                    tryAwaitRelease()
+                                    backgroundColor =
+                                        if (isDarkTheme) Color(0xFF1C1C1E) else Color(0xFFFFFFFF)
+                                }
+                            },
+                            onTap = {
+                                if (enabled) {
+                                    scope.launch { haptics.performHapticFeedback(if (!currentChecked) HapticFeedbackType.ToggleOn else HapticFeedbackType.ToggleOff) }
+                                    onCheckedChange(!currentChecked)
+                                }
+                            }
+                        )
+                    }
+            ) {
+                Row(
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .height(55.dp)
+                        .padding(horizontal = 12.dp),
+                    verticalAlignment = Alignment.CenterVertically
+                ) {
+                    Text(
+                        text = label,
+                        modifier = Modifier.weight(1f),
+                        style = TextStyle(
+                            fontSize = 16.sp,
+                            fontFamily = FontFamily(Font(R.font.sf_pro)),
+                            fontWeight = FontWeight.Normal,
+                            color = textColor
+                        )
+                    )
+
+                    StyledSwitch(
+                        checked = checked,
+                        enabled = enabled,
+                        onCheckedChange = {
+                            if (enabled) {
+                                scope.launch { haptics.performHapticFeedback(if (it) HapticFeedbackType.ToggleOn else HapticFeedbackType.ToggleOff) }
+                                onCheckedChange(it)
+                            }
+                        }
+                    )
+                }
+            }
+
+            if (description != null) {
+                Spacer(modifier = Modifier.height(8.dp))
+
+                Box(
+                    modifier = Modifier
+                        .padding(horizontal = 16.dp)
+                        .background(
+                            if (isDarkTheme) Color(0xFF000000)
+                            else Color(0xFFF2F2F7)
+                        )
+                ) {
+                    Text(
+                        text = description,
+                        style = TextStyle(
+                            fontSize = 12.sp,
+                            fontWeight = FontWeight.Light,
+                            color = textColor.copy(alpha = 0.6f),
+                            fontFamily = FontFamily(Font(R.font.sf_pro))
+                        )
+                    )
+                }
+            }
+        }
+    } else {
+        val isPressed = remember { mutableStateOf(false) }
+
+        Row(
+            modifier = Modifier
+                .fillMaxWidth()
+                .background(
+                    shape = RoundedCornerShape(28.dp),
+                    color = if (isPressed.value) Color(0xFFE0E0E0) else Color.Transparent
+                )
+                .padding(16.dp)
+                .pointerInput(Unit) {
+                    detectTapGestures(
+                        onPress = {
+                            isPressed.value = true
+                            tryAwaitRelease()
+                            isPressed.value = false
+                        }
+                    )
+                }
+                .clickable(
+                    indication = null,
+                    interactionSource = remember { MutableInteractionSource() }
+                ) {
+                    if (enabled) {
+                        scope.launch { haptics.performHapticFeedback(if (!currentChecked) HapticFeedbackType.ToggleOn else HapticFeedbackType.ToggleOff) }
+                        onCheckedChange(!currentChecked)
+                    }
+                },
+            verticalAlignment = Alignment.CenterVertically
+        ) {
+            Column(
+                modifier = Modifier
+                    .weight(1f)
+                    .padding(end = 4.dp)
+            ) {
+                Text(
+                    text = label,
+                    style = TextStyle(
+                        fontSize = 16.sp,
+                        fontFamily = FontFamily(Font(R.font.sf_pro)),
+                        fontWeight = FontWeight.Normal,
+                        color = textColor
+                    )
+                )
+
+                Spacer(modifier = Modifier.height(4.dp))
+
+                if (description != null) {
+                    Text(
+                        text = description,
+                        style = TextStyle(
+                            fontSize = 12.sp,
+                            color = textColor.copy(0.6f),
+                            fontFamily = FontFamily(Font(R.font.sf_pro)),
+                        )
+                    )
+                }
+            }
+
+            StyledSwitch(
+                checked = checked,
+                enabled = enabled,
+                onCheckedChange = {
+                    if (enabled) {
+                        onCheckedChange(it)
+                    }
+                }
+            )
+        }
+    }
+}
+
+@Preview
+@Composable
+fun StyledTogglePreview() {
+    val checked = remember { mutableStateOf(false) }
+    StyledToggle(
+        label = "Example Toggle",
+        description = "This is an example description for the styled toggle.",
+        checked = checked.value,
+        onCheckedChange = { checked.value = !checked.value }
+    )
+}

android/app/src/main/java/me/kavishdevar/librepods/presentation/components/VerticalVolumeSlider.kt

@@ -16,7 +16,7 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-package me.kavishdevar.librepods.composables
+package me.kavishdevar.librepods.presentation.components
 
 import androidx.compose.animation.core.Spring
 import androidx.compose.animation.core.animateFloatAsState

android/app/src/main/java/me/kavishdevar/librepods/presentation/overlays/IslandWindow.kt

@@ -18,7 +18,7 @@
 
 @file:OptIn(ExperimentalEncodingApi::class)
 
-package me.kavishdevar.librepods.utils
+package me.kavishdevar.librepods.presentation.overlays
 
 import android.animation.Animator
 import android.animation.AnimatorListenerAdapter
@@ -58,10 +58,10 @@ import androidx.dynamicanimation.animation.DynamicAnimation
 import androidx.dynamicanimation.animation.SpringAnimation
 import androidx.dynamicanimation.animation.SpringForce
 import me.kavishdevar.librepods.R
-import me.kavishdevar.librepods.constants.AirPodsNotifications
-import me.kavishdevar.librepods.constants.Battery
-import me.kavishdevar.librepods.constants.BatteryComponent
-import me.kavishdevar.librepods.constants.BatteryStatus
+import me.kavishdevar.librepods.data.AirPodsNotifications
+import me.kavishdevar.librepods.data.Battery
+import me.kavishdevar.librepods.data.BatteryComponent
+import me.kavishdevar.librepods.data.BatteryStatus
 import me.kavishdevar.librepods.services.ServiceManager
 import kotlin.io.encoding.ExperimentalEncodingApi
 import kotlin.math.abs
@@ -240,6 +240,7 @@ class IslandWindow(private val context: Context) {
             FrameLayout.LayoutParams.MATCH_PARENT,
             FrameLayout.LayoutParams.WRAP_CONTENT
         )
+
         containerView.addView(islandView, containerParams)
 
         params = WindowManager.LayoutParams(
@@ -379,7 +380,11 @@ class IslandWindow(private val context: Context) {
             videoView.start()
         }
 
-        windowManager.addView(containerView, params)
+        try {
+            windowManager.addView(containerView, params)
+        } catch (e: Exception) {
+            e.printStackTrace()
+        }
 
         islandView.post {
             initialHeight = islandView.height
@@ -707,8 +712,16 @@ class IslandWindow(private val context: Context) {
         }
         isClosing = false
         // Make sure all animations are canceled
-        springAnimation.cancel()
-        flingAnimator.cancel()
+        try {
+            springAnimation.cancel()
+        } catch (e: Exception) {
+            e("IslandWindow", "Error cancelling spring animation $e")
+        }
+        try {
+            flingAnimator.cancel()
+        } catch (e: Exception) {
+            e("IslandWindow", "Error cancelling fling animation $e")
+        }
     }
 
     fun forceClose() {

android/app/src/main/java/me/kavishdevar/librepods/presentation/overlays/PopupWindow.kt

@@ -17,7 +17,7 @@
 */
 
 
-package me.kavishdevar.librepods.utils
+package me.kavishdevar.librepods.presentation.overlays
 
 import android.animation.Animator
 import android.animation.AnimatorListenerAdapter
@@ -45,10 +45,10 @@ import android.widget.LinearLayout
 import android.widget.TextView
 import android.widget.VideoView
 import me.kavishdevar.librepods.R
-import me.kavishdevar.librepods.constants.AirPodsNotifications
-import me.kavishdevar.librepods.constants.Battery
-import me.kavishdevar.librepods.constants.BatteryComponent
-import me.kavishdevar.librepods.constants.BatteryStatus
+import me.kavishdevar.librepods.data.AirPodsNotifications
+import me.kavishdevar.librepods.data.Battery
+import me.kavishdevar.librepods.data.BatteryComponent
+import me.kavishdevar.librepods.data.BatteryStatus
 
 @SuppressLint("InflateParams", "ClickableViewAccessibility")
 class PopupWindow(
@@ -64,10 +64,16 @@ class PopupWindow(
     @Suppress("DEPRECATION")
     private val mParams: WindowManager.LayoutParams = WindowManager.LayoutParams().apply {
         height = WindowManager.LayoutParams.WRAP_CONTENT
-        width = WindowManager.LayoutParams.MATCH_PARENT
+        val displayMetrics = context.resources.displayMetrics
+        val screenWidthDp = displayMetrics.widthPixels / displayMetrics.density
+        width = if (screenWidthDp >= 600) {
+            (400 * displayMetrics.density).toInt()
+        } else {
+            WindowManager.LayoutParams.MATCH_PARENT
+        }
         type = WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY
         format = PixelFormat.TRANSLUCENT
-        gravity = Gravity.BOTTOM
+        gravity = Gravity.BOTTOM or Gravity.CENTER_HORIZONTAL
         dimAmount = 0.3f
         flags = WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS or
             WindowManager.LayoutParams.FLAG_FULLSCREEN or
@@ -84,7 +90,6 @@ class PopupWindow(
         mParams.x = 0
         mParams.y = 0
 
-        mParams.gravity = Gravity.BOTTOM
         mView.setOnClickListener {
             close()
         }
@@ -139,7 +144,11 @@ class PopupWindow(
                     vid.start()
                 }
 
-                mWindowManager.addView(mView, mParams)
+                try {
+                    mWindowManager.addView(mView, mParams)
+                } catch (e: Exception) {
+                    e.printStackTrace()
+                }
 
                 val displayMetrics = mView.context.resources.displayMetrics
                 val screenHeight = displayMetrics.heightPixels

android/app/src/main/java/me/kavishdevar/librepods/presentation/screens/AdaptiveStrengthScreen.kt

@@ -16,86 +16,50 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-package me.kavishdevar.librepods.screens
+package me.kavishdevar.librepods.presentation.screens
 
-import android.annotation.SuppressLint
 import androidx.compose.foundation.isSystemInDarkTheme
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
-import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.DisposableEffect
-import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableFloatStateOf
+import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.Font
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
 import androidx.navigation.NavController
 import com.kyant.backdrop.backdrops.layerBackdrop
 import com.kyant.backdrop.backdrops.rememberLayerBackdrop
-import dev.chrisbanes.haze.materials.ExperimentalHazeMaterialsApi
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
 import me.kavishdevar.librepods.R
-import me.kavishdevar.librepods.composables.StyledIconButton
-import me.kavishdevar.librepods.composables.StyledScaffold
-import me.kavishdevar.librepods.composables.StyledSlider
-import me.kavishdevar.librepods.services.ServiceManager
-import me.kavishdevar.librepods.utils.AACPManager
-import kotlin.io.encoding.ExperimentalEncodingApi
+import me.kavishdevar.librepods.bluetooth.AACPManager
+import me.kavishdevar.librepods.presentation.components.StyledButton
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
+import me.kavishdevar.librepods.presentation.components.StyledSlider
+import me.kavishdevar.librepods.presentation.viewmodel.AirPodsViewModel
 
-private var debounceJob: Job? = null
-
-@SuppressLint("DefaultLocale")
-@ExperimentalHazeMaterialsApi
-@OptIn(ExperimentalMaterial3Api::class, ExperimentalEncodingApi::class)
 @Composable
-fun AdaptiveStrengthScreen(navController: NavController) {
-    val isDarkTheme = isSystemInDarkTheme()
-
-    val sliderValue = remember { mutableFloatStateOf(0f) }
-    val service = ServiceManager.getService()!!
-
-    LaunchedEffect(sliderValue) {
-        val sliderValueFromAACP = service.aacpManager.controlCommandStatusList.find {
-            it.identifier == AACPManager.Companion.ControlCommandIdentifiers.AUTO_ANC_STRENGTH
-        }?.value?.takeIf { it.isNotEmpty() }?.get(0)
-        sliderValueFromAACP?.toFloat()?.let { sliderValue.floatValue = (100 - it) }
-    }
-
-    val listener = remember {
-        object : AACPManager.ControlCommandListener {
-            override fun onControlCommandReceived(controlCommand: AACPManager.ControlCommand) {
-                if (controlCommand.identifier == AACPManager.Companion.ControlCommandIdentifiers.AUTO_ANC_STRENGTH.value) {
-                    controlCommand.value.takeIf { it.isNotEmpty() }?.get(0)?.toFloat()?.let {
-                        sliderValue.floatValue = (100 - it)
-                    }
-                }
-            }
-        }
-    }
-
-    DisposableEffect(Unit) {
-        service.aacpManager.registerControlCommandListener(
-            AACPManager.Companion.ControlCommandIdentifiers.AUTO_ANC_STRENGTH,
-            listener
-        )
-        onDispose {
-            service.aacpManager.unregisterControlCommandListener(
-                AACPManager.Companion.ControlCommandIdentifiers.AUTO_ANC_STRENGTH,
-                listener
-            )
-        }
-    }
-
+fun AdaptiveStrengthScreen(viewModel: AirPodsViewModel, navController: NavController) {
+    val state by viewModel.uiState.collectAsState()
     val backdrop = rememberLayerBackdrop()
 
     StyledScaffold(
@@ -109,17 +73,43 @@ fun AdaptiveStrengthScreen(navController: NavController) {
             verticalArrangement = Arrangement.spacedBy(16.dp)
         ) {
             Spacer(modifier = Modifier.height(spacerHeight))
+            if (!state.isPremium) {
+                StyledButton(
+                    onClick = {
+                        navController.navigate("purchase_screen")
+                    },
+                    backdrop = rememberLayerBackdrop(),
+                    modifier = Modifier.fillMaxWidth(),
+                    maxScale = 0.05f,
+                    surfaceColor = if (isSystemInDarkTheme()) Color(0xFF916100) else Color(0xFFE59900)
+                ) {
+                    Text(
+                        stringResource(R.string.unlock_advanced_features),
+                        style = TextStyle(
+                            fontSize = 16.sp,
+                            fontWeight = FontWeight.Medium,
+                            fontFamily = FontFamily(Font(R.font.sf_pro)),
+                            color = Color.White
+                        ),
+                    )
+                }
+            }
+            val sliderValue = remember {
+                mutableFloatStateOf(100f - (state.controlStates[AACPManager.Companion.ControlCommandIdentifiers.AUTO_ANC_STRENGTH]?.getOrNull(0)?.toFloat() ?: 50f))
+            }
+            var job by remember { mutableStateOf<Job?>(null) }
+            val scope = rememberCoroutineScope()
             StyledSlider(
                 label = stringResource(R.string.customize_adaptive_audio),
-                mutableFloatState = sliderValue,
+                value = sliderValue.floatValue,
                 onValueChange = {
                     sliderValue.floatValue = it
-                    debounceJob?.cancel()
-                    debounceJob = CoroutineScope(Dispatchers.Default).launch {
-                        delay(300)
-                        service.aacpManager.sendControlCommand(
-                            AACPManager.Companion.ControlCommandIdentifiers.AUTO_ANC_STRENGTH.value,
-                            (100 - it).toInt()
+                    job?.cancel()
+                    job = scope.launch {
+                        delay(150)
+                        viewModel.setControlCommandValue(
+                            AACPManager.Companion.ControlCommandIdentifiers.AUTO_ANC_STRENGTH,
+                            byteArrayOf((100 - it).toInt().toByte())
                         )
                     }
                 },
@@ -128,7 +118,8 @@ fun AdaptiveStrengthScreen(navController: NavController) {
                 startIcon = "􀊥",
                 endIcon = "􀊩",
                 independent = true,
-                description = stringResource(R.string.adaptive_audio_description)
+                description = stringResource(R.string.adaptive_audio_description),
+                enabled = state.isPremium
             )
         }
     }

android/app/src/main/java/me/kavishdevar/librepods/presentation/screens/AirPodsSettingsScreen.kt

@@ -0,0 +1,574 @@
+/*
+    LibrePods - AirPods liberated from Apple’s ecosystem
+    Copyright (C) 2025 LibrePods contributors
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+@file:OptIn(ExperimentalEncodingApi::class)
+
+package me.kavishdevar.librepods.presentation.screens
+
+// import me.kavishdevar.librepods.utils.RadareOffsetFinder
+import android.annotation.SuppressLint
+import android.content.Context.MODE_PRIVATE
+import android.content.SharedPreferences
+import androidx.compose.foundation.gestures.detectTapGestures
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.heightIn
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.SnackbarHostState
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.DisposableEffect
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableIntStateOf
+import androidx.compose.runtime.mutableLongStateOf
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.input.pointer.PointerEventPass
+import androidx.compose.ui.input.pointer.pointerInput
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.Font
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.input.TextFieldValue
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import androidx.navigation.NavController
+import com.kyant.backdrop.backdrops.rememberLayerBackdrop
+import com.kyant.backdrop.drawBackdrop
+import com.kyant.backdrop.highlight.Highlight
+import dev.chrisbanes.haze.HazeState
+import dev.chrisbanes.haze.hazeSource
+import dev.chrisbanes.haze.materials.ExperimentalHazeMaterialsApi
+import kotlinx.coroutines.delay
+import me.kavishdevar.librepods.BuildConfig
+import me.kavishdevar.librepods.R
+import me.kavishdevar.librepods.bluetooth.AACPManager
+import me.kavishdevar.librepods.bluetooth.ATTHandles
+import me.kavishdevar.librepods.data.AirPodsPro3
+import me.kavishdevar.librepods.data.Capability
+import me.kavishdevar.librepods.presentation.components.AboutCard
+import me.kavishdevar.librepods.presentation.components.AudioSettings
+import me.kavishdevar.librepods.presentation.components.BatteryView
+import me.kavishdevar.librepods.presentation.components.CallControlSettings
+import me.kavishdevar.librepods.presentation.components.ConnectionSettings
+import me.kavishdevar.librepods.presentation.components.HearingHealthSettings
+import me.kavishdevar.librepods.presentation.components.MicrophoneSettings
+import me.kavishdevar.librepods.presentation.components.NavigationButton
+import me.kavishdevar.librepods.presentation.components.NoiseControlSettings
+import me.kavishdevar.librepods.presentation.components.PressAndHoldSettings
+import me.kavishdevar.librepods.presentation.components.StyledButton
+import me.kavishdevar.librepods.presentation.components.StyledIconButton
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
+import me.kavishdevar.librepods.presentation.components.StyledToggle
+import me.kavishdevar.librepods.presentation.viewmodel.AirPodsViewModel
+import kotlin.io.encoding.ExperimentalEncodingApi
+
+@OptIn(ExperimentalMaterial3Api::class, ExperimentalHazeMaterialsApi::class)
+@SuppressLint("MissingPermission", "UnspecifiedRegisterReceiverFlag")
+@Composable
+fun AirPodsSettingsScreen(viewModel: AirPodsViewModel, navController: NavController) {
+    val state by viewModel.uiState.collectAsState()
+    val sharedPreferences = LocalContext.current.getSharedPreferences("settings", MODE_PRIVATE)
+    var deviceName by remember {
+        mutableStateOf(
+            TextFieldValue(
+                sharedPreferences.getString("name", state.deviceName).toString()
+            )
+        )
+    }
+
+    val nameChangeListener = remember {
+        SharedPreferences.OnSharedPreferenceChangeListener { _, key ->
+            if (key == "name") {
+                deviceName =
+                    TextFieldValue(sharedPreferences.getString("name", "AirPods Pro").toString())
+            }
+        }
+    }
+
+    DisposableEffect(Unit) {
+        sharedPreferences.registerOnSharedPreferenceChangeListener(nameChangeListener)
+        onDispose {
+            sharedPreferences.unregisterOnSharedPreferenceChangeListener(nameChangeListener)
+        }
+    }
+
+    val snackbarHostState = remember { SnackbarHostState() }
+
+    LaunchedEffect(Unit) {
+        viewModel.refreshInitialData()
+    }
+
+    val hazeStateS = remember { mutableStateOf(HazeState()) }
+
+    StyledScaffold(
+        title = deviceName.text, actionButtons = listOf(
+            { scaffoldBackdrop ->
+                StyledIconButton(
+                    onClick = { navController.navigate("app_settings") },
+                    icon = "􀍟",
+                    backdrop = scaffoldBackdrop
+                )
+            }), snackbarHostState = snackbarHostState
+    ) { topPadding, hazeState, bottomPadding ->
+        hazeStateS.value = hazeState
+        var blockTouches by remember { mutableStateOf(false) }
+
+        LaunchedEffect(Unit) {
+            viewModel.demoActivated.collect {
+                blockTouches = true
+                delay(1000)
+                blockTouches = false
+            }
+        }
+
+        if (state.isLocallyConnected) {
+            val capabilities = state.capabilities
+            LazyColumn(
+                modifier = Modifier
+                    .fillMaxSize()
+                    .hazeSource(hazeState)
+                    .padding(horizontal = 16.dp)
+                    .then(if (blockTouches) Modifier.pointerInput(Unit) {
+                        awaitPointerEventScope {
+                            while (true) {
+                                val event = awaitPointerEvent(PointerEventPass.Initial)
+                                event.changes.forEach { it.consume() }
+                            }
+                        }
+                    } else Modifier)) {
+                item(key = "spacer_top") { Spacer(modifier = Modifier.height(topPadding)) }
+                item(key = "battery") {
+                    BatteryView(
+                        batteryList = state.battery,
+                        budsRes = state.instance?.model?.budsRes ?: R.drawable.airpods_pro_2_case,
+                        caseRes = state.instance?.model?.caseRes ?: R.drawable.airpods_pro_2_case
+                    )
+                }
+                item(key = "spacer_battery") { Spacer(modifier = Modifier.height(32.dp)) }
+
+                item(key = "name") {
+                    NavigationButton(
+                        to = "rename",
+                        name = stringResource(R.string.name),
+                        currentState = deviceName.text,
+                        navController = navController,
+                        independent = true
+                    )
+                }
+
+                val hasHearingAidCapability =
+                    state.instance?.model?.capabilities?.contains(Capability.HEARING_AID) == true
+                val hasPPECapability =
+                    state.instance?.model?.capabilities?.contains(Capability.PPE) == true
+
+                if (hasHearingAidCapability || hasPPECapability) {
+                    if (hasPPECapability || (state.vendorIdHook && hasHearingAidCapability)) item(
+                        key = "spacer_hearing_health"
+                    ) { Spacer(modifier = Modifier.height(24.dp)) }
+                    item(key = "hearing_health") {
+                        HearingHealthSettings(
+                            navController = navController,
+                            hasPPECapability = hasPPECapability,
+                            hasHearingAidCapability = hasHearingAidCapability,
+                            vendorIdHook = state.vendorIdHook
+                        )
+                    }
+                }
+
+                if (capabilities.contains(Capability.LISTENING_MODE)) {
+                    item(key = "spacer_noise") { Spacer(modifier = Modifier.height(16.dp)) }
+                    item(key = "noise_control") {
+                        NoiseControlSettings(
+                            showOffListeningMode = state.offListeningMode,
+                            noiseControlModeValue = state.controlStates[AACPManager.Companion.ControlCommandIdentifiers.LISTENING_MODE]?.getOrNull(
+                                0
+                            )?.toInt() ?: 3,
+                            onNoiseControlModeChanged = {
+                                viewModel.setControlCommandInt(
+                                    AACPManager.Companion.ControlCommandIdentifiers.LISTENING_MODE,
+                                    it
+                                )
+                            },
+                        )
+                    }
+                }
+
+                if (capabilities.contains(Capability.STEM_CONFIG)) {
+                    item(key = "spacer_press_hold") { Spacer(modifier = Modifier.height(16.dp)) }
+                    item(key = "press_hold") {
+                        PressAndHoldSettings(
+                            navController = navController,
+                            leftAction = state.leftAction,
+                            rightAction = state.rightAction
+                        )
+                    }
+                }
+
+                item(key = "spacer_call") { Spacer(modifier = Modifier.height(16.dp)) }
+                item(key = "call_control") {
+                    val bytes = state.controlStates[AACPManager.Companion.ControlCommandIdentifiers.CALL_MANAGEMENT_CONFIG]?.take(2)?.toByteArray() ?: byteArrayOf(0x00, 0x00)
+                    val flipped = try { bytes[1] == 0x02.toByte() } catch (e: Exception) { false }
+                    CallControlSettings(
+                        hazeState = hazeState,
+                        flipped = flipped,
+                        onCallControlValueChanged = {
+                            viewModel.setControlCommandValue(
+                                AACPManager.Companion.ControlCommandIdentifiers.CALL_MANAGEMENT_CONFIG,
+                                if (it) byteArrayOf(0x00, 0x02) else byteArrayOf(0x00, 0x03)
+                            )
+                        })
+                }
+
+//                if (capabilities.contains(Capability.STEM_CONFIG) && !BuildConfig.PLAY_BUILD) {
+//                    item(key = "spacer_camera") { Spacer(modifier = Modifier.height(16.dp)) }
+//                    item(key = "camera_control") {
+//                        NavigationButton(
+//                            to = "camera_control",
+//                            name = stringResource(R.string.camera_remote),
+//                            description = stringResource(R.string.camera_control_description),
+//                            title = stringResource(R.string.camera_control),
+//                            navController = navController
+//                        )
+//                    }
+//                }
+
+                item(key = "upgrade_button") {
+                    if (!state.isPremium) {
+                        Spacer(modifier = Modifier.height(28.dp))
+                        StyledButton(
+                            onClick = {
+                                navController.navigate("purchase_screen")
+                            },
+                            backdrop = rememberLayerBackdrop(),
+                            modifier = Modifier.fillMaxWidth(),
+                            maxScale = 0.05f,
+                            surfaceColor = if (isSystemInDarkTheme()) Color(0xFF916100) else Color(
+                                0xFFE59900
+                            )
+                        ) {
+                            Text(
+                                stringResource(R.string.unlock_advanced_features),
+                                style = TextStyle(
+                                    fontSize = 16.sp,
+                                    fontWeight = FontWeight.Medium,
+                                    fontFamily = FontFamily(Font(R.font.sf_pro)),
+                                    color = Color.White
+                                ),
+                            )
+                        }
+                        Spacer(modifier = Modifier.height(16.dp))
+                    }
+                }
+
+                item(key = "spacer_audio") { Spacer(modifier = Modifier.height(16.dp)) }
+                item(key = "audio") {
+                    val model = state.instance?.model ?: AirPodsPro3()
+                    val adaptiveVolumeCapability =
+                        model.capabilities.contains(Capability.ADAPTIVE_VOLUME)
+                    val conversationalAwarenessCapability =
+                        model.capabilities.contains(Capability.CONVERSATION_AWARENESS)
+                    val loudSoundReductionCapability =
+                        model.capabilities.contains(Capability.LOUD_SOUND_REDUCTION)
+                    val adaptiveAudioCapability =
+                        model.capabilities.contains(Capability.ADAPTIVE_VOLUME)
+
+                    val adaptiveVolumeChecked =
+                        state.controlStates[AACPManager.Companion.ControlCommandIdentifiers.ADAPTIVE_VOLUME_CONFIG]?.getOrNull(
+                            0
+                        ) == 0x01.toByte()
+                    val conversationalAwarenessChecked =
+                        state.controlStates[AACPManager.Companion.ControlCommandIdentifiers.CONVERSATION_DETECT_CONFIG]?.getOrNull(
+                            0
+                        ) == 0x01.toByte()
+
+                    AudioSettings(
+                        navController = navController,
+                        adaptiveVolumeCapability = adaptiveVolumeCapability,
+                        conversationalAwarenessCapability = conversationalAwarenessCapability,
+                        loudSoundReductionCapability = loudSoundReductionCapability,
+                        adaptiveAudioCapability = adaptiveAudioCapability,
+                        adaptiveVolumeChecked = adaptiveVolumeChecked,
+                        onAdaptiveVolumeCheckedChange = { checked ->
+                            viewModel.setControlCommandBoolean(
+                                AACPManager.Companion.ControlCommandIdentifiers.ADAPTIVE_VOLUME_CONFIG,
+                                checked
+                            )
+                        },
+                        conversationalAwarenessChecked = conversationalAwarenessChecked && state.isPremium,
+                        onConversationalAwarenessCheckedChange = { checked ->
+                            viewModel.setControlCommandBoolean(
+                                AACPManager.Companion.ControlCommandIdentifiers.CONVERSATION_DETECT_CONFIG,
+                                checked
+                            )
+                        },
+                        loudSoundReductionChecked = state.loudSoundReductionEnabled,
+                        onLoudSoundReductionCheckedChange = {
+                            viewModel.setATTCharacteristicValue(
+                                ATTHandles.LOUD_SOUND_REDUCTION,
+                                byteArrayOf(if (it) 0x01.toByte() else 0x00.toByte())
+                            )
+                        },
+                        vendorIdHook = state.vendorIdHook,
+                        isPremium = state.isPremium
+                    )
+                }
+
+                item(key = "spacer_connection") { Spacer(modifier = Modifier.height(16.dp)) }
+                item(key = "connection") {
+                    ConnectionSettings(
+                        automaticEarDetectionEnabled = state.automaticEarDetectionEnabled,
+                        onAutomaticEarDetectionChanged = {
+                            viewModel.setAutomaticEarDetectionEnabled(it)
+                        },
+                        automaticConnectionEnabled = state.automaticConnectionEnabled,
+                        onAutomaticConnectionChanged = { viewModel.setAutomaticConnectionEnabled(it) })
+                }
+
+                item(key = "spacer_microphone") { Spacer(modifier = Modifier.height(16.dp)) }
+                item(key = "microphone") {
+                    val id = AACPManager.Companion.ControlCommandIdentifiers.MIC_MODE
+                    MicrophoneSettings(
+                        hazeState = hazeState,
+                        micModeValue = state.controlStates[id]?.getOrNull(0) ?: 0x00.toByte(),
+                        onMicModeValueChanged = { viewModel.setControlCommandByte(id, it) })
+                }
+
+                if (capabilities.contains(Capability.SLEEP_DETECTION)) {
+                    item(key = "spacer_sleep") { Spacer(modifier = Modifier.height(16.dp)) }
+                    item(key = "sleep_detection") {
+                        val id =
+                            AACPManager.Companion.ControlCommandIdentifiers.SLEEP_DETECTION_CONFIG
+                        StyledToggle(
+                            label = stringResource(R.string.sleep_detection),
+                            checked = state.controlStates[id]?.getOrNull(0) == 0x01.toByte(),
+                            onCheckedChange = {
+                                viewModel.setControlCommandBoolean(id, it)
+                            },
+                            enabled = state.isPremium
+                        )
+                    }
+                }
+
+                if (capabilities.contains(Capability.HEAD_GESTURES)) {
+                    item(key = "spacer_head_tracking") { Spacer(modifier = Modifier.height(16.dp)) }
+                    item(key = "head_tracking") {
+                        NavigationButton(
+                            to = "head_tracking",
+                            name = stringResource(R.string.head_gestures),
+                            navController = navController,
+                            currentState = if (sharedPreferences.getBoolean(
+                                    "head_gestures", false
+                                )
+                            ) stringResource(R.string.on) else stringResource(R.string.off)
+                        )
+                    }
+                }
+
+                item(key = "spacer_dynamic_end_of_charge") { Spacer(modifier = Modifier.height(16.dp)) }
+                item(key = "dynamic_end_of_charge") {
+                    StyledToggle(
+                        label = stringResource(R.string.optimized_charging),
+                        description = stringResource(R.string.optimized_charging_description),
+                        checked = state.dynamicEndOfCharge,
+                        onCheckedChange = viewModel::setDynamicEndOfCharge
+                    )
+                }
+
+                item(key = "spacer_accessibility") { Spacer(modifier = Modifier.height(16.dp)) }
+                item(key = "accessibility") {
+                    NavigationButton(
+                        to = "accessibility",
+                        name = stringResource(R.string.accessibility),
+                        navController = navController
+                    )
+                }
+
+                if (capabilities.contains(Capability.LOUD_SOUND_REDUCTION)) {
+                    item(key = "spacer_off_listening") { Spacer(modifier = Modifier.height(16.dp)) }
+                    item(key = "off_listening") {
+                        val id = AACPManager.Companion.ControlCommandIdentifiers.ALLOW_OFF_OPTION
+                        StyledToggle(
+                            label = stringResource(R.string.off_listening_mode),
+                            description = stringResource(R.string.off_listening_mode_description),
+                            checked = state.controlStates[id]?.getOrNull(0) == 0x01.toByte(),
+                            onCheckedChange = viewModel::setOffListeningMode
+                        )
+                    }
+                }
+
+                item(key = "spacer_about") { Spacer(modifier = Modifier.height(32.dp)) }
+                item(key = "about") {
+                    AboutCard(
+                        navController = navController,
+                        modelName = state.modelName,
+                        actualModel = state.actualModel,
+                        serialNumbers = state.serialNumbers,
+                        version = state.version3,
+                    )
+                }
+
+                item(key = "spacer_disconnect") { Spacer(modifier = Modifier.height(28.dp)) }
+                item(key = "disconnect_button") {
+                    StyledButton(
+                        onClick = viewModel::disconnect,
+                        backdrop = rememberLayerBackdrop(),
+                        isInteractive = false,
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .heightIn(min = 56.dp)
+                    ) {
+                        Text(
+                            text = stringResource(R.string.disconnect),
+                            style = TextStyle(
+                                fontSize = 16.sp,
+                                fontWeight = FontWeight.Normal,
+                                color = if (isSystemInDarkTheme()) Color(0xFF0091FF) else Color(0xFF0088FF),
+                                fontFamily = FontFamily(Font(R.font.sf_pro))
+                            ),
+                            textAlign = TextAlign.Start,
+                            modifier = Modifier.fillMaxWidth()
+                        )
+                    }
+                }
+
+//                item(key = "spacer_debug") { Spacer(modifier = Modifier.height(16.dp)) }
+//                item(key = "debug") { NavigationButton("debug", "Debug", navController) }
+                item(key = "spacer_bottom") { Spacer(Modifier.height(bottomPadding)) }
+            }
+        } else {
+            val backdrop = rememberLayerBackdrop()
+            Column(
+                modifier = Modifier
+                    .fillMaxSize()
+                    .drawBackdrop(
+                        backdrop = rememberLayerBackdrop(),
+                        exportedBackdrop = backdrop,
+                        shape = { RoundedCornerShape(0.dp) },
+                        highlight = {
+                            Highlight.Ambient.copy(alpha = 0f)
+                        },
+                        effects = {})
+                    .hazeSource(hazeState)
+                    .padding(horizontal = 8.dp),
+                horizontalAlignment = Alignment.CenterHorizontally,
+                verticalArrangement = Arrangement.Center
+            ) {
+                val tapCount = remember { mutableIntStateOf(0) }
+                val lastTapTime = remember { mutableLongStateOf(0L) }
+                Column(
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .pointerInput(Unit) {
+                            detectTapGestures(
+                                onTap = {
+                                    val now = System.currentTimeMillis()
+
+                                    if (now - lastTapTime.longValue > 400) {
+                                        tapCount.intValue = 0
+                                    }
+
+                                    tapCount.intValue++
+                                    lastTapTime.longValue = now
+
+                                    if (tapCount.intValue >= 5) {
+                                        tapCount.intValue = 0
+                                        viewModel.activateDemoMode()
+                                    }
+                                })
+                        }) {
+                    Text(
+                        text = stringResource(R.string.airpods_not_connected), style = TextStyle(
+                            fontSize = 24.sp,
+                            fontWeight = FontWeight.Medium,
+                            color = if (isSystemInDarkTheme()) Color.White else Color.Black,
+                            fontFamily = FontFamily(Font(R.font.sf_pro))
+                        ), textAlign = TextAlign.Center, modifier = Modifier.fillMaxWidth()
+                    )
+                    Spacer(Modifier.height(24.dp))
+                    Text(
+                        text = stringResource(R.string.airpods_not_connected_description),
+                        style = TextStyle(
+                            fontSize = 16.sp,
+                            fontWeight = FontWeight.Light,
+                            color = if (isSystemInDarkTheme()) Color.White else Color.Black,
+                            fontFamily = FontFamily(Font(R.font.sf_pro))
+                        ),
+                        textAlign = TextAlign.Center,
+                        modifier = Modifier.fillMaxWidth(),
+                    )
+                }
+
+                Spacer(Modifier.height(32.dp))
+                if (!BuildConfig.PLAY_BUILD) {
+                    StyledButton(
+                        onClick = { navController.navigate("troubleshooting") },
+                        backdrop = backdrop,
+                        modifier = Modifier
+                            .fillMaxWidth(0.9f)
+                    ) {
+                        Text(
+                            text = stringResource(R.string.troubleshooting),
+                            style = TextStyle(
+                                fontSize = 16.sp,
+                                fontWeight = FontWeight.Medium,
+                                fontFamily = FontFamily(Font(R.font.sf_pro)),
+                                color = if (isSystemInDarkTheme()) Color.White else Color.Black
+                            )
+                        )
+                    }
+                    Spacer(Modifier.height(16.dp))
+                }
+                if (state.connectionSuccessful) {
+                    StyledButton(
+                        onClick = {
+                            viewModel.reconnectFromSavedMac()
+                        }, backdrop = backdrop, modifier = Modifier.fillMaxWidth(0.9f)
+                    ) {
+                        Text(
+                            text = stringResource(R.string.reconnect_to_last_device),
+                            style = TextStyle(
+                                fontSize = 16.sp,
+                                fontWeight = FontWeight.Medium,
+                                fontFamily = FontFamily(Font(R.font.sf_pro)),
+                                color = if (isSystemInDarkTheme()) Color.White else Color.Black
+                            )
+                        )
+                    }
+                }
+            }
+        }
+    }
+}

android/app/src/main/java/me/kavishdevar/librepods/presentation/screens/AppSettingsScreen.kt

@@ -0,0 +1,729 @@
+/*
+    LibrePods - AirPods liberated from Apple’s ecosystem
+    Copyright (C) 2025 LibrePods contributors
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+package me.kavishdevar.librepods.presentation.screens
+
+import android.content.Intent
+import android.content.pm.PackageManager
+import android.os.Build
+import android.widget.Toast
+import androidx.compose.foundation.background
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.foundation.text.input.TextFieldState
+import androidx.compose.foundation.text.input.clearText
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material3.AlertDialog
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.HorizontalDivider
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.OutlinedTextFieldDefaults
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.focus.FocusRequester
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.Font
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.input.KeyboardCapitalization
+import androidx.compose.ui.text.input.KeyboardType
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.lerp
+import androidx.compose.ui.unit.sp
+import androidx.core.net.toUri
+import androidx.lifecycle.viewmodel.compose.viewModel
+import androidx.navigation.NavController
+import com.kyant.backdrop.backdrops.layerBackdrop
+import com.kyant.backdrop.backdrops.rememberLayerBackdrop
+import dev.chrisbanes.haze.hazeSource
+import me.kavishdevar.librepods.BuildConfig
+import me.kavishdevar.librepods.R
+import me.kavishdevar.librepods.presentation.components.AppInfoCard
+import me.kavishdevar.librepods.presentation.components.DeviceInfoCard
+import me.kavishdevar.librepods.presentation.components.NavigationButton
+import me.kavishdevar.librepods.presentation.components.StyledBottomSheet
+import me.kavishdevar.librepods.presentation.components.StyledButton
+import me.kavishdevar.librepods.presentation.components.StyledIconButton
+import me.kavishdevar.librepods.presentation.components.StyledInputField
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
+import me.kavishdevar.librepods.presentation.components.StyledSlider
+import me.kavishdevar.librepods.presentation.components.StyledToggle
+import me.kavishdevar.librepods.presentation.viewmodel.AppSettingsViewModel
+import me.kavishdevar.librepods.utils.XposedState
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun AppSettingsScreen(
+    navController: NavController, viewModel: AppSettingsViewModel = viewModel()
+) {
+    val context = LocalContext.current
+    val scrollState = rememberScrollState()
+    val state by viewModel.uiState.collectAsState()
+
+    val backdrop = rememberLayerBackdrop()
+
+    val contactBottomSheet = remember { mutableStateOf(false) }
+    val subjectState = remember { TextFieldState() }
+    val descriptionState = remember { TextFieldState() }
+    val subjectFocusRequester = remember { FocusRequester() }
+    val descriptionFocusRequester = remember { FocusRequester() }
+
+    StyledScaffold(
+        title = stringResource(R.string.settings)
+    ) { topPadding, hazeState, bottomPadding ->
+        Column(
+            modifier = Modifier
+                .fillMaxSize()
+                .layerBackdrop(backdrop)
+                .hazeSource(state = hazeState)
+                .verticalScroll(scrollState)
+                .padding(horizontal = 16.dp)
+        ) {
+            Spacer(modifier = Modifier.height(topPadding))
+
+            val isDarkTheme = isSystemInDarkTheme()
+            val backgroundColor = if (isDarkTheme) Color(0xFF1C1C1E) else Color(0xFFFFFFFF)
+            val textColor = if (isDarkTheme) Color.White else Color.Black
+
+            if (!state.isPremium && state.connectionSuccessful) {
+                StyledButton(
+                    onClick = {
+                        navController.navigate("purchase_screen")
+                    },
+                    backdrop = rememberLayerBackdrop(),
+                    modifier = Modifier.fillMaxWidth(),
+                    maxScale = 0.05f,
+                    surfaceColor = if (isSystemInDarkTheme()) Color(0xFF916100) else Color(0xFFE59900)
+                ) {
+                    Text(
+                        stringResource(R.string.unlock_advanced_features),
+                        style = TextStyle(
+                            fontSize = 16.sp,
+                            fontWeight = FontWeight.Medium,
+                            fontFamily = FontFamily(Font(R.font.sf_pro)),
+                            color = Color.White
+                        ),
+                    )
+                }
+            }
+
+            if (state.connectionSuccessful) {
+                StyledToggle(
+                    title = stringResource(R.string.widget),
+                    label = stringResource(R.string.show_phone_battery_in_widget),
+                    description = stringResource(R.string.show_phone_battery_in_widget_description),
+                    checked = state.showPhoneBatteryInWidget,
+                    onCheckedChange = viewModel::setShowPhoneBatteryInWidget,
+                    enabled = state.isPremium
+                )
+
+                Text(
+                    text = stringResource(R.string.popup_animations), style = TextStyle(
+                        fontSize = 14.sp,
+                        fontWeight = FontWeight.Bold,
+                        color = textColor.copy(alpha = 0.6f),
+                        fontFamily = FontFamily(Font(R.font.sf_pro))
+                    ), modifier = Modifier.padding(16.dp, bottom = 2.dp, top = 24.dp)
+                )
+
+                Spacer(modifier = Modifier.height(2.dp))
+
+                Column(
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .background(
+                            backgroundColor, RoundedCornerShape(28.dp)
+                        )
+                        .padding(vertical = 4.dp)
+                ) {
+                    StyledToggle(
+                        label = stringResource(R.string.show_bottom_sheet_popup),
+                        description = stringResource(R.string.show_bottom_sheet_popup_description),
+                        checked = state.showBottomSheetPopup,
+                        onCheckedChange = viewModel::setShowBottomSheetPopup,
+                        independent = false
+                    )
+
+                    HorizontalDivider(
+                        thickness = 1.dp,
+                        color = Color(0x40888888),
+                        modifier = Modifier.padding(horizontal = 12.dp)
+                    )
+
+                    StyledToggle(
+                        label = stringResource(R.string.show_island_popup),
+                        description = stringResource(R.string.show_island_popup_description),
+                        checked = state.showIslandPopup,
+                        onCheckedChange = viewModel::setShowIslandPopup,
+                        independent = false
+                    )
+                }
+
+                Text(
+                    text = stringResource(R.string.conversational_awareness), style = TextStyle(
+                        fontSize = 14.sp,
+                        fontWeight = FontWeight.Bold,
+                        color = textColor.copy(alpha = 0.6f),
+                        fontFamily = FontFamily(Font(R.font.sf_pro))
+                    ), modifier = Modifier.padding(16.dp, bottom = 2.dp, top = 24.dp)
+                )
+
+                Spacer(modifier = Modifier.height(2.dp))
+
+                Column(
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .background(
+                            backgroundColor, RoundedCornerShape(28.dp)
+                        )
+                        .padding(vertical = 4.dp)
+                ) {
+                    StyledToggle(
+                        label = stringResource(R.string.conversational_awareness_pause_music),
+                        description = stringResource(R.string.conversational_awareness_pause_music_description),
+                        checked = state.conversationalAwarenessPauseMusicEnabled,
+                        onCheckedChange = viewModel::setConversationalAwarenessPauseMusicEnabled,
+                        independent = false,
+                        enabled = state.isPremium
+                    )
+
+                    HorizontalDivider(
+                        thickness = 1.dp,
+                        color = Color(0x40888888),
+                        modifier = Modifier.padding(horizontal = 12.dp)
+                    )
+
+                    StyledToggle(
+                        label = stringResource(R.string.relative_conversational_awareness_volume),
+                        description = stringResource(R.string.relative_conversational_awareness_volume_description),
+                        checked = state.relativeConversationalAwarenessVolumeEnabled,
+                        onCheckedChange = viewModel::setRelativeConversationalAwarenessVolumeEnabled,
+                        independent = false,
+                        enabled = state.isPremium,
+                    )
+                }
+
+                Spacer(modifier = Modifier.height(16.dp))
+
+                val conversationalAwarenessVolume = state.conversationalAwarenessVolume
+                LaunchedEffect(conversationalAwarenessVolume) {
+                    viewModel.setConversationalAwarenessVolume(conversationalAwarenessVolume)
+                }
+
+                StyledSlider(
+                    label = stringResource(R.string.conversational_awareness_volume),
+                    value = conversationalAwarenessVolume,
+                    valueRange = 10f..85f,
+                    snapPoints = listOf(44f),
+                    startLabel = "10%",
+                    endLabel = "85%",
+                    onValueChange = { newValue ->
+                        viewModel.setConversationalAwarenessVolume(
+                            newValue
+                        )
+                    },
+                    independent = true,
+                    enabled = state.isPremium
+                )
+
+//            if (!BuildConfig.PLAY_BUILD) {
+//                Spacer(modifier = Modifier.height(16.dp))
+//
+//                NavigationButton(
+//                    to = "",
+//                    title = stringResource(R.string.camera_control),
+//                    name = stringResource(R.string.set_custom_camera_package),
+//                    navController = navController,
+//                    onClick = {
+//                        if (state.isPremium) viewModel.setShowCameraDialog(true)
+//                    },
+//                    independent = true,
+//                    description = stringResource(R.string.camera_control_app_description)
+//                )
+//            }
+
+                Spacer(modifier = Modifier.height(16.dp))
+                if (context.checkSelfPermission("android.permission.BLUETOOTH_PRIVILEGED") == PackageManager.PERMISSION_GRANTED) {
+                    StyledToggle(
+                        title = stringResource(R.string.ear_detection),
+                        label = stringResource(R.string.disconnect_when_not_wearing),
+                        description = stringResource(R.string.disconnect_when_not_wearing_description),
+                        checked = state.disconnectWhenNotWearing,
+                        onCheckedChange = viewModel::setDisconnectWhenNotWearing,
+                        enabled = state.isPremium
+                    )
+                }
+
+                Text(
+                    text = stringResource(R.string.takeover_airpods_state), style = TextStyle(
+                        fontSize = 14.sp,
+                        fontWeight = FontWeight.Bold,
+                        color = textColor.copy(alpha = 0.6f),
+                        fontFamily = FontFamily(Font(R.font.sf_pro))
+                    ), modifier = Modifier.padding(16.dp, bottom = 2.dp, top = 24.dp)
+                )
+
+                Spacer(modifier = Modifier.height(4.dp))
+
+                Column(
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .background(
+                            backgroundColor, RoundedCornerShape(28.dp)
+                        )
+                        .padding(vertical = 4.dp)
+                ) {
+                    StyledToggle(
+                        label = stringResource(R.string.takeover_disconnected),
+                        description = stringResource(R.string.takeover_disconnected_desc),
+                        checked = state.takeoverWhenDisconnected,
+                        onCheckedChange = viewModel::setTakeoverWhenDisconnected,
+                        independent = false,
+                        enabled = state.isPremium
+                    )
+                    HorizontalDivider(
+                        thickness = 1.dp,
+                        color = Color(0x40888888),
+                        modifier = Modifier.padding(horizontal = 12.dp)
+                    )
+
+                    StyledToggle(
+                        label = stringResource(R.string.takeover_idle),
+                        description = stringResource(R.string.takeover_idle_desc),
+                        checked = state.takeoverWhenIdle,
+                        onCheckedChange = viewModel::setTakeoverWhenIdle,
+                        independent = false,
+                        enabled = state.isPremium
+                    )
+                    HorizontalDivider(
+                        thickness = 1.dp,
+                        color = Color(0x40888888),
+                        modifier = Modifier.padding(horizontal = 12.dp)
+                    )
+
+                    StyledToggle(
+                        label = stringResource(R.string.takeover_music),
+                        description = stringResource(R.string.takeover_music_desc),
+                        checked = state.takeoverWhenMusic,
+                        onCheckedChange = viewModel::setTakeoverWhenMusic,
+                        independent = false,
+                        enabled = state.isPremium
+                    )
+                    HorizontalDivider(
+                        thickness = 1.dp,
+                        color = Color(0x40888888),
+                        modifier = Modifier.padding(horizontal = 12.dp)
+                    )
+
+                    StyledToggle(
+                        label = stringResource(R.string.takeover_call),
+                        description = stringResource(R.string.takeover_call_desc),
+                        checked = state.takeoverWhenCall,
+                        onCheckedChange = viewModel::setTakeoverWhenCall,
+                        independent = false,
+                        enabled = state.isPremium
+                    )
+                }
+
+                Spacer(modifier = Modifier.height(16.dp))
+
+                Text(
+                    text = stringResource(R.string.takeover_phone_state), style = TextStyle(
+                        fontSize = 14.sp,
+                        fontWeight = FontWeight.Bold,
+                        color = textColor.copy(alpha = 0.6f),
+                        fontFamily = FontFamily(Font(R.font.sf_pro))
+                    ), modifier = Modifier.padding(horizontal = 16.dp)
+                )
+                Spacer(modifier = Modifier.height(4.dp))
+                Column(
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .background(
+                            backgroundColor, RoundedCornerShape(28.dp)
+                        )
+                        .padding(vertical = 4.dp)
+                ) {
+                    StyledToggle(
+                        label = stringResource(R.string.takeover_ringing_call),
+                        description = stringResource(R.string.takeover_ringing_call_desc),
+                        checked = state.takeoverWhenRingingCall,
+                        onCheckedChange = viewModel::setTakeoverWhenRingingCall,
+                        independent = false,
+                        enabled = state.isPremium
+                    )
+                    HorizontalDivider(
+                        thickness = 1.dp,
+                        color = Color(0x40888888),
+                        modifier = Modifier.padding(horizontal = 12.dp)
+                    )
+
+                    StyledToggle(
+                        label = stringResource(R.string.takeover_media_start),
+                        description = stringResource(R.string.takeover_media_start_desc),
+                        checked = state.takeoverWhenMediaStart,
+                        onCheckedChange = viewModel::setTakeoverWhenMediaStart,
+                        independent = false,
+                        enabled = state.isPremium
+                    )
+                }
+
+                Text(
+                    text = stringResource(R.string.advanced_options), style = TextStyle(
+                        fontSize = 14.sp,
+                        fontWeight = FontWeight.Bold,
+                        color = textColor.copy(alpha = 0.6f),
+                        fontFamily = FontFamily(Font(R.font.sf_pro))
+                    ), modifier = Modifier.padding(16.dp, bottom = 2.dp, top = 24.dp)
+                )
+
+                Spacer(modifier = Modifier.height(2.dp))
+
+                StyledToggle(
+                    label = stringResource(R.string.use_alternate_head_tracking_packets),
+                    description = stringResource(R.string.use_alternate_head_tracking_packets_description),
+                    checked = state.useAlternateHeadTrackingPackets,
+                    onCheckedChange = viewModel::setUseAlternateHeadTrackingPackets,
+                    independent = true,
+                    enabled = state.isPremium
+                )
+                Spacer(modifier = Modifier.height(16.dp))
+            } else {
+                Box(
+                    modifier = Modifier
+                        .background(if (isDarkTheme) Color.Black else Color(0xFFF2F2F7))
+                        .padding(horizontal = 16.dp)
+                        .padding(top = 16.dp, bottom = 2.dp)
+                ) {
+                    Text(
+                        text = stringResource(R.string.customizations_unavailable),
+                        style = TextStyle(
+                            fontSize = 16.sp,
+                            fontWeight = FontWeight.Normal,
+                            fontFamily = FontFamily(Font(R.font.sf_pro)),
+                            color = textColor.copy(alpha = 0.6f),
+                        ),
+                        modifier = Modifier
+                    )
+                }
+            }
+
+            if (XposedState.isAvailable && XposedState.bluetoothScopeEnabled) {
+                val restartBluetoothText =
+                    stringResource(R.string.found_offset_restart_bluetooth)
+                StyledToggle(
+                    label = stringResource(R.string.act_as_an_apple_device) + " (${
+                        stringResource(
+                            R.string.requires_xposed
+                        )
+                    })",
+                    description = stringResource(R.string.act_as_an_apple_device_description),
+                    checked = state.vendorIdHook,
+                    onCheckedChange = { enabled ->
+                        Toast.makeText(context, restartBluetoothText, Toast.LENGTH_SHORT).show()
+                        viewModel.setVendorIdHook(enabled)
+                    },
+                    independent = true,
+                    enabled = state.isPremium
+                )
+            }
+
+            if (!BuildConfig.PLAY_BUILD) {
+                Spacer(modifier = Modifier.height(16.dp))
+                NavigationButton(
+                    to = "troubleshooting",
+                    name = stringResource(R.string.troubleshooting),
+                    navController = navController,
+                    independent = true,
+                    description = stringResource(R.string.troubleshooting_description)
+                )
+            }
+
+            Spacer(modifier = Modifier.height(8.dp))
+
+            Box(
+                modifier = Modifier
+                    .background(if (isDarkTheme) Color.Black else Color(0xFFF2F2F7))
+                    .padding(start = 16.dp, bottom = 2.dp, top = 24.dp, end = 4.dp)
+            ) {
+                Text(
+                    text = stringResource(R.string.contact), style = TextStyle(
+                        fontSize = 14.sp,
+                        fontWeight = FontWeight.Bold,
+                        color = textColor.copy(alpha = 0.6f),
+                        fontFamily = FontFamily(Font(R.font.sf_pro))
+                    )
+                )
+            }
+
+            Spacer(modifier = Modifier.height(4.dp))
+            Column(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .background(
+                        backgroundColor, RoundedCornerShape(28.dp)
+                    )
+                    .clip(RoundedCornerShape(28.dp))
+            ) {
+                NavigationButton(
+                    to = "",
+                    name = stringResource(R.string.email),
+                    navController = navController,
+                    onClick = { contactBottomSheet.value = true },
+                    independent = false
+                )
+
+                HorizontalDivider(
+                    thickness = 1.dp,
+                    color = Color(0x40888888),
+                    modifier = Modifier.padding(horizontal = 12.dp)
+                )
+
+                NavigationButton(
+                    to = "",
+                    name = stringResource(R.string.discord),
+                    navController = navController,
+                    onClick = {
+                        val intent =
+                            Intent(Intent.ACTION_VIEW, "https://discord.gg/Ts4wupXcmc".toUri())
+                        context.startActivity(intent)
+                    },
+                    independent = false
+                )
+
+                HorizontalDivider(
+                    thickness = 1.dp,
+                    color = Color(0x40888888),
+                    modifier = Modifier.padding(horizontal = 12.dp)
+                )
+
+                NavigationButton(
+                    to = "",
+                    name = stringResource(R.string.github_issues),
+                    navController = navController,
+                    onClick = {
+                        val intent = Intent(
+                            Intent.ACTION_VIEW,
+                            "https://github.com/kavishdevar/librepods/issues".toUri()
+                        )
+                        context.startActivity(intent)
+                    },
+                    independent = false
+                )
+            }
+
+            Spacer(modifier = Modifier.height(20.dp))
+            DeviceInfoCard()
+            Spacer(modifier = Modifier.height(16.dp))
+            AppInfoCard()
+
+            Spacer(modifier = Modifier.height(16.dp))
+
+            NavigationButton(
+                to = "open_source_licenses",
+                name = stringResource(R.string.open_source_licenses),
+                navController = navController,
+                independent = true
+            )
+
+            Spacer(modifier = Modifier.height(bottomPadding))
+
+            if (state.showCameraDialog) {
+                AlertDialog(onDismissRequest = { viewModel.setShowCameraDialog(false) }, title = {
+                    Text(
+                        stringResource(R.string.set_custom_camera_package),
+                        fontFamily = FontFamily(Font(R.font.sf_pro)),
+                        fontWeight = FontWeight.Medium
+                    )
+                }, text = {
+                    Column {
+                        Text(
+                            stringResource(R.string.enter_custom_camera_package),
+                            fontFamily = FontFamily(Font(R.font.sf_pro)),
+                            modifier = Modifier.padding(bottom = 8.dp)
+                        )
+
+                        OutlinedTextField(
+                            value = state.cameraPackageValue,
+                            onValueChange = {
+                                viewModel.setCameraPackageValue(it)
+                                viewModel.setCameraPackageError(null)
+                            },
+                            modifier = Modifier.fillMaxWidth(),
+                            isError = state.cameraPackageError != null,
+                            keyboardOptions = KeyboardOptions(
+                                keyboardType = KeyboardType.Ascii,
+                                capitalization = KeyboardCapitalization.None
+                            ),
+                            colors = OutlinedTextFieldDefaults.colors(
+                                focusedBorderColor = if (isDarkTheme) Color(0xFF007AFF) else Color(
+                                    0xFF3C6DF5
+                                ),
+                                unfocusedBorderColor = if (isDarkTheme) Color.Gray else Color.LightGray
+                            ),
+                            supportingText = {
+                                if (state.cameraPackageError != null) {
+                                    Text(
+                                        state.cameraPackageError ?: "",
+                                        color = MaterialTheme.colorScheme.error
+                                    )
+                                }
+                            },
+                            label = { Text(stringResource(R.string.custom_camera_package)) })
+                    }
+                }, confirmButton = {
+                    val successText = stringResource(R.string.custom_camera_package_set_success)
+                    TextButton(
+                        onClick = {
+                            viewModel.saveCameraPackage()
+                            Toast.makeText(context, successText, Toast.LENGTH_SHORT).show()
+                        }) {
+                        Text(
+                            "Save",
+                            fontFamily = FontFamily(Font(R.font.sf_pro)),
+                            fontWeight = FontWeight.Medium
+                        )
+                    }
+                }, dismissButton = {
+                    TextButton(
+                        onClick = { viewModel.setShowCameraDialog(false) }) {
+                        Text(
+                            "Cancel",
+                            fontFamily = FontFamily(Font(R.font.sf_pro)),
+                            fontWeight = FontWeight.Medium
+                        )
+                    }
+                })
+            }
+        }
+        StyledBottomSheet(
+            visible = contactBottomSheet.value,
+            onDismiss = { contactBottomSheet.value = false },
+            backdrop = backdrop
+        ) { innerBackdrop, progress ->
+            val animatedPadding = lerp(16.dp, 2.dp, progress)
+
+            Column(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(horizontal = animatedPadding)
+                    .padding(bottom = 16.dp),
+            ) {
+               Row(
+                   modifier = Modifier
+                       .fillMaxWidth()
+                       .padding(bottom = 16.dp),
+                   horizontalArrangement = Arrangement.SpaceBetween,
+                   verticalAlignment = Alignment.CenterVertically
+               ) {
+                   StyledIconButton(
+                       icon = "\uDBC0\uDD84",
+                       backdrop = innerBackdrop,
+                       onClick = { contactBottomSheet.value = false }
+                   )
+                   Text (
+                       text = stringResource(R.string.describe_your_issue),
+                       style = TextStyle(
+                           fontSize = 18.sp,
+                           fontFamily = FontFamily(Font(R.font.sf_pro)),
+                           fontWeight = FontWeight.Bold,
+                           textAlign = TextAlign.Center,
+                           color = if (isSystemInDarkTheme()) Color.White else Color.Black
+                       )
+                   )
+                   StyledIconButton(
+                       icon = "\uDBC0\uDE1F",
+                       backdrop = innerBackdrop,
+                       surfaceColor = if (isSystemInDarkTheme()) Color(0xFF0091FF) else Color(0xFF0088FF),
+                       iconTint = if (subjectState.text.isNotEmpty() && descriptionState.text.isNotEmpty()) Color.White else Color.Gray,
+                       enabled = subjectState.text.isNotEmpty() && descriptionState.text.isNotEmpty(),
+                       onClick = {
+                           contactBottomSheet.value = false
+                           val intent = Intent(Intent.ACTION_SENDTO).apply {
+                               data = "mailto:".toUri()
+                               putExtra(Intent.EXTRA_EMAIL, arrayOf("contact@kavish.xyz"))
+                               putExtra(Intent.EXTRA_SUBJECT, "LibrePods: ${subjectState.text}")
+                               putExtra(
+                                   Intent.EXTRA_TEXT,
+                                   "${descriptionState.text}" +
+                                       "\n\n----------" +
+                                       "\nPhone details:" +
+                                       "\nMANUFACTURER: ${Build.MANUFACTURER}" +
+                                       "\nMODEL: ${Build.MODEL} (${Build.PRODUCT})" +
+                                       "\nDISPLAY_VERSION: ${Build.DISPLAY}" +
+                                       "\nID: ${Build.ID} (SDK ${Build.VERSION.SDK_INT_FULL})" +
+                                       "\nXposed enabled/active: ${XposedState.isAvailable}/${XposedState.bluetoothScopeEnabled}" +
+                                       "\n\nApp details:" +
+                                       "\nVERSION: ${BuildConfig.VERSION_NAME}" +
+                                       "\nVERSION_CODE: ${BuildConfig.VERSION_CODE}" +
+                                       "\nFLAVOR: ${BuildConfig.FLAVOR}" +
+                                       "\nBUILD_TYPE: ${BuildConfig.BUILD_TYPE}"
+                               )
+                           }
+                           context.startActivity(intent)
+                           subjectState.clearText()
+                           descriptionState.clearText()
+                       }
+                   )
+               }
+
+               Spacer(modifier = Modifier.height(8.dp))
+
+               StyledInputField(
+                   inputState = subjectState,
+                   focusRequester = subjectFocusRequester,
+                   placeholder = stringResource(R.string.subject),
+               )
+
+               Spacer(modifier = Modifier.height(12.dp))
+
+               StyledInputField(
+                   inputState = descriptionState,
+                   focusRequester = descriptionFocusRequester,
+                   placeholder = stringResource(R.string.describe_your_issue),
+                   singleLine = false
+               )
+            }
+        }
+    }
+}

android/app/src/main/java/me/kavishdevar/librepods/presentation/screens/CameraControlScreen.kt

@@ -0,0 +1,111 @@
+/*
+    LibrePods - AirPods liberated from Apple’s ecosystem
+    Copyright (C) 2025 LibrePods contributors
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+package me.kavishdevar.librepods.presentation.screens
+
+import android.accessibilityservice.AccessibilityServiceInfo
+import android.content.ComponentName
+import android.content.Context
+import android.content.Intent
+import android.provider.Settings
+import android.view.accessibility.AccessibilityManager
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.unit.dp
+import com.kyant.backdrop.backdrops.layerBackdrop
+import com.kyant.backdrop.backdrops.rememberLayerBackdrop
+import me.kavishdevar.librepods.R
+import me.kavishdevar.librepods.presentation.components.SelectItem
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
+import me.kavishdevar.librepods.presentation.components.StyledSelectList
+import me.kavishdevar.librepods.services.AppListenerService
+import me.kavishdevar.librepods.bluetooth.AACPManager.Companion.StemPressType
+import me.kavishdevar.librepods.presentation.viewmodel.AirPodsViewModel
+
+@Composable
+fun CameraControlScreen(viewModel: AirPodsViewModel) {
+    val context = LocalContext.current
+    val currentCameraAction by viewModel.cameraAction.collectAsState()
+
+    fun isAppListenerServiceEnabled(context: Context): Boolean {
+        val am = context.getSystemService(Context.ACCESSIBILITY_SERVICE) as AccessibilityManager
+        val enabledServices =
+            am.getEnabledAccessibilityServiceList(AccessibilityServiceInfo.FEEDBACK_ALL_MASK)
+        val serviceComponent = ComponentName(context, AppListenerService::class.java)
+        return enabledServices.any {
+            it.resolveInfo.serviceInfo.packageName == serviceComponent.packageName &&
+                it.resolveInfo.serviceInfo.name == serviceComponent.className
+        }
+    }
+
+    fun handleSelection(action: StemPressType?) {
+        if (action != null && !isAppListenerServiceEnabled(context)) {
+            context.startActivity(Intent(Settings.ACTION_ACCESSIBILITY_SETTINGS))
+        } else {
+            viewModel.setCameraAction(action)
+        }
+    }
+
+    val cameraOptions = remember(currentCameraAction) {
+        listOf(
+            SelectItem(
+                name = "Off",
+                selected = currentCameraAction == null,
+                onClick = { handleSelection(null) }
+            ),
+            SelectItem(
+                name = "Press once",
+                selected = currentCameraAction == StemPressType.SINGLE_PRESS,
+                onClick = { handleSelection(StemPressType.SINGLE_PRESS) }
+            ),
+            SelectItem(
+                name = "Press and hold AirPods",
+                selected = currentCameraAction == StemPressType.LONG_PRESS,
+                onClick = { handleSelection(StemPressType.LONG_PRESS) }
+            )
+        )
+    }
+
+    val backdrop = rememberLayerBackdrop()
+
+    StyledScaffold(
+        title = stringResource(R.string.camera_control)
+    ) { spacerHeight ->
+        Column(
+            modifier = Modifier
+                .fillMaxSize()
+                .layerBackdrop(backdrop)
+                .padding(horizontal = 16.dp),
+            verticalArrangement = Arrangement.spacedBy(16.dp)
+        ) {
+            Spacer(modifier = Modifier.height(spacerHeight))
+            StyledSelectList(items = cameraOptions)
+        }
+    }
+}

android/app/src/main/java/me/kavishdevar/librepods/presentation/screens/DebugScreen.kt

@@ -18,7 +18,7 @@
 
 @file:OptIn(ExperimentalHazeMaterialsApi::class, ExperimentalEncodingApi::class)
 
-package me.kavishdevar.librepods.screens
+package me.kavishdevar.librepods.presentation.screens
 
 import android.annotation.SuppressLint
 import android.content.ClipData
@@ -82,10 +82,10 @@ import dev.chrisbanes.haze.materials.ExperimentalHazeMaterialsApi
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
 import me.kavishdevar.librepods.R
-import me.kavishdevar.librepods.composables.StyledIconButton
-import me.kavishdevar.librepods.composables.StyledScaffold
-import me.kavishdevar.librepods.constants.BatteryStatus
-import me.kavishdevar.librepods.constants.isHeadTrackingData
+import me.kavishdevar.librepods.presentation.components.StyledIconButton
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
+import me.kavishdevar.librepods.data.BatteryStatus
+import me.kavishdevar.librepods.data.isHeadTrackingData
 import me.kavishdevar.librepods.services.ServiceManager
 import kotlin.io.encoding.ExperimentalEncodingApi
 
@@ -335,12 +335,11 @@ fun DebugScreen(navController: NavController) {
                         expandedItems.value = emptySet()
                     },
                     icon = "􀈑",
-                    darkMode = isDarkTheme,
                     backdrop = scaffoldBackdrop
                 )
             }
         ),
-    ) { spacerHeight, hazeState ->
+    ) { topPadding, hazeState, bottomPadding ->
         Column(
             modifier = Modifier
                 .fillMaxSize()
@@ -349,7 +348,7 @@ fun DebugScreen(navController: NavController) {
                 .layerBackdrop(backdrop)
                 .padding(horizontal = 16.dp)
         ) {
-            Spacer(modifier = Modifier.height(spacerHeight))
+            Spacer(modifier = Modifier.height(topPadding))
             LazyColumn(
                 state = listState,
                 modifier = Modifier

android/app/src/main/java/me/kavishdevar/librepods/presentation/screens/HeadTrackingScreen.kt

@@ -21,12 +21,13 @@
 
 @file:OptIn(ExperimentalEncodingApi::class)
 
-package me.kavishdevar.librepods.screens
+package me.kavishdevar.librepods.presentation.screens
 
-import android.content.Context
-import android.os.Build
+import android.graphics.Paint
+import android.graphics.RadialGradient
+import android.graphics.Shader
+import android.graphics.Typeface
 import android.util.Log
-import androidx.annotation.RequiresApi
 import androidx.compose.animation.AnimatedContent
 import androidx.compose.animation.ExperimentalAnimationApi
 import androidx.compose.animation.core.tween
@@ -45,6 +46,7 @@ import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.foundation.verticalScroll
 import androidx.compose.material3.Card
 import androidx.compose.material3.CardDefaults
@@ -74,7 +76,6 @@ import androidx.compose.ui.graphics.asAndroidPath
 import androidx.compose.ui.graphics.drawscope.Stroke
 import androidx.compose.ui.graphics.nativeCanvas
 import androidx.compose.ui.graphics.toArgb
-import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.TextStyle
 import androidx.compose.ui.text.drawText
@@ -83,9 +84,9 @@ import androidx.compose.ui.text.font.FontFamily
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.rememberTextMeasurer
 import androidx.compose.ui.text.style.TextAlign
-import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
+import androidx.navigation.NavController
 import com.kyant.backdrop.backdrops.layerBackdrop
 import com.kyant.backdrop.backdrops.rememberLayerBackdrop
 import dev.chrisbanes.haze.hazeSource
@@ -94,10 +95,11 @@ import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
 import me.kavishdevar.librepods.R
-import me.kavishdevar.librepods.composables.StyledButton
-import me.kavishdevar.librepods.composables.StyledIconButton
-import me.kavishdevar.librepods.composables.StyledScaffold
-import me.kavishdevar.librepods.composables.StyledToggle
+import me.kavishdevar.librepods.presentation.components.StyledButton
+import me.kavishdevar.librepods.presentation.components.StyledIconButton
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
+import me.kavishdevar.librepods.presentation.components.StyledToggle
+import me.kavishdevar.librepods.presentation.viewmodel.AirPodsViewModel
 import me.kavishdevar.librepods.services.ServiceManager
 import me.kavishdevar.librepods.utils.HeadTracking
 import kotlin.io.encoding.ExperimentalEncodingApi
@@ -107,14 +109,14 @@ import kotlin.math.sin
 import kotlin.random.Random
 
 @ExperimentalHazeMaterialsApi
-@RequiresApi(Build.VERSION_CODES.Q)
 @OptIn(ExperimentalMaterial3Api::class, ExperimentalAnimationApi::class)
 @Composable
-fun HeadTrackingScreen() {
+fun HeadTrackingScreen(viewModel: AirPodsViewModel, navController: NavController) {
+    val state by viewModel.uiState.collectAsState()
     DisposableEffect(Unit) {
-        ServiceManager.getService()?.startHeadTracking()
+        viewModel.startHeadTracking()
         onDispose {
-            ServiceManager.getService()?.stopHeadTracking()
+            viewModel.stopHeadTracking()
         }
     }
     val isDarkTheme = isSystemInDarkTheme()
@@ -127,34 +129,35 @@ fun HeadTrackingScreen() {
         title = stringResource(R.string.head_tracking),
         actionButtons = listOf(
             { scaffoldBackdrop ->
-               var isActive by remember { mutableStateOf(ServiceManager.getService()?.isHeadTrackingActive == true) }
                 StyledIconButton(
                     onClick = {
-                        if (ServiceManager.getService()?.isHeadTrackingActive == false) {
-                            ServiceManager.getService()?.startHeadTracking()
+                        if (!state.headTrackingActive) {
+                            viewModel.startHeadTracking()
                             Log.d("HeadTrackingScreen", "Head tracking started")
                         } else {
-                            ServiceManager.getService()?.stopHeadTracking()
+                            viewModel.stopHeadTracking()
                             Log.d("HeadTrackingScreen", "Head tracking stopped")
                         }
                     },
-                    icon = if (isActive) "􀊅" else "􀊃",
-                    darkMode = isDarkTheme,
+                    icon = if (state.headTrackingActive) "􀊅" else "􀊃",
                     backdrop = scaffoldBackdrop
                 )
             }
         ),
-    ) { spacerHeight, hazeState ->
-        val sharedPreferences = LocalContext.current.getSharedPreferences("settings", Context.MODE_PRIVATE)
+    ) { topPadding, hazeState, _ ->
 
         var gestureText by remember { mutableStateOf("") }
         val coroutineScope = rememberCoroutineScope()
 
         var lastClickTime by remember { mutableLongStateOf(0L) }
         var shouldExplode by remember { mutableStateOf(false) }
+
+        val scrollState = rememberScrollState()
+
         Column(
             modifier = Modifier
-                .fillMaxWidth(),
+                .fillMaxWidth()
+                .verticalScroll(scrollState),
             horizontalAlignment = Alignment.CenterHorizontally
         ) {
             Column (
@@ -164,37 +167,50 @@ fun HeadTrackingScreen() {
                     .layerBackdrop(backdrop)
                     .padding(top = 8.dp)
                     .padding(horizontal = 16.dp)
-                    .verticalScroll(scrollState)
             ) {
-                Spacer(modifier = Modifier.height(spacerHeight))
+                Spacer(modifier = Modifier.height(topPadding))
+
+                if (!state.isPremium) {
+                    StyledButton(
+                        onClick = {
+                            navController.navigate("purchase_screen")
+                        },
+                        backdrop = rememberLayerBackdrop(),
+                        modifier = Modifier.fillMaxWidth(),
+                        maxScale = 0.05f,
+                        surfaceColor = if (isSystemInDarkTheme()) Color(0xFF916100) else Color(0xFFE59900)
+                    ) {
+                        Text(
+                            stringResource(R.string.unlock_advanced_features),
+                            style = TextStyle(
+                                fontSize = 16.sp,
+                                fontWeight = FontWeight.Medium,
+                                fontFamily = FontFamily(Font(R.font.sf_pro)),
+                                color = Color.White
+                            ),
+                        )
+                    }
+                    Spacer(modifier = Modifier.height(8.dp))
+                }
+
                 StyledToggle(
                     label = "Head Gestures",
-                    sharedPreferences = sharedPreferences,
-                    sharedPreferenceKey = "head_gestures",
-                )
-
-                Spacer(modifier = Modifier.height(2.dp))
-                Text(
-                    stringResource(R.string.head_gestures_details),
-                    style = TextStyle(
-                        fontSize = 14.sp,
-                        fontWeight = FontWeight.Normal,
-                        fontFamily = FontFamily(Font(R.font.sf_pro)),
-                        color = textColor.copy(0.6f)
-                    ),
-                    modifier = Modifier.padding(start = 4.dp)
+                    checked = state.headGesturesEnabled,
+                    onCheckedChange = { viewModel.setHeadGesturesEnabled(it) },
+                    enabled = state.isPremium || state.headGesturesEnabled,
+                    description = stringResource(R.string.head_gestures_details)
                 )
 
                 Spacer(modifier = Modifier.height(16.dp))
                 Text(
                     "Head Orientation",
                     style = TextStyle(
-                        fontSize = 18.sp,
-                        fontWeight = FontWeight.Medium,
-                        fontFamily = FontFamily(Font(R.font.sf_pro)),
-                        color = textColor
+                        fontSize = 14.sp,
+                        fontWeight = FontWeight.Bold,
+                        color = textColor.copy(alpha = 0.6f),
+                        fontFamily = FontFamily(Font(R.font.sf_pro))
                     ),
-                    modifier = Modifier.padding(start = 4.dp, bottom = 8.dp, top = 8.dp)
+                    modifier = Modifier.padding(start = 16.dp, bottom = 8.dp, top = 8.dp)
                 )
                 HeadVisualization()
 
@@ -202,12 +218,12 @@ fun HeadTrackingScreen() {
                 Text(
                     "Velocity",
                     style = TextStyle(
-                        fontSize = 18.sp,
-                        fontWeight = FontWeight.Medium,
-                        fontFamily = FontFamily(Font(R.font.sf_pro)),
-                        color = textColor
+                        fontSize = 14.sp,
+                        fontWeight = FontWeight.Bold,
+                        color = textColor.copy(alpha = 0.6f),
+                        fontFamily = FontFamily(Font(R.font.sf_pro))
                     ),
-                    modifier = Modifier.padding(start = 4.dp, bottom = 8.dp, top = 8.dp)
+                    modifier = Modifier.padding(start = 16.dp, bottom = 8.dp, top = 8.dp)
                 )
                 AccelerationPlot()
 
@@ -383,7 +399,8 @@ private fun HeadVisualization() {
             .aspectRatio(2f),
         colors = CardDefaults.cardColors(
             containerColor = backgroundColor
-        )
+        ),
+        shape = RoundedCornerShape(28.dp)
     ) {
         Box(
             modifier = Modifier.fillMaxSize(),
@@ -458,9 +475,9 @@ private fun HeadVisualization() {
                 spherePath.close()
 
                 drawContext.canvas.nativeCanvas.apply {
-                    val paint = android.graphics.Paint().apply {
-                        style = android.graphics.Paint.Style.FILL
-                        shader = android.graphics.RadialGradient(
+                    val paint = Paint().apply {
+                        style = Paint.Style.FILL
+                        shader = RadialGradient(
                             center.x + sinY * faceRadius * 0.3f,
                             center.y - sinP * faceRadius * 0.3f,
                             faceRadius * 1.4f,
@@ -472,14 +489,14 @@ private fun HeadVisualization() {
                                 backgroundColor.copy(alpha = 0.7f).toArgb()
                             ),
                             floatArrayOf(0.3f, 0.5f, 0.7f, 0.8f, 1f),
-                            android.graphics.Shader.TileMode.CLAMP
+                            Shader.TileMode.CLAMP
                         )
                     }
                     drawPath(spherePath.asAndroidPath(), paint)
 
-                    val highlightPaint = android.graphics.Paint().apply {
-                        style = android.graphics.Paint.Style.FILL
-                        shader = android.graphics.RadialGradient(
+                    val highlightPaint = Paint().apply {
+                        style = Paint.Style.FILL
+                        shader = RadialGradient(
                             center.x - faceRadius * 0.4f - sinY * faceRadius * 0.5f,
                             center.y - faceRadius * 0.4f - sinP * faceRadius * 0.5f,
                             faceRadius * 0.9f,
@@ -489,15 +506,15 @@ private fun HeadVisualization() {
                                 android.graphics.Color.TRANSPARENT
                             ),
                             floatArrayOf(0f, 0.3f, 1f),
-                            android.graphics.Shader.TileMode.CLAMP
+                            Shader.TileMode.CLAMP
                         )
                         alpha = if (darkTheme) 30 else 60
                     }
                     drawPath(spherePath.asAndroidPath(), highlightPaint)
 
-                    val secondaryHighlightPaint = android.graphics.Paint().apply {
-                        style = android.graphics.Paint.Style.FILL
-                        shader = android.graphics.RadialGradient(
+                    val secondaryHighlightPaint = Paint().apply {
+                        style = Paint.Style.FILL
+                        shader = RadialGradient(
                             center.x + faceRadius * 0.3f + sinY * faceRadius * 0.3f,
                             center.y + faceRadius * 0.3f - sinP * faceRadius * 0.3f,
                             faceRadius * 0.7f,
@@ -506,15 +523,15 @@ private fun HeadVisualization() {
                                 android.graphics.Color.TRANSPARENT
                             ),
                             floatArrayOf(0f, 1f),
-                            android.graphics.Shader.TileMode.CLAMP
+                            Shader.TileMode.CLAMP
                         )
                         alpha = if (darkTheme) 15 else 30
                     }
                     drawPath(spherePath.asAndroidPath(), secondaryHighlightPaint)
 
-                    val shadowPaint = android.graphics.Paint().apply {
-                        style = android.graphics.Paint.Style.FILL
-                        shader = android.graphics.RadialGradient(
+                    val shadowPaint = Paint().apply {
+                        style = Paint.Style.FILL
+                        shader = RadialGradient(
                             center.x + sinY * faceRadius * 0.5f,
                             center.y - sinP * faceRadius * 0.5f,
                             faceRadius * 1.1f,
@@ -523,7 +540,7 @@ private fun HeadVisualization() {
                                 android.graphics.Color.BLACK
                             ),
                             floatArrayOf(0.7f, 1f),
-                            android.graphics.Shader.TileMode.CLAMP
+                            Shader.TileMode.CLAMP
                         )
                         alpha = if (darkTheme) 40 else 20
                     }
@@ -583,13 +600,13 @@ private fun HeadVisualization() {
                 }
 
                 drawContext.canvas.nativeCanvas.apply {
-                    val paint = android.graphics.Paint().apply {
+                    val paint = Paint().apply {
                         color = if (darkTheme) android.graphics.Color.WHITE else android.graphics.Color.BLACK
                         textSize = 12.sp.toPx()
-                        textAlign = android.graphics.Paint.Align.RIGHT
-                        typeface = android.graphics.Typeface.create(
+                        textAlign = Paint.Align.RIGHT
+                        typeface = Typeface.create(
                             "SF Pro",
-                            android.graphics.Typeface.NORMAL
+                            Typeface.NORMAL
                         )
                     }
 
@@ -634,7 +651,8 @@ private fun AccelerationPlot() {
             .height(300.dp),
         colors = CardDefaults.cardColors(
             containerColor = if (darkTheme) Color(0xFF1C1C1E) else Color.White
-        )
+        ),
+        shape = RoundedCornerShape(28.dp)
     ) {
         Box(
             modifier = Modifier
@@ -702,10 +720,10 @@ private fun AccelerationPlot() {
                 }
 
                 drawContext.canvas.nativeCanvas.apply {
-                    val paint = android.graphics.Paint().apply {
+                    val paint = Paint().apply {
                         color = if (darkTheme) android.graphics.Color.WHITE else android.graphics.Color.BLACK
                         textSize = 12.sp.toPx()
-                        textAlign = android.graphics.Paint.Align.RIGHT
+                        textAlign = Paint.Align.RIGHT
                     }
 
                     drawText("${maxAbs.toInt()}", 30.dp.toPx(), 20.dp.toPx(), paint)
@@ -718,20 +736,20 @@ private fun AccelerationPlot() {
 
                 drawCircle(Color(0xFF007AFF), 5.dp.toPx(), Offset(width - 150.dp.toPx(), legendY))
                 drawContext.canvas.nativeCanvas.apply {
-                    val paint = android.graphics.Paint().apply {
+                    val paint = Paint().apply {
                         color = if (darkTheme) android.graphics.Color.WHITE else android.graphics.Color.BLACK
                         textSize = 12.sp.toPx()
-                        textAlign = android.graphics.Paint.Align.LEFT
+                        textAlign = Paint.Align.LEFT
                     }
                     drawText("Horizontal", width - 140.dp.toPx(), textOffsetY, paint)
                 }
 
                 drawCircle(Color(0xFFFF3B30), 5.dp.toPx(), Offset(width - 70.dp.toPx(), legendY))
                 drawContext.canvas.nativeCanvas.apply {
-                    val paint = android.graphics.Paint().apply {
+                    val paint = Paint().apply {
                         color = if (darkTheme) android.graphics.Color.WHITE else android.graphics.Color.BLACK
                         textSize = 12.sp.toPx()
-                        textAlign = android.graphics.Paint.Align.LEFT
+                        textAlign = Paint.Align.LEFT
                     }
                     drawText("Vertical", width - 60.dp.toPx(), textOffsetY, paint)
                 }
@@ -739,11 +757,3 @@ private fun AccelerationPlot() {
         }
     }
 }
-
-@ExperimentalHazeMaterialsApi
-@RequiresApi(Build.VERSION_CODES.Q)
-@Preview
-@Composable
-fun HeadTrackingScreenPreview() {
-    HeadTrackingScreen()
-}

android/app/src/main/java/me/kavishdevar/librepods/presentation/screens/HearingAidAdjustmentsScreen.kt

@@ -16,7 +16,7 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-package me.kavishdevar.librepods.screens
+package me.kavishdevar.librepods.presentation.screens
 
 import android.annotation.SuppressLint
 import android.util.Log
@@ -31,9 +31,10 @@ import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.verticalScroll
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.DisposableEffect
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.MutableState
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableFloatStateOf
 import androidx.compose.runtime.mutableIntStateOf
 import androidx.compose.runtime.mutableStateOf
@@ -41,7 +42,6 @@ import androidx.compose.runtime.remember
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
-import androidx.navigation.NavController
 import com.kyant.backdrop.backdrops.layerBackdrop
 import com.kyant.backdrop.backdrops.rememberLayerBackdrop
 import dev.chrisbanes.haze.HazeState
@@ -50,15 +50,16 @@ import dev.chrisbanes.haze.materials.ExperimentalHazeMaterialsApi
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.delay
 import me.kavishdevar.librepods.R
-import me.kavishdevar.librepods.composables.StyledScaffold
-import me.kavishdevar.librepods.composables.StyledSlider
-import me.kavishdevar.librepods.composables.StyledToggle
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
+import me.kavishdevar.librepods.presentation.components.StyledSlider
+import me.kavishdevar.librepods.presentation.components.StyledToggle
 import me.kavishdevar.librepods.services.ServiceManager
-import me.kavishdevar.librepods.utils.AACPManager
-import me.kavishdevar.librepods.utils.ATTHandles
-import me.kavishdevar.librepods.utils.HearingAidSettings
-import me.kavishdevar.librepods.utils.parseHearingAidSettingsResponse
-import me.kavishdevar.librepods.utils.sendHearingAidSettings
+import me.kavishdevar.librepods.bluetooth.AACPManager
+import me.kavishdevar.librepods.bluetooth.ATTHandles
+import me.kavishdevar.librepods.data.HearingAidSettings
+import me.kavishdevar.librepods.data.parseHearingAidSettingsResponse
+import me.kavishdevar.librepods.data.sendHearingAidSettings
+import me.kavishdevar.librepods.presentation.viewmodel.AirPodsViewModel
 import java.io.IOException
 import kotlin.io.encoding.ExperimentalEncodingApi
 
@@ -69,13 +70,14 @@ private const val TAG = "HearingAidAdjustments"
 @ExperimentalHazeMaterialsApi
 @OptIn(ExperimentalMaterial3Api::class, ExperimentalEncodingApi::class)
 @Composable
-fun HearingAidAdjustmentsScreen(@Suppress("unused") navController: NavController) {
+fun HearingAidAdjustmentsScreen(viewModel: AirPodsViewModel) {
     isSystemInDarkTheme()
     val verticalScrollState = rememberScrollState()
     val hazeState = remember { HazeState() }
     val attManager = ServiceManager.getService()?.attManager ?: throw IllegalStateException("ATTManager not available")
 
-    val aacpManager = remember { ServiceManager.getService()?.aacpManager }
+    val state by viewModel.uiState.collectAsState()
+
     val backdrop = rememberLayerBackdrop()
     StyledScaffold(
         title = stringResource(R.string.adjustments)
@@ -125,25 +127,6 @@ fun HearingAidAdjustmentsScreen(@Suppress("unused") navController: NavController
                 )
             }
 
-            val hearingAidEnabled = remember {
-                val aidStatus = aacpManager?.controlCommandStatusList?.find { it.identifier == AACPManager.Companion.ControlCommandIdentifiers.HEARING_AID }
-                val assistStatus = aacpManager?.controlCommandStatusList?.find { it.identifier == AACPManager.Companion.ControlCommandIdentifiers.HEARING_ASSIST_CONFIG }
-                mutableStateOf((aidStatus?.value?.getOrNull(1) == 0x01.toByte()) && (assistStatus?.value?.getOrNull(0) == 0x01.toByte()))
-            }
-
-            val hearingAidListener = remember {
-                object : AACPManager.ControlCommandListener {
-                    override fun onControlCommandReceived(controlCommand: AACPManager.ControlCommand) {
-                        if (controlCommand.identifier == AACPManager.Companion.ControlCommandIdentifiers.HEARING_AID.value ||
-                            controlCommand.identifier == AACPManager.Companion.ControlCommandIdentifiers.HEARING_ASSIST_CONFIG.value) {
-                            val aidStatus = aacpManager?.controlCommandStatusList?.find { it.identifier == AACPManager.Companion.ControlCommandIdentifiers.HEARING_AID }
-                            val assistStatus = aacpManager?.controlCommandStatusList?.find { it.identifier == AACPManager.Companion.ControlCommandIdentifiers.HEARING_ASSIST_CONFIG }
-                            hearingAidEnabled.value = (aidStatus?.value?.getOrNull(1) == 0x01.toByte()) && (assistStatus?.value?.getOrNull(0) == 0x01.toByte())
-                        }
-                    }
-                }
-            }
-
             val hearingAidATTListener = remember {
                 object : (ByteArray) -> Unit {
                     override fun invoke(value: ByteArray) {
@@ -165,19 +148,6 @@ fun HearingAidAdjustmentsScreen(@Suppress("unused") navController: NavController
                 }
             }
 
-            LaunchedEffect(Unit) {
-                aacpManager?.registerControlCommandListener(AACPManager.Companion.ControlCommandIdentifiers.HEARING_AID, hearingAidListener)
-                aacpManager?.registerControlCommandListener(AACPManager.Companion.ControlCommandIdentifiers.HEARING_ASSIST_CONFIG, hearingAidListener)
-            }
-
-            DisposableEffect(Unit) {
-                onDispose {
-                    aacpManager?.unregisterControlCommandListener(AACPManager.Companion.ControlCommandIdentifiers.HEARING_AID, hearingAidListener)
-                    aacpManager?.unregisterControlCommandListener(AACPManager.Companion.ControlCommandIdentifiers.HEARING_ASSIST_CONFIG, hearingAidListener)
-                    attManager.unregisterListener(ATTHandles.HEARING_AID, hearingAidATTListener)
-                }
-            }
-
             LaunchedEffect(amplificationSliderValue.floatValue, balanceSliderValue.floatValue, toneSliderValue.floatValue, conversationBoostEnabled.value, ambientNoiseReductionSliderValue.floatValue, ownVoiceAmplification.floatValue, initialLoadComplete.value, initialReadSucceeded.value) {
                 if (!initialLoadComplete.value) {
                     Log.d(TAG, "Initial device load not complete - skipping send")
@@ -256,7 +226,7 @@ fun HearingAidAdjustmentsScreen(@Suppress("unused") navController: NavController
             StyledSlider(
                 label = stringResource(R.string.amplification),
                 valueRange = -1f..1f,
-                mutableFloatState = amplificationSliderValue,
+                value = amplificationSliderValue.floatValue,
                 onValueChange = {
                     amplificationSliderValue.floatValue = it
                 },
@@ -268,14 +238,15 @@ fun HearingAidAdjustmentsScreen(@Suppress("unused") navController: NavController
 
             StyledToggle(
                 label = stringResource(R.string.swipe_to_control_amplification),
-                controlCommandIdentifier = AACPManager.Companion.ControlCommandIdentifiers.HPS_GAIN_SWIPE,
+                checked = state.controlStates[AACPManager.Companion.ControlCommandIdentifiers.HPS_GAIN_SWIPE]?.getOrNull(0) == 0x01.toByte(),
+                onCheckedChange = { viewModel.setControlCommandBoolean(AACPManager.Companion.ControlCommandIdentifiers.HPS_GAIN_SWIPE, it) },
                 description = stringResource(R.string.swipe_amplification_description)
             )
 
             StyledSlider(
                 label = stringResource(R.string.balance),
                 valueRange = -1f..1f,
-                mutableFloatState = balanceSliderValue,
+                value = balanceSliderValue.floatValue,
                 onValueChange = {
                     balanceSliderValue.floatValue = it
                 },
@@ -288,7 +259,7 @@ fun HearingAidAdjustmentsScreen(@Suppress("unused") navController: NavController
             StyledSlider(
                 label = stringResource(R.string.tone),
                 valueRange = -1f..1f,
-                mutableFloatState = toneSliderValue,
+                value = toneSliderValue.floatValue,
                 onValueChange = {
                     toneSliderValue.floatValue = it
                 },
@@ -300,7 +271,7 @@ fun HearingAidAdjustmentsScreen(@Suppress("unused") navController: NavController
             StyledSlider(
                 label = stringResource(R.string.ambient_noise_reduction),
                 valueRange = 0f..1f,
-                mutableFloatState = ambientNoiseReductionSliderValue,
+                value = ambientNoiseReductionSliderValue.floatValue,
                 onValueChange = {
                     ambientNoiseReductionSliderValue.floatValue = it
                 },
@@ -311,7 +282,8 @@ fun HearingAidAdjustmentsScreen(@Suppress("unused") navController: NavController
 
             StyledToggle(
                 label = stringResource(R.string.conversation_boost),
-                checkedState = conversationBoostEnabled,
+                checked = conversationBoostEnabled.value,
+                onCheckedChange = { conversationBoostEnabled.value = it },
                 independent = true,
                 description = stringResource(R.string.conversation_boost_description)
             )

android/app/src/main/java/me/kavishdevar/librepods/presentation/screens/HearingAidScreen.kt

@@ -16,7 +16,7 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-package me.kavishdevar.librepods.screens
+package me.kavishdevar.librepods.presentation.screens
 
 import android.annotation.SuppressLint
 import android.util.Log
@@ -37,8 +37,9 @@ import androidx.compose.material3.HorizontalDivider
 import androidx.compose.material3.SnackbarHostState
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.DisposableEffect
 import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.ui.Modifier
@@ -61,15 +62,14 @@ import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import me.kavishdevar.librepods.R
-import me.kavishdevar.librepods.composables.ConfirmationDialog
-import me.kavishdevar.librepods.composables.NavigationButton
-import me.kavishdevar.librepods.composables.StyledScaffold
-import me.kavishdevar.librepods.composables.StyledToggle
-import me.kavishdevar.librepods.services.ServiceManager
-import me.kavishdevar.librepods.utils.AACPManager
-import me.kavishdevar.librepods.utils.ATTHandles
-import me.kavishdevar.librepods.utils.parseTransparencySettingsResponse
-import me.kavishdevar.librepods.utils.sendTransparencySettings
+import me.kavishdevar.librepods.bluetooth.AACPManager
+import me.kavishdevar.librepods.data.parseTransparencySettingsResponse
+import me.kavishdevar.librepods.data.sendTransparencySettings
+import me.kavishdevar.librepods.presentation.components.ConfirmationDialog
+import me.kavishdevar.librepods.presentation.components.NavigationButton
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
+import me.kavishdevar.librepods.presentation.components.StyledToggle
+import me.kavishdevar.librepods.presentation.viewmodel.AirPodsViewModel
 import kotlin.io.encoding.ExperimentalEncodingApi
 
 private const val TAG = "AccessibilitySettings"
@@ -78,23 +78,22 @@ private const val TAG = "AccessibilitySettings"
 @ExperimentalHazeMaterialsApi
 @OptIn(ExperimentalMaterial3Api::class, ExperimentalEncodingApi::class)
 @Composable
-fun HearingAidScreen(navController: NavController) {
+fun HearingAidScreen(viewModel: AirPodsViewModel, navController: NavController) {
     val isDarkTheme = isSystemInDarkTheme()
     val textColor = if (isDarkTheme) Color.White else Color.Black
     val verticalScrollState  = rememberScrollState()
     val snackbarHostState = remember { SnackbarHostState() }
-    val attManager = ServiceManager.getService()?.attManager ?: return
-
-    val aacpManager = remember { ServiceManager.getService()?.aacpManager }
 
     val showDialog = remember { mutableStateOf(false) }
     val backdrop = rememberLayerBackdrop()
     val initialLoad = remember { mutableStateOf(true) }
 
+    val state by viewModel.uiState.collectAsState()
+
     val hearingAidEnabled = remember {
-        val aidStatus = aacpManager?.controlCommandStatusList?.find { it.identifier == AACPManager.Companion.ControlCommandIdentifiers.HEARING_AID }
-        val assistStatus = aacpManager?.controlCommandStatusList?.find { it.identifier == AACPManager.Companion.ControlCommandIdentifiers.HEARING_ASSIST_CONFIG }
-        mutableStateOf((aidStatus?.value?.getOrNull(1) == 0x01.toByte()) && (assistStatus?.value?.getOrNull(0) == 0x01.toByte()))
+        val aidStatus = state.controlStates[AACPManager.Companion.ControlCommandIdentifiers.HEARING_AID]
+        val assistStatus = state.controlStates[AACPManager.Companion.ControlCommandIdentifiers.HEARING_ASSIST_CONFIG]
+        mutableStateOf((aidStatus?.getOrNull(1) == 0x01.toByte()) && (assistStatus?.getOrNull(0) == 0x01.toByte()))
     }
 
     val hazeStateS = remember { mutableStateOf(HazeState()) } // dont question this. i could possibly use something other than initializing it with an empty state and then replacing it with the the one provided by the scaffold
@@ -102,7 +101,7 @@ fun HearingAidScreen(navController: NavController) {
     StyledScaffold(
         title = stringResource(R.string.hearing_aid),
         snackbarHostState = snackbarHostState,
-    ) { spacerHeight, hazeState ->
+    ) { topPadding, hazeState, bottomPadding ->
         Column(
             modifier = Modifier
                 .layerBackdrop(backdrop)
@@ -113,43 +112,18 @@ fun HearingAidScreen(navController: NavController) {
             verticalArrangement = Arrangement.spacedBy(8.dp)
         ) {
             hazeStateS.value = hazeState
-            Spacer(modifier = Modifier.height(spacerHeight))
-
-            val hearingAidListener = remember {
-                object : AACPManager.ControlCommandListener {
-                    override fun onControlCommandReceived(controlCommand: AACPManager.ControlCommand) {
-                        if (controlCommand.identifier == AACPManager.Companion.ControlCommandIdentifiers.HEARING_AID.value ||
-                            controlCommand.identifier == AACPManager.Companion.ControlCommandIdentifiers.HEARING_ASSIST_CONFIG.value) {
-                            val aidStatus = aacpManager?.controlCommandStatusList?.find { it.identifier == AACPManager.Companion.ControlCommandIdentifiers.HEARING_AID }
-                            val assistStatus = aacpManager?.controlCommandStatusList?.find { it.identifier == AACPManager.Companion.ControlCommandIdentifiers.HEARING_ASSIST_CONFIG }
-                            hearingAidEnabled.value = (aidStatus?.value?.getOrNull(1) == 0x01.toByte()) && (assistStatus?.value?.getOrNull(0) == 0x01.toByte())
-                        }
-                    }
-                }
-            }
+            Spacer(modifier = Modifier.height(topPadding))
 
 //            val mediaAssistEnabled = remember { mutableStateOf(false) }
 //            val adjustMediaEnabled = remember { mutableStateOf(false) }
 //            val adjustPhoneEnabled = remember { mutableStateOf(false) }
 
-            LaunchedEffect(Unit) {
-                aacpManager?.registerControlCommandListener(AACPManager.Companion.ControlCommandIdentifiers.HEARING_AID, hearingAidListener)
-                aacpManager?.registerControlCommandListener(AACPManager.Companion.ControlCommandIdentifiers.HEARING_ASSIST_CONFIG, hearingAidListener)
-            }
-
-            DisposableEffect(Unit) {
-                onDispose {
-                    aacpManager?.unregisterControlCommandListener(AACPManager.Companion.ControlCommandIdentifiers.HEARING_AID, hearingAidListener)
-                    aacpManager?.unregisterControlCommandListener(AACPManager.Companion.ControlCommandIdentifiers.HEARING_ASSIST_CONFIG, hearingAidListener)
-                }
-            }
-
             LaunchedEffect(hearingAidEnabled.value) {
                 if (hearingAidEnabled.value && !initialLoad.value) {
                     showDialog.value = true
                 } else if (!hearingAidEnabled.value && !initialLoad.value) {
-                    aacpManager?.sendControlCommand(AACPManager.Companion.ControlCommandIdentifiers.HEARING_AID.value, byteArrayOf(0x01, 0x02))
-                    aacpManager?.sendControlCommand(AACPManager.Companion.ControlCommandIdentifiers.HEARING_ASSIST_CONFIG.value, 0x02.toByte())
+                    viewModel.setControlCommandValue(AACPManager.Companion.ControlCommandIdentifiers.HEARING_AID, byteArrayOf(0x01, 0x02))
+                    viewModel.setControlCommandByte(AACPManager.Companion.ControlCommandIdentifiers.HEARING_ASSIST_CONFIG, 0x02.toByte())
                     hearingAidEnabled.value = false
                 }
                 initialLoad.value = false
@@ -186,7 +160,8 @@ fun HearingAidScreen(navController: NavController) {
             ) {
                 StyledToggle(
                     label = stringResource(R.string.hearing_aid),
-                    checkedState = hearingAidEnabled,
+                    checked = hearingAidEnabled.value,
+                    onCheckedChange = { hearingAidEnabled.value = it },
                     independent = false
                 )
                 HorizontalDivider(
@@ -198,7 +173,7 @@ fun HearingAidScreen(navController: NavController) {
                 NavigationButton(
                     to = "hearing_aid_adjustments",
                     name = stringResource(R.string.adjustments),
-                    navController,
+                    navController = navController,
                     independent = false
                 )
             }
@@ -217,7 +192,7 @@ fun HearingAidScreen(navController: NavController) {
             NavigationButton(
                 to = "update_hearing_test",
                 name = stringResource(R.string.update_hearing_test),
-                navController,
+                navController = navController,
                 independent = true
             )
 
@@ -258,9 +233,9 @@ fun HearingAidScreen(navController: NavController) {
             //         independent = false
             //     )
             // }
+            Spacer(modifier = Modifier.height(bottomPadding))
         }
     }
-
     ConfirmationDialog(
         showDialog = showDialog,
         title = "Enable Hearing Aid",
@@ -269,26 +244,33 @@ fun HearingAidScreen(navController: NavController) {
         dismissText = "Cancel",
         onConfirm = {
             showDialog.value = false
-            val enrolled = aacpManager?.controlCommandStatusList?.find { it.identifier == AACPManager.Companion.ControlCommandIdentifiers.HEARING_AID }?.value?.getOrNull(0) == 0x01.toByte()
+            val enrolled = state.controlStates[AACPManager.Companion.ControlCommandIdentifiers.HEARING_AID]?.getOrNull(0) == 0x01.toByte()
             if (!enrolled) {
-                aacpManager?.sendControlCommand(AACPManager.Companion.ControlCommandIdentifiers.HEARING_AID.value, byteArrayOf(0x01, 0x01))
+                viewModel.setControlCommandValue(AACPManager.Companion.ControlCommandIdentifiers.HEARING_AID, byteArrayOf(0x01, 0x01))
             } else {
-                aacpManager.sendControlCommand(AACPManager.Companion.ControlCommandIdentifiers.HEARING_AID.value, byteArrayOf(0x01, 0x01))
+                viewModel.setControlCommandValue(AACPManager.Companion.ControlCommandIdentifiers.HEARING_AID, byteArrayOf(0x01, 0x01))
             }
-            aacpManager?.sendControlCommand(AACPManager.Companion.ControlCommandIdentifiers.HEARING_ASSIST_CONFIG.value, 0x01.toByte())
+            viewModel.setControlCommandByte(AACPManager.Companion.ControlCommandIdentifiers.HEARING_ASSIST_CONFIG, 0x01.toByte())
             hearingAidEnabled.value = true
             CoroutineScope(Dispatchers.IO).launch {
                 try {
-                    val data = attManager.read(ATTHandles.TRANSPARENCY)
-                    val parsed = parseTransparencySettingsResponse(data)
+                    if (state.hearingAidData.isEmpty()) {
+                        Log.w(TAG, "read failed")
+                        return@launch
+                    }
+                    val parsed = parseTransparencySettingsResponse(state.hearingAidData)
                     val disabledSettings = parsed.copy(enabled = false)
-                    sendTransparencySettings(attManager, disabledSettings)
+                    sendTransparencySettings(viewModel::setATTCharacteristicValue, disabledSettings)
                 } catch (e: Exception) {
                     Log.e(TAG, "Error disabling transparency: ${e.message}")
                 }
             }
         },
-        hazeState = hazeStateS.value,
-        // backdrop = backdrop
+        onDismiss = {
+            hearingAidEnabled.value = false
+            showDialog.value = false
+        },
+//        hazeState = hazeStateS.value,
+         backdrop = backdrop
     )
 }

android/app/src/main/java/me/kavishdevar/librepods/presentation/screens/HearingProtectionScreen.kt

@@ -0,0 +1,120 @@
+/*
+    LibrePods - AirPods liberated from Apple’s ecosystem
+    Copyright (C) 2025 LibrePods contributors
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+package me.kavishdevar.librepods.presentation.screens
+
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.Font
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import androidx.navigation.NavController
+import com.kyant.backdrop.backdrops.layerBackdrop
+import com.kyant.backdrop.backdrops.rememberLayerBackdrop
+import me.kavishdevar.librepods.R
+import me.kavishdevar.librepods.bluetooth.AACPManager
+import me.kavishdevar.librepods.bluetooth.ATTHandles
+import me.kavishdevar.librepods.presentation.components.StyledButton
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
+import me.kavishdevar.librepods.presentation.components.StyledToggle
+import me.kavishdevar.librepods.presentation.viewmodel.AirPodsViewModel
+
+@Composable
+fun HearingProtectionScreen(viewModel: AirPodsViewModel, navController: NavController) {
+    val backdrop = rememberLayerBackdrop()
+    val state by viewModel.uiState.collectAsState()
+    StyledScaffold(
+        title = stringResource(R.string.hearing_protection),
+    ) { spacerHeight ->
+        Column(
+            modifier = Modifier
+                .fillMaxSize()
+                .layerBackdrop(backdrop)
+                .padding(horizontal = 16.dp)
+        ) {
+            Spacer(modifier = Modifier.height(spacerHeight))
+            if (!state.isPremium) {
+                StyledButton(
+                    onClick = {
+                        navController.navigate("purchase_screen")
+                    },
+                    backdrop = rememberLayerBackdrop(),
+                    modifier = Modifier.fillMaxWidth(),
+                    maxScale = 0.05f,
+                    surfaceColor = if (isSystemInDarkTheme()) Color(0xFF916100) else Color(0xFFE59900)
+                ) {
+                    Text(
+                        stringResource(R.string.unlock_advanced_features),
+                        style = TextStyle(
+                            fontSize = 16.sp,
+                            fontWeight = FontWeight.Medium,
+                            fontFamily = FontFamily(Font(R.font.sf_pro)),
+                            color = Color.White
+                        ),
+                    )
+                }
+            }
+            if (state.vendorIdHook) {
+                StyledToggle(
+                    title = stringResource(R.string.environmental_noise),
+                    label = stringResource(R.string.loud_sound_reduction),
+                    description = stringResource(R.string.loud_sound_reduction_description),
+                    checked = state.loudSoundReductionEnabled,
+                    onCheckedChange = {
+                        viewModel.setATTCharacteristicValue(
+                            ATTHandles.LOUD_SOUND_REDUCTION,
+                            byteArrayOf(if (it) 1.toByte() else 0.toByte())
+                        )
+                    },
+                    enabled = state.isPremium
+                )
+
+                Spacer(modifier = Modifier.height(12.dp))
+            }
+            StyledToggle(
+                title = stringResource(R.string.workspace_use),
+                label = stringResource(R.string.ppe),
+                description = stringResource(R.string.workspace_use_description),
+                checked = state.controlStates[AACPManager.Companion.ControlCommandIdentifiers.PPE_TOGGLE_CONFIG]?.getOrNull(
+                    0
+                )?.toInt() == 1,
+                onCheckedChange = {
+                    viewModel.setControlCommandBoolean(
+                        AACPManager.Companion.ControlCommandIdentifiers.PPE_TOGGLE_CONFIG, it
+                    )
+                },
+                enabled = state.isPremium
+            )
+        }
+    }
+}

android/app/src/main/java/me/kavishdevar/librepods/presentation/screens/OpenSourceLicensesScreen.kt

@@ -16,7 +16,7 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-package me.kavishdevar.librepods.screens
+package me.kavishdevar.librepods.presentation.screens
 
 import android.annotation.SuppressLint
 import androidx.compose.foundation.isSystemInDarkTheme
@@ -28,12 +28,9 @@ import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.DisposableEffect
-import androidx.compose.runtime.LaunchedEffect
-import androidx.compose.runtime.mutableFloatStateOf
-import androidx.compose.runtime.remember
 import androidx.compose.runtime.getValue
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
 import androidx.navigation.NavController
@@ -42,17 +39,9 @@ import com.kyant.backdrop.backdrops.rememberLayerBackdrop
 import com.mikepenz.aboutlibraries.ui.compose.m3.LibrariesContainer
 import com.mikepenz.aboutlibraries.ui.compose.produceLibraries
 import dev.chrisbanes.haze.materials.ExperimentalHazeMaterialsApi
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
-import kotlinx.coroutines.delay
-import kotlinx.coroutines.launch
 import me.kavishdevar.librepods.R
-import me.kavishdevar.librepods.composables.StyledIconButton
-import me.kavishdevar.librepods.composables.StyledScaffold
-import me.kavishdevar.librepods.composables.StyledSlider
-import me.kavishdevar.librepods.services.ServiceManager
-import me.kavishdevar.librepods.utils.AACPManager
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
 import kotlin.io.encoding.ExperimentalEncodingApi
 
 private var debounceJob: Job? = null
@@ -76,7 +65,7 @@ fun OpenSourceLicensesScreen(navController: NavController) {
             verticalArrangement = Arrangement.spacedBy(16.dp)
         ) {
             Spacer(modifier = Modifier.height(spacerHeight))
-            val context = androidx.compose.ui.platform.LocalContext.current
+            val context = LocalContext.current
             val libraries by produceLibraries {
                 context.resources.openRawResource(R.raw.aboutlibraries)
                     .bufferedReader()
@@ -90,4 +79,4 @@ fun OpenSourceLicensesScreen(navController: NavController) {
             )
         }
     }
-}
+}

android/app/src/main/java/me/kavishdevar/librepods/presentation/screens/PressAndHoldSettingsScreen.kt

@@ -0,0 +1,211 @@
+/*
+    LibrePods - AirPods liberated from Apple’s ecosystem
+    Copyright (C) 2025 LibrePods contributors
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+@file:OptIn(ExperimentalStdlibApi::class, ExperimentalEncodingApi::class)
+
+package me.kavishdevar.librepods.presentation.screens
+
+import android.util.Log
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.Font
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import androidx.navigation.NavController
+import com.kyant.backdrop.backdrops.layerBackdrop
+import com.kyant.backdrop.backdrops.rememberLayerBackdrop
+import dev.chrisbanes.haze.materials.ExperimentalHazeMaterialsApi
+import me.kavishdevar.librepods.R
+import me.kavishdevar.librepods.bluetooth.AACPManager
+import me.kavishdevar.librepods.data.StemAction
+import me.kavishdevar.librepods.presentation.components.SelectItem
+import me.kavishdevar.librepods.presentation.components.StyledButton
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
+import me.kavishdevar.librepods.presentation.components.StyledSelectList
+import me.kavishdevar.librepods.presentation.viewmodel.AirPodsViewModel
+import kotlin.experimental.and
+import kotlin.io.encoding.ExperimentalEncodingApi
+
+@ExperimentalHazeMaterialsApi
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun LongPress(viewModel: AirPodsViewModel, name: String, navController: NavController) {
+    val isDarkTheme = isSystemInDarkTheme()
+    val textColor = if (isDarkTheme) Color.White else Color.Black
+
+    val state by viewModel.uiState.collectAsState()
+
+    val modesByte = state.controlStates[AACPManager.Companion.ControlCommandIdentifiers.LISTENING_MODE_CONFIGS]?.get(0) ?: 0
+
+    Log.d("PressAndHoldSettingsScreen", "Current modes state: ${modesByte.toString(2)}")
+    Log.d("PressAndHoldSettingsScreen", "Off mode: ${(modesByte and 0x01) != 0.toByte()}")
+    Log.d("PressAndHoldSettingsScreen", "Transparency mode: ${(modesByte and 0x04) != 0.toByte()}")
+    Log.d("PressAndHoldSettingsScreen", "Noise Cancellation mode: ${(modesByte and 0x02) != 0.toByte()}")
+    Log.d("PressAndHoldSettingsScreen", "Adaptive mode: ${(modesByte and 0x08) != 0.toByte()}")
+
+    val longPressAction = if (name.lowercase() == "left") state.leftAction else state.rightAction
+    val backdrop = rememberLayerBackdrop()
+    StyledScaffold(
+        title = name
+    ) { spacerHeight ->
+        Column (
+            modifier = Modifier
+              .layerBackdrop(backdrop)
+              .fillMaxSize()
+              .padding(top = 8.dp)
+              .padding(horizontal = 16.dp)
+        ) {
+            Spacer(modifier = Modifier.height(spacerHeight))
+            val actionItems = listOf(
+                SelectItem(
+                    name = stringResource(R.string.noise_control),
+                    selected = longPressAction == StemAction.CYCLE_NOISE_CONTROL_MODES,
+                    onClick = {
+                        viewModel.setLongPressAction(name, StemAction.CYCLE_NOISE_CONTROL_MODES)
+                    }
+                ),
+                SelectItem(
+                    name = stringResource(R.string.digital_assistant),
+                    selected = longPressAction == StemAction.DIGITAL_ASSISTANT,
+                    onClick = {
+                        viewModel.setLongPressAction(name, StemAction.DIGITAL_ASSISTANT)
+                    },
+                    enabled = state.isPremium
+                )
+            )
+            StyledSelectList(items = actionItems)
+
+            if (!state.isPremium) {
+                Spacer(modifier = Modifier.height(24.dp))
+                StyledButton(
+                    onClick = {
+                        navController.navigate("purchase_screen")
+                    },
+                    backdrop = rememberLayerBackdrop(),
+                    modifier = Modifier.fillMaxWidth(),
+                    maxScale = 0.05f,
+                    surfaceColor = if (isSystemInDarkTheme()) Color(0xFF916100) else Color(0xFFE59900)
+                ) {
+                    Text(
+                        stringResource(R.string.unlock_advanced_features),
+                        style = TextStyle(
+                            fontSize = 16.sp,
+                            fontWeight = FontWeight.Medium,
+                            fontFamily = FontFamily(Font(R.font.sf_pro)),
+                            color = Color.White
+                        ),
+                    )
+                }
+                Spacer(modifier = Modifier.height(8.dp))
+            }
+
+            if (longPressAction == StemAction.CYCLE_NOISE_CONTROL_MODES) {
+                Spacer(modifier = Modifier.height(32.dp))
+                Text(
+                    text = stringResource(R.string.noise_control),
+                    style = TextStyle(
+                        fontSize = 14.sp,
+                        fontWeight = FontWeight.Bold,
+                        color = textColor.copy(alpha = 0.6f),
+                        fontFamily = FontFamily(Font(R.font.sf_pro))
+                    ),
+                    fontFamily = FontFamily(Font(R.font.sf_pro)),
+                    modifier = Modifier
+                        .padding(horizontal = 18.dp)
+                )
+
+                Spacer(modifier = Modifier.height(8.dp))
+
+                val currentByte = state.controlStates[AACPManager.Companion.ControlCommandIdentifiers.LISTENING_MODE_CONFIGS]?.get(0)?.toInt() ?: 0
+
+                val listeningModeItems = mutableListOf<SelectItem>()
+                if (state.offListeningMode) {
+                    listeningModeItems.add(
+                        SelectItem(
+                            name = stringResource(R.string.off),
+                            description = stringResource(R.string.listening_mode_off_description),
+                            iconRes = R.drawable.noise_cancellation,
+                            selected = (currentByte and 0x01) != 0,
+                            onClick = {
+                                viewModel.toggleListeningMode(0x01)
+                            }
+                        )
+                    )
+                }
+                listeningModeItems.addAll(listOf(
+                    SelectItem(
+                        name = stringResource(R.string.transparency),
+                        description = stringResource(R.string.listening_mode_transparency_description),
+                        iconRes = R.drawable.transparency,
+                        selected = (currentByte and 0x04) != 0,
+                        onClick = {
+                            viewModel.toggleListeningMode(0x04)
+                        }
+                    ),
+                    SelectItem(
+                        name = stringResource(R.string.adaptive),
+                        description = stringResource(R.string.listening_mode_adaptive_description),
+                        iconRes = R.drawable.adaptive,
+                        selected = (currentByte and 0x08) != 0,
+                        onClick = {
+                            viewModel.toggleListeningMode(0x08)
+                        }
+                    ),
+                    SelectItem(
+                        name = stringResource(R.string.noise_cancellation),
+                        description = stringResource(R.string.listening_mode_noise_cancellation_description),
+                        iconRes = R.drawable.noise_cancellation,
+                        selected = (currentByte and 0x02) != 0,
+                        onClick = {
+                            viewModel.toggleListeningMode(0x02)
+                        }
+                    )
+                ))
+                StyledSelectList(items = listeningModeItems)
+                Spacer(modifier = Modifier.height(8.dp))
+                Text(
+                    text = stringResource(R.string.press_and_hold_noise_control_description),
+                    style = TextStyle(
+                        fontSize = 12.sp,
+                        fontWeight = FontWeight.Light,
+                        color = textColor.copy(alpha = 0.6f),
+                        fontFamily = FontFamily(Font(R.font.sf_pro))
+                    ),
+                    modifier = Modifier
+                        .padding(horizontal = 18.dp)
+                )
+            }
+        }
+    }
+}

android/app/src/main/java/me/kavishdevar/librepods/presentation/screens/PurchaseScreen.kt

@@ -0,0 +1,528 @@
+/*
+    LibrePods - AirPods liberated from Apple’s ecosystem
+    Copyright (C) 2025 LibrePods contributors
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+package me.kavishdevar.librepods.presentation.screens
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material3.HorizontalDivider
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.Font
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import androidx.lifecycle.viewmodel.compose.viewModel
+import androidx.navigation.NavController
+import com.kyant.backdrop.backdrops.layerBackdrop
+import com.kyant.backdrop.backdrops.rememberLayerBackdrop
+import dev.chrisbanes.haze.hazeSource
+import me.kavishdevar.librepods.BuildConfig
+import me.kavishdevar.librepods.R
+import me.kavishdevar.librepods.presentation.components.StyledButton
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
+import me.kavishdevar.librepods.presentation.viewmodel.PurchaseViewModel
+
+@Composable
+fun PurchaseScreen(
+    viewModel: PurchaseViewModel = viewModel(),
+    navController: NavController
+) {
+    val context = LocalContext.current
+    val scrollState = rememberScrollState()
+    val state by viewModel.uiState.collectAsState()
+
+    val backdrop = rememberLayerBackdrop()
+
+    StyledScaffold(
+        title = stringResource(R.string.unlock_advanced_features)
+    ) { topPadding, hazeState, bottomPadding ->
+        Column(
+            modifier = Modifier
+                .fillMaxSize()
+                .layerBackdrop(backdrop)
+                .hazeSource(state = hazeState)
+                .verticalScroll(scrollState)
+                .padding(horizontal = 16.dp)
+        ) {
+            Spacer(modifier = Modifier.height(topPadding))
+
+            val isDarkTheme = isSystemInDarkTheme()
+            val backgroundColor = if (isDarkTheme) Color(0xFF000000) else Color(0xFFF2F2F7)
+            val cardBackgroundColor = if (isDarkTheme) Color(0xFF1C1C1E) else Color(0xFFFFFFFF)
+            val textColor = if (isDarkTheme) Color.White else Color.Black
+            LaunchedEffect(state.isPremium) {
+                if (state.isPremium) {
+                    navController.popBackStack()
+                }
+            }
+            if (!state.isPremium) {
+                Box(
+                    modifier = Modifier
+                        .background(backgroundColor)
+                        .padding(horizontal = 16.dp, vertical = 4.dp)
+                ) {
+                    Text(
+                        text = stringResource(R.string.free_features),
+                        style = TextStyle(
+                            fontSize = 14.sp,
+                            fontWeight = FontWeight.Bold,
+                            color = textColor.copy(alpha = 0.6f),
+                            fontFamily = FontFamily(Font(R.font.sf_pro))
+                        )
+                    )
+                }
+                Column(
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .background(cardBackgroundColor, RoundedCornerShape(28.dp))
+                        .padding(horizontal = 8.dp, vertical = 16.dp),
+                    verticalArrangement = Arrangement.spacedBy(8.dp)
+                ) {
+                    Column(
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .padding(horizontal = 12.dp, vertical = 4.dp),
+                        verticalArrangement = Arrangement.spacedBy(2.dp)
+                    ) {
+                        Text(
+                            text = stringResource(R.string.ear_detection),
+                            style = TextStyle(
+                                fontSize = 16.sp,
+                                fontWeight = FontWeight.Normal,
+                                fontFamily = FontFamily(Font(R.font.sf_pro)),
+                                color = textColor
+                            )
+                        )
+                        Text(
+                            text = stringResource(R.string.ear_detection_description),
+                            style = TextStyle(
+                                fontSize = 12.sp,
+                                color = textColor.copy(0.6f),
+                                fontFamily = FontFamily(Font(R.font.sf_pro)),
+                            )
+                        )
+                    }
+                    HorizontalDivider(
+                        thickness = 1.dp,
+                        color = Color(0x40888888),
+                        modifier = Modifier
+                            .padding(horizontal = 12.dp)
+                    )
+                    Column(
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .padding(horizontal = 12.dp, vertical = 4.dp),
+                        verticalArrangement = Arrangement.spacedBy(2.dp)
+                    ) {
+                        Text(
+                            text = stringResource(R.string.battery),
+                            style = TextStyle(
+                                fontSize = 16.sp,
+                                fontWeight = FontWeight.Normal,
+                                fontFamily = FontFamily(Font(R.font.sf_pro)),
+                                color = textColor
+                            )
+                        )
+                        Text(
+                            text = stringResource(R.string.battery_description),
+                            style = TextStyle(
+                                fontSize = 12.sp,
+                                color = textColor.copy(0.6f),
+                                fontFamily = FontFamily(Font(R.font.sf_pro)),
+                            )
+                        )
+                    }
+                    HorizontalDivider(
+                        thickness = 1.dp,
+                        color = Color(0x40888888),
+                        modifier = Modifier
+                            .padding(horizontal = 12.dp)
+                    )
+                    Column(
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .padding(horizontal = 12.dp, vertical = 4.dp),
+                        verticalArrangement = Arrangement.spacedBy(2.dp)
+                    ) {
+                        Text(
+                            text = stringResource(R.string.noise_control),
+                            style = TextStyle(
+                                fontSize = 16.sp,
+                                fontWeight = FontWeight.Normal,
+                                fontFamily = FontFamily(Font(R.font.sf_pro)),
+                                color = textColor
+                            )
+                        )
+                        Text(
+                            text = stringResource(R.string.noise_control_description),
+                            style = TextStyle(
+                                fontSize = 12.sp,
+                                color = textColor.copy(0.6f),
+                                fontFamily = FontFamily(Font(R.font.sf_pro)),
+                            )
+                        )
+                    }
+                    if (BuildConfig.FLAVOR == "xposed") {
+                        HorizontalDivider(
+                            thickness = 1.dp,
+                            color = Color(0x40888888),
+                            modifier = Modifier
+                                .padding(horizontal = 12.dp)
+                        )
+                        Column(
+                            modifier = Modifier
+                                .fillMaxWidth()
+                                .padding(horizontal = 12.dp, vertical = 4.dp),
+                            verticalArrangement = Arrangement.spacedBy(2.dp)
+                        ) {
+                            Text(
+                                text = stringResource(R.string.hearing_aid) + " (" + stringResource(
+                                    R.string.requires_xposed
+                                ) + ")",
+                                style = TextStyle(
+                                    fontSize = 16.sp,
+                                    fontWeight = FontWeight.Normal,
+                                    fontFamily = FontFamily(Font(R.font.sf_pro)),
+                                    color = textColor
+                                )
+                            )
+                            Text(
+                                text = stringResource(R.string.hearing_aid_description).split("\n\n")[0],
+                                style = TextStyle(
+                                    fontSize = 12.sp,
+                                    color = textColor.copy(0.6f),
+                                    fontFamily = FontFamily(Font(R.font.sf_pro)),
+                                )
+                            )
+                        }
+                    }
+                }
+
+                Spacer(modifier = Modifier.height(24.dp))
+                Box(
+                    modifier = Modifier
+                        .background(backgroundColor)
+                        .padding(horizontal = 16.dp, vertical = 4.dp)
+                ) {
+                    Text(
+                        text = stringResource(R.string.advanced_features),
+                        style = TextStyle(
+                            fontSize = 14.sp,
+                            fontWeight = FontWeight.Bold,
+                            color = textColor.copy(alpha = 0.6f),
+                            fontFamily = FontFamily(Font(R.font.sf_pro))
+                        )
+                    )
+                }
+                Column(
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .background(cardBackgroundColor, RoundedCornerShape(28.dp))
+                        .padding(horizontal = 8.dp, vertical = 16.dp),
+                    verticalArrangement = Arrangement.spacedBy(8.dp)
+                ) {
+                    Column(
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .padding(horizontal = 12.dp, vertical = 4.dp),
+                        verticalArrangement = Arrangement.spacedBy(2.dp)
+                    ) {
+                        Text(
+                            text = stringResource(R.string.conversational_awareness),
+                            style = TextStyle(
+                                fontSize = 16.sp,
+                                fontWeight = FontWeight.Normal,
+                                fontFamily = FontFamily(Font(R.font.sf_pro)),
+                                color = textColor
+                            )
+                        )
+                        Text(
+                            text = stringResource(R.string.conversational_awareness_description),
+                            style = TextStyle(
+                                fontSize = 12.sp,
+                                color = textColor.copy(0.6f),
+                                fontFamily = FontFamily(Font(R.font.sf_pro)),
+                            )
+                        )
+                    }
+                    HorizontalDivider(
+                        thickness = 1.dp,
+                        color = Color(0x40888888),
+                        modifier = Modifier
+                            .padding(horizontal = 12.dp)
+                    )
+                    Column(
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .padding(horizontal = 12.dp, vertical = 4.dp),
+                        verticalArrangement = Arrangement.spacedBy(2.dp)
+                    ) {
+                        Text(
+                            text = stringResource(R.string.digital_assistant_on_long_press),
+                            style = TextStyle(
+                                fontSize = 16.sp,
+                                fontWeight = FontWeight.Normal,
+                                fontFamily = FontFamily(Font(R.font.sf_pro)),
+                                color = textColor
+                            )
+                        )
+                        Text(
+                            text = stringResource(R.string.digital_assistant_on_long_press_description),
+                            style = TextStyle(
+                                fontSize = 12.sp,
+                                color = textColor.copy(0.6f),
+                                fontFamily = FontFamily(Font(R.font.sf_pro)),
+                            )
+                        )
+                    }
+                    HorizontalDivider(
+                        thickness = 1.dp,
+                        color = Color(0x40888888),
+                        modifier = Modifier
+                            .padding(horizontal = 12.dp)
+                    )
+                    Column(
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .padding(horizontal = 12.dp, vertical = 4.dp),
+                        verticalArrangement = Arrangement.spacedBy(2.dp)
+                    ) {
+                        Text(
+                            text = stringResource(R.string.head_gestures),
+                            style = TextStyle(
+                                fontSize = 16.sp,
+                                fontWeight = FontWeight.Normal,
+                                fontFamily = FontFamily(Font(R.font.sf_pro)),
+                                color = textColor
+                            )
+                        )
+                        Text(
+                            text = stringResource(R.string.head_gestures_details),
+                            style = TextStyle(
+                                fontSize = 12.sp,
+                                color = textColor.copy(0.6f),
+                                fontFamily = FontFamily(Font(R.font.sf_pro)),
+                            )
+                        )
+                    }
+                    HorizontalDivider(
+                        thickness = 1.dp,
+                        color = Color(0x40888888),
+                        modifier = Modifier
+                            .padding(horizontal = 12.dp)
+                    )
+                    Column(
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .padding(horizontal = 12.dp, vertical = 4.dp),
+                        verticalArrangement = Arrangement.spacedBy(2.dp)
+                    ) {
+                        Text(
+                            text = stringResource(R.string.advanced_device_settings),
+                            style = TextStyle(
+                                fontSize = 16.sp,
+                                fontWeight = FontWeight.Normal,
+                                fontFamily = FontFamily(Font(R.font.sf_pro)),
+                                color = textColor
+                            )
+                        )
+                        Text(
+                            text = stringResource(R.string.advanced_device_settings_description),
+                            style = TextStyle(
+                                fontSize = 12.sp,
+                                color = textColor.copy(0.6f),
+                                fontFamily = FontFamily(Font(R.font.sf_pro)),
+                            )
+                        )
+                    }
+                    HorizontalDivider(
+                        thickness = 1.dp,
+                        color = Color(0x40888888),
+                        modifier = Modifier
+                            .padding(horizontal = 12.dp)
+                    )
+                    Column(
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .padding(horizontal = 12.dp, vertical = 4.dp),
+                        verticalArrangement = Arrangement.spacedBy(2.dp)
+                    ) {
+                        Text(
+                            text = stringResource(R.string.automatic_connection),
+                            style = TextStyle(
+                                fontSize = 16.sp,
+                                fontWeight = FontWeight.Normal,
+                                fontFamily = FontFamily(Font(R.font.sf_pro)),
+                                color = textColor
+                            )
+                        )
+                        Text(
+                            text = stringResource(R.string.automatic_connection_description),
+                            style = TextStyle(
+                                fontSize = 12.sp,
+                                color = textColor.copy(0.6f),
+                                fontFamily = FontFamily(Font(R.font.sf_pro)),
+                            )
+                        )
+                    }
+                    HorizontalDivider(
+                        thickness = 1.dp,
+                        color = Color(0x40888888),
+                        modifier = Modifier
+                            .padding(horizontal = 12.dp)
+                    )
+                    Column(
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .padding(horizontal = 12.dp, vertical = 4.dp),
+                        verticalArrangement = Arrangement.spacedBy(2.dp)
+                    ) {
+                        Text(
+                            text = stringResource(R.string.customizations),
+                            style = TextStyle(
+                                fontSize = 16.sp,
+                                fontWeight = FontWeight.Normal,
+                                fontFamily = FontFamily(Font(R.font.sf_pro)),
+                                color = textColor
+                            )
+                        )
+                        Text(
+                            text = stringResource(R.string.customizations_description),
+                            style = TextStyle(
+                                fontSize = 12.sp,
+                                color = textColor.copy(0.6f),
+                                fontFamily = FontFamily(Font(R.font.sf_pro)),
+                            )
+                        )
+                    }
+                    HorizontalDivider(
+                        thickness = 1.dp,
+                        color = Color(0x40888888),
+                        modifier = Modifier
+                            .padding(horizontal = 12.dp)
+                    )
+                    Column(
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .padding(horizontal = 12.dp, vertical = 4.dp),
+                        verticalArrangement = Arrangement.spacedBy(2.dp)
+                    ) {
+                        Text(
+                            text = stringResource(R.string.support_the_development),
+                            style = TextStyle(
+                                fontSize = 16.sp,
+                                fontWeight = FontWeight.Normal,
+                                fontFamily = FontFamily(Font(R.font.sf_pro)),
+                                color = textColor
+                            )
+                        )
+                        Text(
+                            text = stringResource(R.string.support_development_description),
+                            style = TextStyle(
+                                fontSize = 12.sp,
+                                color = textColor.copy(0.6f),
+                                fontFamily = FontFamily(Font(R.font.sf_pro)),
+                            )
+                        )
+                    }
+                }
+                Spacer(modifier = Modifier.height(8.dp))
+                Text(
+                    text = stringResource(R.string.feature_availability_disclaimer),
+                    modifier = Modifier.fillMaxWidth(),
+                    style = TextStyle(
+                        fontSize = 14.sp,
+                        fontWeight = FontWeight.Light,
+                        fontFamily = FontFamily(Font(R.font.sf_pro)),
+                        color = textColor.copy(alpha = 0.6f),
+                        textAlign = TextAlign.Center
+                    ),
+                )
+
+
+                Spacer(modifier = Modifier.height(24.dp))
+
+                StyledButton(
+                    onClick = {
+                        viewModel.purchase(context)
+                    },
+                    backdrop = rememberLayerBackdrop(),
+                    modifier = Modifier.fillMaxWidth(),
+                    maxScale = 0.05f,
+                    surfaceColor = if (isSystemInDarkTheme()) Color(0xFF0091FF)
+                    else  Color(0xFF0088FF) // if (isSystemInDarkTheme()) Color(0xFF916100) else Color(0xFFE59900)
+                ) {
+                    Text(
+                        stringResource(R.string.buy_price, state.price),
+                        style = TextStyle(
+                            fontSize = 16.sp,
+                            fontWeight = FontWeight.Medium,
+                            fontFamily = FontFamily(Font(R.font.sf_pro)),
+                            color = Color.White
+                        ),
+                    )
+                }
+
+                Spacer(modifier = Modifier.height(8.dp))
+
+                StyledButton(
+                    onClick = {
+                        viewModel.restorePurchases()
+                    },
+                    backdrop = rememberLayerBackdrop(),
+                    modifier = Modifier.fillMaxWidth(),
+                    maxScale = 0.05f,
+                    isInteractive = false
+                ) {
+                    Text(
+                        stringResource(R.string.restore_purchases),
+                        style = TextStyle(
+                            fontSize = 16.sp,
+                            fontWeight = FontWeight.Medium,
+                            fontFamily = FontFamily(Font(R.font.sf_pro)),
+                            color = textColor
+                        ),
+                    )
+                }
+            }
+            Spacer(modifier = Modifier.height(bottomPadding))
+        }
+    }
+}

android/app/src/main/java/me/kavishdevar/librepods/presentation/screens/RenameScreen.kt

@@ -0,0 +1,84 @@
+/*
+    LibrePods - AirPods liberated from Apple’s ecosystem
+    Copyright (C) 2025 LibrePods contributors
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+@file:OptIn(ExperimentalEncodingApi::class)
+
+package me.kavishdevar.librepods.presentation.screens
+
+import android.content.Context
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.text.input.rememberTextFieldState
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.focus.FocusRequester
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.platform.LocalSoftwareKeyboardController
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.unit.dp
+import androidx.core.content.edit
+import dev.chrisbanes.haze.materials.ExperimentalHazeMaterialsApi
+import me.kavishdevar.librepods.R
+import me.kavishdevar.librepods.presentation.components.StyledInputField
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
+import me.kavishdevar.librepods.presentation.viewmodel.AirPodsViewModel
+import kotlin.io.encoding.ExperimentalEncodingApi
+
+
+@OptIn(ExperimentalMaterial3Api::class, ExperimentalHazeMaterialsApi::class)
+@Composable
+fun RenameScreen(viewModel: AirPodsViewModel) {
+    val sharedPreferences = LocalContext.current.getSharedPreferences("settings", Context.MODE_PRIVATE)
+    val focusRequester = remember { FocusRequester() }
+    val keyboardController = LocalSoftwareKeyboardController.current
+
+    LaunchedEffect(Unit) {
+        focusRequester.requestFocus()
+        keyboardController?.show()
+    }
+
+    StyledScaffold(
+        title = stringResource(R.string.name),
+    ) { spacerHeight ->
+        Column(
+            modifier = Modifier
+                .fillMaxSize()
+                .padding(horizontal = 16.dp)
+        ) {
+            Spacer(modifier = Modifier.height(spacerHeight))
+
+            val textFieldState = rememberTextFieldState()
+            textFieldState.edit { sharedPreferences.getString("name", "") ?: "" }
+            LaunchedEffect(textFieldState.text) {
+                sharedPreferences.edit {putString("name", textFieldState.text as String?)}
+                viewModel.setName(textFieldState.text.toString())
+            }
+
+            StyledInputField(
+                textFieldState,
+                focusRequester
+            )
+        }
+    }
+}

android/app/src/main/java/me/kavishdevar/librepods/presentation/screens/TransparencySettingsScreen.kt

@@ -16,8 +16,9 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-package me.kavishdevar.librepods.screens
+package me.kavishdevar.librepods.presentation.screens
 
+// import me.kavishdevar.librepods.utils.RadareOffsetFinder
 import android.annotation.SuppressLint
 import android.util.Log
 import androidx.compose.foundation.background
@@ -41,8 +42,9 @@ import androidx.compose.material3.Slider
 import androidx.compose.material3.SliderDefaults
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.DisposableEffect
 import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableFloatStateOf
 import androidx.compose.runtime.mutableIntStateOf
 import androidx.compose.runtime.mutableStateOf
@@ -58,23 +60,20 @@ import androidx.compose.ui.text.font.FontFamily
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
-import androidx.navigation.NavController
 import com.kyant.backdrop.backdrops.layerBackdrop
 import com.kyant.backdrop.backdrops.rememberLayerBackdrop
 import dev.chrisbanes.haze.hazeSource
 import dev.chrisbanes.haze.materials.ExperimentalHazeMaterialsApi
 import kotlinx.coroutines.delay
+import me.kavishdevar.librepods.BuildConfig
 import me.kavishdevar.librepods.R
-import me.kavishdevar.librepods.composables.StyledIconButton
-import me.kavishdevar.librepods.composables.StyledScaffold
-import me.kavishdevar.librepods.composables.StyledSlider
-import me.kavishdevar.librepods.composables.StyledToggle
-import me.kavishdevar.librepods.services.ServiceManager
-import me.kavishdevar.librepods.utils.ATTHandles
-import me.kavishdevar.librepods.utils.RadareOffsetFinder
-import me.kavishdevar.librepods.utils.TransparencySettings
-import me.kavishdevar.librepods.utils.parseTransparencySettingsResponse
-import me.kavishdevar.librepods.utils.sendTransparencySettings
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
+import me.kavishdevar.librepods.presentation.components.StyledSlider
+import me.kavishdevar.librepods.presentation.components.StyledToggle
+import me.kavishdevar.librepods.data.TransparencySettings
+import me.kavishdevar.librepods.data.parseTransparencySettingsResponse
+import me.kavishdevar.librepods.data.sendTransparencySettings
+import me.kavishdevar.librepods.presentation.viewmodel.AirPodsViewModel
 import java.io.IOException
 import kotlin.io.encoding.ExperimentalEncodingApi
 
@@ -84,14 +83,10 @@ private const val TAG = "TransparencySettings"
 @ExperimentalHazeMaterialsApi
 @OptIn(ExperimentalMaterial3Api::class, ExperimentalEncodingApi::class)
 @Composable
-fun TransparencySettingsScreen(navController: NavController) {
+fun TransparencySettingsScreen(viewModel: AirPodsViewModel) {
     val isDarkTheme = isSystemInDarkTheme()
     val textColor = if (isDarkTheme) Color.White else Color.Black
     val verticalScrollState = rememberScrollState()
-    val attManager = ServiceManager.getService()?.attManager ?: return
-    val aacpManager = remember { ServiceManager.getService()?.aacpManager }
-    val isSdpOffsetAvailable =
-        remember { mutableStateOf(RadareOffsetFinder.isSdpOffsetAvailable()) }
 
     val trackColor = if (isDarkTheme) Color(0xFFB3B3B3) else Color(0xFF929491)
     val activeTrackColor = if (isDarkTheme) Color(0xFF007AFF) else Color(0xFF3C6DF5)
@@ -99,9 +94,12 @@ fun TransparencySettingsScreen(navController: NavController) {
 
     val backdrop = rememberLayerBackdrop()
 
+
+    val state by viewModel.uiState.collectAsState()
+
     StyledScaffold(
         title = stringResource(R.string.customize_transparency_mode)
-    ){ spacerHeight, hazeState ->
+    ){ topPadding, hazeState, bottomPadding ->
         Column(
             modifier = Modifier
                 .hazeSource(hazeState)
@@ -111,7 +109,7 @@ fun TransparencySettingsScreen(navController: NavController) {
                 .padding(horizontal = 16.dp),
             verticalArrangement = Arrangement.spacedBy(16.dp)
         ) {
-            Spacer(modifier = Modifier.height(spacerHeight))
+            Spacer(modifier = Modifier.height(topPadding))
             val backgroundColor = if (isDarkTheme) Color(0xFF1C1C1E) else Color(0xFFFFFFFF)
 
             val enabled = remember { mutableStateOf(false) }
@@ -148,23 +146,6 @@ fun TransparencySettingsScreen(navController: NavController) {
                 )
             }
 
-            val transparencyListener = remember {
-                object : (ByteArray) -> Unit {
-                    override fun invoke(value: ByteArray) {
-                        val parsed = parseTransparencySettingsResponse(value)
-                        enabled.value = parsed.enabled
-                        amplificationSliderValue.floatValue = parsed.netAmplification
-                        balanceSliderValue.floatValue = parsed.balance
-                        toneSliderValue.floatValue = parsed.leftTone
-                        ambientNoiseReductionSliderValue.floatValue =
-                            parsed.leftAmbientNoiseReduction
-                        conversationBoostEnabled.value = parsed.leftConversationBoost
-                        eq.value = parsed.leftEQ.copyOf()
-                        Log.d(TAG, "Updated transparency settings from notification")
-                    }
-                }
-            }
-
             LaunchedEffect(
                 enabled.value,
                 amplificationSliderValue.floatValue,
@@ -205,35 +186,22 @@ fun TransparencySettingsScreen(navController: NavController) {
                     balance = balanceSliderValue.floatValue
                 )
                 Log.d("TransparencySettings", "Updated settings: ${transparencySettings.value}")
-                sendTransparencySettings(attManager, transparencySettings.value)
-            }
-
-            DisposableEffect(Unit) {
-                onDispose {
-                    attManager.unregisterListener(ATTHandles.TRANSPARENCY, transparencyListener)
-                }
+                sendTransparencySettings(viewModel::setATTCharacteristicValue, transparencySettings.value)
             }
 
             LaunchedEffect(Unit) {
                 Log.d(TAG, "Connecting to ATT...")
                 try {
-                    attManager.enableNotifications(ATTHandles.TRANSPARENCY)
-                    attManager.registerListener(ATTHandles.TRANSPARENCY, transparencyListener)
-
                     // If we have an AACP manager, prefer its EQ data to populate EQ controls first
                     try {
-                        if (aacpManager != null) {
-                            Log.d(TAG, "Found AACPManager, reading cached EQ data")
-                            val aacpEQ = aacpManager.eqData
-                            if (aacpEQ.isNotEmpty()) {
-                                eq.value = aacpEQ.copyOf()
-                                phoneMediaEQ.value = aacpEQ.copyOf()
-                                Log.d(TAG, "Populated EQ from AACPManager: ${aacpEQ.toList()}")
-                            } else {
-                                Log.d(TAG, "AACPManager EQ data empty")
-                            }
+                        Log.d(TAG, "Found AACPManager, reading cached EQ data")
+                        val aacpEQ = state.eqData
+                        if (aacpEQ.isNotEmpty()) {
+                            eq.value = aacpEQ.copyOf()
+                            phoneMediaEQ.value = aacpEQ.copyOf()
+                            Log.d(TAG, "Populated EQ from AACPManager: ${aacpEQ.toList()}")
                         } else {
-                            Log.d(TAG, "No AACPManager available")
+                            Log.d(TAG, "AACPManager EQ data empty")
                         }
                     } catch (e: Exception) {
                         Log.w(TAG, "Error reading EQ from AACPManager: ${e.message}")
@@ -243,7 +211,7 @@ fun TransparencySettingsScreen(navController: NavController) {
                     for (attempt in 1..3) {
                         initialReadAttempts.intValue = attempt
                         try {
-                            val data = attManager.read(ATTHandles.TRANSPARENCY)
+                            val data = state.transparencyData
                             parsedSettings = parseTransparencySettingsResponse(data = data)
                             Log.d(TAG, "Parsed settings on attempt $attempt")
                         } catch (e: Exception) {
@@ -276,19 +244,19 @@ fun TransparencySettingsScreen(navController: NavController) {
                 }
             }
 
-            // Only show transparency mode section if SDP offset is available
-            if (isSdpOffsetAvailable.value) {
+            if (state.vendorIdHook) {
                 StyledToggle(
                     label = stringResource(R.string.transparency_mode),
-                    checkedState = enabled,
+                    checked = enabled.value,
                     independent = true,
-                    description = stringResource(R.string.customize_transparency_mode_description)
+                    description = stringResource(R.string.customize_transparency_mode_description),
+                    onCheckedChange = { enabled.value = it }
                 )
                 Spacer(modifier = Modifier.height(4.dp))
                 StyledSlider(
                     label = stringResource(R.string.amplification),
                     valueRange = -1f..1f,
-                    mutableFloatState = amplificationSliderValue,
+                    value = amplificationSliderValue.floatValue,
                     onValueChange = {
                         amplificationSliderValue.floatValue = it
                     },
@@ -300,7 +268,7 @@ fun TransparencySettingsScreen(navController: NavController) {
                 StyledSlider(
                     label = stringResource(R.string.balance),
                     valueRange = -1f..1f,
-                    mutableFloatState = balanceSliderValue,
+                    value = balanceSliderValue.floatValue,
                     onValueChange = {
                         balanceSliderValue.floatValue = it
                     },
@@ -313,7 +281,7 @@ fun TransparencySettingsScreen(navController: NavController) {
                 StyledSlider(
                     label = stringResource(R.string.tone),
                     valueRange = -1f..1f,
-                    mutableFloatState = toneSliderValue,
+                    value = toneSliderValue.floatValue,
                     onValueChange = {
                         toneSliderValue.floatValue = it
                     },
@@ -325,7 +293,7 @@ fun TransparencySettingsScreen(navController: NavController) {
                 StyledSlider(
                     label = stringResource(R.string.ambient_noise_reduction),
                     valueRange = 0f..1f,
-                    mutableFloatState = ambientNoiseReductionSliderValue,
+                    value = ambientNoiseReductionSliderValue.floatValue,
                     onValueChange = {
                         ambientNoiseReductionSliderValue.floatValue = it
                     },
@@ -336,14 +304,12 @@ fun TransparencySettingsScreen(navController: NavController) {
 
                 StyledToggle(
                     label = stringResource(R.string.conversation_boost),
-                    checkedState = conversationBoostEnabled,
+                    checked = conversationBoostEnabled.value,
                     independent = true,
-                    description = stringResource(R.string.conversation_boost_description)
+                    description = stringResource(R.string.conversation_boost_description),
+                    onCheckedChange = { conversationBoostEnabled.value = it }
                 )
-            }
 
-            // Only show transparency mode EQ section if SDP offset is available
-            if (isSdpOffsetAvailable.value) {
                 Text(
                     text = stringResource(R.string.equalizer),
                     style = TextStyle(
@@ -443,6 +409,8 @@ fun TransparencySettingsScreen(navController: NavController) {
 
                 Spacer(modifier = Modifier.height(16.dp))
             }
+
+            Spacer(modifier = Modifier.height(bottomPadding))
         }
     }
 }

android/app/src/main/java/me/kavishdevar/librepods/presentation/screens/TroubleshootingScreen.kt

@@ -16,7 +16,7 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-package me.kavishdevar.librepods.screens
+package me.kavishdevar.librepods.presentation.screens
 
 import android.content.Intent
 import android.widget.Toast
@@ -94,7 +94,7 @@ import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
 import me.kavishdevar.librepods.R
-import me.kavishdevar.librepods.composables.StyledScaffold
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
 import me.kavishdevar.librepods.utils.LogCollector
 import java.io.File
 import java.text.SimpleDateFormat
@@ -216,7 +216,7 @@ fun TroubleshootingScreen(navController: NavController) {
     ) {
         StyledScaffold(
             title = stringResource(R.string.troubleshooting)
-        ){ spacerHeight, hazeState ->
+        ){ topPadding, hazeState, bottomPadding ->
             Column(
                 modifier = Modifier
                     .fillMaxSize()
@@ -225,7 +225,7 @@ fun TroubleshootingScreen(navController: NavController) {
                     .verticalScroll(scrollState)
                     .padding(horizontal = 16.dp)
             ) {
-                Spacer(modifier = Modifier.height(spacerHeight))
+                Spacer(modifier = Modifier.height(topPadding))
 
                 Text(
                     text = stringResource(R.string.saved_logs),

android/app/src/main/java/me/kavishdevar/librepods/presentation/screens/UpdateHearingTestScreen.kt

@@ -16,9 +16,8 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-package me.kavishdevar.librepods.screens
+package me.kavishdevar.librepods.presentation.screens
 
-import android.annotation.SuppressLint
 import android.util.Log
 import androidx.compose.foundation.isSystemInDarkTheme
 import androidx.compose.foundation.layout.Arrangement
@@ -33,7 +32,6 @@ import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.text.KeyboardOptions
 import androidx.compose.foundation.verticalScroll
-import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.OutlinedTextField
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
@@ -55,31 +53,25 @@ import androidx.compose.ui.text.input.KeyboardType
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
-import androidx.navigation.NavController
 import com.kyant.backdrop.backdrops.layerBackdrop
 import com.kyant.backdrop.backdrops.rememberLayerBackdrop
 import dev.chrisbanes.haze.hazeSource
-import dev.chrisbanes.haze.materials.ExperimentalHazeMaterialsApi
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.delay
 import me.kavishdevar.librepods.R
-import me.kavishdevar.librepods.composables.StyledScaffold
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
 import me.kavishdevar.librepods.services.ServiceManager
-import me.kavishdevar.librepods.utils.ATTHandles
-import me.kavishdevar.librepods.utils.HearingAidSettings
-import me.kavishdevar.librepods.utils.parseHearingAidSettingsResponse
-import me.kavishdevar.librepods.utils.sendHearingAidSettings
+import me.kavishdevar.librepods.bluetooth.ATTHandles
+import me.kavishdevar.librepods.data.HearingAidSettings
+import me.kavishdevar.librepods.data.parseHearingAidSettingsResponse
+import me.kavishdevar.librepods.data.sendHearingAidSettings
 import java.io.IOException
-import kotlin.io.encoding.ExperimentalEncodingApi
 
 private var debounceJob: MutableState<Job?> = mutableStateOf(null)
 private const val TAG = "HearingAidAdjustments"
 
-@SuppressLint("DefaultLocale")
-@ExperimentalHazeMaterialsApi
-@OptIn(ExperimentalMaterial3Api::class, ExperimentalEncodingApi::class)
 @Composable
-fun UpdateHearingTestScreen(@Suppress("unused") navController: NavController) {
+fun UpdateHearingTestScreen() {
     val verticalScrollState = rememberScrollState()
     val attManager = ServiceManager.getService()?.attManager
     if (attManager == null) {
@@ -96,7 +88,7 @@ fun UpdateHearingTestScreen(@Suppress("unused") navController: NavController) {
     val backdrop = rememberLayerBackdrop()
     StyledScaffold(
         title = stringResource(R.string.hearing_test)
-    ) { spacerHeight, hazeState ->
+    ) { topPadding, hazeState, bottomPadding ->
         Column(
             modifier = Modifier
                 .hazeSource(hazeState)
@@ -108,7 +100,7 @@ fun UpdateHearingTestScreen(@Suppress("unused") navController: NavController) {
         ) {
             val textColor = if (isSystemInDarkTheme()) Color.White else Color.Black
 
-            Spacer(modifier = Modifier.height(spacerHeight))
+            Spacer(modifier = Modifier.height(topPadding))
 
             Text(
                 text = stringResource(R.string.hearing_test_value_instruction),
@@ -138,17 +130,17 @@ fun UpdateHearingTestScreen(@Suppress("unused") navController: NavController) {
                     HearingAidSettings(
                         leftEQ = leftEQ.value,
                         rightEQ = rightEQ.value,
-                        leftAmplification = leftAmplification.value,
-                        rightAmplification = rightAmplification.value,
-                        leftTone = tone.value,
-                        rightTone = tone.value,
+                        leftAmplification = leftAmplification.floatValue,
+                        rightAmplification = rightAmplification.floatValue,
+                        leftTone = tone.floatValue,
+                        rightTone = tone.floatValue,
                         leftConversationBoost = conversationBoostEnabled.value,
                         rightConversationBoost = conversationBoostEnabled.value,
-                        leftAmbientNoiseReduction = ambientNoiseReduction.value,
-                        rightAmbientNoiseReduction = ambientNoiseReduction.value,
-                        netAmplification = leftAmplification.value + rightAmplification.value / 2,
-                        balance = 0.5f + (rightAmplification.value - leftAmplification.value) / 2,
-                        ownVoiceAmplification = ownVoiceAmplification.value
+                        leftAmbientNoiseReduction = ambientNoiseReduction.floatValue,
+                        rightAmbientNoiseReduction = ambientNoiseReduction.floatValue,
+                        netAmplification = leftAmplification.floatValue + rightAmplification.floatValue / 2,
+                        balance = 0.5f + (rightAmplification.floatValue - leftAmplification.floatValue) / 2,
+                        ownVoiceAmplification = ownVoiceAmplification.floatValue
                     )
                 )
             }
@@ -161,11 +153,11 @@ fun UpdateHearingTestScreen(@Suppress("unused") navController: NavController) {
                             leftEQ.value = parsed.leftEQ.copyOf()
                             rightEQ.value = parsed.rightEQ.copyOf()
                             conversationBoostEnabled.value = parsed.leftConversationBoost
-                            tone.value = parsed.leftTone
-                            ambientNoiseReduction.value = parsed.leftAmbientNoiseReduction
-                            ownVoiceAmplification.value = parsed.ownVoiceAmplification
-                            leftAmplification.value = parsed.leftAmplification
-                            rightAmplification.value = parsed.rightAmplification
+                            tone.floatValue = parsed.leftTone
+                            ambientNoiseReduction.floatValue = parsed.leftAmbientNoiseReduction
+                            ownVoiceAmplification.floatValue = parsed.ownVoiceAmplification
+                            leftAmplification.floatValue = parsed.leftAmplification
+                            rightAmplification.floatValue = parsed.rightAmplification
                             Log.d(TAG, "Updated hearing aid settings from notification")
                         } else {
                             Log.w(TAG, "Failed to parse hearing aid settings from notification")
@@ -181,31 +173,45 @@ fun UpdateHearingTestScreen(@Suppress("unused") navController: NavController) {
                 }
             }
 
-            LaunchedEffect(leftEQ.value, rightEQ.value, conversationBoostEnabled.value, initialLoadComplete.value, initialReadSucceeded.value, leftAmplification.value, rightAmplification.value, tone.value, ambientNoiseReduction.value, ownVoiceAmplification.value) {
+            LaunchedEffect(
+                leftEQ.value,
+                rightEQ.value,
+                conversationBoostEnabled.value,
+                initialLoadComplete.value,
+                initialReadSucceeded.value,
+                leftAmplification.floatValue,
+                rightAmplification.floatValue,
+                tone.floatValue,
+                ambientNoiseReduction.floatValue,
+                ownVoiceAmplification.floatValue
+            ) {
                 if (!initialLoadComplete.value) {
                     Log.d(TAG, "Initial device load not complete - skipping send")
                     return@LaunchedEffect
                 }
 
                 if (!initialReadSucceeded.value) {
-                    Log.d(TAG, "Initial device read not successful yet - skipping send until read succeeds")
+                    Log.d(
+                        TAG,
+                        "Initial device read not successful yet - skipping send until read succeeds"
+                    )
                     return@LaunchedEffect
                 }
 
                 hearingAidSettings.value = HearingAidSettings(
                     leftEQ = leftEQ.value,
                     rightEQ = rightEQ.value,
-                    leftAmplification = leftAmplification.value,
-                    rightAmplification = rightAmplification.value,
-                    leftTone = tone.value,
-                    rightTone = tone.value,
+                    leftAmplification = leftAmplification.floatValue,
+                    rightAmplification = rightAmplification.floatValue,
+                    leftTone = tone.floatValue,
+                    rightTone = tone.floatValue,
                     leftConversationBoost = conversationBoostEnabled.value,
                     rightConversationBoost = conversationBoostEnabled.value,
-                    leftAmbientNoiseReduction = ambientNoiseReduction.value,
-                    rightAmbientNoiseReduction = ambientNoiseReduction.value,
-                    netAmplification = leftAmplification.value + rightAmplification.value / 2,
-                    balance = 0.5f + (rightAmplification.value - leftAmplification.value) / 2,
-                    ownVoiceAmplification = ownVoiceAmplification.value
+                    leftAmbientNoiseReduction = ambientNoiseReduction.floatValue,
+                    rightAmbientNoiseReduction = ambientNoiseReduction.floatValue,
+                    netAmplification = leftAmplification.floatValue + rightAmplification.floatValue / 2,
+                    balance = 0.5f + (rightAmplification.floatValue - leftAmplification.floatValue) / 2,
+                    ownVoiceAmplification = ownVoiceAmplification.floatValue
                 )
                 Log.d(TAG, "Updated settings: ${hearingAidSettings.value}")
                 sendHearingAidSettings(attManager, hearingAidSettings.value, debounceJob)
@@ -240,14 +246,17 @@ fun UpdateHearingTestScreen(@Suppress("unused") navController: NavController) {
                         leftEQ.value = parsedSettings.leftEQ.copyOf()
                         rightEQ.value = parsedSettings.rightEQ.copyOf()
                         conversationBoostEnabled.value = parsedSettings.leftConversationBoost
-                        tone.value = parsedSettings.leftTone
-                        ambientNoiseReduction.value = parsedSettings.leftAmbientNoiseReduction
-                        ownVoiceAmplification.value = parsedSettings.ownVoiceAmplification
-                        leftAmplification.value = parsedSettings.leftAmplification
-                        rightAmplification.value = parsedSettings.rightAmplification
+                        tone.floatValue = parsedSettings.leftTone
+                        ambientNoiseReduction.floatValue = parsedSettings.leftAmbientNoiseReduction
+                        ownVoiceAmplification.floatValue = parsedSettings.ownVoiceAmplification
+                        leftAmplification.floatValue = parsedSettings.leftAmplification
+                        rightAmplification.floatValue = parsedSettings.rightAmplification
                         initialReadSucceeded.value = true
                     } else {
-                        Log.d(TAG, "Failed to read/parse initial hearing aid settings after ${initialReadAttempts.intValue} attempts")
+                        Log.d(
+                            TAG,
+                            "Failed to read/parse initial hearing aid settings after ${initialReadAttempts.intValue} attempts"
+                        )
                     }
                 } catch (e: IOException) {
                     e.printStackTrace()
@@ -256,7 +265,8 @@ fun UpdateHearingTestScreen(@Suppress("unused") navController: NavController) {
                 }
             }
 
-            val frequencies = listOf("250Hz", "500Hz", "1kHz", "2kHz", "3kHz", "4kHz", "6kHz", "8kHz")
+            val frequencies =
+                listOf("250Hz", "500Hz", "1kHz", "2kHz", "3kHz", "4kHz", "6kHz", "8kHz")
 
             Row(
                 modifier = Modifier.fillMaxWidth(),
@@ -342,6 +352,7 @@ fun UpdateHearingTestScreen(@Suppress("unused") navController: NavController) {
                     )
                 }
             }
+            Spacer(modifier = Modifier.height(bottomPadding))
         }
     }
 }

android/app/src/main/java/me/kavishdevar/librepods/presentation/screens/VersionInfoScreen.kt

@@ -16,25 +16,25 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-package me.kavishdevar.librepods.screens
+package me.kavishdevar.librepods.presentation.screens
 
 import androidx.compose.foundation.background
-import android.annotation.SuppressLint
 import androidx.compose.foundation.isSystemInDarkTheme
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.Row
-import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.shape.RoundedCornerShape
-import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.HorizontalDivider
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
 import androidx.compose.ui.graphics.Color
@@ -45,36 +45,23 @@ import androidx.compose.ui.text.font.FontFamily
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
-import androidx.navigation.NavController
 import com.kyant.backdrop.backdrops.layerBackdrop
 import com.kyant.backdrop.backdrops.rememberLayerBackdrop
-import dev.chrisbanes.haze.materials.ExperimentalHazeMaterialsApi
-import kotlinx.coroutines.Job
 import me.kavishdevar.librepods.R
-import me.kavishdevar.librepods.composables.StyledScaffold
-import me.kavishdevar.librepods.services.ServiceManager
-import kotlin.io.encoding.ExperimentalEncodingApi
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
+import me.kavishdevar.librepods.presentation.viewmodel.AirPodsViewModel
 
-private var debounceJob: Job? = null
-
-@SuppressLint("DefaultLocale")
-@ExperimentalHazeMaterialsApi
-@OptIn(ExperimentalMaterial3Api::class, ExperimentalEncodingApi::class)
 @Composable
-fun VersionScreen(navController: NavController) {
+fun VersionScreen(viewModel: AirPodsViewModel) {
+    val state by viewModel.uiState.collectAsState()
     val isDarkTheme = isSystemInDarkTheme()
-    val service = ServiceManager.getService()
-    if (service == null) return
-    val airpodsInstance = service.airpodsInstance
-    if (airpodsInstance == null) return
-
     val backgroundColor = if (isDarkTheme) Color(0xFF1C1C1E) else Color(0xFFFFFFFF)
     val textColor = if (isDarkTheme) Color.White else Color.Black
 
     val backdrop = rememberLayerBackdrop()
 
     StyledScaffold(
-        title = stringResource(R.string.customize_adaptive_audio)
+        title = stringResource(R.string.version)
     ) { spacerHeight ->
         Column(
             modifier = Modifier
@@ -93,7 +80,8 @@ fun VersionScreen(navController: NavController) {
                     style = TextStyle(
                         fontSize = 14.sp,
                         fontWeight = FontWeight.Bold,
-                        color = textColor.copy(alpha = 0.6f)
+                        color = textColor.copy(alpha = 0.6f),
+                        fontFamily = FontFamily(Font(R.font.sf_pro))
                     )
                 )
             }
@@ -120,7 +108,7 @@ fun VersionScreen(navController: NavController) {
                         )
                     )
                     Text(
-                        text = airpodsInstance.version1 ?: "N/A",
+                        text = state.version1,
                         style = TextStyle(
                             fontSize = 16.sp,
                             color = textColor.copy(0.8f),
@@ -149,7 +137,7 @@ fun VersionScreen(navController: NavController) {
                         )
                     )
                     Text(
-                        text = airpodsInstance.version2 ?: "N/A",
+                        text = state.version2,
                         style = TextStyle(
                             fontSize = 16.sp,
                             color = textColor.copy(0.8f),
@@ -178,7 +166,7 @@ fun VersionScreen(navController: NavController) {
                         )
                     )
                     Text(
-                        text = airpodsInstance.version3 ?: "N/A",
+                        text = state.version3,
                         style = TextStyle(
                             fontSize = 16.sp,
                             color = textColor.copy(0.8f),
@@ -189,4 +177,4 @@ fun VersionScreen(navController: NavController) {
             }
         }
     }
-}
+}

android/app/src/main/java/me/kavishdevar/librepods/presentation/theme/Color.kt

@@ -17,7 +17,7 @@
 */
 
 
-package me.kavishdevar.librepods.ui.theme
+package me.kavishdevar.librepods.presentation.theme
 
 import androidx.compose.ui.graphics.Color
 
@@ -27,4 +27,4 @@ val Pink80 = Color(0xFFEFB8C8)
 
 val Purple40 = Color(0xFF6650a4)
 val PurpleGrey40 = Color(0xFF625b71)
-val Pink40 = Color(0xFF7D5260)
+val Pink40 = Color(0xFF7D5260)