android: refactor... stuff (2, see description)

implement buddy (head tracking and heartrate, finally!), added swipe anywhere to go back, and cleaned up app settings a bit.

android/app/build.gradle.kts

@@ -9,6 +9,7 @@ plugins {
     alias(libs.plugins.ksp)
     alias(libs.plugins.kotlin.serialization)
     alias(libs.plugins.room3)
+    alias(libs.plugins.protobuf)
 //    alias(libs.plugins.hilt)
     id("kotlin-parcelize")
 }
@@ -31,13 +32,30 @@ room3 {
     schemaDirectory("$projectDir/schemas")
 }
 
+protobuf {
+    protoc {
+        artifact = libs.protobuf.protoc.get().toString()
+    }
+
+    generateProtoTasks {
+        all().forEach { task ->
+            task.builtins {
+                create("java")
+                create("kotlin")
+            }
+        }
+    }
+}
+
 kotlin {
     compilerOptions {
         optIn.addAll(
             "androidx.compose.material3.ExperimentalMaterial3ExpressiveApi",
             "kotlin.uuid.ExperimentalUuidApi",
             "kotlinx.coroutines.FlowPreview",
-            "kotlinx.serialization.ExperimentalSerializationApi"
+            "kotlinx.serialization.ExperimentalSerializationApi",
+            "kotlinx.coroutines.ExperimentalCoroutinesApi",
+            "dev.chrisbanes.haze.materials.ExperimentalHazeMaterialsApi"
         )
     }
 }
@@ -136,6 +154,7 @@ dependencies {
     implementation(platform(libs.androidx.compose.bom))
     implementation(libs.accompanist.permissions)
     implementation(libs.androidx.core.ktx)
+    implementation(libs.androidx.foundation.layout)
     implementation(libs.androidx.lifecycle.process)
     implementation(libs.androidx.lifecycle.runtime.ktx)
     implementation(libs.androidx.activity.compose)
@@ -169,8 +188,9 @@ dependencies {
     implementation(libs.androidx.room3.runtime)
     ksp(libs.androidx.room3.compiler)
     implementation(libs.kotlinx.serialization.cbor)
-
+    implementation(libs.protobuf.kotlin)
 //    compileOnly(files("../../../framework-classes.jar"))
+    implementation(libs.androidx.healthconnect.client)
 }
 
 aboutLibraries {

android/app/schemas/me.kavishdevar.librepods.database.LibrePodsDatabase/1.json

@@ -2,7 +2,7 @@
   "formatVersion": 1,
   "database": {
     "version": 1,
-    "identityHash": "ae2e348e0198b8d871e9e3ed6959ab30",
+    "identityHash": "7a502eac34ab57e1c12ba8f849e172cf",
     "entities": [
       {
         "tableName": "AppleEntity",
@@ -42,7 +42,7 @@
       },
       {
         "tableName": "AppSettingsEntity",
-        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`id` INTEGER NOT NULL, `nightMode` TEXT NOT NULL, `designSystem` TEXT NOT NULL, `debugMode` INTEGER NOT NULL, `bleScanMode` INTEGER NOT NULL, `bleReportDelay` INTEGER NOT NULL, PRIMARY KEY(`id`))",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`id` INTEGER NOT NULL, `nightMode` TEXT NOT NULL, `designSystem` TEXT NOT NULL, `useHighestRefreshRate` INTEGER NOT NULL, `debugMode` INTEGER NOT NULL, `bleScanMode` INTEGER NOT NULL, `bleReportDelay` INTEGER NOT NULL, `swipeAnywhereForBack` INTEGER NOT NULL, PRIMARY KEY(`id`))",
         "fields": [
           {
             "fieldPath": "id",
@@ -62,6 +62,12 @@
             "affinity": "TEXT",
             "notNull": true
           },
+          {
+            "fieldPath": "useHighestRefreshRate",
+            "columnName": "useHighestRefreshRate",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
           {
             "fieldPath": "debugMode",
             "columnName": "debugMode",
@@ -79,6 +85,12 @@
             "columnName": "bleReportDelay",
             "affinity": "INTEGER",
             "notNull": true
+          },
+          {
+            "fieldPath": "swipeAnywhereForBack",
+            "columnName": "swipeAnywhereForBack",
+            "affinity": "INTEGER",
+            "notNull": true
           }
         ],
         "primaryKey": {
@@ -163,11 +175,41 @@
             "appWidgetId"
           ]
         }
+      },
+      {
+        "tableName": "HeartRateSampleEntity",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `timestamp` INTEGER NOT NULL, `bpm` INTEGER NOT NULL)",
+        "fields": [
+          {
+            "fieldPath": "id",
+            "columnName": "id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "timestamp",
+            "columnName": "timestamp",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "bpm",
+            "columnName": "bpm",
+            "affinity": "INTEGER",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "id"
+          ]
+        }
       }
     ],
     "setupQueries": [
       "CREATE TABLE IF NOT EXISTS room_master_table (id INTEGER PRIMARY KEY,identity_hash TEXT)",
-      "INSERT OR REPLACE INTO room_master_table (id,identity_hash) VALUES(42, 'ae2e348e0198b8d871e9e3ed6959ab30')"
+      "INSERT OR REPLACE INTO room_master_table (id,identity_hash) VALUES(42, '7a502eac34ab57e1c12ba8f849e172cf')"
     ]
   }
 }

android/app/src/main/AndroidManifest.xml

@@ -27,7 +27,8 @@
         android:name="android.permission.INTERACT_ACROSS_USERS"
         tools:ignore="ProtectedPermissions" />
     <uses-permission
-        android:name="android.permission.MODIFY_AUDIO_ROUTING"/>
+        android:name="android.permission.MODIFY_AUDIO_ROUTING"
+        tools:ignore="ProtectedPermissions" />
 
     <uses-permission android:name="android.permission.BLUETOOTH" />
 
@@ -48,6 +49,8 @@
 <!--        android:maxSdkVersion="30" />-->
     <uses-permission android:name="com.android.vending.BILLING" />
 
+    <uses-permission android:name="android.permission.health.WRITE_HEART_RATE"/>
+
     <application
         android:name=".LibrePodsApplication"
         android:allowBackup="true"
@@ -154,6 +157,28 @@
                 android:name="android.support.FILE_PROVIDER_PATHS"
                 android:resource="@xml/file_paths" />
         </provider>
-    </application>
 
+        <activity
+            android:name=".presentation.activities.PrivacyPolicyActivity"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="androidx.health.ACTION_SHOW_PERMISSIONS_RATIONALE" />
+            </intent-filter>
+        </activity>
+
+        <activity-alias
+            android:name="ViewPermissionUsageActivity"
+            android:exported="true"
+            android:targetActivity=".presentation.activities.PrivacyPolicyActivity"
+            android:permission="android.permission.START_VIEW_PERMISSION_USAGE">
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW_PERMISSION_USAGE" />
+                <category android:name="android.intent.category.HEALTH_PERMISSIONS" />
+            </intent-filter>
+        </activity-alias>
+
+    </application>
+    <queries>
+        <package android:name="com.google.android.apps.healthdata" />
+    </queries>
 </manifest>

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

@@ -1,6 +1,7 @@
 package me.kavishdevar.librepods
 
 import android.app.Application
+import androidx.health.connect.client.HealthConnectClient
 import androidx.lifecycle.DefaultLifecycleObserver
 import androidx.lifecycle.LifecycleOwner
 import androidx.lifecycle.ProcessLifecycleOwner
@@ -12,7 +13,10 @@ import me.kavishdevar.librepods.billing.BillingProviderFactory
 import me.kavishdevar.librepods.database.LibrePodsDatabase
 import me.kavishdevar.librepods.repository.AppDataRepository
 import me.kavishdevar.librepods.repository.AppleRepository
+import me.kavishdevar.librepods.repository.HeartRateRepository
+import me.kavishdevar.librepods.repository.RecordingRepository
 import me.kavishdevar.librepods.repository.WidgetConfigRepository
+import me.kavishdevar.librepods.utils.GestureFeedback
 import me.kavishdevar.librepods.utils.XposedServiceHolder
 import me.kavishdevar.librepods.utils.XposedState
 
@@ -24,6 +28,18 @@ class LibrePodsApplication: Application(), XposedServiceHelper.OnServiceListener
     val appDataRepository by lazy { AppDataRepository(database.appSettingsDao(), database.appStateDao()) }
     val widgetConfigRepository by lazy { WidgetConfigRepository(database.widgetConfigDao()) }
 
+    val recordingRepository by lazy { RecordingRepository(applicationContext) }
+    val heartRateRepository by lazy { HeartRateRepository(database.heartRateDao()) }
+
+    val healthConnectClient: HealthConnectClient? by lazy {
+        val status = HealthConnectClient.getSdkStatus(this)
+        if (status == HealthConnectClient.SDK_AVAILABLE) {
+            HealthConnectClient.getOrCreate(this)
+        } else {
+            null
+        }
+    }
+
     override fun onCreate() {
         System.loadLibrary("hiddenapi")
 
@@ -37,6 +53,8 @@ class LibrePodsApplication: Application(), XposedServiceHelper.OnServiceListener
         BillingManager.provider = BillingProviderFactory.create(this)
         ProcessLifecycleOwner.get().lifecycle.addObserver(this)
 
+        GestureFeedback.init(this)
+
         super<Application>.onCreate()
 
     }

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

@@ -37,8 +37,11 @@ import me.kavishdevar.librepods.bluetooth.aacp.packet.CustomEqPacket
 import me.kavishdevar.librepods.bluetooth.aacp.packet.EarDetectionResponsePacket
 import me.kavishdevar.librepods.bluetooth.aacp.packet.InformationPacket
 import me.kavishdevar.librepods.bluetooth.aacp.packet.MagicKeyResponsePacket
+import me.kavishdevar.librepods.bluetooth.aacp.packet.RTBuddyPacket
 import me.kavishdevar.librepods.bluetooth.aacp.packet.RenamePacket
 import me.kavishdevar.librepods.bluetooth.aacp.packet.StemPressPacket
+import me.kavishdevar.librepods.bluetooth.aacp.rtbuddy.proto.SensorDataWX
+import me.kavishdevar.librepods.bluetooth.aacp.rtbuddy.proto.SensorServiceType
 import me.kavishdevar.librepods.bluetooth.aacp.types.AppleEvent
 import me.kavishdevar.librepods.bluetooth.aacp.types.Capability
 import me.kavishdevar.librepods.bluetooth.aacp.types.CapabilityEntry
@@ -48,12 +51,18 @@ import me.kavishdevar.librepods.bluetooth.aacp.types.ControlCommandIdentifier
 import me.kavishdevar.librepods.bluetooth.aacp.types.CustomEq
 import me.kavishdevar.librepods.bluetooth.aacp.types.MagicKeyType
 import me.kavishdevar.librepods.bluetooth.aacp.types.MessageOpcode
+import me.kavishdevar.librepods.bluetooth.aacp.types.RTBuddyDescriptor
+import me.kavishdevar.librepods.bluetooth.aacp.types.SensorDataWxBuddyPayload
 import me.kavishdevar.librepods.data.audio.MicrophoneFrame
+import me.kavishdevar.librepods.data.heartrate.HeartRateSample
 import me.kavishdevar.librepods.devices.AppleDevice
 import me.kavishdevar.librepods.devices.BatteryStatus
+import me.kavishdevar.librepods.utils.HeadTracking
 import java.nio.ByteBuffer
 import java.nio.ByteOrder
 import kotlin.io.encoding.ExperimentalEncodingApi
+import kotlin.time.Clock
+import kotlin.time.Duration
 import kotlin.time.Duration.Companion.milliseconds
 
 class AACPManager(private val device: AppleDevice) {
@@ -62,6 +71,8 @@ class AACPManager(private val device: AppleDevice) {
 
     private var socket: BluetoothSocket? = null
 
+    private val rtBuddyManager = RTBuddyManager(::sendPacket)
+
     fun connect(): Boolean {
         if (socket != null && socket!!.isConnected) {
             Log.i(TAG, "Already connected")
@@ -192,7 +203,7 @@ class AACPManager(private val device: AppleDevice) {
             )
             return
         }
-        Log.d(TAG, "received packet: ${packet.toHexString()}")
+//        Log.d(TAG, "received packet: ${packet.toHexString()}")
         val opcode = packet[4]
         when (MessageOpcode.fromByte(opcode)) {
             MessageOpcode.BUD_ROLE -> {
@@ -314,7 +325,28 @@ class AACPManager(private val device: AppleDevice) {
             }
 
             MessageOpcode.BUDDY_COMMAND -> {
-                Log.w(TAG, "BUDDY not implemented")
+                val packet = RTBuddyPacket.parse(packet)
+
+                val rtBuddyPayload = packet.rtBuddyPayload
+
+                rtBuddyManager.handlePacket(packet)
+
+                when (rtBuddyPayload.descriptor) {
+                    RTBuddyDescriptor.SENSOR_DATA_WX -> {
+                        val sensorDataWxBuddyPayload = rtBuddyPayload as SensorDataWxBuddyPayload
+                        val data = sensorDataWxBuddyPayload.data
+
+                        handleSensorData(data)
+                    } else -> {
+                        Log.d(TAG, "Unhandled descriptor: ${rtBuddyPayload.descriptor}")
+                    }
+                }
+
+//                device.updateState {
+//                    it.copy(
+//                        aacpPackets = it.aacpPackets + packet
+//                    )
+//                }
             }
 
             MessageOpcode.MAGIC_KEYS_RESPONSE -> {
@@ -625,55 +657,7 @@ class AACPManager(private val device: AppleDevice) {
         return sendPacket(packet)
     }
 
-    fun sendStartHeadTracking(): Boolean {
+    fun setSensorServiceReportInterval(sensorServiceType: SensorServiceType, interval: Duration): Boolean = rtBuddyManager.setSensorServiceReportInterval(sensorServiceType, interval)
-        val payload = byteArrayOf(
-            0x00, 0x00, 0x10, 0x00,
-            0x10, 0x00, 0x08, 0xA1.toByte(), 0x02, 0x42, 0x0B, 0x08, 0x0E, 0x10, 0x02, 0x1A, 0x05, 0x01, 0x40, 0x9C.toByte(), 0x00, 0x00
-        )
-        val packet = AACPPacket.createUnknownPacket(
-            MessageOpcode.BUDDY_COMMAND,
-            payload
-        )
-        return sendPacket(packet)
-    }
-
-    fun sendStartAlternateHeadTracking(): Boolean {
-        val payload = byteArrayOf(
-            0x00, 0x00, 0x10, 0x00,
-            0x0F, 0x00, 0x08, 0x73, 0x42, 0x0B, 0x08, 0x10, 0x10, 0x02, 0x1A, 0x05, 0x01, 0x40, 0x9C.toByte(), 0x00, 0x00
-        )
-        val packet = AACPPacket.createUnknownPacket(
-            MessageOpcode.BUDDY_COMMAND,
-            payload
-        )
-        return sendPacket(packet)
-    }
-
-    fun sendStopHeadTracking(): Boolean {
-        val payload = byteArrayOf(
-            0x00, 0x00, 0x10, 0x00,
-            0x11, 0x00, 0x08, 0x7E, 0x10, 0x02, 0x42, 0x0B, 0x08, 0x4E, 0x10, 0x02, 0x1A, 0x05, 0x01, 0x00, 0x00, 0x00, 0x00
-        )
-        val packet = AACPPacket.createUnknownPacket(
-            MessageOpcode.BUDDY_COMMAND,
-            payload
-        )
-        return sendPacket(packet)
-    }
-
-    fun sendStopAlternateHeadTracking(): Boolean {
-        val payload = byteArrayOf(
-            0x00, 0x00, 0x10, 0x00,
-            0x0F, 0x00, 0x08, 0x75, 0x42, 0x0B, 0x08, 0x10, 0x10, 0x02, 0x1A, 0x05, 0x01, 0x00, 0x00, 0x00, 0x00
-        )
-
-        val packet = AACPPacket.createUnknownPacket(
-            opcode = MessageOpcode.BUDDY_COMMAND,
-            payload = payload,
-        )
-
-        return sendPacket(packet)
-    }
 
     fun sendRename(name: String): Boolean {
         val packet = RenamePacket.create(name)
@@ -1045,6 +1029,8 @@ class AACPManager(private val device: AppleDevice) {
                 connectedDevices = emptyList(),
                 microphoneFrames = emptyList(),
                 controlStates = emptyMap(),
+                aacpPackets = emptyList(),
+                currentHeartRate = null
             )
         }
     }
@@ -1174,4 +1160,93 @@ class AACPManager(private val device: AppleDevice) {
 
         return capabilities
     }
+
+    private fun handleSensorData(data: SensorDataWX) {
+        if (data.hasCommand()) {
+            when (data.command.service) {
+                SensorServiceType.ACTIVITY, SensorServiceType.DEVMOTION6 -> {
+                    val payload = data.command.payload.toByteArray()
+
+                    if (payload.size != 58) {
+                        Log.w(
+                            TAG,
+                            "Unexpected payload size for ACTIVITY/DEVMOTION6: ${payload.size}, payload: ${payload.toHexString()}"
+                        )
+                        return
+                    }
+
+                    fun i16(offset: Int): Int =
+                        (payload[offset].toInt() and 0xFF) or
+                            ((payload[offset + 1].toInt() and 0xFF) shl 8)
+                                .let { value ->
+                                    if (value and 0x8000 != 0) value - 0x10000 else value
+                                }
+
+                    HeadTracking.addAccel(i16(device.settings.value.headGesturesVerticalOffset).toFloat(), i16(device.settings.value.headGesturesHorizontalOffset).toFloat())
+                }
+
+                SensorServiceType.HEARTRATE -> {
+                    Log.d(
+                        TAG,
+                        "Received sensor data for service: ${data.command.service}, payload: ${data.command.payload.toByteArray().toHexString()}"
+                    )
+                }
+
+                SensorServiceType.HEARTRATEv2 -> {
+                    val payload = data.command.payload.toByteArray()
+                    val timestamp = Clock.System.now()
+                    if (payload.size == 18) {
+                        val heartRate = payload[1].toInt()
+
+                        // same as healthconnect's datatype. 300 isn't possible anyway, but whatever
+                        if (heartRate !in 1..300) {
+                            Log.w(
+                                TAG,
+                                "Invalid heart rate value: $heartRate"
+                            )
+                            return
+                        }
+
+                        if (!device.state.value.hrmActive) {
+                            device.updateState {
+                                it.copy(
+                                    hrmActive = true
+                                )
+                            }
+                        }
+
+                        Log.i(
+                            TAG,
+                            "hr: $heartRate bpm"
+                        )
+
+                        val heartRateSample = HeartRateSample(
+                            bpm = heartRate,
+                            timestamp = timestamp
+                        )
+
+                        device.updateState {
+                            it.copy(
+                                currentHeartRate = heartRateSample
+                            )
+                        }
+
+                    } else {
+                        Log.w(
+                            TAG,
+                            "Unexpected payload size for HEARTRATEv2: ${payload.size}, payload: ${payload.toHexString()}"
+                        )
+                    }
+                }
+
+                else -> {
+                    val payload = data.command.payload.toByteArray()
+                    Log.d(
+                        TAG,
+                        "Unhandled sensor command service: ${data.command.service}, payload: ${payload.toHexString()}"
+                    )
+                }
+            }
+        }
+    }
 }

android/app/src/main/kotlin/me/kavishdevar/librepods/bluetooth/aacp/RTBuddyManager.kt

@@ -0,0 +1,122 @@
+package me.kavishdevar.librepods.bluetooth.aacp
+
+import android.util.Log
+import com.google.protobuf.ByteString
+import me.kavishdevar.librepods.bluetooth.aacp.packet.AACPPacket
+import me.kavishdevar.librepods.bluetooth.aacp.packet.RTBuddyPacket
+import me.kavishdevar.librepods.bluetooth.aacp.rtbuddy.proto.SensorDataWX
+import me.kavishdevar.librepods.bluetooth.aacp.rtbuddy.proto.SensorServiceSetting
+import me.kavishdevar.librepods.bluetooth.aacp.rtbuddy.proto.SensorServiceType
+import me.kavishdevar.librepods.bluetooth.aacp.types.SensorDataWxBuddyPayload
+import me.kavishdevar.librepods.devices.PacketDestination
+import kotlin.time.Duration
+
+class RTBuddyManager(
+    private val sendPacket: (AACPPacket) -> Boolean,
+) {
+    companion object {
+        private const val TAG = "RTBuddyManager"
+    }
+
+    private var sequence = 0
+
+    private fun nextSequence(): Int {
+        val next = sequence
+        sequence = (sequence + 1) and 0x7FFFFFFF
+        return next
+    }
+
+    private fun observeSequence(data: SensorDataWX) {
+        Log.d(TAG, "Received SensorDataWX seq=${data.seq}")
+    }
+
+    fun handlePacket(packet: RTBuddyPacket) {
+        when (val payload = packet.rtBuddyPayload) {
+            is SensorDataWxBuddyPayload -> {
+                val data = payload.data
+                observeSequence(data)
+
+//                handleSensorData(data)
+            }
+
+            else -> {
+                Log.d(
+                    TAG,
+                    "Unhandled RTBuddy payload: ${payload.descriptor}"
+                )
+            }
+        }
+    }
+
+//    private fun handleSensorData(data: SensorDataWX) {
+//        if (data.hasServiceSettings()) {
+//            when (data.serviceSettings.service) {
+//                SensorServiceType.ACTIVITY,
+//                SensorServiceType.DEVMOTION6 -> {
+//                    // Head tracking data/configuration
+//                }
+//
+//                SensorServiceType.HEARTRATE -> {
+//                    // Heart rate
+//                }
+//
+//                else -> {
+//                    Log.d(
+//                        TAG,
+//                        "Unhandled sensor service: ${data.serviceSettings.service}"
+//                    )
+//                }
+//            }
+//        }
+//    }
+
+    fun sendSensorData(
+        data: SensorDataWX,
+    ): Boolean {
+        val dataWithSequence = data.toBuilder()
+            .setSeq(nextSequence())
+            .build()
+
+        val packet = RTBuddyPacket.create(
+            rtBuddyPayload = SensorDataWxBuddyPayload(
+                data = dataWithSequence,
+            ),
+            destination = PacketDestination.DEVICE,
+        )
+
+        return sendPacket(packet)
+    }
+
+    private fun sendSensorServiceSetting(
+        service: SensorServiceType,
+        configuration: ByteArray,
+    ): Boolean {
+        val data = SensorDataWX.newBuilder()
+            .setServiceSettings(
+                SensorServiceSetting.newBuilder()
+                    .setService(service)
+                    .setSetting(2)
+                    .setConfiguration(
+                        ByteString.copyFrom(configuration)
+                    )
+            )
+            .build()
+
+        return sendSensorData(data)
+    }
+
+    fun setSensorServiceReportInterval(sensorServiceType: SensorServiceType, interval: Duration): Boolean = sendSensorServiceSetting(
+        service = sensorServiceType,
+        configuration = byteArrayOf(0x01) + interval.toMicrosUINT32LE()
+    )
+}
+
+private fun Duration.toMicrosUINT32LE(): ByteArray {
+    val microseconds = this.inWholeMicroseconds
+    return byteArrayOf(
+        microseconds.toByte(),
+        (microseconds shr 8).toByte(),
+        (microseconds shr 16).toByte(),
+        (microseconds shr 24).toByte()
+    )
+}

android/app/src/main/kotlin/me/kavishdevar/librepods/bluetooth/aacp/packet/RTBuddyPacket.kt

@@ -0,0 +1,121 @@
+package me.kavishdevar.librepods.bluetooth.aacp.packet
+
+import me.kavishdevar.librepods.bluetooth.aacp.rtbuddy.proto.SensorDataWX
+import me.kavishdevar.librepods.bluetooth.aacp.types.MessageOpcode
+import me.kavishdevar.librepods.bluetooth.aacp.types.Opcode
+import me.kavishdevar.librepods.bluetooth.aacp.types.RTBuddyDescriptor
+import me.kavishdevar.librepods.bluetooth.aacp.types.RTBuddyPayload
+import me.kavishdevar.librepods.bluetooth.aacp.types.SensorDataWxBuddyPayload
+import me.kavishdevar.librepods.bluetooth.aacp.types.UnknownBuddyPayload
+import me.kavishdevar.librepods.devices.PacketDestination
+
+data class RTBuddyPacket(
+    val rtBuddyPayload: RTBuddyPayload,
+
+    override val payload: ByteArray,
+    override val destination: PacketDestination,
+) : AACPPacket {
+
+    override val type: AACPPacketType = AACPPacketType.MESSAGE
+    override val service: Byte = 0x04
+    override val opcode: Opcode = MessageOpcode.BUDDY_COMMAND
+
+    companion object {
+        fun parse(
+            data: ByteArray,
+            destination: PacketDestination = PacketDestination.HOST,
+        ): RTBuddyPacket {
+            val payload = if (
+                data.size >= 6 &&
+                data[0] == AACPPacketType.MESSAGE.value &&
+                data[4] == MessageOpcode.BUDDY_COMMAND.value
+            ) {
+                data.copyOfRange(6, data.size)
+            } else {
+                data
+            }
+
+            require(payload.size >= 6) {
+                "RTBuddy packet is too short: ${payload.size}"
+            }
+
+            val descriptorValue =
+                (payload[0].toUInt() and 0xFFu) or
+                    ((payload[1].toUInt() and 0xFFu) shl 8) or
+                    ((payload[2].toUInt() and 0xFFu) shl 16) or
+                    ((payload[3].toUInt() and 0xFFu) shl 24)
+
+            val length =
+                (payload[4].toInt() and 0xFF) or
+                    ((payload[5].toInt() and 0xFF) shl 8)
+
+            require(payload.size >= 6 + length) {
+                "RTBuddy payload truncated: expected $length bytes, got ${payload.size - 6}"
+            }
+
+            val descriptor = RTBuddyDescriptor.fromValue(descriptorValue)
+            val data = payload.copyOfRange(6, 6 + length)
+
+            val rtBuddyPayload: RTBuddyPayload = when (descriptor) {
+                RTBuddyDescriptor.SENSOR_DATA_WX -> {
+                    SensorDataWxBuddyPayload(
+                        data = SensorDataWX.parseFrom(data),
+                    )
+                }
+
+                else -> {
+                    UnknownBuddyPayload(
+                        descriptor = descriptor,
+                        descriptorValue = descriptorValue,
+                        data = data,
+                    )
+                }
+            }
+
+            return RTBuddyPacket(
+                rtBuddyPayload = rtBuddyPayload,
+                payload = payload,
+                destination = destination,
+            )
+        }
+        fun create(
+            rtBuddyPayload: RTBuddyPayload,
+            destination: PacketDestination = PacketDestination.DEVICE,
+        ): RTBuddyPacket {
+            val data = when (rtBuddyPayload) {
+                is SensorDataWxBuddyPayload ->
+                    rtBuddyPayload.data.toByteArray()
+
+                is UnknownBuddyPayload ->
+                    rtBuddyPayload.data
+            }
+
+            val descriptorValue = when (rtBuddyPayload) {
+                is SensorDataWxBuddyPayload ->
+                    rtBuddyPayload.descriptor.value
+
+                is UnknownBuddyPayload ->
+                    rtBuddyPayload.descriptorValue
+            }
+
+            require(data.size <= 0xFFFF) {
+                "RTBuddy payload too large: ${data.size}"
+            }
+
+            val payload = byteArrayOf(
+                (descriptorValue and 0xFFu).toByte(),
+                ((descriptorValue shr 8) and 0xFFu).toByte(),
+                ((descriptorValue shr 16) and 0xFFu).toByte(),
+                ((descriptorValue shr 24) and 0xFFu).toByte(),
+                (data.size and 0xFF).toByte(),
+                ((data.size shr 8) and 0xFF).toByte(),
+            ) + data
+
+            return RTBuddyPacket(
+                rtBuddyPayload = rtBuddyPayload,
+                payload = payload,
+                destination = destination,
+            )
+        }
+    }
+}

android/app/src/main/kotlin/me/kavishdevar/librepods/bluetooth/aacp/types/RTBuddyDescriptor.kt

@@ -0,0 +1,35 @@
+package me.kavishdevar.librepods.bluetooth.aacp.types
+
+enum class RTBuddyDescriptor(val value: UInt) {
+    ACOUSTIC(0x00000001u),
+    SCP(0x00000002u),
+    BUDDY(0x00000004u),
+    VIRTUAL_CLI_PRIMARY(0x00000008u),
+    VIRTUAL_CLI_SECONDARY(0x00000010u),
+    APP_DIAGNOSTICS(0x00000020u),
+    LOGGING_TRIGGER(0x00000040u),
+    DEBUG_DATA(0x00000080u),
+    TOUCH(0x00000100u),
+    LOG_CONFIG(0x00000200u),
+    LOG_MSG(0x00000400u),
+    SENSOR(0x00000800u),
+    SWITCH_CONTROL(0x00001000u),
+    MISMATCHED_BUDS(0x00002000u),
+    UNKNOWN_4000(0x00004000u),
+    B2P(0x00008000u),
+    CONTINUITY(0x00010000u),
+    BATTERY_HEALTH(0x00020000u),
+    SENSOR_V2(0x00040000u),
+    OBC_V2(0x00080000u),
+    SENSOR_DATA_WX(0x00100000u),
+    UNKNOWN_00200000(0x00200000u),
+    UNKNOWN_00400000(0x00400000u),
+    DIGITAL_ENGRAVING_INFO(0x00800000u),
+    ACTIVE_MODE_DATA(0x01000000u),
+
+    UNKNOWN(0xFFFFFFFFu); // better way?
+
+    companion object {
+        fun fromValue(value: UInt): RTBuddyDescriptor = entries.firstOrNull { it.value == value } ?: UNKNOWN
+    }
+}

android/app/src/main/kotlin/me/kavishdevar/librepods/bluetooth/aacp/types/RTBuddyPayload.kt

@@ -0,0 +1,11 @@
+package me.kavishdevar.librepods.bluetooth.aacp.types
+
+sealed interface RTBuddyPayload {
+    val descriptor: RTBuddyDescriptor
+}
+
+data class UnknownBuddyPayload(
+    override val descriptor: RTBuddyDescriptor,
+    val descriptorValue: UInt,
+    val data: ByteArray,
+) : RTBuddyPayload

android/app/src/main/kotlin/me/kavishdevar/librepods/bluetooth/aacp/types/SensorDataWxBuddyPayload.kt

@@ -0,0 +1,9 @@
+package me.kavishdevar.librepods.bluetooth.aacp.types
+
+import me.kavishdevar.librepods.bluetooth.aacp.rtbuddy.proto.SensorDataWX
+
+data class SensorDataWxBuddyPayload(
+    val data: SensorDataWX,
+): RTBuddyPayload {
+    override val descriptor: RTBuddyDescriptor = RTBuddyDescriptor.SENSOR_DATA_WX
+}

android/app/src/main/kotlin/me/kavishdevar/librepods/data/heartrate/HeartRateDao.kt

@@ -0,0 +1,24 @@
+package me.kavishdevar.librepods.data.heartrate
+
+import androidx.room3.Dao
+import androidx.room3.Insert
+import androidx.room3.Query
+import me.kavishdevar.librepods.database.heartrate.HeartRateSampleEntity
+import kotlin.time.Instant
+
+@Dao
+interface HeartRateDao {
+    @Insert
+    suspend fun insert(sample: HeartRateSampleEntity)
+
+    @Query("""
+        SELECT * FROM HeartRateSampleEntity
+        WHERE timestamp >= :start
+        AND timestamp < :end
+        ORDER BY timestamp ASC
+    """)
+    suspend fun get(
+        start: Instant,
+        end: Instant,
+    ): List<HeartRateSampleEntity>
+}

android/app/src/main/kotlin/me/kavishdevar/librepods/data/heartrate/HeartRateSample.kt

@@ -0,0 +1,9 @@
+package me.kavishdevar.librepods.data.heartrate
+
+import kotlin.time.Instant
+
+data class HeartRateSample (
+    val bpm: Int,
+    val timestamp: Instant
+)
+// TODO: implement records (don't have a better place to put this)

android/app/src/main/kotlin/me/kavishdevar/librepods/data/updates/Updates.kt

@@ -2,7 +2,7 @@ package me.kavishdevar.librepods.data.updates
 
 import androidx.compose.runtime.Composable
 import me.kavishdevar.librepods.R
-import me.kavishdevar.librepods.presentation.screens.apple.AirPodsSettingsScreenPreviewMaterial
+import me.kavishdevar.librepods.presentation.screens.apple.AppleSettingsScreenPreviewMaterial
 import me.kavishdevar.librepods.presentation.screens.apple.EqualizerScreenPreviewApple
 import me.kavishdevar.librepods.presentation.screens.apple.EqualizerScreenPreviewMaterial
 import me.kavishdevar.librepods.presentation.theme.DesignSystem
@@ -13,7 +13,7 @@ val update1_0_0 = listOf(
             titleRes = R.string.material3e,
             descriptionRes = R.string.update_m3e_description,
             demoComposeable = @Composable {
-                AirPodsSettingsScreenPreviewMaterial()
+                AppleSettingsScreenPreviewMaterial()
             }
         ),
         UpdateItem(

android/app/src/main/kotlin/me/kavishdevar/librepods/database/Converters.kt

@@ -8,6 +8,7 @@ import me.kavishdevar.librepods.bluetooth.MacAddress
 import me.kavishdevar.librepods.data.apple.AppleCache
 import me.kavishdevar.librepods.devices.AppleMetadata
 import me.kavishdevar.librepods.devices.AppleSettings
+import kotlin.time.Instant
 
 object Converters {
     @ColumnTypeConverter
@@ -39,4 +40,12 @@ object Converters {
     @ColumnTypeConverter
     fun bytesToAppleCache(bytes: ByteArray): AppleCache =
         Cbor.decodeFromByteArray(bytes)
+
+    @ColumnTypeConverter
+    fun kotlinInstantToLong(instant: Instant): Long =
+        instant.toEpochMilliseconds()
+
+    @ColumnTypeConverter
+    fun longToKotlinInstant(millis: Long): Instant =
+        Instant.fromEpochMilliseconds(millis)
 }

android/app/src/main/kotlin/me/kavishdevar/librepods/database/LibrePodsDatabase.kt

@@ -3,12 +3,14 @@ package me.kavishdevar.librepods.database
 import androidx.room3.ColumnTypeConverters
 import androidx.room3.Database
 import androidx.room3.RoomDatabase
+import me.kavishdevar.librepods.data.heartrate.HeartRateDao
 import me.kavishdevar.librepods.database.app.AppSettingsDao
 import me.kavishdevar.librepods.database.app.AppSettingsEntity
 import me.kavishdevar.librepods.database.app.AppStateDao
 import me.kavishdevar.librepods.database.app.AppStateEntity
 import me.kavishdevar.librepods.database.apple.AppleDao
 import me.kavishdevar.librepods.database.apple.AppleEntity
+import me.kavishdevar.librepods.database.heartrate.HeartRateSampleEntity
 import me.kavishdevar.librepods.database.widget.WidgetConfigDao
 import me.kavishdevar.librepods.database.widget.WidgetConfigEntity
 
@@ -19,6 +21,7 @@ import me.kavishdevar.librepods.database.widget.WidgetConfigEntity
         AppSettingsEntity::class,
         AppStateEntity::class,
         WidgetConfigEntity::class,
+        HeartRateSampleEntity::class
     ],
     version = 1,
 )
@@ -29,4 +32,6 @@ abstract class LibrePodsDatabase: RoomDatabase() {
     abstract fun appStateDao(): AppStateDao
 
     abstract fun widgetConfigDao(): WidgetConfigDao
+
+    abstract fun heartRateDao(): HeartRateDao
 }

android/app/src/main/kotlin/me/kavishdevar/librepods/database/app/AppSettingsEntity.kt

@@ -13,12 +13,12 @@ data class AppSettingsEntity(
 
     val nightMode: NightTheme = NightTheme.System,
     val designSystem: DesignSystem = DesignSystem.Material,
+    val useHighestRefreshRate: Boolean = false,
 
-    /**
-     * Currently only shows the button for Debug screen.
-     */
     val debugMode: Boolean = false,
 
     val bleScanMode: Int = ScanSettings.SCAN_MODE_BALANCED,
     val bleReportDelay: Long = 0,
+
+    val swipeAnywhereForBack: Boolean = true,
 )

android/app/src/main/kotlin/me/kavishdevar/librepods/database/heartrate/HeartRateSampleEntity.kt

@@ -0,0 +1,14 @@
+package me.kavishdevar.librepods.database.heartrate
+
+import androidx.room3.Entity
+import androidx.room3.PrimaryKey
+import kotlin.time.Instant
+
+@Entity
+data class HeartRateSampleEntity(
+    @PrimaryKey(autoGenerate = true)
+    val id: Long = 0L,
+
+    val timestamp: Instant,
+    val bpm: Int,
+)

android/app/src/main/kotlin/me/kavishdevar/librepods/devices/AppleDevice.kt

@@ -18,12 +18,17 @@ import kotlinx.coroutines.flow.update
 import kotlinx.coroutines.launch
 import me.kavishdevar.librepods.bluetooth.MacAddress
 import me.kavishdevar.librepods.bluetooth.aacp.AACPManager
+import me.kavishdevar.librepods.bluetooth.aacp.rtbuddy.proto.SensorServiceType
 import me.kavishdevar.librepods.bluetooth.aacp.types.AppleEvent
 import me.kavishdevar.librepods.bluetooth.aacp.types.ControlCommandIdentifier
 import me.kavishdevar.librepods.bluetooth.att.ATTHandle
 import me.kavishdevar.librepods.bluetooth.att.ATTManager
 import me.kavishdevar.librepods.data.StemAction
+import me.kavishdevar.librepods.utils.GestureDetector
+import me.kavishdevar.librepods.utils.HeadTracking
+import kotlin.time.Duration
 import kotlin.time.Duration.Companion.milliseconds
+import kotlin.time.Duration.Companion.seconds
 
 private const val TAG = "AppleDevice"
 
@@ -77,6 +82,12 @@ class AppleDevice(
     val aacp = AACPManager(this)
     val att = ATTManager(this)
 
+
+    // ik, probably wrong place. TODO
+    private val gestureDetector by lazy {
+        GestureDetector()
+    }
+
     init {
         updateMetadata {
             it.copy(
@@ -205,25 +216,35 @@ class AppleDevice(
     }
 
     fun startHeadTracking() {
-        if (settings.value.alternateHeadTrackingPackets) {
+        aacp.setSensorServiceReportInterval(
-            aacp.sendStartAlternateHeadTracking()
+            sensorServiceType = if (metadata.value.version3.first().digitToInt() >= 8) SensorServiceType.DEVMOTION6 else SensorServiceType.ACTIVITY,
-        } else {
+            interval = _settings.value.headTrackingInterval
-            aacp.sendStartHeadTracking()
+        )
-        }
         _state.update {
             it.copy(headTrackingActive = true)
         }
     }
 
     fun stopHeadTracking() {
-        if (settings.value.alternateHeadTrackingPackets) {
+        aacp.setSensorServiceReportInterval(
-            aacp.sendStopAlternateHeadTracking()
+            sensorServiceType = if (metadata.value.version3.first().digitToInt() >= 8) SensorServiceType.DEVMOTION6 else SensorServiceType.ACTIVITY,
-        } else {
+            interval = Duration.ZERO
-            aacp.sendStopHeadTracking()
+        )
-        }
         _state.update {
             it.copy(headTrackingActive = false)
         }
+        gestureDetector.stopDetection()
+    }
+
+    fun detectHeadGestures(callback: (Boolean) -> Unit) {
+        if (!state.value.headTrackingActive) startHeadTracking()
+        if (!state.value.headTrackingActive) {
+            aacp.setSensorServiceReportInterval(
+                sensorServiceType = if (metadata.value.version3.first().digitToInt() >= 8) SensorServiceType.DEVMOTION6 else SensorServiceType.ACTIVITY,
+                interval = 40.milliseconds
+            )
+        }
+        gestureDetector.startDetection(HeadTracking.acceleration, callback)
     }
 
     fun setHeadGesturesEnabled(enabled: Boolean) {
@@ -232,6 +253,25 @@ class AppleDevice(
         }
     }
 
+    fun setHeadGesturesVerticalOffset(offset: Int) {
+        _settings.update {
+            it.copy(headGesturesVerticalOffset = offset)
+        }
+    }
+
+    fun setHeadGesturesHorizontalOffset(offset: Int) {
+        _settings.update {
+            it.copy(headGesturesHorizontalOffset = offset)
+        }
+    }
+
+    fun setHeadTrackingInterval(interval: Duration) {
+        startHeadTracking()
+        _settings.update {
+            it.copy(headTrackingInterval = interval)
+        }
+    }
+
     fun setCustomEqEnabled(enabled: Boolean) {
         aacp.setCustomEq(_state.value.customEq.copy(state = if(enabled) 2 else 1))
     }
@@ -243,17 +283,24 @@ class AppleDevice(
         aacp.setCustomEq(_state.value.customEq.copy(low = low, mid = mid, high = high))
     }
 
-    fun testHeadGestures() {
+    // AACPManager sets hrmActive true when a valid reading is received
-        if (settings.value.alternateHeadTrackingPackets) {
+    fun startHr(): Boolean = aacp.setSensorServiceReportInterval(
-            aacp.sendStartAlternateHeadTracking()
+        sensorServiceType = if (metadata.value.version3.first().digitToInt() >= 8) SensorServiceType.HEARTRATE_COMMAND else SensorServiceType.HEARTRATE,
-        } else {
+        interval = 1.seconds
-            aacp.sendStartHeadTracking()
+    )
-        }
+
-        _state.update {
+    fun stopHr(): Boolean {
+        val success = aacp.setSensorServiceReportInterval(
+            sensorServiceType = if (metadata.value.version3.first().digitToInt() >= 8) SensorServiceType.HEARTRATE_COMMAND else SensorServiceType.HEARTRATE,
+            interval = Duration.ZERO
+        )
+        if (state.value.hrmActive && success) _state.update {
             it.copy(
-                detectHeadGestures = true
+                hrmActive = false,
+                currentHeartRate = null
             )
         }
+        return success
     }
 
     fun sendRawPacket(data: ByteArray): Boolean = aacp.sendRawPacket(data)

android/app/src/main/kotlin/me/kavishdevar/librepods/devices/AppleSettings.kt

@@ -2,6 +2,8 @@ package me.kavishdevar.librepods.devices
 
 import kotlinx.serialization.Serializable
 import me.kavishdevar.librepods.data.StemAction
+import kotlin.time.Duration
+import kotlin.time.Duration.Companion.milliseconds
 
 @Serializable
 data class AppleSettings(
@@ -10,6 +12,9 @@ data class AppleSettings(
     val cacheDisconnectedComponentBattery: Boolean = true,
 
     val headGesturesEnabled: Boolean = true, // head_gestures_enabled
+    val headGesturesVerticalOffset: Int = 30,
+    val headGesturesHorizontalOffset: Int = 28,
+    val headTrackingInterval: Duration = 40.milliseconds,
 
     val leftLongPressAction: StemAction = StemAction.CYCLE_NOISE_CONTROL_MODES, // left_long_press_action
     val rightLongPressAction: StemAction = StemAction.CYCLE_NOISE_CONTROL_MODES, // right_long_press_action
@@ -17,8 +22,6 @@ data class AppleSettings(
     val showIslandPopup: Boolean = true, // show_island_popup
     val showBottomSheetPopup: Boolean = true, // show_bottom_sheet_popup
 
-    val alternateHeadTrackingPackets: Boolean = true, // use_alternate_head_tracking_packets
-
     val takeoverWhenDisconnected: Boolean = true, // takeover_when_disconnected
     val takeoverWhenIdle: Boolean = true, // takeover_when_idle
     val takeoverWhenMusic: Boolean = true, // takeover_when_music

android/app/src/main/kotlin/me/kavishdevar/librepods/devices/AppleState.kt

@@ -11,7 +11,10 @@ import me.kavishdevar.librepods.bluetooth.aacp.types.CustomEq
 import me.kavishdevar.librepods.bluetooth.aacp.types.MagicKeyType
 import me.kavishdevar.librepods.data.audio.MicrophoneFrame
 import me.kavishdevar.librepods.data.audio.MicrophoneState
+import me.kavishdevar.librepods.data.heartrate.HeartRateSample
 import me.kavishdevar.librepods.data.recording.RecordingState
+import kotlin.time.Duration
+import kotlin.time.Duration.Companion.seconds
 
 data class AppleState(
     val isLocallyConnected: Boolean = false,
@@ -51,5 +54,9 @@ data class AppleState(
     val headphoneAccomodationEnabledForMedia: Boolean = false,
     val headphoneAccomodationEnabledForPhone: Boolean = false,
 
+    val currentHeartRate: HeartRateSample? = null,
+    val hrmActive: Boolean = false,
+    val heartRateInterval: Duration = 1.seconds,
+
     val aacpPackets: List<AACPPacket> = emptyList(),
 ): DeviceState

android/app/src/main/kotlin/me/kavishdevar/librepods/presentation/activities/MainActivity.kt

@@ -28,9 +28,11 @@ import android.content.Context
 import android.content.Context.MODE_PRIVATE
 import android.content.Intent
 import android.content.ServiceConnection
+import android.hardware.display.DisplayManager
 import android.os.Bundle
 import android.os.IBinder
 import android.util.Log
+import android.view.Display
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
 import androidx.activity.enableEdgeToEdge
@@ -58,8 +60,8 @@ import me.kavishdevar.librepods.services.LibrePodsService
 import me.kavishdevar.librepods.utils.XposedState
 import kotlin.io.encoding.ExperimentalEncodingApi
 
-lateinit var serviceConnection: ServiceConnection
+private lateinit var serviceConnection: ServiceConnection
-lateinit var connectionStatusReceiver: BroadcastReceiver
+private lateinit var connectionStatusReceiver: BroadcastReceiver
 //lateinit var testReviewReceiver: BroadcastReceiver
 
 class MainActivity : ComponentActivity() {
@@ -95,6 +97,22 @@ class MainActivity : ComponentActivity() {
                 WindowCompat.getInsetsController(window, view).isAppearanceLightStatusBars = !darkTheme
             }
 
+            LaunchedEffect(settings.swipeAnywhereForBack) {
+                if (settings.useHighestRefreshRate) {
+                    val display = getSystemService(DisplayManager::class.java)
+                        .getDisplay(Display.DEFAULT_DISPLAY)
+
+                    val highest = display.supportedModes
+                        .maxByOrNull { it.refreshRate }
+
+                    highest?.let {
+                        window.attributes = window.attributes.apply {
+                            preferredRefreshRate = it.refreshRate
+                        }
+                    }
+                }
+            }
+
             LibrePodsTheme(
                 designSystem = settings.designSystem,
                 darkTheme = darkTheme

android/app/src/main/kotlin/me/kavishdevar/librepods/presentation/activities/NoiseControlWidgetConfigurationActivity.kt

@@ -7,7 +7,6 @@ import android.content.Intent
 import android.content.ServiceConnection
 import android.os.Bundle
 import android.os.IBinder
-import android.util.Log
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
 import androidx.compose.foundation.background
@@ -15,6 +14,7 @@ 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.fillMaxWidth
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
@@ -34,9 +34,9 @@ import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
 import me.kavishdevar.librepods.LibrePodsApplication
 import me.kavishdevar.librepods.R
+import me.kavishdevar.librepods.bluetooth.MacAddress
 import me.kavishdevar.librepods.database.widget.WidgetConfigEntity
 import me.kavishdevar.librepods.devices.Device
-import me.kavishdevar.librepods.bluetooth.MacAddress
 import me.kavishdevar.librepods.presentation.components.StyledButton
 import me.kavishdevar.librepods.presentation.components.StyledList
 import me.kavishdevar.librepods.presentation.components.StyledListItem
@@ -164,13 +164,15 @@ private fun WidgetDevicePickerContent(
 ) {
     StyledScaffold(
         title = stringResource(R.string.configure_widget),
-    ) {
+        navigateBack = null
+    ) { topPadding, bottomPadding ->
         Column(
             verticalArrangement = Arrangement.spacedBy(16.dp),
             modifier = Modifier
                 .fillMaxWidth()
                 .padding(horizontal = 16.dp)
         ) {
+            Spacer(modifier = Modifier.size(topPadding))
             if (devices.isEmpty()) {
                 Text(
                     text = "No devices found. Please ensure a compatible device is paired with your phone and try again.",
@@ -231,6 +233,8 @@ private fun WidgetDevicePickerContent(
                     )
                 }
             }
+
+            Spacer(modifier = Modifier.size(bottomPadding))
         }
     }
 }

android/app/src/main/kotlin/me/kavishdevar/librepods/presentation/activities/PrivacyPolicyActivity.kt

@@ -0,0 +1,90 @@
+package me.kavishdevar.librepods.presentation.activities
+
+import android.app.Activity
+import android.os.Bundle
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.activity.enableEdgeToEdge
+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.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.runtime.LaunchedEffect
+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.platform.LocalView
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.unit.dp
+import androidx.core.view.WindowCompat
+import me.kavishdevar.librepods.LibrePodsApplication
+import me.kavishdevar.librepods.R
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
+import me.kavishdevar.librepods.presentation.screens.onboarding.PrivacyPolicyPage
+import me.kavishdevar.librepods.presentation.theme.LibrePodsTheme
+import me.kavishdevar.librepods.presentation.theme.NightTheme
+
+class PrivacyPolicyActivity : ComponentActivity() {
+    val appDataRepository by lazy { (application as LibrePodsApplication).appDataRepository }
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        enableEdgeToEdge()
+
+        setContent {
+            val settings by appDataRepository.settings.collectAsState()
+
+            val systemDarkTheme = isSystemInDarkTheme()
+
+            val darkTheme = when (settings.nightMode) {
+                NightTheme.Dark -> true
+                NightTheme.Light -> false
+                NightTheme.System -> systemDarkTheme
+            }
+
+            val view = LocalView.current
+            val window = (view.context as Activity).window
+
+            LaunchedEffect(darkTheme) {
+                WindowCompat.getInsetsController(window, view).isAppearanceLightStatusBars = !darkTheme
+            }
+
+            LibrePodsTheme(
+                designSystem = settings.designSystem,
+                darkTheme = darkTheme
+            ) {
+//                For demo screenshots
+//                val windowInsetsController = WindowCompat.getInsetsController(window, window.decorView)
+//                windowInsetsController.systemBarsBehavior = WindowInsetsControllerCompat.BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE
+//                windowInsetsController.hide(WindowInsetsCompat.Type.statusBars())
+
+                StyledScaffold(
+                    title = stringResource(R.string.privacy_policy),
+                    navigateBack = null
+                ) { topPadding, bottomPadding ->
+                    Column {
+                        Spacer(modifier = Modifier.height(topPadding))
+
+                        Surface(
+                            shape = RoundedCornerShape(52.dp),
+                            modifier = Modifier
+                                .fillMaxSize()
+                                .clip(RoundedCornerShape(52.dp))
+                                .padding(16.dp),
+                            color = MaterialTheme.colorScheme.surfaceContainer
+                        ) {
+                            PrivacyPolicyPage { finish() }
+                        }
+
+                        Spacer(modifier = Modifier.height(bottomPadding))
+                    }
+                }
+            }
+        }
+    }
+}

android/app/src/main/kotlin/me/kavishdevar/librepods/presentation/components/StyledList.kt

@@ -122,12 +122,13 @@ fun StyledListDemo() {
         darkTheme = false
     ) {
         StyledScaffold(
-            title = "StyledListTest"
+            title = "StyledListTest",
-        ) {
+            navigateBack = null
+        ) { topPadding, bottomPadding ->
             Column (
                 modifier = Modifier.padding(horizontal = 12.dp)
             ) {
-                Spacer(modifier = Modifier.height(56.dp))
+                Spacer(modifier = Modifier.height(topPadding))
                 StyledList(
                     title = "hello"
                 ) {
@@ -145,6 +146,7 @@ fun StyledListDemo() {
                         onCheckedChange = { checked.value = it },
                     )
                 }
+                Spacer(modifier = Modifier.height(bottomPadding))
             }
         }
     }

android/app/src/main/kotlin/me/kavishdevar/librepods/presentation/components/StyledListItem.kt

@@ -668,7 +668,7 @@ fun StyledListScope.StyledListItem(
                         Text(
                             text = supportingText,
                             style = if (LocalDesignSystem.current == DesignSystem.Apple && orientation == StyledListItemOrientation.Horizontal) MaterialTheme.typography.bodyMedium else MaterialTheme.typography.bodySmall,
-                            color = if (selected == true) MaterialTheme.colorScheme.onPrimaryContainer.copy(0.7f) else MaterialTheme.colorScheme.onSurface.copy(0.7f), // TODO: move to color scheme
+                            color = if (selected == true && LocalDesignSystem.current == DesignSystem.Material) MaterialTheme.colorScheme.onPrimaryContainer.copy(0.7f) else MaterialTheme.colorScheme.onSurface.copy(0.7f), // TODO: move to color scheme
                         )
                     }
                 } else null,
@@ -805,6 +805,7 @@ private fun StyledListItemContent(
                         }
                     )
                     .pointerInput(Unit) {
+                        if (onClick != null) {
                             detectTapGestures(
                                 onPress = {
                                     if (enabled) {
@@ -820,11 +821,12 @@ private fun StyledListItemContent(
                                                 HapticFeedbackType.ContextClick
                                             )
                                         }
-                                    onClick?.invoke()
+                                        onClick.invoke()
                                     }
                                 }
                             )
                         }
+                    }
                     .heightIn(min = height)
                     .padding(horizontal = 16.dp)
             ) {

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

@@ -18,6 +18,8 @@
 
 package me.kavishdevar.librepods.presentation.components
 
+import android.graphics.RenderEffect
+import android.graphics.Shader
 import androidx.compose.animation.AnimatedVisibility
 import androidx.compose.animation.Crossfade
 import androidx.compose.animation.core.tween
@@ -27,6 +29,7 @@ import androidx.compose.animation.scaleIn
 import androidx.compose.animation.scaleOut
 import androidx.compose.animation.slideInVertically
 import androidx.compose.animation.slideOutVertically
+import androidx.compose.foundation.gestures.awaitFirstDown
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Row
@@ -61,10 +64,17 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
 import androidx.compose.ui.draw.shadow
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.asComposeRenderEffect
+import androidx.compose.ui.graphics.graphicsLayer
 import androidx.compose.ui.graphics.luminance
+import androidx.compose.ui.input.pointer.consumePositionChange
+import androidx.compose.ui.input.pointer.pointerInput
+import androidx.compose.ui.platform.LocalDensity
 import androidx.compose.ui.platform.LocalLayoutDirection
+import androidx.compose.ui.platform.LocalWindowInfo
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.unit.Dp
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.zIndex
 import com.kyant.backdrop.backdrops.LayerBackdrop
@@ -75,6 +85,9 @@ import dev.chrisbanes.haze.hazeEffect
 import dev.chrisbanes.haze.hazeSource
 import dev.chrisbanes.haze.rememberHazeState
 import me.kavishdevar.librepods.presentation.icons.LocalIcons
+import me.kavishdevar.librepods.presentation.navigation.LocalIsCurrentEntry
+import me.kavishdevar.librepods.presentation.navigation.LocalSharedTransitionScope
+import me.kavishdevar.librepods.presentation.navigation.LocalTransitionProgress
 import me.kavishdevar.librepods.presentation.theme.DesignSystem
 import me.kavishdevar.librepods.presentation.theme.LocalDesignSystem
 
@@ -84,11 +97,10 @@ fun StyledScaffold(
     modifier: Modifier = Modifier,
     visible: Boolean = true,
     title: String,
-    showBackButton: Boolean = false,
+    navigateBack: (() -> Unit)?,
-    onNavigateBack: () -> Unit = {},
     actionButtons: List<@Composable (backdrop: LayerBackdrop) -> Unit> = emptyList(),
     snackbarHostState: SnackbarHostState = remember { SnackbarHostState() },
-    content: @Composable () -> Unit
+    content: @Composable (topPadding: Dp, bottomPadding: Dp) -> Unit
 ) {
     val hazeState = rememberHazeState(blurEnabled = true)
 
@@ -105,14 +117,18 @@ fun StyledScaffold(
                     ) {
                         TopAppBar(
                             navigationIcon = {
-                                if (showBackButton) {
+                                if (navigateBack != null) {
                                     Row {
                                         Spacer(modifier = Modifier.width(12.dp))
                                         FilledTonalIconButton(
-                                            onClick = onNavigateBack,
+                                            onClick = navigateBack,
                                             modifier = Modifier
                                                 .minimumInteractiveComponentSize()
-                                                .size(IconButtonDefaults.mediumContainerSize(IconButtonDefaults.IconButtonWidthOption.Narrow)),
+                                                .size(
+                                                    IconButtonDefaults.mediumContainerSize(
+                                                        IconButtonDefaults.IconButtonWidthOption.Narrow
+                                                    )
+                                                ),
                                             shape = IconButtonDefaults.mediumRoundShape
                                         ) {
                                             Icon(
@@ -130,7 +146,7 @@ fun StyledScaffold(
                                         text = it,
                                         maxLines = 1,
                                         overflow = TextOverflow.Ellipsis,
-                                        modifier = Modifier.padding(start = if (showBackButton) 8.dp else 12.dp, end = 12.dp),
+                                        modifier = Modifier.padding(start = if (navigateBack != null) 8.dp else 12.dp, end = 12.dp),
                                         style = MaterialTheme.typography.titleSmall
                                     )
                                 }
@@ -146,15 +162,20 @@ fun StyledScaffold(
                     }
                 },
             ) { paddingValues ->
-                Column(
+                Box(
                     modifier = modifier
-                        .then(if (visible) Modifier.padding(start = paddingValues.calculateStartPadding(LocalLayoutDirection.current), end = paddingValues.calculateEndPadding(LocalLayoutDirection.current)) else Modifier)
+                        .then(
+                            if (visible) Modifier.padding(
+                                start = paddingValues.calculateStartPadding(
+                                    LocalLayoutDirection.current
+                                ),
+                                end = paddingValues.calculateEndPadding(LocalLayoutDirection.current)
+                            ) else Modifier
+                        )
                         .fillMaxSize()
                         .hazeSource(hazeState)
                 ) {
-                    Spacer(modifier = Modifier.height(paddingValues.calculateTopPadding()))
+                    content(paddingValues.calculateTopPadding(), paddingValues.calculateBottomPadding())
-                    content()
-                    Spacer(modifier = Modifier.height(paddingValues.calculateBottomPadding()))
                 }
             }
         }
@@ -173,6 +194,7 @@ fun StyledScaffold(
                     )
             ) { paddingValues ->
                 val topPadding = paddingValues.calculateTopPadding()
+                val bottomPadding = paddingValues.calculateBottomPadding()
                 val startPadding = paddingValues.calculateLeftPadding(LocalLayoutDirection.current)
                 val endPadding = paddingValues.calculateRightPadding(LocalLayoutDirection.current)
 
@@ -184,24 +206,71 @@ fun StyledScaffold(
                 ) {
                     val backdrop = rememberLayerBackdrop()
                     val bgColor = MaterialTheme.colorScheme.surfaceContainer
-                    AnimatedVisibility(
+
-                        visible = showBackButton,
+                    val density = LocalDensity.current
-                        enter = fadeIn() + scaleIn(
+                    val screenWidthPx = with(density) {
-                            initialScale = 0f,
+                        LocalWindowInfo.current.containerDpSize.width.toPx()
-                            animationSpec = tween()
+                    }
-                        ),
+                    val isCurrentEntry = LocalIsCurrentEntry.current
-                        exit = fadeOut() + scaleOut(
+                    val transitionProgress = LocalTransitionProgress.current
-                            targetScale = 0.5f,
+                    val sharedTransitionScope = LocalSharedTransitionScope.current
-                            animationSpec = tween(100)
+
-                        ),
+                    val showBackButton = if (transitionProgress == 0f) navigateBack != null else !isCurrentEntry
+
+                    if (showBackButton) {
+                        with(sharedTransitionScope) {
+                            Box(
                                 modifier = Modifier
                                     .zIndex(3f)
                                     .padding(top = topPadding, start = 8.dp)
                                     .align(Alignment.TopStart)
+                                    .pointerInput(Unit) {
+                                        awaitPointerEventScope {
+                                            while (true) {
+                                                awaitFirstDown(requireUnconsumed = false)
+
+                                                do {
+                                                    val event = awaitPointerEvent()
+
+                                                    event.changes.forEach { change ->
+                                                        change.consumePositionChange()
+                                                    }
+                                                } while (event.changes.any { it.pressed })
+                                            }
+                                        }
+                                    }
+                                    .renderInSharedTransitionScopeOverlay(
+                                        zIndexInOverlay = 3f,
+                                        renderInOverlay = {
+                                            !isCurrentEntry && transitionProgress != 0f
+                                        }
+                                    )
+                                    .graphicsLayer { // AI generated
+                                        if (!isCurrentEntry && navigateBack == null && transitionProgress < 0f) {
+                                            val progress = (-transitionProgress).coerceIn(0f, 1f)
+
+                                            val eased = progress * progress * (3f - 2f * progress)
+
+                                            val scale = 1f - 0.18f * eased
+
+                                            scaleX = scale
+                                            scaleY = scale
+
+                                            alpha = 1f - 0.28f * eased
+
+                                            val blur = 8f * progress
+
+                                            renderEffect = RenderEffect.createBlurEffect(
+                                                blur,
+                                                blur,
+                                                Shader.TileMode.DECAL
+                                            ).asComposeRenderEffect()
+                                        }
+                                    }
                             ) {
                                 StyledIconButton(
-                            onClick = onNavigateBack,
+                                    onClick = { navigateBack?.invoke() },
-                            backdrop = backdrop
+                                    backdrop = backdrop // i know, this doesn't capture what's actually beneath it. but it's going to matter just in the transition.
                                 ) {
                                     Icon(
                                         imageVector = LocalIcons.current.ArrowBack,
@@ -211,6 +280,8 @@ fun StyledScaffold(
                                     )
                                 }
                             }
+                        }
+                    }
 
                     AnimatedVisibility(
                         visible = visible,
@@ -270,6 +341,21 @@ fun StyledScaffold(
                             .zIndex(3f)
                             .padding(top = topPadding, end = 8.dp)
                             .align(Alignment.TopEnd)
+                            .pointerInput(Unit) {
+                                awaitPointerEventScope {
+                                    while (true) {
+                                        awaitFirstDown(requireUnconsumed = false)
+
+                                        do {
+                                            val event = awaitPointerEvent()
+
+                                            event.changes.forEach { change ->
+                                                change.consumePositionChange()
+                                            }
+                                        } while (event.changes.any { it.pressed })
+                                    }
+                                }
+                            }
                     ) {
                         Row{
                             actionButtons.forEach { actionButton ->
@@ -283,7 +369,7 @@ fun StyledScaffold(
                             .hazeSource(hazeState)
                             .fillMaxSize()
                     ) {
-                        content()
+                        content(topPadding + 64.dp, bottomPadding)
                     }
                 }
             }

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

@@ -759,12 +759,13 @@ fun StyledSliderPreview() {
     ) {
         StyledScaffold(
             title = "test",
-        ) {
+            navigateBack = null
+        ) { topPadding, bottomPadding ->
             Column(
                 modifier = Modifier.padding(horizontal = 16.dp),
                 verticalArrangement = Arrangement.spacedBy(16.dp)
             ) {
-                Spacer(modifier = Modifier.height(72.dp))
+                Spacer(modifier = Modifier.height(topPadding))
                 StyledSlider(
                     value = a.floatValue,
                     onValueChange = {
@@ -803,6 +804,7 @@ fun StyledSliderPreview() {
                     independent = true,
                     description = stringResource(R.string.adaptive_audio_description),
                 )
+                Spacer(modifier = Modifier.height(bottomPadding))
             }
         }
     }

android/app/src/main/kotlin/me/kavishdevar/librepods/presentation/icons/AppleIcons.kt

@@ -1248,4 +1248,54 @@ object AppleIcons: IconSet {
 
     override val CircleDotted: ImageVector
         get() = CommonIcons.CircleDotted
+
+    override val VitalSigns: ImageVector
+        get() = WaveFormPathEcg
+    val WaveFormPathEcg: ImageVector
+        get() {
+            val current = _waveformPathEcg
+            if (current != null) return current
+
+            return ImageVector.Builder(
+                name = "WaveformPathEcg",
+                defaultWidth = 62.78099822998047.dp,
+                defaultHeight = 67.31999969482422.dp,
+                viewportWidth = 62.781f,
+                viewportHeight = 67.32f,
+            ).apply {
+                path(
+                    fill = SolidColor(Color(0xFFFFFFFF)),
+                    fillAlpha = 0.85f,
+                ) {
+                    moveTo(x = 2.25f, y = 39.7f)
+                    horizontalLineToRelative(dx = 13.84f)
+                    quadToRelative(dx1 = 2.1f, dy1 = 0.0f, dx2 = 2.57f, dy2 = -1.87f)
+                    lineToRelative(dx = 4.84f, dy = -22.25f)
+                    horizontalLineToRelative(dx = -0.28f)
+                    lineToRelative(dx = 8.34f, dy = 50.06f)
+                    curveToRelative(dx1 = 0.38f, dy1 = 2.25f, dx2 = 3.85f, dy2 = 2.22f, dx3 = 4.28f, dy3 = 0.0f)
+                    lineToRelative(dx = 8.07f, dy = -37.75f)
+                    lineToRelative(dx = -0.25f, dy = -0.03f)
+                    lineToRelative(dx = 2.0f, dy = 9.72f)
+                    curveToRelative(dx1 = 0.28f, dy1 = 1.44f, dx2 = 1.09f, dy2 = 2.13f, dx3 = 2.56f, dy3 = 2.13f)
+                    horizontalLineToRelative(dx = 12.12f)
+                    arcToRelative(a = 2.2f, b = 2.2f, theta = 0.0f, isMoreThanHalf = true, isPositiveArc = false, dx1 = 0.0f, dy1 = -4.4f)
+                    horizontalLineTo(x = 48.66f)
+                    lineToRelative(dx = 0.75f, dy = 0.46f)
+                    lineToRelative(dx = -3.72f, dy = -16.38f)
+                    curveToRelative(dx1 = -0.47f, dy1 = -2.18f, dx2 = -3.69f, dy2 = -2.15f, dx3 = -4.22f, dy3 = 0.1f)
+                    lineTo(x = 33.4f, y = 55.43f)
+                    horizontalLineToRelative(dx = 0.37f)
+                    lineToRelative(dx = -8.37f, dy = -50.7f)
+                    curveToRelative(dx1 = -0.35f, dy1 = -2.18f, dx2 = -3.53f, dy2 = -2.24f, dx3 = -4.03f, dy3 = 0.0f)
+                    lineToRelative(dx = -6.72f, dy = 31.04f)
+                    lineToRelative(dx = 0.4f, dy = -0.47f)
+                    horizontalLineTo(x = 2.25f)
+                    curveToRelative(dx1 = -1.28f, dy1 = 0.0f, dx2 = -2.25f, dy2 = 1.0f, dx3 = -2.25f, dy3 = 2.22f)
+                    arcToRelative(a = 2.2f, b = 2.2f, theta = 0.0f, isMoreThanHalf = false, isPositiveArc = false, dx1 = 2.25f, dy1 = 2.19f)
+                }
+            }.build().also { _waveformPathEcg = it }
+        }
+
+    private var _waveformPathEcg: ImageVector? = null
 }

android/app/src/main/kotlin/me/kavishdevar/librepods/presentation/icons/IconSet.kt

@@ -55,6 +55,8 @@ interface IconSet {
 
     val CircleDotted: ImageVector
 
+    val VitalSigns: ImageVector
+
     /*
      * AirPods Icons
      */
@@ -155,6 +157,7 @@ interface IconSet {
             "BoltCircle" to BoltCircle,
             "Circle" to Circle,
             "CircleDotted" to CircleDotted,
+            "VitalSign" to VitalSigns,
 
             "AirPods1" to AirPods1,
             "AirPods1Case" to AirPods1Case,

android/app/src/main/kotlin/me/kavishdevar/librepods/presentation/icons/MaterialIcons.kt

@@ -1658,4 +1658,69 @@ object MaterialIcons: IconSet {
 
     override val CircleDotted: ImageVector
         get() = CommonIcons.CircleDotted
+
+    override val VitalSigns: ImageVector
+        get() {
+            if (_vital_signs != null) {
+                return _vital_signs!!
+            }
+            _vital_signs =
+                ImageVector.Builder(
+                    name = "vital_signs",
+                    defaultWidth = 24.dp,
+                    defaultHeight = 24.dp,
+                    viewportWidth = 24f,
+                    viewportHeight = 24f,
+                )
+                    .apply {
+                        path(
+                            fill = SolidColor(Color.Black),
+                            fillAlpha = 1f,
+                            stroke = null,
+                            strokeAlpha = 1f,
+                            strokeLineWidth = 1f,
+                            strokeLineCap = StrokeCap.Butt,
+                            strokeLineJoin = StrokeJoin.Bevel,
+                            strokeLineMiter = 1f,
+                            pathFillType = PathFillType.Companion.NonZero,
+                        ) {
+                            moveTo(8.15f, 19.73f)
+                            quadTo(7.78f, 19.45f, 7.6f, 19.02f)
+                            lineTo(5.3f, 13f)
+                            horizontalLineTo(2f)
+                            quadTo(1.58f, 13f, 1.29f, 12.71f)
+                            quadTo(1f, 12.43f, 1f, 12f)
+                            reflectiveQuadTo(1.29f, 11.29f)
+                            reflectiveQuadTo(2f, 11f)
+                            horizontalLineTo(6f)
+                            quadToRelative(0.33f, 0f, 0.56f, 0.17f)
+                            reflectiveQuadToRelative(0.36f, 0.47f)
+                            lineTo(9f, 17.1f)
+                            lineTo(13.6f, 4.97f)
+                            quadToRelative(0.17f, -0.43f, 0.55f, -0.7f)
+                            reflectiveQuadTo(15f, 4f)
+                            reflectiveQuadToRelative(0.85f, 0.27f)
+                            reflectiveQuadToRelative(0.55f, 0.7f)
+                            lineTo(18.7f, 11f)
+                            horizontalLineTo(22f)
+                            quadToRelative(0.43f, 0f, 0.71f, 0.29f)
+                            reflectiveQuadTo(23f, 12f)
+                            reflectiveQuadToRelative(-0.29f, 0.71f)
+                            reflectiveQuadTo(22f, 13f)
+                            horizontalLineTo(18f)
+                            quadToRelative(-0.32f, 0f, -0.56f, -0.18f)
+                            reflectiveQuadTo(17.08f, 12.35f)
+                            lineTo(15f, 6.9f)
+                            lineTo(10.4f, 19.02f)
+                            quadToRelative(-0.17f, 0.43f, -0.55f, 0.7f)
+                            reflectiveQuadTo(9f, 20f)
+                            reflectiveQuadTo(8.15f, 19.73f)
+                            close()
+                        }
+                    }
+                    .build()
+            return _vital_signs!!
+        }
+
+    private var _vital_signs: ImageVector? = null
 }

android/app/src/main/kotlin/me/kavishdevar/librepods/presentation/navigation/AppNavGraph.kt

@@ -1,656 +1,112 @@
 package me.kavishdevar.librepods.presentation.navigation
 
 import android.annotation.SuppressLint
-import androidx.activity.BackEventCompat.Companion.EDGE_LEFT
+import androidx.compose.animation.EnterTransition
+import androidx.compose.animation.ExitTransition
 import androidx.compose.animation.SharedTransitionLayout
-import androidx.compose.animation.core.tween
-import androidx.compose.animation.fadeIn
-import androidx.compose.animation.fadeOut
-import androidx.compose.animation.scaleOut
-import androidx.compose.animation.slideInHorizontally
-import androidx.compose.animation.slideOutHorizontally
 import androidx.compose.animation.togetherWith
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.CompositionLocalProvider
+import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.State
 import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.snapshots.SnapshotStateList
+import androidx.compose.runtime.remember
 import androidx.compose.ui.platform.LocalContext
-import androidx.lifecycle.viewmodel.compose.viewModel
+import androidx.navigation3.runtime.NavBackStack
-import androidx.lifecycle.viewmodel.initializer
-import androidx.lifecycle.viewmodel.viewModelFactory
 import androidx.navigation3.runtime.NavEntry
 import androidx.navigation3.ui.NavDisplay
-import dev.chrisbanes.haze.materials.ExperimentalHazeMaterialsApi
+import kotlinx.coroutines.CompletableDeferred
+import kotlinx.coroutines.channels.Channel
 import me.kavishdevar.librepods.LibrePodsApplication
 import me.kavishdevar.librepods.bluetooth.MacAddress
-import me.kavishdevar.librepods.bluetooth.aacp.types.ControlCommandIdentifier
-import me.kavishdevar.librepods.data.updates.updates
 import me.kavishdevar.librepods.devices.AppleDevice
 import me.kavishdevar.librepods.devices.ConnectionState
 import me.kavishdevar.librepods.devices.Device
-import me.kavishdevar.librepods.presentation.screens.AppSettingsScreen
-import me.kavishdevar.librepods.presentation.screens.BLESettingsScreenRoute
-import me.kavishdevar.librepods.presentation.screens.DeviceListRoute
-import me.kavishdevar.librepods.presentation.screens.OpenSourceLicensesScreen
-import me.kavishdevar.librepods.presentation.screens.PurchaseScreen
-import me.kavishdevar.librepods.presentation.screens.ReleaseNotesScreen
-import me.kavishdevar.librepods.presentation.screens.TroubleshootingScreen
-import me.kavishdevar.librepods.presentation.screens.apple.AccessibilitySettingsScreen
-import me.kavishdevar.librepods.presentation.screens.apple.AdaptiveStrengthScreen
-import me.kavishdevar.librepods.presentation.screens.apple.AirPodsSettingsRoute
-import me.kavishdevar.librepods.presentation.screens.apple.CallControlScreen
-import me.kavishdevar.librepods.presentation.screens.apple.DebugRoute
-import me.kavishdevar.librepods.presentation.screens.apple.EqualizerRoute
-import me.kavishdevar.librepods.presentation.screens.apple.HeadTrackingScreen
-import me.kavishdevar.librepods.presentation.screens.apple.HearingAidAdjustmentsScreen
-import me.kavishdevar.librepods.presentation.screens.apple.HearingAidScreen
-import me.kavishdevar.librepods.presentation.screens.apple.HearingProtectionScreen
-import me.kavishdevar.librepods.presentation.screens.apple.LongPress
-import me.kavishdevar.librepods.presentation.screens.apple.MicrophoneSettingsRoute
-import me.kavishdevar.librepods.presentation.screens.apple.RecordingScreenRoute
-import me.kavishdevar.librepods.presentation.screens.apple.RenameScreen
-import me.kavishdevar.librepods.presentation.screens.apple.TransparencySettingsScreen
-import me.kavishdevar.librepods.presentation.screens.apple.UpdateHearingTestRoute
-import me.kavishdevar.librepods.presentation.screens.apple.VersionScreen
-import me.kavishdevar.librepods.presentation.screens.onboarding.OnboardingScreen
-import me.kavishdevar.librepods.presentation.theme.DesignSystem
-import me.kavishdevar.librepods.presentation.theme.LocalDesignSystem
-import me.kavishdevar.librepods.presentation.viewmodel.AppSettingsViewModel
-import me.kavishdevar.librepods.presentation.viewmodel.AppleViewModel
-import me.kavishdevar.librepods.presentation.viewmodel.PurchaseViewModel
-import me.kavishdevar.librepods.repository.RecordingRepository
 
-@OptIn(ExperimentalHazeMaterialsApi::class)
 @Composable
 fun AppNavGraph(
+    backStack: NavBackStack<Screen>,
+    devicesState: State<Map<MacAddress, Device<*, *, *>>>,
     showReleaseNotes: Boolean = false,
     updatesShown: () -> Unit = {},
     onboardingComplete: () -> Unit = {},
-    backStack: SnapshotStateList<Screen>,
-    devicesState: State<Map<MacAddress, Device<*, *, *>>>
 ) {
+    val backRequests = remember { Channel<CompletableDeferred<Unit>>(Channel.BUFFERED) }
+
     val devices by devicesState
-
-    val navigate: (Screen) -> Unit = { screen ->
-        backStack.add(screen)
-    }
-
-    fun navigateToPurchase() {
-        navigate(Screen.Purchase)
-    }
-
     val context = LocalContext.current
 
     val appDataRepository by lazy { (context.applicationContext as LibrePodsApplication).appDataRepository }
-    val recordingRepository = RecordingRepository(context)
+    val recordingRepository by lazy { (context.applicationContext as LibrePodsApplication).recordingRepository }
+    val heartRateRepository by lazy { (context.applicationContext as LibrePodsApplication).heartRateRepository }
 
-    val currentDevice: Device<*, *, *>? =
+    val currentDevice: Device<*, *, *>? = devices[backStack.lastOrNull()?.let { (it as? DeviceScreen)?.macAddress }]
-        devices[backStack.lastOrNull()?.let { (it as? DeviceScreen)?.macAddress }]
 
     @SuppressLint("UnrememberedMutableState")
-    val currentConnectionState by (currentDevice as? AppleDevice)?.connectionState?.collectAsState()
+    val currentConnectionState by (currentDevice as? AppleDevice)?.connectionState?.collectAsState()?: mutableStateOf(ConnectionState.DISCONNECTED)
-        ?: mutableStateOf(ConnectionState.DISCONNECTED)
 
+    LaunchedEffect(currentConnectionState) {
         if (currentConnectionState == ConnectionState.DISCONNECTED) {
-        // not sure how we will be able to navigate to another device from one device, but just in case we had two different devices in the backstack, we will remove DeviceScreens only of the disconnected device from the backstack
+            while (
-        while (backStack.isNotEmpty() && backStack.last() is DeviceScreen && (backStack.last() as DeviceScreen).macAddress == currentDevice?.macAddress) {
+                backStack.size > 1 &&
+                backStack.lastOrNull() is DeviceScreen
+            ) {
+                val completed = CompletableDeferred<Unit>()
+                backRequests.send(completed)
+                completed.await()
+            }
+        }
+    }
+
+    val appSettings by appDataRepository.settings.collectAsState()
+
+    val sceneStrategy = remember(appSettings.swipeAnywhereForBack) {
+        SwipeBackSceneStrategy<Screen>(
+            enabled = appSettings.swipeAnywhereForBack,
+            backRequests = backRequests,
+            onDismiss = {
+                if (backStack.size > 1) {
                     backStack.removeAt(backStack.lastIndex)
                 }
             }
-
+        )
-    val m3eEnabled = LocalDesignSystem.current == DesignSystem.Material
+    }
 
     SharedTransitionLayout {
+        CompositionLocalProvider(
+            LocalSharedTransitionScope provides this,
+        ) {
             NavDisplay(
                 sharedTransitionScope = this,
                 backStack = backStack,
+                sceneStrategies = listOf(sceneStrategy),
                 onBack = {
                     if (backStack.size > 1) {
                         backStack.removeAt(backStack.lastIndex)
                     }
                 },
                 entryProvider = { screen ->
-                when (screen) {
-                    Screen.Onboarding ->
                     NavEntry(screen) {
-                            OnboardingScreen {
+                        RenderScreenContent(
-                                onboardingComplete()
+                            screen = screen,
-                                if (showReleaseNotes) navigate(Screen.ReleaseNotes) else navigate(
+                            backStack = backStack,
-                                    Screen.DeviceList
+                            backRequests = backRequests,
-                                )
-                                backStack.remove(screen)
-                            }
-                        }
-
-                    Screen.DeviceList ->
-                        NavEntry(screen) {
-                            DeviceListRoute(
                             devices = devices,
-                                navigateToDevice = { macAddress ->
-                                    when (devices[macAddress]) {
-                                        is AppleDevice -> navigate(Screen.AppleScreen(macAddress))
-                                        else -> {}
-                                    }
-                                }
-                            )
-                        }
-
-                    is Screen.AppleScreen ->
-                        NavEntry(screen) {
-                            val device = devices[screen.macAddress] as? AppleDevice ?: return@NavEntry
-
-                            val factory = viewModelFactory {
-                                initializer {
-                                    AppleViewModel(
-                                        device = device,
-                                        recordingRepository = recordingRepository,
-                                    )
-                                }
-                            }
-
-                            val appleViewModel: AppleViewModel = viewModel(key = "${screen.macAddress.value}:${device.connectionNumber}", factory = factory)
-
-                            AirPodsSettingsRoute(
-                                viewModel = appleViewModel,
-                                navigateToRename = { navigate(Screen.Rename(screen.macAddress)) },
-                                navigateToHearingProtection = {
-                                    navigate(
-                                        Screen.HearingProtection(
-                                            screen.macAddress
-                                        )
-                                    )
-                                },
-                                navigateToHearingAid = { navigate(Screen.HearingAid(screen.macAddress)) },
-                                navigateToLeftLongPress = {
-                                    navigate(
-                                        Screen.LongPress(screen.macAddress, "Left")
-                                    )
-                                },
-                                navigateToRightLongPress = {
-                                    navigate(
-                                        Screen.LongPress(screen.macAddress, "Right")
-                                    )
-                                },
-                                navigateToPurchase = { navigate(Screen.Purchase) },
-                                navigateToAdaptiveStrength = {
-                                    navigate(
-                                        Screen.AdaptiveStrength(
-                                            screen.macAddress
-                                        )
-                                    )
-                                },
-                                navigateToEqualizer = { navigate(Screen.Equalizer(screen.macAddress)) },
-                                navigateToHeadTracking = { navigate(Screen.HeadTracking(screen.macAddress)) },
-                                navigateToAccessibility = { navigate(Screen.Accessibility(screen.macAddress)) },
-                                navigateToVersion = { navigate(Screen.VersionInfo(screen.macAddress)) },
-                                navigateToCallControlScreen = {
-                                    navigate(
-                                        Screen.CallControl(
-                                            screen.macAddress,
-                                            it
-                                        )
-                                    )
-                                },
-                                navigateToMicrophoneSettings = {
-                                    navigate(
-                                        Screen.MicrophoneSettings(
-                                            screen.macAddress
-                                        )
-                                    )
-                                },
-                                navigateToRecordingScreen = { navigate(Screen.Recording(screen.macAddress)) },
-                                navigateToDebugScreen = { navigate(Screen.Debug(screen.macAddress)) }
-                            )
-                        }
-
-                    is Screen.Rename ->
-                        NavEntry(screen) {
-                            val device = devices[screen.macAddress] as? AppleDevice ?: return@NavEntry
-
-                            val factory = viewModelFactory {
-                                initializer {
-                                    AppleViewModel(
-                                        device = device,
-                                        recordingRepository = recordingRepository,
-                                    )
-                                }
-                            }
-
-                            val appleViewModel: AppleViewModel = viewModel(key = "${screen.macAddress.value}:${device.connectionNumber}", factory = factory)
-
-                            RenameScreen(appleViewModel)
-                        }
-
-                    Screen.AppSettings ->
-                        NavEntry(screen) {
-                            val factory = viewModelFactory {
-                                initializer {
-                                    AppSettingsViewModel(
                             appDataRepository = appDataRepository,
-                                    )
-                                }
-                            }
-                            val appSettingsViewModel: AppSettingsViewModel = viewModel(factory = factory)
-
-                            AppSettingsScreen(
-                                viewModel = appSettingsViewModel,
-                                navigateToPurchase = ::navigateToPurchase,
-                                navigateToTroubleshooting = { navigate(Screen.Troubleshooting) },
-                                navigateToOpenSourceLicenses = { navigate(Screen.OpenSourceLicenses) },
-                                navigateToReleaseNotesScreen = { navigate(Screen.ReleaseNotes) },
-                                navigateToBleSettingsScreen = { navigate(Screen.BLESettings) }
-                            )
-                        }
-
-                    Screen.Troubleshooting ->
-                        NavEntry(screen) {
-                            TroubleshootingScreen()
-                        }
-
-                    is Screen.HeadTracking ->
-                        NavEntry(screen) {
-                            val device = devices[screen.macAddress] as? AppleDevice ?: return@NavEntry
-
-                            val factory = viewModelFactory {
-                                initializer {
-                                    AppleViewModel(
-                                        device = device,
                             recordingRepository = recordingRepository,
+                            heartRateRepository = heartRateRepository,
+                            showReleaseNotes = showReleaseNotes,
+                            updatesShown = updatesShown,
+                            onboardingComplete = onboardingComplete
                         )
                     }
-                            }
-
-                            val appleViewModel: AppleViewModel = viewModel(key = "${screen.macAddress.value}:${device.connectionNumber}", factory = factory)
-
-                            HeadTrackingScreen(appleViewModel, ::navigateToPurchase)
-                        }
-
-                    is Screen.Accessibility ->
-                        NavEntry(screen) {
-                            val device = devices[screen.macAddress] as? AppleDevice ?: return@NavEntry
-                            val factory = viewModelFactory {
-                                initializer {
-                                    AppleViewModel(
-                                        device = device,
-                                        recordingRepository = recordingRepository,
-                                    )
-                                }
-                            }
-
-                            val appleViewModel: AppleViewModel = viewModel(key = "${screen.macAddress.value}:${device.connectionNumber}", factory = factory)
-
-                            AccessibilitySettingsScreen(
-                                viewModel = appleViewModel,
-                                navigateToPurchase = ::navigateToPurchase,
-                                navigateToTransparencyCustomization = {
-                                    navigate(
-                                        Screen.TransparencyCustomization(
-                                            screen.macAddress
-                                        )
-                                    )
-                                }
-                            )
-                        }
-
-                    is Screen.TransparencyCustomization ->
-                        NavEntry(screen) {
-                            val device = devices[screen.macAddress] as? AppleDevice ?: return@NavEntry
-
-                            val factory = viewModelFactory {
-                                initializer {
-                                    AppleViewModel(
-                                        device = device,
-                                        recordingRepository = recordingRepository,
-                                    )
-                                }
-                            }
-
-                            val appleViewModel: AppleViewModel = viewModel(key = "${screen.macAddress.value}:${device.connectionNumber}", factory = factory)
-
-                            TransparencySettingsScreen(appleViewModel)
-                        }
-
-                    is Screen.HearingAid ->
-                        NavEntry(screen) {
-                            val device = devices[screen.macAddress] as? AppleDevice ?: return@NavEntry
-
-                            val factory = viewModelFactory {
-                                initializer {
-                                    AppleViewModel(
-                                        device = device,
-                                        recordingRepository = recordingRepository,
-                                    )
-                                }
-                            }
-
-                            val appleViewModel: AppleViewModel = viewModel(key = "${screen.macAddress.value}:${device.connectionNumber}", factory = factory)
-
-                            HearingAidScreen(
-                                viewModel = appleViewModel,
-                                onNavigateHearingAidAdjustments = {
-                                    navigate(
-                                        Screen.HearingAidAdjustments(
-                                            screen.macAddress
-                                        )
-                                    )
-                                },
-                                onNavigateHearingTest = { navigate(Screen.UpdateHearingTest(screen.macAddress)) },
-                            )
-                        }
-
-                    is Screen.HearingAidAdjustments ->
-                        NavEntry(screen) {
-                            val device = devices[screen.macAddress] as? AppleDevice ?: return@NavEntry
-
-                            val factory = viewModelFactory {
-                                initializer {
-                                    AppleViewModel(
-                                        device = device,
-                                        recordingRepository = recordingRepository,
-                                    )
-                                }
-                            }
-
-                            val appleViewModel: AppleViewModel = viewModel(key = "${screen.macAddress.value}:${device.connectionNumber}", factory = factory)
-
-                            HearingAidAdjustmentsScreen(appleViewModel)
-                        }
-
-                    is Screen.AdaptiveStrength ->
-                        NavEntry(screen) {
-                            val device = devices[screen.macAddress] as? AppleDevice ?: return@NavEntry
-
-                            val factory = viewModelFactory {
-                                initializer {
-                                    AppleViewModel(
-                                        device = device,
-                                        recordingRepository = recordingRepository,
-                                    )
-                                }
-                            }
-
-                            val appleViewModel: AppleViewModel = viewModel(key = "${screen.macAddress.value}:${device.connectionNumber}", factory = factory)
-
-                            AdaptiveStrengthScreen(appleViewModel, ::navigateToPurchase)
-                        }
-
-//                Screen.CameraControl ->
-//                    NavEntry(screen) {
-//                        CameraControlScreen(AppleViewModel)
-//                    }
-
-                    Screen.OpenSourceLicenses ->
-                        NavEntry(screen) {
-                            OpenSourceLicensesScreen()
-                        }
-
-                    is Screen.UpdateHearingTest ->
-                        NavEntry(screen) {
-                            val device = devices[screen.macAddress] as? AppleDevice ?: return@NavEntry
-
-                            val factory = viewModelFactory {
-                                initializer {
-                                    AppleViewModel(
-                                        device = device,
-                                        recordingRepository = recordingRepository,
-                                    )
-                                }
-                            }
-
-                            val appleViewModel: AppleViewModel = viewModel(key = "${screen.macAddress.value}:${device.connectionNumber}", factory = factory)
-
-                            UpdateHearingTestRoute(appleViewModel)
-                        }
-
-                    is Screen.VersionInfo ->
-                        NavEntry(screen) {
-                            val device = devices[screen.macAddress] as? AppleDevice ?: return@NavEntry
-
-                            val factory = viewModelFactory {
-                                initializer {
-                                    AppleViewModel(
-                                        device = device,
-                                        recordingRepository = recordingRepository,
-                                    )
-                                }
-                            }
-
-                            val appleViewModel: AppleViewModel = viewModel(key = "${screen.macAddress.value}:${device.connectionNumber}", factory = factory)
-
-                            VersionScreen(appleViewModel)
-                        }
-
-                    is Screen.HearingProtection ->
-                        NavEntry(screen) {
-                            val device = devices[screen.macAddress] as? AppleDevice ?: return@NavEntry
-
-                            val factory = viewModelFactory {
-                                initializer {
-                                    AppleViewModel(
-                                        device = device,
-                                        recordingRepository = recordingRepository,
-                                    )
-                                }
-                            }
-
-                            val appleViewModel: AppleViewModel = viewModel(key = "${screen.macAddress.value}:${device.connectionNumber}", factory = factory)
-
-                            HearingProtectionScreen(
-                                viewModel = appleViewModel,
-                                navigateToPurchase = ::navigateToPurchase
-                            )
-                        }
-
-                    is Screen.Purchase ->
-                        NavEntry(screen) {
-                            val vm: PurchaseViewModel = viewModel()
-                            PurchaseScreen(vm, backStack)
-                        }
-
-                    is Screen.Equalizer ->
-                        NavEntry(screen) {
-                            val device = devices[screen.macAddress] as? AppleDevice ?: return@NavEntry
-
-                            val factory = viewModelFactory {
-                                initializer {
-                                    AppleViewModel(
-                                        device = device,
-                                        recordingRepository = recordingRepository,
-                                    )
-                                }
-                            }
-
-                            val appleViewModel: AppleViewModel = viewModel(key = "${screen.macAddress.value}:${device.connectionNumber}", factory = factory)
-
-                            EqualizerRoute(appleViewModel)
-                        }
-
-                    is Screen.LongPress ->
-                        NavEntry(screen) {
-                            val device = devices[screen.macAddress] as? AppleDevice ?: return@NavEntry
-
-                            val factory = viewModelFactory {
-                                initializer {
-                                    AppleViewModel(
-                                        device = device,
-                                        recordingRepository = recordingRepository,
-                                    )
-                                }
-                            }
-
-                            val appleViewModel: AppleViewModel = viewModel(key = "${screen.macAddress.value}:${device.connectionNumber}", factory = factory)
-
-                            LongPress(
-                                viewModel = appleViewModel,
-                                name = screen.bud,
-                                navigateToPurchase = ::navigateToPurchase
-                            )
-                        }
-
-                    is Screen.CallControl ->
-                        NavEntry(screen) {
-                            val device = devices[screen.macAddress] as? AppleDevice ?: return@NavEntry
-
-                            val factory = viewModelFactory {
-                                initializer {
-                                    AppleViewModel(
-                                        device = device,
-                                        recordingRepository = recordingRepository,
-                                    )
-                                }
-                            }
-
-                            val appleViewModel: AppleViewModel = viewModel(key = "${screen.macAddress.value}:${device.connectionNumber}", factory = factory)
-
-                            CallControlScreen(
-                                viewModel = appleViewModel,
-                                action = screen.action,
-                                onCallControlValueChanged = { flipped ->
-                                    device.setControlCommand(
-                                        ControlCommandIdentifier.CALL_MANAGEMENT_CONFIG,
-                                        if (flipped) byteArrayOf(0x00, 0x02) else byteArrayOf(
-                                            0x00,
-                                            0x03
-                                        )
-                                    )
-                                }
-                            )
-                        }
-
-                    is Screen.MicrophoneSettings ->
-                        NavEntry(screen) {
-                            val device = devices[screen.macAddress] as? AppleDevice ?: return@NavEntry
-
-                            val factory = viewModelFactory {
-                                initializer {
-                                    AppleViewModel(
-                                        device = device,
-                                        recordingRepository = recordingRepository,
-                                    )
-                                }
-                            }
-
-                            val appleViewModel: AppleViewModel = viewModel(key = "${screen.macAddress.value}:${device.connectionNumber}", factory = factory)
-
-                            MicrophoneSettingsRoute(viewModel = appleViewModel)
-                        }
-
-                    is Screen.ReleaseNotes ->
-                        NavEntry(screen) {
-                            ReleaseNotesScreen(
-                                updates = updates,
-                                releaseNotesShown = {
-                                    if (showReleaseNotes) {
-                                        navigate(Screen.DeviceList)
-                                        backStack.remove(screen)
-                                        updatesShown()
-                                    } else {
-                                        backStack.removeAt(backStack.lastIndex)
-                                    }
-                                }
-                            )
-                        }
-
-                    is Screen.Recording ->
-                        NavEntry(screen) {
-                            val device = devices[screen.macAddress] as? AppleDevice ?: return@NavEntry
-
-                            val factory = viewModelFactory {
-                                initializer {
-                                    AppleViewModel(
-                                        device = device,
-                                        recordingRepository = recordingRepository,
-                                    )
-                                }
-                            }
-
-                            val appleViewModel: AppleViewModel = viewModel(key = "${screen.macAddress.value}:${device.connectionNumber}", factory = factory)
-
-                            RecordingScreenRoute(appleViewModel)
-                        }
-
-                    is Screen.Debug ->
-                        NavEntry(screen) {
-                            val device = devices[screen.macAddress] as? AppleDevice ?: return@NavEntry
-
-                            val factory = viewModelFactory {
-                                initializer {
-                                    AppleViewModel(
-                                        device = device,
-                                        recordingRepository = recordingRepository,
-                                    )
-                                }
-                            }
-
-                            val appleViewModel: AppleViewModel = viewModel(key = "${screen.macAddress.value}:${device.connectionNumber}", factory = factory)
-
-                            DebugRoute(appleViewModel)
-                        }
-
-                    is Screen.BLESettings ->
-                        NavEntry(screen) {
-                            val factory = viewModelFactory {
-                                initializer {
-                                    AppSettingsViewModel(
-                                        appDataRepository = appDataRepository,
-                                    )
-                                }
-                            }
-                            val appSettingsViewModel: AppSettingsViewModel = viewModel(factory = factory)
-
-                            BLESettingsScreenRoute(
-                                viewModel = appSettingsViewModel
-                            )
-                        }
-                }
                 },
-            transitionSpec = {
+                transitionSpec = { EnterTransition.None togetherWith ExitTransition.None },
-                slideInHorizontally { it } togetherWith slideOutHorizontally { -it / 4 }
+                popTransitionSpec = { EnterTransition.None togetherWith ExitTransition.None },
-            },
+                predictivePopTransitionSpec = { EnterTransition.None togetherWith ExitTransition.None }
-            popTransitionSpec = {
-                slideInHorizontally { -it / 4 } togetherWith slideOutHorizontally { it }
-            },
-            predictivePopTransitionSpec = { swipeEdge ->
-                if (m3eEnabled) {
-                    val enterOffset: (Int) -> Int =
-                        if (swipeEdge == EDGE_LEFT) {
-                            { -it / 6 }
-                        } else {
-                            { it / 6 }
-                        }
-
-                    val exitOffset: (Int) -> Int =
-                        if (swipeEdge == EDGE_LEFT) {
-                            { it / 8 }
-                        } else {
-                            { -it / 8 }
-                        }
-
-                    fadeIn(
-                        animationSpec = tween(250)
-                    ) +
-                        slideInHorizontally(
-                            initialOffsetX = enterOffset,
-                            animationSpec = tween(250)
-                        ) togetherWith
-                        fadeOut(
-                            targetAlpha = 0.75f,
-                            animationSpec = tween(250)
-                        ) +
-                        scaleOut(
-                            targetScale = 0.85f,
-                            animationSpec = tween(250)
-                        ) +
-                        slideOutHorizontally(
-                            targetOffsetX = exitOffset,
-                            animationSpec = tween(250)
             )
-                } else {
-                    slideInHorizontally { -it / 4 } togetherWith slideOutHorizontally { it }
         }
-            },
-        )
     }
 }

android/app/src/main/kotlin/me/kavishdevar/librepods/presentation/navigation/NavigationRoot.kt

@@ -1,35 +1,26 @@
 package me.kavishdevar.librepods.presentation.navigation
 
-import androidx.compose.foundation.layout.size
-import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.filled.PlayArrow
-import androidx.compose.material.icons.outlined.Settings
-import androidx.compose.material3.FilledTonalIconButton
-import androidx.compose.material3.FilledTonalIconToggleButton
-import androidx.compose.material3.Icon
-import androidx.compose.material3.IconButtonDefaults
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.minimumInteractiveComponentSize
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.State
 import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableStateListOf
 import androidx.compose.runtime.remember
-import androidx.compose.ui.Modifier
+import androidx.compose.runtime.saveable.rememberSerializable
-import androidx.compose.ui.res.stringResource
+import androidx.navigation3.runtime.NavBackStack
-import androidx.compose.ui.unit.dp
+import kotlinx.coroutines.flow.MutableSharedFlow
-import com.kyant.backdrop.backdrops.LayerBackdrop
+import kotlinx.serialization.serializer
-import me.kavishdevar.librepods.R
 import me.kavishdevar.librepods.bluetooth.MacAddress
 import me.kavishdevar.librepods.devices.AppleDevice
+import me.kavishdevar.librepods.devices.ConnectionState
 import me.kavishdevar.librepods.devices.Device
-import me.kavishdevar.librepods.presentation.components.StyledIconButton
+
-import me.kavishdevar.librepods.presentation.components.StyledScaffold
+@Composable
-import me.kavishdevar.librepods.presentation.icons.LocalIcons
+fun rememberScreenNavBackStack(vararg elements: Screen): NavBackStack<Screen> {
-import me.kavishdevar.librepods.presentation.icons.MaterialIcons
+    return rememberSerializable(serializer = serializer()) {
-import me.kavishdevar.librepods.presentation.theme.DesignSystem
+        NavBackStack(*elements)
-import me.kavishdevar.librepods.presentation.theme.LocalDesignSystem
+    }
+}
 
 @Composable
 fun NavigationRoot(
@@ -41,133 +32,33 @@ fun NavigationRoot(
 ) {
     val devices by devicesState
 
-    val backStack = remember {
+    val backStack = rememberScreenNavBackStack(
-        mutableStateListOf(
         when {
             showOnboarding -> Screen.Onboarding
             showReleaseNotes -> Screen.ReleaseNotes
             else -> Screen.DeviceList
         }
     )
+
+    val connectedDevice = devices.values.firstOrNull { it.connectionState.collectAsState().value == ConnectionState.CONNECTED }
+
+    LaunchedEffect(connectedDevice) {
+        if (connectedDevice != null) {
+            val targetScreen = when (connectedDevice) {
+                is AppleDevice -> Screen.AppleScreen(connectedDevice.macAddress)
             }
 
-    val currentScreen = backStack.last()
+            if (targetScreen !in backStack) {
-
+                backStack.add(targetScreen)
-    val m3eEnabled = LocalDesignSystem.current == DesignSystem.Material
+            }
-
+        }
-    val title = when (currentScreen) {
-        Screen.Onboarding -> ""
-        Screen.DeviceList -> stringResource(R.string.app_name)
-        is Screen.AppleScreen -> devices[currentScreen.macAddress]?.metadata?.collectAsState()?.value?.name ?: currentScreen.macAddress.value
-        is Screen.Accessibility -> stringResource(R.string.accessibility)
-        is Screen.AdaptiveStrength -> stringResource(R.string.customize_adaptive_audio)
-        Screen.AppSettings -> stringResource(R.string.settings)
-//        Screen.CameraControl -> stringResource(R.string.camera_control)
-        is Screen.Equalizer -> stringResource(R.string.equalizer)
-        is Screen.HeadTracking -> stringResource(R.string.head_tracking)
-        is Screen.HearingAid -> stringResource(R.string.hearing_aid)
-        is Screen.HearingAidAdjustments -> stringResource(R.string.adjustments)
-        is Screen.HearingProtection -> stringResource(R.string.hearing_protection)
-        is Screen.LongPress -> currentScreen.bud
-        Screen.OpenSourceLicenses -> stringResource(R.string.open_source_licenses)
-        Screen.Purchase -> stringResource(R.string.unlock_advanced_features)
-        is Screen.Rename -> stringResource(R.string.name)
-        is Screen.TransparencyCustomization -> stringResource(R.string.customize_transparency_mode)
-        Screen.Troubleshooting -> stringResource(R.string.troubleshooting)
-        is Screen.UpdateHearingTest -> stringResource(R.string.update_hearing_test)
-        is Screen.VersionInfo -> stringResource(R.string.version)
-        is Screen.CallControl -> currentScreen.action
-        is Screen.MicrophoneSettings -> stringResource(R.string.microphone_mode)
-        Screen.ReleaseNotes -> ""
-        is Screen.Recording -> stringResource(R.string.recorder)
-        is Screen.Debug -> "debug"
-        is Screen.BLESettings -> stringResource(R.string.ble_settings)
     }
 
-    // is this a bad idea? probably. I can't think of a better way without having to pass around a shouldShowBackButton to each screen to pass to each scaffold
-    val actionButtons = when (currentScreen) {
-        is Screen.AppleScreen, is Screen.DeviceList -> listOf<@Composable (backdrop: LayerBackdrop) -> Unit>(
-                { scaffoldBackdrop ->
-                    if (m3eEnabled) {
-                        FilledTonalIconButton(
-                            onClick = { backStack.add(Screen.AppSettings) },
-                            modifier = Modifier
-                                .minimumInteractiveComponentSize()
-                                .size(IconButtonDefaults.mediumContainerSize(IconButtonDefaults.IconButtonWidthOption.Uniform)),
-
-                        ) {
-                            Icon(
-                                imageVector = Icons.Outlined.Settings,
-                                contentDescription = "settings",
-                                modifier = Modifier.size(IconButtonDefaults.mediumIconSize),
-                            )
-                        }
-                    } else {
-                        StyledIconButton(
-                            onClick = { backStack.add(Screen.AppSettings) },
-                            backdrop = scaffoldBackdrop
-                        ) {
-                            Icon(
-                                imageVector = LocalIcons.current.Settings,
-                                contentDescription = "Settings",
-                                tint = MaterialTheme.colorScheme.onBackground
-                            )
-                        }
-                    }
-                }
-            )
-        is Screen.HeadTracking -> listOf<@Composable (backdrop: LayerBackdrop) -> Unit>(
-            { scaffoldBackdrop ->
-                val device = devices[currentScreen.macAddress] as? AppleDevice? ?: return@listOf
-
-                val state by device.state.collectAsState()
-
-                if (m3eEnabled) {
-                    FilledTonalIconToggleButton(
-                        checked = state.headTrackingActive,
-                        onCheckedChange = { if (it) device.startHeadTracking() else device.stopHeadTracking() },
-                        modifier = Modifier
-                            .minimumInteractiveComponentSize()
-                            .size(IconButtonDefaults.mediumContainerSize(IconButtonDefaults.IconButtonWidthOption.Uniform)),
-                        shape = IconButtonDefaults.mediumRoundShape
-                    ) {
-                        Icon(
-                            imageVector = if (state.headTrackingActive) MaterialIcons.Pause else Icons.Default.PlayArrow,
-                            contentDescription = "Play/Pause",
-                            modifier = Modifier.size(IconButtonDefaults.mediumIconSize),
-                        )
-                    }
-                } else {
-                    StyledIconButton(
-                        onClick = if (!state.headTrackingActive) device::startHeadTracking else device::stopHeadTracking,
-                        backdrop = scaffoldBackdrop
-                    ) {
-                        Icon(
-                            imageVector = if (state.headTrackingActive) LocalIcons.current.Pause else LocalIcons.current.Play,
-                            contentDescription = "Play/Pause",
-                            modifier = Modifier.size(16.dp),
-                            tint = MaterialTheme.colorScheme.onBackground
-                        )
-                    }
-                }
-            }
-        )
-        else -> listOf()
-    }
-
-    StyledScaffold(
-        visible = currentScreen.showTopBar,
-        title = title,
-        showBackButton = backStack.size > 1,
-        onNavigateBack = { backStack.removeAt(backStack.lastIndex) },
-        actionButtons = actionButtons
-    ) {
     AppNavGraph(
+        backStack = backStack,
+        devicesState = devicesState,
         showReleaseNotes = showReleaseNotes,
         updatesShown = updatesShown,
         onboardingComplete = onboardingComplete,
-            backStack = backStack,
-            devicesState = devicesState,
     )
-    }
 }

android/app/src/main/kotlin/me/kavishdevar/librepods/presentation/navigation/RenderScreenContent.kt

@@ -0,0 +1,438 @@
+package me.kavishdevar.librepods.presentation.navigation
+
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.res.stringResource
+import androidx.lifecycle.ViewModelProvider
+import androidx.lifecycle.viewmodel.compose.viewModel
+import androidx.lifecycle.viewmodel.initializer
+import androidx.lifecycle.viewmodel.viewModelFactory
+import androidx.navigation3.runtime.NavBackStack
+import kotlinx.coroutines.CompletableDeferred
+import kotlinx.coroutines.channels.Channel
+import me.kavishdevar.librepods.R
+import me.kavishdevar.librepods.bluetooth.MacAddress
+import me.kavishdevar.librepods.bluetooth.aacp.types.ControlCommandIdentifier
+import me.kavishdevar.librepods.data.updates.updates
+import me.kavishdevar.librepods.devices.AppleDevice
+import me.kavishdevar.librepods.devices.Device
+import me.kavishdevar.librepods.presentation.screens.AppSettingsScreen
+import me.kavishdevar.librepods.presentation.screens.BLESettingsScreenRoute
+import me.kavishdevar.librepods.presentation.screens.DeviceListScreen
+import me.kavishdevar.librepods.presentation.screens.OpenSourceLicensesScreen
+import me.kavishdevar.librepods.presentation.screens.PurchaseScreen
+import me.kavishdevar.librepods.presentation.screens.ReleaseNotesScreen
+import me.kavishdevar.librepods.presentation.screens.apple.AccessibilitySettingsScreen
+import me.kavishdevar.librepods.presentation.screens.apple.AdaptiveStrengthScreen
+import me.kavishdevar.librepods.presentation.screens.apple.AppleSettingsRoute
+import me.kavishdevar.librepods.presentation.screens.apple.CallControlScreen
+import me.kavishdevar.librepods.presentation.screens.apple.DebugRoute
+import me.kavishdevar.librepods.presentation.screens.apple.EqualizerRoute
+import me.kavishdevar.librepods.presentation.screens.apple.HeadTrackingScreen
+import me.kavishdevar.librepods.presentation.screens.apple.HearingAidAdjustmentsScreen
+import me.kavishdevar.librepods.presentation.screens.apple.HearingAidScreen
+import me.kavishdevar.librepods.presentation.screens.apple.HearingProtectionScreen
+import me.kavishdevar.librepods.presentation.screens.apple.HeartRateRoute
+import me.kavishdevar.librepods.presentation.screens.apple.LongPress
+import me.kavishdevar.librepods.presentation.screens.apple.MicrophoneSettingsRoute
+import me.kavishdevar.librepods.presentation.screens.apple.RecordingScreenRoute
+import me.kavishdevar.librepods.presentation.screens.apple.RenameScreen
+import me.kavishdevar.librepods.presentation.screens.apple.TransparencySettingsScreen
+import me.kavishdevar.librepods.presentation.screens.apple.UpdateHearingTestRoute
+import me.kavishdevar.librepods.presentation.screens.apple.VersionScreen
+import me.kavishdevar.librepods.presentation.screens.onboarding.OnboardingScreen
+import me.kavishdevar.librepods.presentation.viewmodel.AppSettingsViewModel
+import me.kavishdevar.librepods.presentation.viewmodel.AppleViewModel
+import me.kavishdevar.librepods.presentation.viewmodel.PurchaseViewModel
+import me.kavishdevar.librepods.repository.AppDataRepository
+import me.kavishdevar.librepods.repository.HeartRateRepository
+import me.kavishdevar.librepods.repository.RecordingRepository
+
+
+private fun createAppleViewModelFactory(
+    device: AppleDevice,
+    appDataRepository: AppDataRepository,
+    recordingRepository: RecordingRepository,
+    heartRateRepository: HeartRateRepository
+): ViewModelProvider.Factory = viewModelFactory {
+    initializer {
+        AppleViewModel(
+            device = device,
+            appDataRepository = appDataRepository,
+            recordingRepository = recordingRepository,
+            heartRateRepository = heartRateRepository
+        )
+    }
+}
+
+@Composable
+fun RenderScreenContent(
+    screen: Screen,
+    backStack: NavBackStack<Screen>,
+    backRequests: Channel<CompletableDeferred<Unit>>,
+    devices: Map<MacAddress, Device<*, *, *>>,
+    appDataRepository: AppDataRepository,
+    recordingRepository: RecordingRepository,
+    heartRateRepository: HeartRateRepository,
+    showReleaseNotes: Boolean,
+    updatesShown: () -> Unit,
+    onboardingComplete: () -> Unit
+) {
+    val navigate: (Screen) -> Unit = { target -> backStack.add(target) }
+    fun navigateToPurchase() = navigate(Screen.Purchase)
+
+    val navigateBack: (() -> Unit)? = if (backStack.size > 1) {
+        {
+            val completed = CompletableDeferred<Unit>()
+            backRequests.trySend(completed)
+        }
+    } else null
+
+    when (screen) {
+        Screen.Onboarding -> {
+            OnboardingScreen {
+                onboardingComplete()
+                if (showReleaseNotes) navigate(Screen.ReleaseNotes) else navigate(Screen.DeviceList)
+                backStack.remove(screen)
+            }
+        }
+
+        Screen.DeviceList -> {
+            DeviceListScreen(
+                devices = devices,
+                navigateToAppSettings = { navigate(Screen.AppSettings) },
+                navigateToDevice = { macAddress ->
+                    when (devices[macAddress]) {
+                        is AppleDevice -> navigate(Screen.AppleScreen(macAddress))
+                        else -> {}
+                    }
+                }
+            )
+        }
+
+        is Screen.AppleScreen -> {
+            val device = devices[screen.macAddress] as? AppleDevice ?: return
+            val factory = createAppleViewModelFactory(device, appDataRepository, recordingRepository, heartRateRepository)
+            val appleViewModel: AppleViewModel = viewModel(
+                key = "${screen.macAddress.value}:${device.connectionNumber}",
+                factory = factory
+            )
+
+            val left = stringResource(R.string.left)
+            val right = stringResource(R.string.right)
+
+            AppleSettingsRoute(
+                viewModel = appleViewModel,
+                navigateBack = navigateBack,
+                navigateToRename = { navigate(Screen.Rename(screen.macAddress)) },
+                navigateToHearingProtection = { navigate(Screen.HearingProtection(screen.macAddress)) },
+                navigateToHearingAid = { navigate(Screen.HearingAid(screen.macAddress)) },
+                navigateToLeftLongPress = { navigate(Screen.LongPress(screen.macAddress, left)) },
+                navigateToRightLongPress = { navigate(Screen.LongPress(screen.macAddress, right)) },
+                navigateToPurchase = ::navigateToPurchase,
+                navigateToAdaptiveStrength = { navigate(Screen.AdaptiveStrength(screen.macAddress)) },
+                navigateToEqualizer = { navigate(Screen.Equalizer(screen.macAddress)) },
+                navigateToHeadTracking = { navigate(Screen.HeadTracking(screen.macAddress)) },
+                navigateToAccessibility = { navigate(Screen.Accessibility(screen.macAddress)) },
+                navigateToVersion = { navigate(Screen.VersionInfo(screen.macAddress)) },
+                navigateToCallControlScreen = { navigate(Screen.CallControl(screen.macAddress, it)) },
+                navigateToMicrophoneSettings = { navigate(Screen.MicrophoneSettings(screen.macAddress)) },
+                navigateToRecordingScreen = { navigate(Screen.Recording(screen.macAddress)) },
+                navigateToHeartRateScreen = { navigate(Screen.HeartRate(screen.macAddress)) },
+                navigateToDebugScreen = { navigate(Screen.Debug(screen.macAddress)) }
+            )
+        }
+
+        is Screen.Rename -> {
+            val device = devices[screen.macAddress] as? AppleDevice ?: return
+            val factory = createAppleViewModelFactory(device, appDataRepository, recordingRepository, heartRateRepository)
+            val appleViewModel: AppleViewModel = viewModel(
+                key = "${screen.macAddress.value}:${device.connectionNumber}",
+                factory = factory
+            )
+            RenameScreen(
+                viewModel = appleViewModel,
+                navigateBack = navigateBack,
+            )
+        }
+
+        Screen.AppSettings -> {
+            val factory = viewModelFactory {
+                initializer { AppSettingsViewModel(appDataRepository = appDataRepository) }
+            }
+            val appSettingsViewModel: AppSettingsViewModel = viewModel(factory = factory)
+
+            AppSettingsScreen(
+                viewModel = appSettingsViewModel,
+                navigateBack = navigateBack,
+                navigateToPurchase = ::navigateToPurchase,
+                navigateToOpenSourceLicenses = { navigate(Screen.OpenSourceLicenses) },
+                navigateToReleaseNotesScreen = { navigate(Screen.ReleaseNotes) },
+                navigateToBleSettingsScreen = { navigate(Screen.BLESettings) }
+            )
+        }
+
+        is Screen.HeadTracking -> {
+            val device = devices[screen.macAddress] as? AppleDevice ?: return
+            val factory = createAppleViewModelFactory(device, appDataRepository, recordingRepository, heartRateRepository)
+            val appleViewModel: AppleViewModel = viewModel(
+                key = "${screen.macAddress.value}:${device.connectionNumber}",
+                factory = factory
+            )
+            HeadTrackingScreen(
+                viewModel = appleViewModel,
+                navigateBack = navigateBack,
+                navigateToPurchase = ::navigateToPurchase
+            )
+        }
+
+        is Screen.Accessibility -> {
+            val device = devices[screen.macAddress] as? AppleDevice ?: return
+            val factory = createAppleViewModelFactory(device, appDataRepository, recordingRepository, heartRateRepository)
+            val appleViewModel: AppleViewModel = viewModel(
+                key = "${screen.macAddress.value}:${device.connectionNumber}",
+                factory = factory
+            )
+
+            AccessibilitySettingsScreen(
+                viewModel = appleViewModel,
+                navigateBack = navigateBack,
+                navigateToPurchase = ::navigateToPurchase,
+                navigateToTransparencyCustomization = {
+                    navigate(Screen.TransparencyCustomization(screen.macAddress))
+                }
+            )
+        }
+
+        is Screen.TransparencyCustomization -> {
+            val device = devices[screen.macAddress] as? AppleDevice ?: return
+            val factory = createAppleViewModelFactory(device, appDataRepository, recordingRepository, heartRateRepository)
+            val appleViewModel: AppleViewModel = viewModel(
+                key = "${screen.macAddress.value}:${device.connectionNumber}",
+                factory = factory
+            )
+            TransparencySettingsScreen(
+                viewModel = appleViewModel,
+                navigateBack = navigateBack,
+            )
+        }
+
+        is Screen.HearingAid -> {
+            val device = devices[screen.macAddress] as? AppleDevice ?: return
+            val factory = createAppleViewModelFactory(device, appDataRepository, recordingRepository, heartRateRepository)
+            val appleViewModel: AppleViewModel = viewModel(
+                key = "${screen.macAddress.value}:${device.connectionNumber}",
+                factory = factory
+            )
+
+            HearingAidScreen(
+                viewModel = appleViewModel,
+                navigateBack = navigateBack,
+                navigateToHearingAidAdjustments = { navigate(Screen.HearingAidAdjustments(screen.macAddress)) },
+                navigateToHearingTest = { navigate(Screen.UpdateHearingTest(screen.macAddress)) }
+            )
+        }
+
+        is Screen.HearingAidAdjustments -> {
+            val device = devices[screen.macAddress] as? AppleDevice ?: return
+            val factory = createAppleViewModelFactory(device, appDataRepository, recordingRepository, heartRateRepository)
+            val appleViewModel: AppleViewModel = viewModel(
+                key = "${screen.macAddress.value}:${device.connectionNumber}",
+                factory = factory
+            )
+            HearingAidAdjustmentsScreen(
+                viewModel = appleViewModel,
+                navigateBack = navigateBack,
+            )
+        }
+
+        is Screen.AdaptiveStrength -> {
+            val device = devices[screen.macAddress] as? AppleDevice ?: return
+            val factory = createAppleViewModelFactory(device, appDataRepository, recordingRepository, heartRateRepository)
+            val appleViewModel: AppleViewModel = viewModel(
+                key = "${screen.macAddress.value}:${device.connectionNumber}",
+                factory = factory
+            )
+            AdaptiveStrengthScreen(
+                viewModel = appleViewModel,
+                navigateBack = navigateBack,
+                navigateToPurchase = ::navigateToPurchase
+            )
+        }
+
+        Screen.OpenSourceLicenses -> OpenSourceLicensesScreen(navigateBack)
+
+        is Screen.UpdateHearingTest -> {
+            val device = devices[screen.macAddress] as? AppleDevice ?: return
+            val factory = createAppleViewModelFactory(device, appDataRepository, recordingRepository, heartRateRepository)
+            val appleViewModel: AppleViewModel = viewModel(
+                key = "${screen.macAddress.value}:${device.connectionNumber}",
+                factory = factory
+            )
+            UpdateHearingTestRoute(
+                viewModel = appleViewModel,
+                navigateBack = navigateBack,
+            )
+        }
+
+        is Screen.VersionInfo -> {
+            val device = devices[screen.macAddress] as? AppleDevice ?: return
+            val factory = createAppleViewModelFactory(device, appDataRepository, recordingRepository, heartRateRepository)
+            val appleViewModel: AppleViewModel = viewModel(
+                key = "${screen.macAddress.value}:${device.connectionNumber}",
+                factory = factory
+            )
+            VersionScreen(
+                viewModel = appleViewModel,
+                navigateBack = navigateBack
+            )
+        }
+
+        is Screen.HearingProtection -> {
+            val device = devices[screen.macAddress] as? AppleDevice ?: return
+            val factory = createAppleViewModelFactory(device, appDataRepository, recordingRepository, heartRateRepository)
+            val appleViewModel: AppleViewModel = viewModel(
+                key = "${screen.macAddress.value}:${device.connectionNumber}",
+                factory = factory
+            )
+            HearingProtectionScreen(
+                viewModel = appleViewModel,
+                navigateBack = navigateBack,
+                navigateToPurchase = ::navigateToPurchase
+            )
+        }
+
+        is Screen.Purchase -> {
+            val viewModel: PurchaseViewModel = viewModel()
+            PurchaseScreen(
+                viewModel = viewModel,
+                navigateBack = navigateBack
+            )
+        }
+
+        is Screen.Equalizer -> {
+            val device = devices[screen.macAddress] as? AppleDevice ?: return
+            val factory = createAppleViewModelFactory(device, appDataRepository, recordingRepository, heartRateRepository)
+            val appleViewModel: AppleViewModel = viewModel(
+                key = "${screen.macAddress.value}:${device.connectionNumber}",
+                factory = factory
+            )
+            EqualizerRoute(
+                viewModel = appleViewModel,
+                navigateBack = navigateBack
+            )
+        }
+
+        is Screen.LongPress -> {
+            val device = devices[screen.macAddress] as? AppleDevice ?: return
+            val factory = createAppleViewModelFactory(device, appDataRepository, recordingRepository, heartRateRepository)
+            val appleViewModel: AppleViewModel = viewModel(
+                key = "${screen.macAddress.value}:${device.connectionNumber}",
+                factory = factory
+            )
+            LongPress(
+                viewModel = appleViewModel,
+                name = screen.bud,
+                navigateBack = navigateBack,
+                navigateToPurchase = ::navigateToPurchase
+            )
+        }
+
+        is Screen.CallControl -> {
+            val device = devices[screen.macAddress] as? AppleDevice ?: return
+            val factory = createAppleViewModelFactory(device, appDataRepository, recordingRepository, heartRateRepository)
+            val appleViewModel: AppleViewModel = viewModel(
+                key = "${screen.macAddress.value}:${device.connectionNumber}",
+                factory = factory
+            )
+            CallControlScreen(
+                viewModel = appleViewModel,
+                action = screen.action,
+                navigateBack = navigateBack,
+                onCallControlValueChanged = { flipped ->
+                    device.setControlCommand(
+                        ControlCommandIdentifier.CALL_MANAGEMENT_CONFIG,
+                        if (flipped) byteArrayOf(0x00, 0x02) else byteArrayOf(0x00, 0x03)
+                    )
+                }
+            )
+        }
+
+        is Screen.MicrophoneSettings -> {
+            val device = devices[screen.macAddress] as? AppleDevice ?: return
+            val factory = createAppleViewModelFactory(device, appDataRepository, recordingRepository, heartRateRepository)
+            val appleViewModel: AppleViewModel = viewModel(
+                key = "${screen.macAddress.value}:${device.connectionNumber}",
+                factory = factory
+            )
+            MicrophoneSettingsRoute(
+                viewModel = appleViewModel,
+                navigateBack = navigateBack
+            )
+        }
+
+        is Screen.ReleaseNotes -> {
+            ReleaseNotesScreen(
+                updates = updates,
+                releaseNotesShown = {
+                    if (showReleaseNotes) {
+                        navigate(Screen.DeviceList)
+                        backStack.remove(screen)
+                        updatesShown()
+                    } else {
+                        backStack.removeAt(backStack.lastIndex)
+                    }
+                }
+            )
+        }
+
+        is Screen.Recording -> {
+            val device = devices[screen.macAddress] as? AppleDevice ?: return
+            val factory = createAppleViewModelFactory(device, appDataRepository, recordingRepository, heartRateRepository)
+            val appleViewModel: AppleViewModel = viewModel(
+                key = "${screen.macAddress.value}:${device.connectionNumber}",
+                factory = factory
+            )
+            RecordingScreenRoute(
+                viewModel = appleViewModel,
+                navigateBack = navigateBack
+            )
+        }
+
+        is Screen.Debug -> {
+            val device = devices[screen.macAddress] as? AppleDevice ?: return
+            val factory = createAppleViewModelFactory(device, appDataRepository, recordingRepository, heartRateRepository)
+            val appleViewModel: AppleViewModel = viewModel(
+                key = "${screen.macAddress.value}:${device.connectionNumber}",
+                factory = factory
+            )
+            DebugRoute(
+                viewModel = appleViewModel,
+                navigateBack = navigateBack
+            )
+        }
+
+        is Screen.BLESettings -> {
+            val factory = viewModelFactory {
+                initializer { AppSettingsViewModel(appDataRepository = appDataRepository) }
+            }
+            val appSettingsViewModel: AppSettingsViewModel = viewModel(factory = factory)
+            BLESettingsScreenRoute(
+                viewModel = appSettingsViewModel,
+                navigateBack = navigateBack
+            )
+        }
+
+        is Screen.HeartRate -> {
+            val device = devices[screen.macAddress] as? AppleDevice ?: return
+            val factory = createAppleViewModelFactory(device, appDataRepository, recordingRepository, heartRateRepository)
+            val appleViewModel: AppleViewModel = viewModel(
+                key = "${screen.macAddress.value}:${device.connectionNumber}",
+                factory = factory
+            )
+            HeartRateRoute(
+                viewModel = appleViewModel,
+                navigateBack = navigateBack
+            )
+        }
+    }
+}

android/app/src/main/kotlin/me/kavishdevar/librepods/presentation/navigation/Screen.kt

@@ -30,9 +30,6 @@ sealed interface Screen: NavKey {
     @Serializable
     data object AppSettings: Screen
 
-    @Serializable
-    data object Troubleshooting: Screen
-
     @Serializable
     data class HeadTracking(
         override val macAddress: MacAddress
@@ -126,6 +123,11 @@ sealed interface Screen: NavKey {
 
     @Serializable
     data object BLESettings: Screen
+
+    @Serializable
+    data class HeartRate(
+        override val macAddress: MacAddress
+    ): DeviceScreen
 }
 
 @Serializable

android/app/src/main/kotlin/me/kavishdevar/librepods/presentation/navigation/SwipeBack.kt

@@ -0,0 +1,297 @@
+package me.kavishdevar.librepods.presentation.navigation
+
+import androidx.activity.compose.PredictiveBackHandler
+import androidx.compose.animation.core.Animatable
+import androidx.compose.animation.core.animate
+import androidx.compose.animation.core.tween
+import androidx.compose.foundation.gestures.Orientation
+import androidx.compose.foundation.gestures.draggable
+import androidx.compose.foundation.gestures.rememberDraggableState
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.CompositionLocalProvider
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableFloatStateOf
+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.graphicsLayer
+import androidx.compose.ui.platform.LocalDensity
+import androidx.compose.ui.platform.LocalWindowInfo
+import androidx.navigation3.runtime.NavEntry
+import androidx.navigation3.scene.Scene
+import androidx.navigation3.scene.SceneStrategy
+import androidx.navigation3.scene.SceneStrategyScope
+import kotlinx.coroutines.CompletableDeferred
+import kotlinx.coroutines.channels.Channel
+import kotlinx.coroutines.launch
+import kotlin.coroutines.cancellation.CancellationException
+
+// mostly AI generated
+
+private enum class Direction {
+    Forward,
+    Back,
+    None
+}
+
+class SwipeBackSceneStrategy<T : Any>(
+    private val enabled: Boolean,
+    private val backRequests: Channel<CompletableDeferred<Unit>>,
+    private val onDismiss: () -> Unit
+) : SceneStrategy<T> {
+
+    private var previousEntries: List<NavEntry<T>> = emptyList()
+
+    override fun SceneStrategyScope<T>.calculateScene(
+        entries: List<NavEntry<T>>
+    ): Scene<T>? {
+        if (entries.isEmpty()) return null
+
+        val currentEntry = entries.last()
+        val previousEntry = entries.getOrNull(entries.lastIndex - 1)
+
+        val direction = when {
+            previousEntries.isEmpty() -> Direction.None
+            currentEntry in previousEntries -> Direction.Back
+            else -> Direction.Forward
+        }
+
+        previousEntries = entries
+//
+//        if (previousEntry == null) {
+//            return object : Scene<T> {
+//                override val key: Any
+//                    get() = "${currentEntry.contentKey}_${currentEntry.hashCode()}"
+//
+//                override val entries: List<NavEntry<T>>
+//                    get() = listOf(currentEntry)
+//
+//                override val previousEntries: List<NavEntry<T>>
+//                    get() = emptyList()
+//
+//                override val content: @Composable () -> Unit
+//                    get() = { currentEntry.Content() }
+//            }
+//        }
+
+        return object : Scene<T> {
+            override val key: Any
+                get() = "${currentEntry.contentKey}_${currentEntry.hashCode()}"
+
+            override val entries: List<NavEntry<T>>
+                get() = listOfNotNull(previousEntry, currentEntry)
+
+            override val previousEntries: List<NavEntry<T>>
+                get() = listOfNotNull(previousEntry)
+
+            override val content: @Composable () -> Unit
+                get() = {
+                    SwipeBackSceneContent(
+                        previousEntry = previousEntry,
+                        currentEntry = currentEntry,
+                        direction = direction,
+                        swipeEnabled = enabled,
+                        backRequests = backRequests,
+                        onDismiss = onDismiss
+                    )
+                }
+        }
+    }
+}
+
+@Composable
+private fun <T : Any> SwipeBackSceneContent(
+    previousEntry: NavEntry<T>?,
+    currentEntry: NavEntry<T>,
+    direction: Direction,
+    swipeEnabled: Boolean,
+    backRequests: Channel<CompletableDeferred<Unit>>,
+    onDismiss: () -> Unit
+) {
+    val density = LocalDensity.current
+    val screenWidthPx = with(density) {
+        LocalWindowInfo.current.containerDpSize.width.toPx()
+    }
+
+    val animatedOffset = remember(
+        "${currentEntry.contentKey}_${currentEntry.hashCode()}"
+    ) {
+        Animatable(
+            if (direction == Direction.Forward) {
+                screenWidthPx
+            } else {
+                0f
+            }
+        )
+    }
+
+    var transitionProgress by remember {
+        mutableFloatStateOf(
+            if (direction == Direction.Forward) 1f else 0f
+        )
+    }
+
+    val scope = rememberCoroutineScope()
+
+    LaunchedEffect(
+        "${currentEntry.contentKey}_${currentEntry.hashCode()}",
+        direction
+    ) {
+        if (direction == Direction.Forward) {
+            transitionProgress = 1f
+
+            animatedOffset.animateTo(
+                0f,
+                tween(220)
+            )
+
+            transitionProgress = 0f
+        }
+    }
+
+    LaunchedEffect(Unit) {
+        for (completed in backRequests) {
+            animatedOffset.animateTo(
+                screenWidthPx,
+                tween(150)
+            )
+
+            transitionProgress = -1f
+            onDismiss()
+            completed.complete(Unit)
+        }
+    }
+
+    PredictiveBackHandler { progressFlow ->
+        try {
+            progressFlow.collect { backEvent ->
+                val progress = backEvent.progress
+
+                transitionProgress = -progress
+
+                animatedOffset.snapTo(
+                    progress * screenWidthPx
+                )
+            }
+
+            animatedOffset.animateTo(
+                screenWidthPx,
+                tween(150)
+            )
+
+            transitionProgress = -1f
+            onDismiss()
+        } catch (_: CancellationException) {
+            animatedOffset.animateTo(
+                0f,
+                tween(150)
+            )
+
+            transitionProgress = 0f
+        }
+    }
+
+    val draggableState = rememberDraggableState { delta ->
+        scope.launch {
+            val offset =
+                (animatedOffset.value + delta)
+                    .coerceAtLeast(0f)
+
+            animatedOffset.snapTo(offset)
+
+            transitionProgress =
+                -(offset / screenWidthPx)
+                    .coerceIn(0f, 1f)
+        }
+    }
+
+    CompositionLocalProvider(
+        LocalTransitionProgress provides transitionProgress
+    ) {
+        Box(Modifier.fillMaxSize()) {
+            CompositionLocalProvider(
+                LocalIsCurrentEntry provides false
+            ) {
+                Box(
+                    Modifier
+                        .fillMaxSize()
+                        .graphicsLayer {
+                            translationX =
+                                if (direction == Direction.Forward) {
+                                    0f
+                                } else {
+                                    (-screenWidthPx / 3f) +
+                                        (animatedOffset.value / 3f)
+                                }
+                        }
+                ) {
+                    previousEntry?.Content()
+                }
+            }
+
+            CompositionLocalProvider(
+                LocalIsCurrentEntry provides true
+            ) {
+                Box(
+                    Modifier
+                        .fillMaxSize()
+                        .graphicsLayer {
+                            translationX = animatedOffset.value
+                        }
+                        .draggable(
+                            enabled = swipeEnabled && previousEntry != null,
+                            state = draggableState,
+                            orientation = Orientation.Horizontal,
+                            onDragStopped = { velocity ->
+                                val currentOffset = animatedOffset.value
+                                val currentProgress =
+                                    (currentOffset / screenWidthPx).coerceIn(0f, 1f)
+
+                                val shouldDismiss =
+                                    currentOffset > screenWidthPx * 0.35f ||
+                                        velocity > 1000f
+
+                                scope.launch {
+                                    if (shouldDismiss) {
+                                        animate(
+                                            initialValue = currentProgress,
+                                            targetValue = 1f,
+                                            animationSpec = tween(150)
+                                        ) { value, _ ->
+                                            transitionProgress = -value
+                                            scope.launch {
+                                                animatedOffset.snapTo(value * screenWidthPx)
+                                            }
+                                        }
+
+                                        transitionProgress = -1f
+                                        onDismiss()
+                                    } else {
+                                        animate(
+                                            initialValue = currentProgress,
+                                            targetValue = 0f,
+                                            animationSpec = tween(150)
+                                        ) { value, _ ->
+                                            transitionProgress = -value
+                                            scope.launch {
+                                                animatedOffset.snapTo(value * screenWidthPx)
+                                            }
+                                        }
+
+                                        transitionProgress = 0f
+                                        animatedOffset.snapTo(0f)
+                                    }
+                                }
+                            }
+                        )
+                ) {
+                    currentEntry.Content()
+                }
+            }
+        }
+    }
+}

android/app/src/main/kotlin/me/kavishdevar/librepods/presentation/navigation/Transition.kt

@@ -0,0 +1,11 @@
+package me.kavishdevar.librepods.presentation.navigation
+
+import androidx.compose.animation.SharedTransitionScope
+import androidx.compose.runtime.compositionLocalOf
+
+val LocalSharedTransitionScope = compositionLocalOf<SharedTransitionScope> {
+    error("LocalSharedTransitionScope not provided")
+}
+
+val LocalTransitionProgress = compositionLocalOf { 0f }
+val LocalIsCurrentEntry = compositionLocalOf { false }

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

@@ -29,14 +29,10 @@ 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.WindowInsets
-import androidx.compose.foundation.layout.asPaddingValues
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.navigationBars
 import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.statusBars
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.foundation.text.input.TextFieldState
@@ -76,10 +72,10 @@ import me.kavishdevar.librepods.presentation.components.StyledInputField
 import me.kavishdevar.librepods.presentation.components.StyledList
 import me.kavishdevar.librepods.presentation.components.StyledListItem
 import me.kavishdevar.librepods.presentation.components.StyledListItemOrientation
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
 import me.kavishdevar.librepods.presentation.components.StyledToggle
 import me.kavishdevar.librepods.presentation.icons.LocalIcons
 import me.kavishdevar.librepods.presentation.theme.DesignSystem
-import me.kavishdevar.librepods.presentation.theme.LocalDesignSystem
 import me.kavishdevar.librepods.presentation.theme.NightTheme
 import me.kavishdevar.librepods.presentation.viewmodel.AppSettingsViewModel
 import me.kavishdevar.librepods.utils.XposedState
@@ -89,8 +85,8 @@ import java.util.concurrent.TimeUnit
 @Composable
 fun AppSettingsScreen(
     viewModel: AppSettingsViewModel = viewModel(),
+    navigateBack: (() -> Unit)?,
     navigateToPurchase: () -> Unit,
-    navigateToTroubleshooting: () -> Unit,
     navigateToOpenSourceLicenses: () -> Unit,
     navigateToReleaseNotesScreen: () -> Unit,
     navigateToBleSettingsScreen: () -> Unit
@@ -107,10 +103,10 @@ fun AppSettingsScreen(
     val subjectFocusRequester = remember { FocusRequester() }
     val descriptionFocusRequester = remember { FocusRequester() }
 
-    val m3eEnabled = LocalDesignSystem.current == DesignSystem.Material
+    StyledScaffold(
-    val topPadding = if (m3eEnabled) 16.dp else WindowInsets.statusBars.asPaddingValues().calculateTopPadding() + 84.dp
+        title = stringResource(R.string.settings),
-    val bottomPadding = WindowInsets.navigationBars.asPaddingValues().calculateBottomPadding() + 12.dp
+        navigateBack = navigateBack
-
+    ) { topPadding, bottomPadding ->
         Column(
             modifier = Modifier
                 .fillMaxSize()
@@ -137,6 +133,7 @@ fun AppSettingsScreen(
                 }
                 Spacer(modifier = Modifier.height(16.dp))
             }
+
             if (state.state.timeUntilFOSSPremiumExpiry > 0L) {
                 Box(
                     modifier = Modifier
@@ -208,10 +205,41 @@ fun AppSettingsScreen(
                         enabled = state.isPremium
                     )
                 }
+
+                Spacer(modifier = Modifier.height(16.dp))
+
+                StyledList(title = stringResource(R.string.interaction)) {
+                    StyledToggle(
+                        label = stringResource(R.string.swipe_anywhere_to_go_back),
+                        checked = state.settings.swipeAnywhereForBack,
+                        onCheckedChange = { checked ->
+                            viewModel.updateSettings {
+                                it.copy(swipeAnywhereForBack = checked)
+                            }
+                        },
+                    )
+
+                    StyledToggle(
+                        label = stringResource(R.string.use_highest_refresh_rate),
+                        checked = state.settings.useHighestRefreshRate,
+                        onCheckedChange = { checked ->
+                            viewModel.updateSettings {
+                                it.copy(useHighestRefreshRate = checked)
+                            }
+                        }
+                    )
+                }
             }
 
+            Spacer(modifier = Modifier.height(16.dp))
+
+            StyledList(
+                title = stringResource(R.string.advanced_options),
+                description = stringResource(R.string.do_not_change)
+            ) {
                 if (XposedState.isAvailable && XposedState.bluetoothScopeEnabled) {
-            val restartBluetoothText = stringResource(R.string.found_offset_restart_bluetooth)
+                    val restartBluetoothText =
+                        stringResource(R.string.found_offset_restart_bluetooth)
                     StyledToggle(
                         label = stringResource(R.string.act_as_an_apple_device) + " (${
                             stringResource(
@@ -227,15 +255,9 @@ fun AppSettingsScreen(
                     )
                 }
 
-        StyledListItem(
-            contentText = stringResource(R.string.ble_settings),
-            supportingText = stringResource(R.string.do_not_change),
-            orientation = StyledListItemOrientation.Vertical,
-            onClick = navigateToBleSettingsScreen
-        )
-
                 StyledToggle(
                     label = stringResource(R.string.enable_debug_mode),
+                    description = stringResource(R.string.debug_mode_description),
                     checked = state.settings.debugMode,
                     onCheckedChange = { checked ->
                         viewModel.updateSettings {
@@ -244,17 +266,14 @@ fun AppSettingsScreen(
                     }
                 )
 
-        if (!BuildConfig.PLAY_BUILD) {
-            Spacer(modifier = Modifier.height(16.dp))
-            StyledList {
                 StyledListItem(
-                    contentText =  stringResource(R.string.troubleshooting),
+                    contentText = stringResource(R.string.ble_settings),
-                    onClick = navigateToTroubleshooting,
+                    orientation = StyledListItemOrientation.Vertical,
+                    onClick = navigateToBleSettingsScreen
                 )
             }
-        }
 
-        Spacer(modifier = Modifier.height(8.dp))
+            Spacer(modifier = Modifier.height(16.dp))
 
             StyledList(title = stringResource(R.string.contact)) {
                 StyledListItem(
@@ -325,9 +344,12 @@ fun AppSettingsScreen(
                 )
             }
 
-        Spacer(modifier = Modifier.height(20.dp))
-        DeviceInfoCard()
             Spacer(modifier = Modifier.height(16.dp))
+
+            DeviceInfoCard()
+
+            Spacer(modifier = Modifier.height(16.dp))
+
             AppInfoCard(navigateToReleaseNotesScreen)
 
             Spacer(modifier = Modifier.height(16.dp))
@@ -404,6 +426,7 @@ fun AppSettingsScreen(
 //            })
 //        }
         }
+    }
 
     StyledBottomSheet(
         visible = contactBottomSheet.value,

android/app/src/main/kotlin/me/kavishdevar/librepods/presentation/screens/BLESettingsScreen.kt

@@ -1,16 +1,9 @@
 package me.kavishdevar.librepods.presentation.screens
 
-import androidx.compose.foundation.background
 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.WindowInsets
-import androidx.compose.foundation.layout.asPaddingValues
-import androidx.compose.foundation.layout.fillMaxSize
-import androidx.compose.foundation.layout.navigationBars
 import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.statusBars
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.verticalScroll
 import androidx.compose.material3.MaterialTheme
@@ -24,38 +17,27 @@ import androidx.compose.runtime.remember
 import androidx.compose.runtime.snapshotFlow
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource
-import androidx.compose.ui.unit.Dp
 import androidx.compose.ui.unit.dp
 import kotlinx.coroutines.flow.debounce
 import me.kavishdevar.librepods.R
 import me.kavishdevar.librepods.presentation.components.StyledList
 import me.kavishdevar.librepods.presentation.components.StyledListItem
 import me.kavishdevar.librepods.presentation.components.StyledListItemOrientation
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
 import me.kavishdevar.librepods.presentation.components.StyledSlider
-import me.kavishdevar.librepods.presentation.theme.DesignSystem
-import me.kavishdevar.librepods.presentation.theme.LocalDesignSystem
 import me.kavishdevar.librepods.presentation.viewmodel.AppSettingsViewModel
 import kotlin.time.Duration.Companion.seconds
 
 @Composable
 fun BLESettingsScreenRoute(
-    viewModel: AppSettingsViewModel
+    viewModel: AppSettingsViewModel,
+    navigateBack: (() -> Unit)?
 ) {
-    val m3eEnabled = LocalDesignSystem.current == DesignSystem.Material
-    val topPadding = if (m3eEnabled) 0.dp else WindowInsets.statusBars.asPaddingValues().calculateTopPadding() + 84.dp
-    val bottomPadding = WindowInsets.navigationBars.asPaddingValues().calculateBottomPadding() + 12.dp
-
     val uiState by viewModel.uiState.collectAsState()
     val settings = uiState.settings
 
-    Box (
-        modifier = Modifier
-            .fillMaxSize()
-            .background(MaterialTheme.colorScheme.surfaceContainer)
-    ) {
     BLESettingsScreen(
-            topPadding = topPadding,
+        navigateBack = navigateBack,
-            bottomPadding = bottomPadding,
         scanMode = settings.bleScanMode,
         onScanModeChanged = { scanMode ->
             viewModel.updateSettings {
@@ -69,13 +51,11 @@ fun BLESettingsScreenRoute(
             }
         },
     )
-    }
 }
 
 @Composable
 fun BLESettingsScreen(
-    topPadding: Dp = 16.dp,
+    navigateBack: (() -> Unit)? = null,
-    bottomPadding: Dp = 16.dp,
     scanMode: Int,
     onScanModeChanged: (Int) -> Unit,
     reportDelay: Long,
@@ -83,6 +63,10 @@ fun BLESettingsScreen(
 ) {
     val scrollState = rememberScrollState()
 
+    StyledScaffold(
+        title = stringResource(R.string.ble_settings),
+        navigateBack = navigateBack
+    ) { topPadding, bottomPadding ->
         Column(
             modifier = Modifier
                 .padding(horizontal = 16.dp)
@@ -131,14 +115,16 @@ fun BLESettingsScreen(
                     }
             }
 
-        StyledList(title = stringResource(R.string.ble_report_delay)) {
             StyledSlider(
+                label = stringResource(R.string.ble_report_delay),
                 value = sliderValue.floatValue,
                 onValueChange = { sliderValue.floatValue = it },
                 valueRange = 0f..1000f,
                 description = sliderValue.floatValue.toString() + "ms",
+                independent = true // i thought I got rid of all this lol
             )
-        }
+
             Spacer(modifier = Modifier.padding(bottom = bottomPadding))
         }
+    }
 }

android/app/src/main/kotlin/me/kavishdevar/librepods/presentation/screens/DeviceListScreen.kt

@@ -9,26 +9,25 @@ import androidx.compose.animation.core.Spring
 import androidx.compose.animation.core.infiniteRepeatable
 import androidx.compose.animation.core.spring
 import androidx.compose.animation.core.tween
-import androidx.compose.foundation.background
 import androidx.compose.foundation.gestures.detectTapGestures
 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.WindowInsets
-import androidx.compose.foundation.layout.asPaddingValues
-import androidx.compose.foundation.layout.fillMaxSize
-import androidx.compose.foundation.layout.navigationBars
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
-import androidx.compose.foundation.layout.statusBars
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.verticalScroll
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.Settings
+import androidx.compose.material3.FilledTonalIconButton
 import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButtonDefaults
 import androidx.compose.material3.MaterialShapes
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
 import androidx.compose.material3.contentColorFor
+import androidx.compose.material3.minimumInteractiveComponentSize
 import androidx.compose.material3.toPath
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
@@ -48,7 +47,6 @@ import androidx.compose.ui.graphics.Path
 import androidx.compose.ui.graphics.drawscope.rotate
 import androidx.compose.ui.input.pointer.pointerInput
 import androidx.compose.ui.res.stringResource
-import androidx.compose.ui.unit.Dp
 import androidx.compose.ui.unit.dp
 import androidx.graphics.shapes.Morph
 import kotlinx.coroutines.CoroutineScope
@@ -69,9 +67,11 @@ import me.kavishdevar.librepods.devices.BaseCapability
 import me.kavishdevar.librepods.devices.ConnectionState
 import me.kavishdevar.librepods.devices.Device
 import me.kavishdevar.librepods.presentation.components.NoiseControlSettings
+import me.kavishdevar.librepods.presentation.components.StyledIconButton
 import me.kavishdevar.librepods.presentation.components.StyledList
 import me.kavishdevar.librepods.presentation.components.StyledListItem
 import me.kavishdevar.librepods.presentation.components.StyledListItemOrientation
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
 import me.kavishdevar.librepods.presentation.icons.LocalIcons
 import me.kavishdevar.librepods.presentation.theme.DesignSystem
 import me.kavishdevar.librepods.presentation.theme.LocalDesignSystem
@@ -79,38 +79,48 @@ import me.kavishdevar.librepods.presentation.utils.createAirPodsBatteryRichText
 import kotlin.math.min
 import kotlin.time.Duration.Companion.milliseconds
 
-@Composable
-fun DeviceListRoute(
-    devices: Map<MacAddress, Device<*, *, *>>,
-    navigateToDevice: (MacAddress) -> Unit,
-) {
-    val m3eEnabled = LocalDesignSystem.current == DesignSystem.Material
-    val topPadding = if (m3eEnabled) 0.dp else WindowInsets.statusBars.asPaddingValues().calculateTopPadding() + 84.dp
-    val bottomPadding = WindowInsets.navigationBars.asPaddingValues().calculateBottomPadding() + 12.dp
-
-    Box (
-        modifier = Modifier
-            .fillMaxSize()
-            .background(MaterialTheme.colorScheme.surfaceContainer)
-    ) {
-        DeviceListScreen(
-            devices = devices,
-            navigateToDevice = navigateToDevice,
-            topPadding = topPadding,
-            bottomPadding = bottomPadding
-        )
-    }
-}
-
 @Composable
 fun DeviceListScreen(
     devices: Map<MacAddress, Device<*, *, *>>,
+    navigateToAppSettings: () -> Unit,
     navigateToDevice: (MacAddress) -> Unit,
-    topPadding: Dp = 16.dp,
-    bottomPadding: Dp = 16.dp
 ) {
     val scrollState = rememberScrollState()
 
+    StyledScaffold(
+        title = stringResource(R.string.app_name),
+        navigateBack = null,
+        actionButtons = listOf(
+            { scaffoldBackdrop ->
+                if (LocalDesignSystem.current == DesignSystem.Material) {
+                    FilledTonalIconButton(
+                        onClick = navigateToAppSettings,
+                        modifier = Modifier
+                            .minimumInteractiveComponentSize()
+                            .size(IconButtonDefaults.mediumContainerSize(IconButtonDefaults.IconButtonWidthOption.Uniform)),
+
+                        ) {
+                        Icon(
+                            imageVector = Icons.Outlined.Settings,
+                            contentDescription = "settings",
+                            modifier = Modifier.size(IconButtonDefaults.mediumIconSize),
+                        )
+                    }
+                } else {
+                    StyledIconButton(
+                        onClick = navigateToAppSettings,
+                        backdrop = scaffoldBackdrop
+                    ) {
+                        Icon(
+                            imageVector = LocalIcons.current.Settings,
+                            contentDescription = "Settings",
+                            tint = MaterialTheme.colorScheme.onBackground
+                        )
+                    }
+                }
+            }
+        )
+    ) { topPadding, bottomPadding ->
         Column(
             modifier = Modifier
                 .padding(horizontal = 16.dp)
@@ -463,4 +473,5 @@ fun DeviceListScreen(
 
             Spacer(modifier = Modifier.padding(top = bottomPadding))
         }
+    }
 }

android/app/src/main/kotlin/me/kavishdevar/librepods/presentation/screens/LoadingScreen.kt

@@ -1,35 +0,0 @@
-package me.kavishdevar.librepods.presentation.screens
-
-import androidx.compose.foundation.background
-import androidx.compose.foundation.layout.Box
-import androidx.compose.foundation.layout.size
-import androidx.compose.material3.CircularWavyProgressIndicator
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.runtime.Composable
-import androidx.compose.ui.Alignment
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.tooling.preview.Preview
-import androidx.compose.ui.unit.dp
-import me.kavishdevar.librepods.presentation.theme.LibrePodsTheme
-
-@Composable
-fun LoadingScreen() {
-    Box(
-        modifier = Modifier
-            .background(MaterialTheme.colorScheme.surfaceContainer),
-        contentAlignment = Alignment.Center
-    ) {
-        CircularWavyProgressIndicator(
-            modifier = Modifier
-                .size(120.dp)
-        )
-    }
-}
-
-@Preview
-@Composable
-fun LoadingScreenPreview() {
-    LibrePodsTheme {
-        LoadingScreen()
-    }
-}

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

@@ -43,6 +43,7 @@ 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.res.stringResource
 import androidx.compose.ui.unit.dp
 import com.mikepenz.aboutlibraries.ui.compose.LibrariesContainer
 import com.mikepenz.aboutlibraries.ui.compose.LibraryDefaults
@@ -57,15 +58,18 @@ import com.mikepenz.aboutlibraries.ui.compose.variant.LibraryDetailMode
 import com.mikepenz.aboutlibraries.ui.compose.variant.LibraryInlineDetail
 import com.mikepenz.aboutlibraries.ui.compose.variant.LibraryRow
 import me.kavishdevar.librepods.R
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
 import me.kavishdevar.librepods.presentation.theme.DesignSystem
 import me.kavishdevar.librepods.presentation.theme.LocalDesignSystem
 
 @Composable
-fun OpenSourceLicensesScreen() {
+fun OpenSourceLicensesScreen(
-    val m3eEnabled = LocalDesignSystem.current == DesignSystem.Material
+    navigateBack: (() -> Unit)?
-    val topPadding = if (m3eEnabled) 0.dp else WindowInsets.statusBars.asPaddingValues().calculateTopPadding() + 84.dp
+) {
-    val bottomPadding = WindowInsets.navigationBars.asPaddingValues().calculateBottomPadding() + 12.dp
+    StyledScaffold(
-
+        title = stringResource(R.string.open_source_licenses),
+        navigateBack = navigateBack
+    ) { topPadding, bottomPadding ->
         Column(
             modifier = Modifier
                 .fillMaxSize()
@@ -184,4 +188,5 @@ fun OpenSourceLicensesScreen() {
 
             Spacer(Modifier.height(bottomPadding))
         }
+    }
 }

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

@@ -36,7 +36,6 @@ import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
-import androidx.compose.runtime.snapshots.SnapshotStateList
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.stringResource
@@ -45,12 +44,12 @@ import androidx.lifecycle.viewmodel.compose.viewModel
 import com.kyant.backdrop.backdrops.layerBackdrop
 import com.kyant.backdrop.backdrops.rememberLayerBackdrop
 import me.kavishdevar.librepods.R
-import me.kavishdevar.librepods.presentation.components.StyledListItemOrientation
 import me.kavishdevar.librepods.presentation.components.MaterialButtonStyle
 import me.kavishdevar.librepods.presentation.components.StyledButton
 import me.kavishdevar.librepods.presentation.components.StyledList
 import me.kavishdevar.librepods.presentation.components.StyledListItem
-import me.kavishdevar.librepods.presentation.navigation.Screen
+import me.kavishdevar.librepods.presentation.components.StyledListItemOrientation
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
 import me.kavishdevar.librepods.presentation.theme.DesignSystem
 import me.kavishdevar.librepods.presentation.theme.LocalDesignSystem
 import me.kavishdevar.librepods.presentation.viewmodel.PurchaseViewModel
@@ -59,7 +58,7 @@ import me.kavishdevar.librepods.utils.XposedState
 @Composable
 fun PurchaseScreen(
     viewModel: PurchaseViewModel = viewModel(),
-    backStack: SnapshotStateList<Screen>
+    navigateBack: (() -> Unit)?,
 ) {
     val context = LocalContext.current
     val scrollState = rememberScrollState()
@@ -68,10 +67,10 @@ fun PurchaseScreen(
 
     val backdrop = rememberLayerBackdrop()
 
-    val m3eEnabled = LocalDesignSystem.current == DesignSystem.Material
+    StyledScaffold(
-    val topPadding = if (m3eEnabled) 0.dp else WindowInsets.statusBars.asPaddingValues().calculateTopPadding() + 84.dp
+        title = stringResource(R.string.unlock_advanced_features),
-    val bottomPadding = WindowInsets.navigationBars.asPaddingValues().calculateBottomPadding() + 12.dp
+        navigateBack = navigateBack
-
+    ) { topPadding, bottomPadding ->
         Column(
             modifier = Modifier
                 .layerBackdrop(backdrop)
@@ -83,9 +82,7 @@ fun PurchaseScreen(
 
             LaunchedEffect(state.isPremium) {
                 if (state.isPremium) {
-                if (backStack.size > 1) {
+                    navigateBack?.invoke()
-                    backStack.removeAt(backStack.lastIndex)
-                }
                 }
             }
             if (!state.isPremium) {
@@ -214,4 +211,5 @@ fun PurchaseScreen(
             }
             Spacer(modifier = Modifier.height(bottomPadding))
         }
+    }
 }

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

@@ -1,922 +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.presentation.screens
-
-import android.content.Intent
-import android.widget.Toast
-import androidx.activity.compose.rememberLauncherForActivityResult
-import androidx.activity.result.contract.ActivityResultContracts
-import androidx.compose.animation.AnimatedVisibility
-import androidx.compose.animation.core.animateFloatAsState
-import androidx.compose.animation.core.tween
-import androidx.compose.animation.fadeIn
-import androidx.compose.animation.fadeOut
-import androidx.compose.animation.slideInVertically
-import androidx.compose.animation.slideOutVertically
-import androidx.compose.foundation.background
-import androidx.compose.foundation.clickable
-import androidx.compose.foundation.horizontalScroll
-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.WindowInsets
-import androidx.compose.foundation.layout.asPaddingValues
-import androidx.compose.foundation.layout.fillMaxSize
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.navigationBars
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.statusBars
-import androidx.compose.foundation.layout.width
-import androidx.compose.foundation.rememberScrollState
-import androidx.compose.foundation.shape.RoundedCornerShape
-import androidx.compose.foundation.verticalScroll
-import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.filled.Delete
-import androidx.compose.material.icons.filled.Share
-import androidx.compose.material3.AlertDialog
-import androidx.compose.material3.Button
-import androidx.compose.material3.ButtonDefaults
-import androidx.compose.material3.CircularProgressIndicator
-import androidx.compose.material3.ExperimentalMaterial3Api
-import androidx.compose.material3.Icon
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.ModalBottomSheet
-import androidx.compose.material3.Text
-import androidx.compose.material3.TextButton
-import androidx.compose.material3.rememberModalBottomSheetState
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.DisposableEffect
-import androidx.compose.runtime.LaunchedEffect
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableIntStateOf
-import androidx.compose.runtime.mutableStateListOf
-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.graphics.vector.ImageVector
-import androidx.compose.ui.platform.LocalContext
-import androidx.compose.ui.res.painterResource
-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.TextOverflow
-import androidx.compose.ui.unit.dp
-import androidx.compose.ui.unit.sp
-import androidx.core.content.FileProvider
-import com.kyant.backdrop.backdrops.layerBackdrop
-import com.kyant.backdrop.backdrops.rememberLayerBackdrop
-import dev.chrisbanes.haze.materials.ExperimentalHazeMaterialsApi
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.delay
-import kotlinx.coroutines.launch
-import kotlinx.coroutines.withContext
-import me.kavishdevar.librepods.R
-import me.kavishdevar.librepods.presentation.icons.LocalIcons
-import me.kavishdevar.librepods.utils.LogCollector
-import java.io.File
-import java.text.SimpleDateFormat
-import java.util.Date
-import java.util.Locale
-
-@Composable
-fun CustomIconButton(
-    onClick: () -> Unit,
-    content: @Composable () -> Unit
-) {
-    Box(
-        modifier = Modifier
-            .clickable(onClick = onClick)
-            .padding(8.dp),
-        contentAlignment = Alignment.Center
-    ) {
-        content()
-    }
-}
-
-@OptIn(ExperimentalMaterial3Api::class, ExperimentalHazeMaterialsApi::class)
-@Composable
-fun TroubleshootingScreen() {
-    val context = LocalContext.current
-    val scrollState = rememberScrollState()
-    val coroutineScope = rememberCoroutineScope()
-
-    val logCollector = remember { LogCollector(context) }
-    val savedLogs = remember { mutableStateListOf<File>() }
-
-    var isCollectingLogs by remember { mutableStateOf(false) }
-    var showTroubleshootingSteps by remember { mutableStateOf(false) }
-    var currentStep by remember { mutableIntStateOf(0) }
-    var logContent by remember { mutableStateOf("") }
-    var selectedLogFile by remember { mutableStateOf<File?>(null) }
-    var showDeleteDialog by remember { mutableStateOf(false) }
-    var showDeleteAllDialog by remember { mutableStateOf(false) }
-    var isLoadingLogContent by remember { mutableStateOf(false) }
-    var logContentLoaded by remember { mutableStateOf(false) }
-
-    LaunchedEffect(isCollectingLogs) {
-        while (isCollectingLogs) {
-            delay(250)
-            delay(250)
-        }
-    }
-
-    val sheetState = rememberModalBottomSheetState(skipPartiallyExpanded = false)
-    var showBottomSheet by remember { mutableStateOf(false) }
-
-    val backgroundColor = if (isSystemInDarkTheme()) Color(0xFF1C1C1E) else Color(0xFFFFFFFF)
-    val textColor = if (isSystemInDarkTheme()) Color.White else Color.Black
-    val accentColor = if (isSystemInDarkTheme()) Color(0xFF007AFF) else Color(0xFF3C6DF5)
-    val buttonBgColor = if (isSystemInDarkTheme()) Color(0xFF333333) else Color(0xFFDDDDDD)
-
-    var instructionText by remember { mutableStateOf("") }
-    val isDarkTheme = isSystemInDarkTheme()
-
-    LaunchedEffect(Unit) {
-        withContext(Dispatchers.IO) {
-            val logsDir = File(context.filesDir, "logs")
-            if (logsDir.exists()) {
-                savedLogs.clear()
-                savedLogs.addAll(logsDir.listFiles()?.filter { it.name.endsWith(".txt") }
-                    ?.sortedByDescending { it.lastModified() } ?: emptyList())
-            }
-        }
-    }
-
-    val saveLauncher = rememberLauncherForActivityResult(
-        contract = ActivityResultContracts.CreateDocument("text/plain")
-    ) { uri ->
-        if (uri != null) {
-            coroutineScope.launch(Dispatchers.IO) {
-                try {
-                    context.contentResolver.openOutputStream(uri)?.use { outputStream ->
-                        outputStream.write(logContent.toByteArray())
-                    }
-                    withContext(Dispatchers.Main) {
-                        Toast.makeText(context, "Log saved successfully", Toast.LENGTH_SHORT).show()
-                    }
-                } catch (e: Exception) {
-                    withContext(Dispatchers.Main) {
-                        Toast.makeText(
-                            context,
-                            "Failed to save log: ${e.localizedMessage}",
-                            Toast.LENGTH_SHORT
-                        ).show()
-                    }
-                }
-            }
-        }
-    }
-
-    LaunchedEffect(currentStep) {
-        instructionText = when (currentStep) {
-            0 -> "First, let's ensure Xposed module is properly configured. Tap the button below to check Xposed scope settings."
-            1 -> "Please put your AirPods in the case and close it, so they disconnect completely."
-            2 -> "Preparing to collect logs... Please wait."
-            3 -> "Now, open the AirPods case and connect your AirPods. Logs are being collected. Connection will be detected automatically, or you can manually stop logging when you're done."
-            4 -> "Log collection complete! You can now save or share the logs."
-            else -> ""
-        }
-    }
-
-    fun openLogBottomSheet(file: File) {
-        selectedLogFile = file
-        logContent = ""
-        isLoadingLogContent = false
-        logContentLoaded = false
-        showBottomSheet = true
-    }
-
-    val backdrop = rememberLayerBackdrop()
-
-    Box(
-        modifier = Modifier.fillMaxSize()
-    ) {
-        val topPadding = WindowInsets.statusBars.asPaddingValues().calculateTopPadding() + 84.dp
-        val bottomPadding = WindowInsets.navigationBars.asPaddingValues().calculateBottomPadding() + 12.dp
-
-        Column(
-            modifier = Modifier
-                .fillMaxSize()
-                .layerBackdrop(backdrop)
-                .verticalScroll(scrollState)
-                .background(MaterialTheme.colorScheme.surfaceContainer)
-                .padding(horizontal = 16.dp)
-        ) {
-            Spacer(modifier = Modifier.height(topPadding))
-
-            Text(
-                text = stringResource(R.string.saved_logs),
-                style = TextStyle(
-                    fontSize = 14.sp,
-                    fontWeight = FontWeight.Bold,
-                    color = textColor.copy(alpha = 0.6f),
-                    fontFamily = FontFamily(Font(R.font.inter))
-                ),
-                modifier = Modifier.padding(16.dp, bottom = 4.dp, top = 8.dp)
-            )
-
-            Spacer(modifier = Modifier.height(2.dp))
-
-            if (savedLogs.isEmpty()) {
-                Column(
-                    modifier = Modifier
-                        .fillMaxWidth()
-                        .background(
-                            backgroundColor,
-                            RoundedCornerShape(28.dp)
-                        )
-                        .padding(16.dp),
-                    horizontalAlignment = Alignment.CenterHorizontally
-                ) {
-                    Text(
-                        text = stringResource(R.string.no_logs_found),
-                        fontSize = 16.sp,
-                        color = textColor
-                    )
-                }
-            } else {
-                Column(
-                    modifier = Modifier
-                        .fillMaxWidth()
-                        .background(
-                            backgroundColor,
-                            RoundedCornerShape(28.dp)
-                        )
-                        .padding(horizontal = 16.dp, vertical = 8.dp)
-                ) {
-                    Row(
-                        modifier = Modifier
-                            .fillMaxWidth()
-                            .padding(vertical = 8.dp),
-                        horizontalArrangement = Arrangement.SpaceBetween,
-                        verticalAlignment = Alignment.CenterVertically
-                    ) {
-                        Text(
-                            text = "Total Logs: ${savedLogs.size}",
-                            fontSize = 16.sp,
-                            fontWeight = FontWeight.Medium,
-                            color = textColor
-                        )
-
-                        if (savedLogs.size > 1) {
-                            TextButton(
-                                onClick = { showDeleteAllDialog = true },
-                                colors = ButtonDefaults.textButtonColors(
-                                    contentColor = MaterialTheme.colorScheme.error
-                                )
-                            ) {
-                                Text("Delete All")
-                            }
-                        }
-                    }
-
-                    savedLogs.forEach { logFile ->
-                        Row(
-                            modifier = Modifier
-                                .fillMaxWidth()
-                                .padding(vertical = 8.dp)
-                                .clickable {
-                                    openLogBottomSheet(logFile)
-                                },
-                            verticalAlignment = Alignment.CenterVertically
-                        ) {
-                            Column(modifier = Modifier.weight(1f)) {
-                                Text(
-                                    text = logFile.name,
-                                    fontSize = 16.sp,
-                                    color = textColor,
-                                    maxLines = 1,
-                                    overflow = TextOverflow.Ellipsis
-                                )
-
-                                Text(
-                                    text = SimpleDateFormat("MMM dd, yyyy HH:mm", Locale.US)
-                                        .format(Date(logFile.lastModified())),
-                                    fontSize = 14.sp,
-                                    color = textColor.copy(alpha = 0.6f)
-                                )
-                            }
-
-                            CustomIconButton(
-                                onClick = {
-                                    selectedLogFile = logFile
-                                    showDeleteDialog = true
-                                }
-                            ) {
-                                Icon(
-                                    Icons.Default.Delete,
-                                    contentDescription = "Delete",
-                                    tint = MaterialTheme.colorScheme.error
-                                )
-                            }
-                        }
-                    }
-                }
-            }
-
-            Spacer(modifier = Modifier.height(16.dp))
-
-            AnimatedVisibility(
-                visible = !showTroubleshootingSteps,
-                enter = fadeIn(animationSpec = tween(300)),
-                exit = fadeOut(animationSpec = tween(300))
-            ) {
-                Button(
-                    onClick = { showTroubleshootingSteps = true },
-                    modifier = Modifier.fillMaxWidth(),
-                    shape = RoundedCornerShape(10.dp),
-                    colors = ButtonDefaults.buttonColors(
-                        containerColor = buttonBgColor,
-                        contentColor = textColor
-                    ),
-                    enabled = !isCollectingLogs
-                ) {
-                    Text(stringResource(R.string.collect_logs))
-                }
-            }
-
-            AnimatedVisibility(
-                visible = showTroubleshootingSteps,
-                enter = fadeIn(animationSpec = tween(300)) +
-                    slideInVertically(animationSpec = tween(300)) { it / 2 },
-                exit = fadeOut(animationSpec = tween(300)) +
-                    slideOutVertically(animationSpec = tween(300)) { it / 2 }
-            ) {
-                Column {
-                    Spacer(modifier = Modifier.height(16.dp))
-
-                    Text(
-                        text = stringResource(R.string.troubleshooting_steps),
-                        style = TextStyle(
-                            fontSize = 14.sp,
-                            fontWeight = FontWeight.Light,
-                            color = textColor.copy(alpha = 0.6f),
-                            fontFamily = FontFamily(Font(R.font.inter))
-                        ),
-                        modifier = Modifier.padding(16.dp, bottom = 2.dp, top = 8.dp)
-                    )
-
-                    Spacer(modifier = Modifier.height(2.dp))
-
-                    Column(
-                        modifier = Modifier
-                            .fillMaxWidth()
-                            .background(
-                                backgroundColor,
-                                RoundedCornerShape(28.dp)
-                            )
-                            .padding(16.dp)
-                    ) {
-                        val textAlpha = animateFloatAsState(
-                            targetValue = 1f,
-                            animationSpec = tween(durationMillis = 300),
-                            label = "textAlpha"
-                        )
-
-                        Text(
-                            text = instructionText,
-                            fontSize = 16.sp,
-                            color = textColor.copy(alpha = textAlpha.value),
-                            lineHeight = 22.sp
-                        )
-
-                        Spacer(modifier = Modifier.height(16.dp))
-
-                        when (currentStep) {
-                            0 -> {
-                                Button(
-                                    onClick = {
-                                        coroutineScope.launch {
-                                            logCollector.openXposedSettings(context)
-                                            delay(2000)
-                                            currentStep = 1
-                                        }
-                                    },
-                                    modifier = Modifier.fillMaxWidth(),
-                                    shape = RoundedCornerShape(10.dp),
-                                    colors = ButtonDefaults.buttonColors(
-                                        containerColor = buttonBgColor,
-                                        contentColor = textColor
-                                    )
-                                ) {
-                                    Text("Open Xposed Settings")
-                                }
-                            }
-
-                            1 -> {
-                                Button(
-                                    onClick = {
-                                        currentStep = 2
-                                        isCollectingLogs = true
-
-                                        coroutineScope.launch {
-                                            try {
-                                                logCollector.clearLogs()
-
-                                                logCollector.addLogMarker(LogCollector.LogMarkerType.START)
-
-                                                logCollector.killBluetoothService()
-
-                                                withContext(Dispatchers.Main) {
-                                                    delay(500)
-                                                    currentStep = 3
-                                                }
-
-                                                val timestamp = SimpleDateFormat(
-                                                    "yyyyMMdd_HHmmss",
-                                                    Locale.US
-                                                ).format(Date())
-
-                                                logContent =
-                                                    logCollector.startLogCollection(
-                                                        listener = { /* Removed live log display */ },
-                                                        connectionDetectedCallback = {
-                                                            launch {
-                                                                delay(5000)
-                                                                withContext(Dispatchers.Main) {
-                                                                    if (isCollectingLogs) {
-                                                                        logCollector.stopLogCollection()
-                                                                        currentStep = 4
-                                                                        isCollectingLogs =
-                                                                            false
-                                                                    }
-                                                                }
-                                                            }
-                                                        }
-                                                    )
-
-                                                val logFile =
-                                                    logCollector.saveLogToInternalStorage(
-                                                        "airpods_log_$timestamp.txt",
-                                                        logContent
-                                                    )
-                                                logFile?.let {
-                                                    withContext(Dispatchers.Main) {
-                                                        savedLogs.add(0, it)
-                                                        selectedLogFile = it
-                                                        Toast.makeText(
-                                                            context,
-                                                            "Log saved: ${it.name}",
-                                                            Toast.LENGTH_SHORT
-                                                        ).show()
-                                                    }
-                                                }
-                                            } catch (e: Exception) {
-                                                withContext(Dispatchers.Main) {
-                                                    Toast.makeText(
-                                                        context,
-                                                        "Error collecting logs: ${e.message}",
-                                                        Toast.LENGTH_SHORT
-                                                    ).show()
-                                                    isCollectingLogs = false
-                                                    currentStep = 0
-                                                }
-                                            }
-                                        }
-                                    },
-                                    modifier = Modifier.fillMaxWidth(),
-                                    shape = RoundedCornerShape(10.dp),
-                                    colors = ButtonDefaults.buttonColors(
-                                        containerColor = buttonBgColor,
-                                        contentColor = textColor
-                                    )
-                                ) {
-                                    Text("Continue")
-                                }
-                            }
-
-                            2, 3 -> {
-                                Column(
-                                    modifier = Modifier.fillMaxWidth(),
-                                    horizontalAlignment = Alignment.CenterHorizontally
-                                ) {
-                                    CircularProgressIndicator(
-                                        color = accentColor
-                                    )
-
-                                    Spacer(modifier = Modifier.height(8.dp))
-
-                                    Text(
-                                        text = if (currentStep == 2) "Preparing..." else "Collecting logs...",
-                                        fontSize = 14.sp,
-                                        color = textColor
-                                    )
-
-                                    if (currentStep == 3) {
-                                        Spacer(modifier = Modifier.height(16.dp))
-
-                                        Button(
-                                            onClick = {
-                                                coroutineScope.launch {
-                                                    logCollector.addLogMarker(
-                                                        LogCollector.LogMarkerType.CUSTOM,
-                                                        "Manual stop requested by user"
-                                                    )
-                                                    delay(1000)
-                                                    logCollector.stopLogCollection()
-                                                    delay(500)
-
-                                                    withContext(Dispatchers.Main) {
-                                                        currentStep = 4
-                                                        isCollectingLogs = false
-                                                        Toast.makeText(
-                                                            context,
-                                                            "Log collection stopped",
-                                                            Toast.LENGTH_SHORT
-                                                        ).show()
-                                                    }
-                                                }
-                                            },
-                                            shape = RoundedCornerShape(10.dp),
-                                            colors = ButtonDefaults.buttonColors(
-                                                containerColor = buttonBgColor,
-                                                contentColor = textColor
-                                            ),
-                                            modifier = Modifier
-                                                .fillMaxWidth()
-                                        ) {
-                                            Text("Stop Collection")
-                                        }
-                                    }
-                                }
-                            }
-
-                            4 -> {
-                                Row(
-                                    modifier = Modifier.fillMaxWidth(),
-                                    horizontalArrangement = Arrangement.Center
-                                ) {
-                                    Button(
-                                        onClick = {
-                                            selectedLogFile?.let { file ->
-                                                val fileUri = FileProvider.getUriForFile(
-                                                    context,
-                                                    "${context.packageName}.provider",
-                                                    file
-                                                )
-                                                val shareIntent =
-                                                    Intent(Intent.ACTION_SEND).apply {
-                                                        type = "text/plain"
-                                                        putExtra(
-                                                            Intent.EXTRA_STREAM,
-                                                            fileUri
-                                                        )
-                                                        addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
-                                                    }
-                                                context.startActivity(
-                                                    Intent.createChooser(
-                                                        shareIntent,
-                                                        "Share log file"
-                                                    )
-                                                )
-                                            }
-                                        },
-                                        shape = RoundedCornerShape(10.dp),
-                                        colors = ButtonDefaults.buttonColors(
-                                            containerColor = buttonBgColor,
-                                            contentColor = textColor
-                                        ),
-                                        modifier = Modifier.width(150.dp)
-                                    ) {
-                                        Icon(
-                                            imageVector = Icons.Default.Share,
-                                            contentDescription = "Share"
-                                        )
-                                        Spacer(modifier = Modifier.width(8.dp))
-                                        Text("Share")
-                                    }
-
-                                    Spacer(modifier = Modifier.width(16.dp))
-
-                                    Button(
-                                        onClick = {
-                                            selectedLogFile?.let { file ->
-                                                saveLauncher.launch(
-                                                    file.absolutePath
-                                                )
-                                            }
-                                        },
-                                        shape = RoundedCornerShape(10.dp),
-                                        colors = ButtonDefaults.buttonColors(
-                                            containerColor = buttonBgColor,
-                                            contentColor = textColor
-                                        ),
-                                        modifier = Modifier.width(150.dp)
-                                    ) {
-                                        Icon(
-                                            imageVector = LocalIcons.current.Save,
-                                            contentDescription = "Save"
-                                        )
-                                        Spacer(modifier = Modifier.width(8.dp))
-                                        Text("Save")
-                                    }
-                                }
-
-                                Spacer(modifier = Modifier.height(16.dp))
-
-                                Button(
-                                    onClick = {
-                                        currentStep = 0
-                                        showTroubleshootingSteps = false
-                                    },
-                                    modifier = Modifier.fillMaxWidth(),
-                                    shape = RoundedCornerShape(10.dp),
-                                    colors = ButtonDefaults.buttonColors(
-                                        containerColor = buttonBgColor,
-                                        contentColor = textColor
-                                    )
-                                ) {
-                                    Text("Done")
-                                }
-                            }
-                        }
-                    }
-                }
-            }
-
-            if (showDeleteDialog && selectedLogFile != null) {
-                AlertDialog(
-                    onDismissRequest = { showDeleteDialog = false },
-                    title = { Text("Delete Log File") },
-                    text = {
-                        Text("Are you sure you want to delete this log file? This action cannot be undone.")
-                    },
-                    confirmButton = {
-                        TextButton(
-                            onClick = {
-                                selectedLogFile?.let { file ->
-                                    if (file.delete()) {
-                                        savedLogs.remove(file)
-                                        Toast.makeText(
-                                            context,
-                                            "Log file deleted",
-                                            Toast.LENGTH_SHORT
-                                        )
-                                            .show()
-                                    } else {
-                                        Toast.makeText(
-                                            context,
-                                            "Failed to delete log file",
-                                            Toast.LENGTH_SHORT
-                                        ).show()
-                                    }
-                                }
-                                showDeleteDialog = false
-                            }
-                        ) {
-                            Text("Delete", color = MaterialTheme.colorScheme.error)
-                        }
-                    },
-                    dismissButton = {
-                        TextButton(onClick = { showDeleteDialog = false }) {
-                            Text("Cancel")
-                        }
-                    }
-                )
-            }
-
-            if (showDeleteAllDialog) {
-                AlertDialog(
-                    onDismissRequest = { showDeleteAllDialog = false },
-                    title = { Text("Delete All Logs") },
-                    text = {
-                        Text("Are you sure you want to delete all log files? This action cannot be undone and will remove ${savedLogs.size} log files.")
-                    },
-                    confirmButton = {
-                        TextButton(
-                            onClick = {
-                                coroutineScope.launch(Dispatchers.IO) {
-                                    var deletedCount = 0
-                                    savedLogs.forEach { file ->
-                                        if (file.delete()) {
-                                            deletedCount++
-                                        }
-                                    }
-                                    withContext(Dispatchers.Main) {
-                                        if (deletedCount > 0) {
-                                            savedLogs.clear()
-                                            Toast.makeText(
-                                                context,
-                                                "Deleted $deletedCount log files",
-                                                Toast.LENGTH_SHORT
-                                            ).show()
-                                        } else {
-                                            Toast.makeText(
-                                                context,
-                                                "Failed to delete log files",
-                                                Toast.LENGTH_SHORT
-                                            ).show()
-                                        }
-                                    }
-                                }
-                                showDeleteAllDialog = false
-                            }
-                        ) {
-                            Text("Delete All", color = MaterialTheme.colorScheme.error)
-                        }
-                    },
-                    dismissButton = {
-                        TextButton(onClick = { showDeleteAllDialog = false }) {
-                            Text("Cancel")
-                        }
-                    }
-                )
-            }
-
-            Spacer(modifier = Modifier.height(bottomPadding))
-        }
-
-        if (showBottomSheet) {
-            ModalBottomSheet(
-                onDismissRequest = { showBottomSheet = false },
-                sheetState = sheetState,
-                containerColor = if (isDarkTheme) Color(0xFF1C1C1E) else Color(0xFFF2F2F7),
-                shape = RoundedCornerShape(topStart = 28.dp, topEnd = 28.dp),
-                tonalElevation = 8.dp
-            ) {
-                LaunchedEffect(selectedLogFile) {
-                    if (!logContentLoaded) {
-                        delay(300)
-                        withContext(Dispatchers.IO) {
-                            isLoadingLogContent = true
-                            logContent = try {
-                                selectedLogFile?.readText() ?: ""
-                            } catch (e: Exception) {
-                                "Error loading log content: ${e.message}"
-                            }
-                            isLoadingLogContent = false
-                            logContentLoaded = true
-                        }
-                    }
-                }
-
-                Column(
-                    modifier = Modifier
-                        .fillMaxWidth()
-                        .padding(horizontal = 16.dp, vertical = 12.dp)
-                        .padding(bottom = 32.dp)
-                ) {
-                    Column(
-                        modifier = Modifier
-                            .fillMaxWidth()
-                            .padding(bottom = 12.dp),
-                    ) {
-                        Text(
-                            text = selectedLogFile?.name ?: "Log Content",
-                            style = TextStyle(
-                                fontWeight = FontWeight.Bold,
-                                fontSize = 20.sp,
-                                fontFamily = FontFamily(Font(R.font.inter))
-                            ),
-                            color = textColor
-                        )
-                        Text(
-                            text = SimpleDateFormat("MMM dd, yyyy HH:mm", Locale.US)
-                                .format(Date(selectedLogFile?.lastModified() ?: 0)),
-                            fontSize = 14.sp,
-                            color = textColor.copy(alpha = 0.7f),
-                            fontFamily = FontFamily(Font(R.font.inter))
-                        )
-                    }
-
-                    if (isLoadingLogContent) {
-                        Box(
-                            modifier = Modifier
-                                .fillMaxWidth()
-                                .height(300.dp),
-                            contentAlignment = Alignment.Center
-                        ) {
-                            CircularProgressIndicator(color = accentColor)
-                        }
-                    } else {
-                        Box(
-                            modifier = Modifier
-                                .fillMaxWidth()
-                                .height(300.dp)
-                                .background(
-                                    color = Color.Black,
-                                    shape = RoundedCornerShape(8.dp)
-                                )
-                        ) {
-                            val horizontalScrollState = rememberScrollState()
-                            val verticalScrollState = rememberScrollState()
-
-                            Box(
-                                modifier = Modifier
-                                    .fillMaxSize()
-                                    .padding(8.dp)
-                                    .horizontalScroll(horizontalScrollState)
-                                    .verticalScroll(verticalScrollState)
-                            ) {
-                                Text(
-                                    text = logContent,
-                                    fontSize = 14.sp,
-                                    color = Color.LightGray,
-                                    lineHeight = 20.sp,
-                                    fontFamily = FontFamily.Monospace,
-                                    softWrap = false
-                                )
-                            }
-                        }
-                    }
-
-                    Row(
-                        modifier = Modifier
-                            .fillMaxWidth()
-                            .padding(top = 16.dp),
-                        horizontalArrangement = Arrangement.spacedBy(12.dp)
-                    ) {
-                        Button(
-                            onClick = {
-                                selectedLogFile?.let { file ->
-                                    val fileUri = FileProvider.getUriForFile(
-                                        context,
-                                        "${context.packageName}.provider",
-                                        file
-                                    )
-                                    val shareIntent = Intent(Intent.ACTION_SEND).apply {
-                                        type = "text/plain"
-                                        putExtra(Intent.EXTRA_STREAM, fileUri)
-                                        addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
-                                    }
-                                    context.startActivity(
-                                        Intent.createChooser(
-                                            shareIntent,
-                                            "Share log file"
-                                        )
-                                    )
-                                }
-                            },
-                            shape = RoundedCornerShape(10.dp),
-                            colors = ButtonDefaults.buttonColors(
-                                containerColor = buttonBgColor,
-                                contentColor = textColor
-                            ),
-                            modifier = Modifier.weight(1f)
-                        ) {
-                            Icon(
-                                imageVector = Icons.Default.Share,
-                                contentDescription = "Share"
-                            )
-                            Spacer(modifier = Modifier.width(8.dp))
-                            Text("Share")
-                        }
-
-                        Button(
-                            onClick = {
-                                selectedLogFile?.let { file ->
-                                    saveLauncher.launch(file.absolutePath)
-                                }
-                            },
-                            shape = RoundedCornerShape(10.dp),
-                            colors = ButtonDefaults.buttonColors(
-                                containerColor = buttonBgColor,
-                                contentColor = textColor
-                            ),
-                            modifier = Modifier.weight(1f)
-                        ) {
-                            Icon(
-                                imageVector = LocalIcons.current.Save,
-                                contentDescription = "Save"
-                            )
-                            Spacer(modifier = Modifier.width(8.dp))
-                            Text("Save")
-                        }
-                    }
-                }
-            }
-        }
-    }
-
-    DisposableEffect(Unit) {
-        onDispose {
-            logCollector.stopLogCollection()
-        }
-    }
-}

android/app/src/main/kotlin/me/kavishdevar/librepods/presentation/screens/apple/AccessibilitySettingsScreen.kt

@@ -18,7 +18,6 @@
 
 package me.kavishdevar.librepods.presentation.screens.apple
 
-import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Spacer
@@ -56,6 +55,7 @@ import me.kavishdevar.librepods.devices.BaseCapability
 import me.kavishdevar.librepods.presentation.components.StyledButton
 import me.kavishdevar.librepods.presentation.components.StyledList
 import me.kavishdevar.librepods.presentation.components.StyledListItem
+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.icons.LocalIcons
@@ -67,7 +67,12 @@ import kotlin.time.Duration.Companion.milliseconds
 //private var phoneMediaDebounceJob: Job? = null
 
 @Composable
-fun AccessibilitySettingsScreen(viewModel: AppleViewModel, navigateToPurchase: () -> Unit, navigateToTransparencyCustomization: () -> Unit) {
+fun AccessibilitySettingsScreen(
+    viewModel: AppleViewModel,
+    navigateBack: (() -> Unit)?,
+    navigateToPurchase: () -> Unit,
+    navigateToTransparencyCustomization: () -> Unit
+) {
     val uiState by viewModel.uiState.collectAsState()
 
     val state = uiState.state
@@ -82,14 +87,13 @@ fun AccessibilitySettingsScreen(viewModel: AppleViewModel, navigateToPurchase: (
         )?.toInt() == 1
 
 
-    val m3eEnabled = LocalDesignSystem.current == DesignSystem.Material
+    StyledScaffold(
-    val topPadding = if (m3eEnabled) 0.dp else WindowInsets.statusBars.asPaddingValues().calculateTopPadding() + 84.dp
+        title = stringResource(R.string.accessibility),
-    val bottomPadding = WindowInsets.navigationBars.asPaddingValues().calculateBottomPadding() + 12.dp
+        navigateBack = navigateBack
-
+    ) { topPadding, bottomPadding ->
         Column(
             modifier = Modifier
                 .fillMaxSize()
-            .background(MaterialTheme.colorScheme.surfaceContainer)
                 .verticalScroll(rememberScrollState())
                 .padding(horizontal = 16.dp),
             verticalArrangement = Arrangement.spacedBy(8.dp)
@@ -572,4 +576,5 @@ fun AccessibilitySettingsScreen(viewModel: AppleViewModel, navigateToPurchase: (
 //            }
             Spacer(modifier = Modifier.height(bottomPadding))
         }
+    }
 }

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

@@ -18,7 +18,6 @@
 
 package me.kavishdevar.librepods.presentation.screens.apple
 
-import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Spacer
@@ -48,6 +47,7 @@ import kotlinx.coroutines.flow.debounce
 import me.kavishdevar.librepods.R
 import me.kavishdevar.librepods.bluetooth.aacp.types.ControlCommandIdentifier
 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.icons.LocalIcons
 import me.kavishdevar.librepods.presentation.theme.DesignSystem
@@ -56,21 +56,24 @@ import me.kavishdevar.librepods.presentation.viewmodel.AppleViewModel
 import kotlin.time.Duration.Companion.milliseconds
 
 @Composable
-fun AdaptiveStrengthScreen(viewModel: AppleViewModel, navigateToPurchase: () -> Unit) {
+fun AdaptiveStrengthScreen(
+    viewModel: AppleViewModel,
+    navigateBack: (() -> Unit)?,
+    navigateToPurchase: () -> Unit
+) {
     val uiState by viewModel.uiState.collectAsState()
     val state = uiState.state
 
     val backdrop = rememberLayerBackdrop()
 
-    val m3eEnabled = LocalDesignSystem.current == DesignSystem.Material
+    StyledScaffold(
-    val topPadding = if (m3eEnabled) 0.dp else WindowInsets.statusBars.asPaddingValues().calculateTopPadding() + 84.dp
+        title = stringResource(R.string.customize_adaptive_audio),
-    val bottomPadding = WindowInsets.navigationBars.asPaddingValues().calculateBottomPadding() + 12.dp
+        navigateBack = navigateBack
-
+    ) { topPadding, bottomPadding ->
         Column(
             modifier = Modifier
                 .fillMaxSize()
                 .layerBackdrop(backdrop)
-            .background(MaterialTheme.colorScheme.surfaceContainer)
                 .padding(horizontal = 16.dp),
             verticalArrangement = Arrangement.spacedBy(16.dp)
         ) {
@@ -107,7 +110,6 @@ fun AdaptiveStrengthScreen(viewModel: AppleViewModel, navigateToPurchase: () ->
             }
 
             StyledSlider(
-            label = stringResource(R.string.customize_adaptive_audio),
                 value = sliderValue.floatValue,
                 onValueChange = { sliderValue.floatValue = it },
                 valueRange = 0f..100f,
@@ -120,4 +122,5 @@ fun AdaptiveStrengthScreen(viewModel: AppleViewModel, navigateToPurchase: () ->
             )
             Spacer(modifier = Modifier.height(bottomPadding))
         }
+    }
 }

android/app/src/main/kotlin/me/kavishdevar/librepods/presentation/screens/apple/AppleSettingsScreen.kt

@@ -16,25 +16,17 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-@file:OptIn(ExperimentalEncodingApi::class)
-
 package me.kavishdevar.librepods.presentation.screens.apple
 
 import android.annotation.SuppressLint
 import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.WindowInsets
-import androidx.compose.foundation.layout.asPaddingValues
-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.navigationBars
 import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.statusBars
 import androidx.compose.foundation.lazy.LazyColumn
-import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
@@ -44,10 +36,8 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource
 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.dp
 import com.kyant.backdrop.backdrops.rememberLayerBackdrop
-import dev.chrisbanes.haze.materials.ExperimentalHazeMaterialsApi
 import me.kavishdevar.librepods.R
 import me.kavishdevar.librepods.bluetooth.aacp.types.ControlCommandIdentifier
 import me.kavishdevar.librepods.bluetooth.att.ATTHandle
@@ -59,22 +49,22 @@ 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.StyledListItemOrientation
 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.StyledListItem
+import me.kavishdevar.librepods.presentation.components.StyledListItemOrientation
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
 import me.kavishdevar.librepods.presentation.components.StyledToggle
 import me.kavishdevar.librepods.presentation.theme.DesignSystem
 import me.kavishdevar.librepods.presentation.theme.LibrePodsTheme
-import me.kavishdevar.librepods.presentation.theme.LocalDesignSystem
 import me.kavishdevar.librepods.presentation.viewmodel.AppleUiState
 import me.kavishdevar.librepods.presentation.viewmodel.AppleViewModel
-import kotlin.io.encoding.ExperimentalEncodingApi
 
 @Composable
-fun AirPodsSettingsRoute(
+fun AppleSettingsRoute(
     viewModel: AppleViewModel,
+    navigateBack: (() -> Unit)?,
     navigateToRename: () -> Unit,
     navigateToHearingProtection: () -> Unit,
     navigateToHearingAid: () -> Unit,
@@ -89,27 +79,14 @@ fun AirPodsSettingsRoute(
     navigateToCallControlScreen: (action: String) -> Unit,
     navigateToMicrophoneSettings: () -> Unit,
     navigateToRecordingScreen: () -> Unit,
-    navigateToDebugScreen: () -> Unit
+    navigateToDebugScreen: () -> Unit,
+    navigateToHeartRateScreen: () -> Unit
 ) {
     val uiState by viewModel.uiState.collectAsState()
 
-    val m3eEnabled = LocalDesignSystem.current == DesignSystem.Material
+    AppleSettingsScreen(
-    val topPadding = WindowInsets.statusBars.asPaddingValues()
-        .calculateTopPadding() + if (m3eEnabled) 0.dp else 84.dp
-    val bottomPadding =
-        WindowInsets.navigationBars.asPaddingValues().calculateBottomPadding() + 12.dp
-
-    Box(
-        modifier = Modifier
-            .fillMaxSize()
-            .background(MaterialTheme.colorScheme.surfaceContainer)
-    ) {
-        AirPodsSettingsScreen(
         uiState = uiState,
 
-            topPadding = topPadding,
-            bottomPadding = bottomPadding,
-
         setControlCommandInt = { id, value -> viewModel.setControlCommand(id, value) },
         setControlCommandBoolean = { id, value -> viewModel.setControlCommand(id, value) },
 //            setControlCommandByte = { id, value -> viewModel.setControlCommand(id, value) },
@@ -121,6 +98,7 @@ fun AirPodsSettingsRoute(
 //            onAutomaticConnectionChanged = viewModel::setAutomaticConnectionEnabled,
         disconnect = viewModel::disconnect,
 
+        navigateBack = navigateBack,
         navigateToRename = navigateToRename,
         navigateToHearingProtection = navigateToHearingProtection,
         navigateToHearingAid = navigateToHearingAid,
@@ -135,20 +113,16 @@ fun AirPodsSettingsRoute(
         navigateToCallControlScreen = navigateToCallControlScreen,
         navigateToMicrophoneSettings = navigateToMicrophoneSettings,
         navigateToRecordingScreen = navigateToRecordingScreen,
+        navigateToHeartRateScreen = navigateToHeartRateScreen,
         navigateToDebugScreen = navigateToDebugScreen
     )
-    }
 }
 
-@OptIn(ExperimentalMaterial3Api::class, ExperimentalHazeMaterialsApi::class)
 @SuppressLint("MissingPermission", "UnspecifiedRegisterReceiverFlag")
 @Composable
-fun AirPodsSettingsScreen(
+fun AppleSettingsScreen(
     uiState: AppleUiState,
 
-    topPadding: Dp = 16.dp,
-    bottomPadding: Dp = 16.dp,
-
     setControlCommandInt: (ControlCommandIdentifier, Int) -> Unit,
     setControlCommandBoolean: (ControlCommandIdentifier, Boolean) -> Unit,
 //        setControlCommandByte: (ControlCommandIdentifier, Byte) -> Unit,
@@ -161,6 +135,7 @@ fun AirPodsSettingsScreen(
 
     disconnect: () -> Unit,
 
+    navigateBack: (() -> Unit)?,
     navigateToRename: () -> Unit,
     navigateToHearingProtection: () -> Unit,
     navigateToHearingAid: () -> Unit,
@@ -175,6 +150,7 @@ fun AirPodsSettingsScreen(
     navigateToCallControlScreen: (action: String) -> Unit,
     navigateToMicrophoneSettings: () -> Unit,
     navigateToRecordingScreen: () -> Unit,
+    navigateToHeartRateScreen: () -> Unit,
     navigateToDebugScreen: () -> Unit
 ) {
     val state = uiState.state
@@ -185,10 +161,12 @@ fun AirPodsSettingsScreen(
 
     val baseCapabilities = spec.baseCapabilities
 
+    StyledScaffold(
+        title = uiState.metadata.name,
+        navigateBack = navigateBack
+    ) { topPadding, bottomPadding ->
         LazyColumn(
-        modifier = Modifier
+            modifier = Modifier.padding(horizontal = 16.dp),
-            .background(MaterialTheme.colorScheme.surfaceContainer)
-            .padding(horizontal = 16.dp),
         ) {
             item(key = "top_padding") { Spacer(modifier = Modifier.height(topPadding)) }
 
@@ -262,6 +240,19 @@ fun AirPodsSettingsScreen(
                 }
             }
 
+            if (baseCapabilities.contains(BaseCapability.HRM)) {
+                item(key = "spacer_heart_rate") {
+                    Spacer(modifier = Modifier.height(16.dp))
+                }
+                item(key = "heart_rate") {
+                    StyledListItem(
+                        contentText = stringResource(R.string.heart_rate),
+                        onClick = navigateToHeartRateScreen,
+                        supportingText = state.currentHeartRate?.let { "${it.bpm} bpm" }
+                    )
+                }
+            }
+
             if (baseCapabilities.contains(BaseCapability.STEM_CONFIG)) {
                 item(key = "spacer_press_hold") {
                     Spacer(modifier = Modifier.height(16.dp))
@@ -494,20 +485,24 @@ fun AirPodsSettingsScreen(
             }
 
             item(key = "spacer_debug") { Spacer(modifier = Modifier.height(16.dp)) }
+
+            if (uiState.appSettings.debugMode) {
                 item(key = "debug") {
                     StyledListItem(
                         contentText = "debug",
                         onClick = navigateToDebugScreen
                     )
                 }
+            }
 
             item(key = "bottom_padding") { Spacer(modifier = Modifier.height(bottomPadding)) }
         }
+    }
 }
 
 @Preview(name = "Apple")
 @Composable
-fun AirPodsSettingsScreenPreviewApple() {
+fun AppleSettingsScreenPreviewApple() {
     LibrePodsTheme(
         designSystem = DesignSystem.Apple
     ) {
@@ -515,7 +510,7 @@ fun AirPodsSettingsScreenPreviewApple() {
             modifier = Modifier
                 .background(MaterialTheme.colorScheme.surfaceContainer)
         ) {
-            AirPodsSettingsScreen(
+            AppleSettingsScreen(
                 uiState = AppleUiState(),
 
                 setControlCommandInt = { _, _ -> },
@@ -524,6 +519,7 @@ fun AirPodsSettingsScreenPreviewApple() {
 
                 disconnect = {},
 
+                navigateBack = null,
                 navigateToRename = {},
                 navigateToHearingProtection = {},
                 navigateToHearingAid = {},
@@ -538,6 +534,7 @@ fun AirPodsSettingsScreenPreviewApple() {
                 navigateToCallControlScreen = {},
                 navigateToMicrophoneSettings = {},
                 navigateToRecordingScreen = {},
+                navigateToHeartRateScreen = {},
                 navigateToDebugScreen = {}
             )
         }
@@ -547,7 +544,7 @@ fun AirPodsSettingsScreenPreviewApple() {
 
 @Preview(name = "Material")
 @Composable
-fun AirPodsSettingsScreenPreviewMaterial() {
+fun AppleSettingsScreenPreviewMaterial() {
     LibrePodsTheme(
         designSystem = DesignSystem.Material
     ) {
@@ -555,7 +552,7 @@ fun AirPodsSettingsScreenPreviewMaterial() {
             modifier = Modifier
                 .background(MaterialTheme.colorScheme.surfaceContainer)
         ) {
-            AirPodsSettingsScreen(
+            AppleSettingsScreen(
                 uiState = AppleUiState(),
 
                 setControlCommandInt = { _, _ -> },
@@ -564,6 +561,7 @@ fun AirPodsSettingsScreenPreviewMaterial() {
 
                 disconnect = {},
 
+                navigateBack = null,
                 navigateToRename = {},
                 navigateToHearingProtection = {},
                 navigateToHearingAid = {},
@@ -578,6 +576,7 @@ fun AirPodsSettingsScreenPreviewMaterial() {
                 navigateToCallControlScreen = {},
                 navigateToMicrophoneSettings = {},
                 navigateToRecordingScreen = {},
+                navigateToHeartRateScreen = {},
                 navigateToDebugScreen = {}
             )
         }

android/app/src/main/kotlin/me/kavishdevar/librepods/presentation/screens/apple/CallControlScreen.kt

@@ -1,19 +1,12 @@
 package me.kavishdevar.librepods.presentation.screens.apple
 
-import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.WindowInsets
-import androidx.compose.foundation.layout.asPaddingValues
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.navigationBars
 import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.statusBars
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.verticalScroll
-import androidx.compose.material3.ExperimentalMaterial3Api
-import androidx.compose.material3.MaterialTheme
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.derivedStateOf
@@ -28,27 +21,23 @@ import me.kavishdevar.librepods.R
 import me.kavishdevar.librepods.bluetooth.aacp.types.ControlCommandIdentifier
 import me.kavishdevar.librepods.presentation.components.StyledList
 import me.kavishdevar.librepods.presentation.components.StyledListItem
-import me.kavishdevar.librepods.presentation.theme.DesignSystem
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
-import me.kavishdevar.librepods.presentation.theme.LocalDesignSystem
 import me.kavishdevar.librepods.presentation.viewmodel.AppleViewModel
 
-@OptIn(ExperimentalMaterial3Api::class)
 @Composable
-fun CallControlScreen(viewModel: AppleViewModel, action: String, onCallControlValueChanged: (Boolean) -> Unit) {
+fun CallControlScreen(
+    viewModel: AppleViewModel,
+    action: String,
+    navigateBack: (() -> Unit)?,
+    onCallControlValueChanged: (Boolean) -> Unit
+) {
     val uiState by viewModel.uiState.collectAsState()
 
     val state = uiState.state
 
-    val m3eEnabled = LocalDesignSystem.current == DesignSystem.Material
-    val topPadding = if (m3eEnabled) 0.dp else WindowInsets.statusBars.asPaddingValues().calculateTopPadding() + 84.dp
-    val bottomPadding = WindowInsets.navigationBars.asPaddingValues().calculateBottomPadding() + 12.dp
-
     val scrollState = rememberScrollState()
 
-    val bytes =
+    val bytes = state.controlStates[ControlCommandIdentifier.CALL_MANAGEMENT_CONFIG]?.take(2)?.toByteArray() ?: byteArrayOf(0x00, 0x00)
-        state.controlStates[ControlCommandIdentifier.CALL_MANAGEMENT_CONFIG]?.take(
-            2
-        )?.toByteArray() ?: byteArrayOf(0x00, 0x00)
     val flipped = try {
         bytes[1] == 0x02.toByte()
     } catch (e: Exception) {
@@ -64,10 +53,13 @@ fun CallControlScreen(viewModel: AppleViewModel, action: String, onCallControlVa
     val pressOnceIsAction by remember { derivedStateOf { singlePressAction == pressOnceText } }
     val flippedValue = action != muteUnmuteText
 
+    StyledScaffold(
+        title = action,
+        navigateBack = navigateBack
+    ) { topPadding, bottomPadding ->
         Column(
             modifier = Modifier
                 .fillMaxSize()
-            .background(MaterialTheme.colorScheme.surfaceContainer)
                 .verticalScroll(scrollState)
                 .padding(top = 8.dp)
                 .padding(horizontal = 16.dp)
@@ -96,4 +88,5 @@ fun CallControlScreen(viewModel: AppleViewModel, action: String, onCallControlVa
 
             Spacer(modifier = Modifier.height(bottomPadding))
         }
+    }
 }

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

@@ -1,18 +1,12 @@
 package me.kavishdevar.librepods.presentation.screens.apple
 
 import android.util.Log
-import androidx.compose.foundation.background
 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.WindowInsets
-import androidx.compose.foundation.layout.asPaddingValues
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.navigationBars
 import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.statusBars
 import androidx.compose.foundation.text.input.TextFieldState
 import androidx.compose.foundation.text.input.delete
 import androidx.compose.material3.MaterialTheme
@@ -26,61 +20,59 @@ import androidx.compose.runtime.remember
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.focus.FocusRequester
 import androidx.compose.ui.text.style.TextAlign
-import androidx.compose.ui.unit.Dp
 import androidx.compose.ui.unit.dp
 import me.kavishdevar.librepods.bluetooth.aacp.packet.AACPPacketType
 import me.kavishdevar.librepods.bluetooth.aacp.packet.BatteryInfoPacket
 import me.kavishdevar.librepods.bluetooth.aacp.packet.ControlCommandPacket
 import me.kavishdevar.librepods.bluetooth.aacp.packet.EarDetectionResponsePacket
 import me.kavishdevar.librepods.bluetooth.aacp.packet.MagicKeyResponsePacket
+import me.kavishdevar.librepods.bluetooth.aacp.packet.RTBuddyPacket
 import me.kavishdevar.librepods.bluetooth.aacp.packet.RenamePacket
+import me.kavishdevar.librepods.bluetooth.aacp.rtbuddy.proto.SensorServiceType
 import me.kavishdevar.librepods.bluetooth.aacp.types.MessageOpcode
+import me.kavishdevar.librepods.bluetooth.aacp.types.RTBuddyDescriptor
+import me.kavishdevar.librepods.bluetooth.aacp.types.SensorDataWxBuddyPayload
 import me.kavishdevar.librepods.devices.DeviceComponent
 import me.kavishdevar.librepods.devices.PacketDestination
-import me.kavishdevar.librepods.presentation.components.StyledListItemOrientation
 import me.kavishdevar.librepods.presentation.components.StyledButton
 import me.kavishdevar.librepods.presentation.components.StyledInputField
 import me.kavishdevar.librepods.presentation.components.StyledList
 import me.kavishdevar.librepods.presentation.components.StyledListItem
+import me.kavishdevar.librepods.presentation.components.StyledListItemOrientation
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
 import me.kavishdevar.librepods.presentation.icons.richText
-import me.kavishdevar.librepods.presentation.theme.DesignSystem
-import me.kavishdevar.librepods.presentation.theme.LocalDesignSystem
 import me.kavishdevar.librepods.presentation.viewmodel.AppleUiState
 import me.kavishdevar.librepods.presentation.viewmodel.AppleViewModel
 import me.kavishdevar.librepods.utils.nonScaledSp
 
 @Composable
-fun DebugRoute(viewModel: AppleViewModel) {
+fun DebugRoute(
+    viewModel: AppleViewModel,
+    navigateBack: (() -> Unit)?
+) {
     val uiState by viewModel.uiState.collectAsState()
 
-    val m3eEnabled = LocalDesignSystem.current == DesignSystem.Material
-    val topPadding = if (m3eEnabled) 0.dp else WindowInsets.statusBars.asPaddingValues().calculateTopPadding() + 84.dp
-    val bottomPadding = WindowInsets.navigationBars.asPaddingValues().calculateBottomPadding() + 12.dp
-    Box (
-        modifier = Modifier
-            .fillMaxSize()
-            .background(MaterialTheme.colorScheme.surfaceContainer)
-    ) {
     DebugScreen(
         uiState = uiState,
-            topPadding = topPadding,
+        navigateBack = navigateBack,
-            bottomPadding = bottomPadding,
+        sendPacket = viewModel::sendRawPacket,
-            sendPacket = viewModel::sendRawPacket
     )
-    }
 }
 
 @Composable
 fun DebugScreen(
     uiState: AppleUiState,
-    topPadding: Dp = 16.dp,
+    navigateBack: (() -> Unit)?,
-    bottomPadding: Dp = 16.dp,
+    sendPacket: (ByteArray) -> Boolean,
-    sendPacket: (ByteArray) -> Boolean = { false }
 ) {
     val state = uiState.state
 
-    Log.d("DebugScreen", "Screen ${state.aacpPackets.size}")
+//    Log.d("DebugScreen", "Screen ${state.aacpPackets.size}")
 
+    StyledScaffold(
+        title = "debug",
+        navigateBack = navigateBack
+    ) { topPadding, bottomPadding ->
         Column(
             modifier = Modifier
                 .padding(horizontal = 16.dp)
@@ -203,6 +195,62 @@ fun DebugScreen(
                                             "Magic Keys (${packet.magicKeys.size})"
                                         }
 
+                                        is RTBuddyPacket -> {
+                                            val rtBuddyPayload = packet.rtBuddyPayload
+                                            when (rtBuddyPayload.descriptor) {
+                                                RTBuddyDescriptor.SENSOR_DATA_WX -> {
+                                                    val sensorDataWxBuddyPayload =
+                                                        rtBuddyPayload as SensorDataWxBuddyPayload
+                                                    val data = sensorDataWxBuddyPayload.data
+
+                                                    if (data.hasCommand()) {
+                                                        when (data.command.service) {
+                                                            SensorServiceType.ACTIVITY, SensorServiceType.DEVMOTION6 -> {
+                                                                val payload = data.command.payload.toByteArray()
+
+                                                                fun i16(offset: Int): Int =
+                                                                    (payload[offset].toInt() and 0xFF) or
+                                                                        ((payload[offset + 1].toInt() and 0xFF) shl 8)
+                                                                            .let { value ->
+                                                                                if (value and 0x8000 != 0) value - 0x10000 else value
+                                                                            }
+
+                                                                fun vec3(offset: Int): String =
+                                                                    "(${i16(offset)}, ${i16(offset + 2)}, ${i16(offset + 4)})"
+
+                                                                """
+                                                                DEVMOTION
+                                                                  v0:  ${vec3(20)}
+                                                                  v1:  ${vec3(26)}
+                                                                  v2:  ${vec3(32)}
+                                                                  v3:  ${vec3(38)}
+                                                                  v4:  ${vec3(44)}
+                                                                """.trimIndent()
+                                                            }
+
+                                                            SensorServiceType.HEARTRATEv2 -> {
+                                                                val payload = data.command.payload.toByteArray()
+
+                                                                if (payload.size >= 11) {
+                                                                    val heartRate = payload[1].toInt() and 0xFF
+
+                                                                    "Possible HR: $heartRate, payload=${payload.toHexString()}"
+                                                                }  else "???"
+                                                            }
+
+                                                            else -> {
+                                                                "Unhandled sensor command service: ${data.command.service}"
+                                                            }
+                                                        }
+                                                    } else "?????"
+                                                }
+
+                                                else -> {
+                                                    "Unhandled descriptor: ${rtBuddyPayload.descriptor}"
+                                                }
+                                            }
+                                        }
+
                                         else -> packet.opcode.toString()
                                     }
                                 } else {
@@ -269,4 +317,5 @@ fun DebugScreen(
 
             Spacer(modifier = Modifier.padding(top = bottomPadding))
         }
+    }
 }

android/app/src/main/kotlin/me/kavishdevar/librepods/presentation/screens/apple/EqualizerScreen.kt

@@ -30,20 +30,15 @@ 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.WindowInsets
-import androidx.compose.foundation.layout.asPaddingValues
 import androidx.compose.foundation.layout.fillMaxHeight
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.navigationBars
 import androidx.compose.foundation.layout.offset
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
-import androidx.compose.foundation.layout.statusBars
 import androidx.compose.foundation.layout.visible
 import androidx.compose.foundation.layout.width
-import androidx.compose.foundation.layout.wrapContentHeight
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.foundation.shape.RoundedCornerShape
@@ -72,7 +67,6 @@ import androidx.compose.ui.platform.LocalDensity
 import androidx.compose.ui.res.stringResource
 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.IntOffset
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.util.lerp
@@ -86,9 +80,9 @@ import me.kavishdevar.librepods.R
 import me.kavishdevar.librepods.presentation.components.StyledButton
 import me.kavishdevar.librepods.presentation.components.StyledList
 import me.kavishdevar.librepods.presentation.components.StyledListItem
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
 import me.kavishdevar.librepods.presentation.theme.DesignSystem
 import me.kavishdevar.librepods.presentation.theme.LibrePodsTheme
-import me.kavishdevar.librepods.presentation.theme.LocalDesignSystem
 import me.kavishdevar.librepods.presentation.viewmodel.AppleUiState
 import me.kavishdevar.librepods.presentation.viewmodel.AppleViewModel
 import kotlin.math.abs
@@ -96,32 +90,23 @@ import kotlin.math.roundToInt
 import kotlin.time.Duration.Companion.milliseconds
 
 @Composable
-fun EqualizerRoute(viewModel: AppleViewModel) {
+fun EqualizerRoute(
+    viewModel: AppleViewModel,
+    navigateBack: (() -> Unit)?
+) {
     val uiState by viewModel.uiState.collectAsState()
 
-    val m3eEnabled = LocalDesignSystem.current == DesignSystem.Material
-    val topPadding = if (m3eEnabled) 0.dp else WindowInsets.statusBars.asPaddingValues().calculateTopPadding() + 84.dp
-    val bottomPadding = WindowInsets.navigationBars.asPaddingValues().calculateBottomPadding() + 12.dp
-
-    Box (
-        modifier = Modifier
-            .fillMaxSize()
-            .background(MaterialTheme.colorScheme.surfaceContainer)
-    ) {
     EqualizerScreen(
         uiState = uiState,
-            topPadding = topPadding,
+        navigateBack = navigateBack,
-            bottomPadding = bottomPadding,
         setCustomEqEnabled = viewModel::setCustomEqEnabled,
         setCustomEq = viewModel::setCustomEq
     )
-    }
 }
 @Composable
 fun EqualizerScreen(
     uiState: AppleUiState,
-    topPadding: Dp = 16.dp,
+    navigateBack: (() -> Unit)?,
-    bottomPadding: Dp = 16.dp,
     setCustomEqEnabled: (Boolean) -> Unit,
     setCustomEq: (Int, Int, Int) -> Unit
 ) {
@@ -131,6 +116,10 @@ fun EqualizerScreen(
 
     val scrollState = rememberScrollState()
 
+    StyledScaffold(
+        title = stringResource(R.string.equalizer),
+        navigateBack = navigateBack
+    ) { topPadding, bottomPadding ->
         Column(
             modifier = Modifier
                 .padding(horizontal = 16.dp)
@@ -228,6 +217,7 @@ fun EqualizerScreen(
 
             Spacer(modifier = Modifier.height(bottomPadding))
         }
+    }
 }
 
 
@@ -698,16 +688,13 @@ fun EqualizerScreenPreviewApple() {
     ) {
         val state = remember { mutableStateOf(AppleUiState()) }
 
-        Box (
-            modifier = Modifier.background(MaterialTheme.colorScheme.surfaceContainer)
-        ) {
         EqualizerScreen(
             uiState = state.value,
+            navigateBack = null,
             setCustomEqEnabled = { state.value = state.value.copy(state = state.value.state.copy(customEq = state.value.state.customEq.copy(state = if (it) 2 else 1))) },
             setCustomEq = {low, mid, high -> state.value = state.value.copy(state = state.value.state.copy(customEq = state.value.state.customEq.copy(low = low, mid = mid, high = high)))}
         )
     }
-    }
 }
 
 @Preview(name = "Material")
@@ -717,16 +704,12 @@ fun EqualizerScreenPreviewMaterial() {
         designSystem = DesignSystem.Material
     ) {
         val state = remember { mutableStateOf(AppleUiState()) }
-        Box (
+
-            modifier = Modifier
-                .wrapContentHeight()
-                .background(MaterialTheme.colorScheme.surfaceContainer)
-        ) {
         EqualizerScreen(
             uiState = state.value,
+            navigateBack = null,
             setCustomEqEnabled = { state.value = state.value.copy(state = state.value.state.copy(customEq = state.value.state.customEq.copy(state = if (it) 2 else 1))) },
             setCustomEq = {low, mid, high -> state.value = state.value.copy(state = state.value.state.copy(customEq = state.value.state.customEq.copy(low = low, mid = mid, high = high)))}
         )
     }
-    }
 }

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

@@ -32,26 +32,28 @@ import androidx.compose.animation.fadeOut
 import androidx.compose.animation.slideInVertically
 import androidx.compose.animation.togetherWith
 import androidx.compose.foundation.Canvas
-import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.WindowInsets
-import androidx.compose.foundation.layout.asPaddingValues
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.navigationBars
 import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.statusBars
+import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.foundation.verticalScroll
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.PlayArrow
 import androidx.compose.material3.Card
 import androidx.compose.material3.CardDefaults
 import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.FilledTonalIconToggleButton
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButtonDefaults
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
+import androidx.compose.material3.minimumInteractiveComponentSize
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.DisposableEffect
 import androidx.compose.runtime.LaunchedEffect
@@ -64,6 +66,7 @@ import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.runtime.setValue
+import androidx.compose.runtime.snapshotFlow
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.geometry.Offset
@@ -78,14 +81,17 @@ import com.kyant.backdrop.backdrops.rememberLayerBackdrop
 import dev.chrisbanes.haze.materials.ExperimentalHazeMaterialsApi
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.delay
-import kotlinx.coroutines.flow.filterIsInstance
+import kotlinx.coroutines.flow.debounce
-import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.launch
 import me.kavishdevar.librepods.R
-import me.kavishdevar.librepods.bluetooth.aacp.types.AppleEvent
 import me.kavishdevar.librepods.presentation.components.MaterialButtonStyle
 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.StyledSlider
 import me.kavishdevar.librepods.presentation.components.StyledToggle
+import me.kavishdevar.librepods.presentation.icons.LocalIcons
+import me.kavishdevar.librepods.presentation.icons.MaterialIcons
 import me.kavishdevar.librepods.presentation.theme.DesignSystem
 import me.kavishdevar.librepods.presentation.theme.LocalDesignSystem
 import me.kavishdevar.librepods.presentation.viewmodel.AppleViewModel
@@ -98,7 +104,11 @@ import kotlin.time.Duration.Companion.seconds
 @ExperimentalHazeMaterialsApi
 @OptIn(ExperimentalMaterial3Api::class, ExperimentalAnimationApi::class)
 @Composable
-fun HeadTrackingScreen(viewModel: AppleViewModel, navigateToPurchase: () -> Unit) {
+fun HeadTrackingScreen(
+    viewModel: AppleViewModel,
+    navigateBack: (() -> Unit)?,
+    navigateToPurchase: () -> Unit
+) {
     val uiState by viewModel.uiState.collectAsState()
 
     val settings = uiState.settings
@@ -112,10 +122,6 @@ fun HeadTrackingScreen(viewModel: AppleViewModel, navigateToPurchase: () -> Unit
 
     val backdrop = rememberLayerBackdrop()
 
-    val m3eEnabled = LocalDesignSystem.current == DesignSystem.Material
-    val topPadding = if (m3eEnabled) 0.dp else WindowInsets.statusBars.asPaddingValues().calculateTopPadding() + 84.dp
-    val bottomPadding = WindowInsets.navigationBars.asPaddingValues().calculateBottomPadding() + 12.dp
-
     var gestureText by remember { mutableStateOf("") }
     val coroutineScope = rememberCoroutineScope()
 
@@ -124,10 +130,46 @@ fun HeadTrackingScreen(viewModel: AppleViewModel, navigateToPurchase: () -> Unit
 
     val scrollState = rememberScrollState()
 
+    StyledScaffold(
+        title = stringResource(R.string.head_gestures),
+        navigateBack = navigateBack,
+        actionButtons = listOf(
+            { scaffoldBackdrop ->
+                if (LocalDesignSystem.current == DesignSystem.Material) {
+                    FilledTonalIconToggleButton(
+                        checked = uiState.state.headTrackingActive,
+                        onCheckedChange = { if (it) viewModel.startHeadTracking() else viewModel.stopHeadTracking() },
+                        modifier = Modifier
+                            .minimumInteractiveComponentSize()
+                            .size(IconButtonDefaults.mediumContainerSize(IconButtonDefaults.IconButtonWidthOption.Uniform)),
+                        shape = IconButtonDefaults.mediumRoundShape
+                    ) {
+                        Icon(
+                            imageVector = if (uiState.state.headTrackingActive) MaterialIcons.Pause else Icons.Default.PlayArrow,
+                            contentDescription = "Play/Pause",
+                            modifier = Modifier.size(IconButtonDefaults.mediumIconSize),
+                        )
+                    }
+                } else {
+                    StyledIconButton(
+                        onClick = if (!uiState.state.headTrackingActive) viewModel::startHeadTracking else viewModel::stopHeadTracking,
+                        backdrop = scaffoldBackdrop
+                    ) {
+                        Icon(
+                            imageVector = if (uiState.state.headTrackingActive) LocalIcons.current.Pause else LocalIcons.current.Play,
+                            contentDescription = "Play/Pause",
+                            modifier = Modifier.size(16.dp),
+                            tint = MaterialTheme.colorScheme.onBackground
+                        )
+                    }
+                }
+            }
+        )
+    ) { topPadding, bottomPadding ->
         Column(
             modifier = Modifier
                 .fillMaxSize()
-            .background(MaterialTheme.colorScheme.surfaceContainer)
+                .padding(horizontal = 16.dp)
                 .verticalScroll(scrollState),
             horizontalAlignment = Alignment.CenterHorizontally
         ) {
@@ -138,7 +180,6 @@ fun HeadTrackingScreen(viewModel: AppleViewModel, navigateToPurchase: () -> Unit
                     .fillMaxWidth()
                     .layerBackdrop(backdrop)
                     .padding(top = 8.dp)
-                .padding(horizontal = 16.dp)
             ) {
 
                 if (!uiState.isPremium) {
@@ -167,14 +208,13 @@ fun HeadTrackingScreen(viewModel: AppleViewModel, navigateToPurchase: () -> Unit
                     header = true
                 )
 
-            Spacer(modifier = Modifier.height(16.dp))
-
                 Spacer(modifier = Modifier.height(16.dp))
                 Text(
                     "Velocity",
                     style = MaterialTheme.typography.labelSmallEmphasized,
-                modifier = Modifier.padding(start = 16.dp, bottom = 8.dp, top = 8.dp)
+                    modifier = Modifier.padding(vertical = 8.dp)
                 )
+
                 Plot()
 
                 Spacer(modifier = Modifier.height(16.dp))
@@ -194,18 +234,12 @@ fun HeadTrackingScreen(viewModel: AppleViewModel, navigateToPurchase: () -> Unit
                 onClick = {
                     gestureText = gestureTextValue
                     coroutineScope.launch {
-                    viewModel.testHeadGestures()
+                        viewModel.detectHeadGestures { gestureText = if (it) "\"Yes\" gesture detected." else "\"No\" gesture detected." }
-                    val accepted = viewModel.events
-                        .filterIsInstance<AppleEvent.HeadGesturesResult>()
-                        .first()
-                        .yes
-                    gestureText = if (accepted) "\"Yes\" gesture detected." else "\"No\" gesture detected."
                     }
                 },
                 backdrop = backdrop,
                 modifier = Modifier
-                .fillMaxWidth()
+                    .fillMaxWidth(),
-                .padding(horizontal = 16.dp),
                 maxScale = 0.05f,
                 materialButtonStyle = MaterialButtonStyle.Outlined
             ) {
@@ -254,8 +288,43 @@ fun HeadTrackingScreen(viewModel: AppleViewModel, navigateToPurchase: () -> Unit
                     }
                 }
             }
+
+            if (uiState.appSettings.debugMode) {
+                Spacer(modifier = Modifier.height(16.dp))
+                StyledToggle(
+                    label = "[debug] alternate horizontal byte offset",
+                    checked = settings.headGesturesHorizontalOffset == 26,
+                    onCheckedChange = { viewModel.setHeadGesturesHorizontalOffset(if (it) 26 else 28) }
+                )
+                Spacer(modifier = Modifier.height(16.dp))
+
+                val sliderValue = remember {
+                    mutableFloatStateOf(settings.headTrackingInterval.inWholeMilliseconds.toFloat())
+                }
+
+                LaunchedEffect(sliderValue) {
+                    snapshotFlow { sliderValue.floatValue }
+                        .debounce(100.milliseconds)
+                        .collect { value ->
+                            viewModel.setHeadTrackingInterval(value.toInt().milliseconds)
+                        }
+                }
+
+                StyledSlider(
+                    label = "[debug] head tracking interval",
+                    value = sliderValue.floatValue,
+                    onValueChange = { sliderValue.floatValue = it },
+                    valueRange = 10f..200f,
+                    snapPoints = listOf(40f),
+                    independent = true,
+                    description = "how often airpods report sensor information",
+                    enabled = uiState.isPremium
+                )
+            }
+
             Spacer(modifier = Modifier.height(bottomPadding))
         }
+    }
 }
 
 @Composable

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

@@ -23,13 +23,9 @@ import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.WindowInsets
-import androidx.compose.foundation.layout.asPaddingValues
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.navigationBars
 import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.statusBars
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.verticalScroll
 import androidx.compose.material3.MaterialTheme
@@ -52,17 +48,19 @@ import me.kavishdevar.librepods.bluetooth.att.ATTHandle
 import me.kavishdevar.librepods.bluetooth.att.types.HearingAidSettings
 import me.kavishdevar.librepods.bluetooth.att.types.parseHearingAidSettingsResponse
 import me.kavishdevar.librepods.bluetooth.att.types.sendHearingAidSettings
+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.icons.LocalIcons
-import me.kavishdevar.librepods.presentation.theme.DesignSystem
-import me.kavishdevar.librepods.presentation.theme.LocalDesignSystem
 import me.kavishdevar.librepods.presentation.viewmodel.AppleViewModel
 
 private const val TAG = "HearingAidAdjustments"
 
 @Composable
-fun HearingAidAdjustmentsScreen(viewModel: AppleViewModel) {
+fun HearingAidAdjustmentsScreen(
+    viewModel: AppleViewModel,
+    navigateBack: (() -> Unit)?
+) {
     val verticalScrollState = rememberScrollState()
     val uiState by viewModel.uiState.collectAsState()
 
@@ -149,10 +147,10 @@ fun HearingAidAdjustmentsScreen(viewModel: AppleViewModel) {
         sendHearingAidSettings(state.hearingAidData, hearingAidSettings.value, debounceJob, viewModel::writeATTCharacteristic)
     }
 
-    val m3eEnabled = LocalDesignSystem.current == DesignSystem.Material
+    StyledScaffold(
-    val topPadding = if (m3eEnabled) 0.dp else WindowInsets.statusBars.asPaddingValues().calculateTopPadding() + 84.dp
+        title = stringResource(R.string.adjustments),
-    val bottomPadding = WindowInsets.navigationBars.asPaddingValues().calculateBottomPadding() + 12.dp
+        navigateBack = navigateBack
-
+    ) { topPadding, bottomPadding ->
         Column(
             modifier = Modifier
                 .fillMaxSize()
@@ -228,4 +226,5 @@ fun HearingAidAdjustmentsScreen(viewModel: AppleViewModel) {
 
             Spacer(modifier = Modifier.height(bottomPadding))
         }
+    }
 }

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

@@ -24,16 +24,11 @@ import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.WindowInsets
-import androidx.compose.foundation.layout.asPaddingValues
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.navigationBars
 import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.statusBars
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.verticalScroll
-import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
@@ -48,7 +43,6 @@ import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.unit.dp
 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.launch
@@ -59,17 +53,20 @@ import me.kavishdevar.librepods.bluetooth.att.types.sendTransparencySettings
 import me.kavishdevar.librepods.presentation.components.ConfirmationDialog
 import me.kavishdevar.librepods.presentation.components.StyledList
 import me.kavishdevar.librepods.presentation.components.StyledListItem
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
 import me.kavishdevar.librepods.presentation.components.StyledToggle
-import me.kavishdevar.librepods.presentation.theme.DesignSystem
-import me.kavishdevar.librepods.presentation.theme.LocalDesignSystem
 import me.kavishdevar.librepods.presentation.viewmodel.AppleViewModel
-import kotlin.io.encoding.ExperimentalEncodingApi
 
-private const val TAG = "AccessibilitySettings"
+private const val TAG = "HearingAidScreen"
 
 @SuppressLint("DefaultLocale")
 @Composable
-fun HearingAidScreen(viewModel: AppleViewModel, onNavigateHearingAidAdjustments: () -> Unit, onNavigateHearingTest: () -> Unit) {
+fun HearingAidScreen(
+    viewModel: AppleViewModel,
+    navigateBack: (() -> Unit)?,
+    navigateToHearingAidAdjustments: () -> Unit,
+    navigateToHearingTest: () -> Unit
+) {
     val verticalScrollState  = rememberScrollState()
     val backdrop = rememberLayerBackdrop()
 
@@ -86,10 +83,10 @@ fun HearingAidScreen(viewModel: AppleViewModel, onNavigateHearingAidAdjustments:
         mutableStateOf((aidStatus?.getOrNull(1) == 0x01.toByte()) && (assistStatus?.getOrNull(0) == 0x01.toByte()))
     }
 
-    val m3eEnabled = LocalDesignSystem.current == DesignSystem.Material
+    StyledScaffold(
-    val topPadding = if (m3eEnabled) 0.dp else WindowInsets.statusBars.asPaddingValues().calculateTopPadding() + 84.dp
+        title = stringResource(R.string.hearing_aid),
-    val bottomPadding = WindowInsets.navigationBars.asPaddingValues().calculateBottomPadding() + 12.dp
+        navigateBack = navigateBack
-
+    ) { topPadding, bottomPadding ->
         Column(
             modifier = Modifier
                 .layerBackdrop(backdrop)
@@ -132,7 +129,7 @@ fun HearingAidScreen(viewModel: AppleViewModel, onNavigateHearingAidAdjustments:
                 )
                 StyledListItem(
                     contentText = stringResource(R.string.adjustments),
-                onClick = onNavigateHearingAidAdjustments,
+                    onClick = navigateToHearingAidAdjustments,
                 )
             }
 
@@ -146,7 +143,7 @@ fun HearingAidScreen(viewModel: AppleViewModel, onNavigateHearingAidAdjustments:
 
             StyledListItem(
                 contentText = stringResource(R.string.update_hearing_test),
-            onClick = onNavigateHearingTest,
+                onClick = navigateToHearingTest,
             )
 
             // not implemented yet
@@ -188,6 +185,7 @@ fun HearingAidScreen(viewModel: AppleViewModel, onNavigateHearingAidAdjustments:
             // }
             Spacer(modifier = Modifier.height(bottomPadding))
         }
+    }
 
     ConfirmationDialog(
         showDialog = showDialog,
@@ -213,13 +211,13 @@ fun HearingAidScreen(viewModel: AppleViewModel, onNavigateHearingAidAdjustments:
                     }
                     val parsed = parseTransparencySettingsResponse(state.hearingAidData)
                     if (parsed == null) {
-                        Log.w(TAG, "transparency parse failed")
+                        Log.w(TAG, "hearingaid parse failed")
                         return@launch
                     }
                     val disabledSettings = parsed.copy(enabled = false)
                     sendTransparencySettings(viewModel::writeATTCharacteristic, disabledSettings)
                 } catch (e: Exception) {
-                    Log.e(TAG, "Error disabling transparency: ${e.message}")
+                    Log.e(TAG, "Error disabling hearingaid: ${e.message}")
                 }
             }
         },

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

@@ -21,14 +21,10 @@ package me.kavishdevar.librepods.presentation.screens.apple
 import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.WindowInsets
-import androidx.compose.foundation.layout.asPaddingValues
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.navigationBars
 import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.statusBars
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
@@ -40,25 +36,28 @@ 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.bluetooth.att.ATTHandle
 import me.kavishdevar.librepods.bluetooth.aacp.types.ControlCommandIdentifier
+import me.kavishdevar.librepods.bluetooth.att.ATTHandle
 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.theme.DesignSystem
-import me.kavishdevar.librepods.presentation.theme.LocalDesignSystem
 import me.kavishdevar.librepods.presentation.viewmodel.AppleViewModel
 
 @Composable
-fun HearingProtectionScreen(viewModel: AppleViewModel, navigateToPurchase: () -> Unit) {
+fun HearingProtectionScreen(
+    viewModel: AppleViewModel,
+    navigateBack: (() -> Unit)?,
+    navigateToPurchase: () -> Unit
+) {
     val backdrop = rememberLayerBackdrop()
     val uiState by viewModel.uiState.collectAsState()
 
     val state = uiState.state
 
-    val m3eEnabled = LocalDesignSystem.current == DesignSystem.Material
+    StyledScaffold(
-    val topPadding = if (m3eEnabled) 0.dp else WindowInsets.statusBars.asPaddingValues().calculateTopPadding() + 84.dp
+        title = stringResource(R.string.hearing_protection),
-    val bottomPadding = WindowInsets.navigationBars.asPaddingValues().calculateBottomPadding() + 12.dp
+        navigateBack = navigateBack
-
+    ) { topPadding, bottomPadding ->
         Column(
             modifier = Modifier
                 .fillMaxSize()
@@ -117,4 +116,5 @@ fun HearingProtectionScreen(viewModel: AppleViewModel, navigateToPurchase: () ->
             )
             Spacer(modifier = Modifier.height(bottomPadding))
         }
+    }
 }

android/app/src/main/kotlin/me/kavishdevar/librepods/presentation/screens/apple/HeartRateScreen.kt

@@ -0,0 +1,253 @@
+package me.kavishdevar.librepods.presentation.screens.apple
+
+import android.text.format.DateFormat
+import androidx.compose.animation.AnimatedVisibility
+import androidx.compose.foundation.background
+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.fillMaxHeight
+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.size
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.PlayArrow
+import androidx.compose.material3.FilledTonalIconToggleButton
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButtonDefaults
+import androidx.compose.material3.MaterialShapes
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.material3.minimumInteractiveComponentSize
+import androidx.compose.material3.toShape
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableFloatStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalLocale
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.unit.dp
+import androidx.health.connect.client.permission.HealthPermission
+import androidx.health.connect.client.records.HeartRateRecord
+import com.google.accompanist.permissions.ExperimentalPermissionsApi
+import com.google.accompanist.permissions.isGranted
+import com.google.accompanist.permissions.rememberPermissionState
+import me.kavishdevar.librepods.R
+import me.kavishdevar.librepods.presentation.components.StyledIconButton
+import me.kavishdevar.librepods.presentation.components.StyledListItem
+import me.kavishdevar.librepods.presentation.components.StyledListItemOrientation
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
+import me.kavishdevar.librepods.presentation.icons.LocalIcons
+import me.kavishdevar.librepods.presentation.icons.MaterialIcons
+import me.kavishdevar.librepods.presentation.theme.DesignSystem
+import me.kavishdevar.librepods.presentation.theme.LocalDesignSystem
+import me.kavishdevar.librepods.presentation.viewmodel.AppleUiState
+import me.kavishdevar.librepods.presentation.viewmodel.AppleViewModel
+import java.time.Instant
+import java.time.ZoneId
+import java.time.format.DateTimeFormatter
+
+@Composable
+fun HeartRateRoute(
+    viewModel: AppleViewModel,
+    navigateBack: (() -> Unit)?
+) {
+    val uiState by viewModel.uiState.collectAsState()
+
+    HeartRateScreen(
+        uiState = uiState,
+        navigateBack = navigateBack,
+        startHr = viewModel::startHr,
+        stopHr = viewModel::stopHr,
+        setHrRange = viewModel::setHrRange
+    )
+}
+
+@OptIn(ExperimentalPermissionsApi::class)
+@Composable
+fun HeartRateScreen(
+    uiState: AppleUiState,
+    navigateBack: (() -> Unit)?,
+    startHr: () -> Unit,
+    stopHr: () -> Unit,
+    setHrRange: (ClosedRange<Long>) -> Unit
+) {
+    val state = uiState.state
+
+    val scrollState = rememberScrollState()
+
+    StyledScaffold(
+        title = stringResource(R.string.heart_rate),
+        navigateBack = navigateBack,
+        actionButtons = listOf(
+            { scaffoldBackdrop ->
+                if (LocalDesignSystem.current == DesignSystem.Material) {
+                    FilledTonalIconToggleButton(
+                        checked = state.hrmActive,
+                        onCheckedChange = { if (it) startHr() else stopHr() },
+                        modifier = Modifier
+                            .minimumInteractiveComponentSize()
+                            .size(IconButtonDefaults.mediumContainerSize(IconButtonDefaults.IconButtonWidthOption.Uniform)),
+                        shape = IconButtonDefaults.mediumRoundShape
+                    ) {
+                        Icon(
+                            imageVector = if (state.hrmActive) MaterialIcons.Pause else Icons.Default.PlayArrow,
+                            contentDescription = "Start/Stop",
+                            modifier = Modifier.size(IconButtonDefaults.mediumIconSize),
+                        )
+                    }
+                } else {
+                    StyledIconButton(
+                        onClick = { if (!state.hrmActive) startHr() else stopHr() },
+                        backdrop = scaffoldBackdrop
+                    ) {
+                        Icon(
+                            imageVector = if (state.hrmActive) LocalIcons.current.Pause else LocalIcons.current.Play,
+                            contentDescription = "Start/Stop",
+                            modifier = Modifier.size(16.dp),
+                            tint = MaterialTheme.colorScheme.onBackground
+                        )
+                    }
+                }
+            }
+        )
+    ) { topPadding, bottomPadding ->
+        Column(
+            modifier = Modifier
+                .padding(horizontal = 16.dp)
+                .verticalScroll(scrollState),
+            verticalArrangement = Arrangement.spacedBy(16.dp)
+        ) {
+            Spacer(modifier = Modifier.height(topPadding))
+
+            val sliderValue = remember {
+                mutableFloatStateOf(state.heartRateInterval.inWholeMilliseconds.toFloat())
+            }
+
+            val healthPermissions = rememberPermissionState(
+                HealthPermission.getWritePermission(HeartRateRecord::class)
+            )
+
+            AnimatedVisibility(visible = !healthPermissions.status.isGranted) {
+                if (healthPermissions.status.isGranted) return@AnimatedVisibility
+                StyledListItem(
+                    contentText = stringResource(R.string.permission_healthconnect),
+                    onClick = { healthPermissions.launchPermissionRequest() },
+                    supportingText = stringResource(R.string.permission_description_healthconnect),
+                    leadingContent = {
+                        Box(
+                            modifier = Modifier
+                                .size(48.dp)
+                                .background(
+                                    MaterialTheme.colorScheme.surfaceContainerLow,
+                                    MaterialShapes.SoftBurst.normalized()
+                                        .toShape()
+                                ),
+                            contentAlignment = Alignment.Center
+                        ) {
+                            Icon(
+                                imageVector = LocalIcons.current.VitalSigns,
+                                contentDescription = "vital signs",
+                                modifier = Modifier.size(24.dp),
+                                tint = MaterialTheme.colorScheme.onSurface
+                            )
+                        }
+                    },
+                    orientation = StyledListItemOrientation.Vertical
+                )
+            }
+
+            // saw this while using one of the forks. 1 minute doesn't seem to work for me
+//        StyledList(
+//            title = stringResource(R.string.interval),
+//            description = stringResource(R.string.heart_rate_interval_description),
+//        ) {
+//            StyledListItem(
+//                onClick = { setHrInterval(1.seconds) },
+//                contentText = stringResource(R.string.one_second),
+//                selected = state.heartRateInterval == 1.seconds
+//            )
+//            StyledListItem(
+//                onClick = { setHrInterval(1.minutes) },
+//                contentText = stringResource(R.string.one_minute),
+//                selected = state.heartRateInterval == 1.minutes
+//            )
+//        }
+
+            AnimatedVisibility(state.currentHeartRate != null) {
+                if (state.currentHeartRate == null) return@AnimatedVisibility
+                StyledListItem(
+                    onClick = null,
+                    content = {
+                        Text(
+                            text = "${state.currentHeartRate.bpm} bpm",
+                            style = MaterialTheme.typography.bodyLargeEmphasized,
+                            modifier = Modifier.fillMaxHeight()
+                        )
+                    },
+                    supportingContent = {
+                        val locale = LocalLocale.current.platformLocale
+                        val timePattern = DateFormat.getBestDateTimePattern(
+                            locale,
+                            "jms"
+                        )
+                        val formatter = DateTimeFormatter.ofPattern(timePattern)
+
+                        val timeString = formatter.format(
+                            Instant.ofEpochMilli(state.currentHeartRate.timestamp.toEpochMilliseconds())
+                                .atZone(ZoneId.systemDefault())
+                        )
+
+                        Text(
+                            text = timeString,
+                            style = MaterialTheme.typography.bodySmall
+                        )
+                    },
+                    leadingContent = {
+                        Box(
+                            modifier = Modifier
+                                .size(48.dp)
+                                .background(
+                                    MaterialTheme.colorScheme.primaryContainer,
+                                    MaterialShapes.SoftBurst.normalized()
+                                        .toShape()
+                                ),
+                            contentAlignment = Alignment.Center
+                        ) {
+                            Icon(
+                                imageVector = LocalIcons.current.VitalSigns,
+                                contentDescription = "vital signs",
+                                modifier = Modifier.size(24.dp),
+                                tint = MaterialTheme.colorScheme.onPrimaryContainer
+                            )
+                        }
+                    },
+                    orientation = StyledListItemOrientation.Vertical
+                )
+            }
+
+            Column(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .heightIn(min = 350.dp)
+                    .background(
+                        MaterialTheme.colorScheme.surfaceContainerHigh,
+                        RoundedCornerShape(28.dp)
+                    )
+            ) {
+                // TODO: graph or something
+            }
+
+            Spacer(modifier = Modifier.height(bottomPadding))
+        }
+    }
+}

android/app/src/main/kotlin/me/kavishdevar/librepods/presentation/screens/apple/MicrophoneSettingsScreen.kt

@@ -1,16 +1,11 @@
 package me.kavishdevar.librepods.presentation.screens.apple
 
 import androidx.compose.foundation.background
-import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.WindowInsets
-import androidx.compose.foundation.layout.asPaddingValues
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.navigationBars
 import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.statusBars
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.verticalScroll
 import androidx.compose.material3.MaterialTheme
@@ -19,55 +14,46 @@ import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource
-import androidx.compose.ui.unit.Dp
 import androidx.compose.ui.unit.dp
 import me.kavishdevar.librepods.R
 import me.kavishdevar.librepods.bluetooth.aacp.types.ControlCommandIdentifier
 import me.kavishdevar.librepods.presentation.components.StyledList
 import me.kavishdevar.librepods.presentation.components.StyledListItem
-import me.kavishdevar.librepods.presentation.theme.DesignSystem
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
-import me.kavishdevar.librepods.presentation.theme.LocalDesignSystem
 import me.kavishdevar.librepods.presentation.viewmodel.AppleViewModel
 
 @Composable
 fun MicrophoneSettingsRoute(
-    viewModel: AppleViewModel
+    viewModel: AppleViewModel,
+    navigateBack: (() -> Unit)?
 ) {
     val uiState by viewModel.uiState.collectAsState()
 
     val state = uiState.state
 
-    val m3eEnabled = LocalDesignSystem.current == DesignSystem.Material
-    val topPadding = if (m3eEnabled) 0.dp else WindowInsets.statusBars.asPaddingValues().calculateTopPadding() + 84.dp
-    val bottomPadding = WindowInsets.navigationBars.asPaddingValues().calculateBottomPadding() + 12.dp
-
     val id = ControlCommandIdentifier.MIC_MODE
 
-    Box (
-        modifier = Modifier
-            .fillMaxSize()
-            .background(MaterialTheme.colorScheme.surfaceContainer)
-    ) {
     MicrophoneSettingsScreen(
+        navigateBack = navigateBack,
         selectedMode = state.controlStates[id]?.getOrNull(0)?.toInt() ?: 0,
-            topPadding = topPadding,
-            bottomPadding = bottomPadding,
         onMicrophoneSettingsChanged = {
             viewModel.setControlCommand(id, it)
         }
     )
-    }
 }
 
 @Composable
 fun MicrophoneSettingsScreen(
+    navigateBack: (() -> Unit)?,
     selectedMode: Int,
-    topPadding: Dp = 16.dp,
-    bottomPadding: Dp = 16.dp,
     onMicrophoneSettingsChanged: (Int) -> Unit
 ) {
     val scrollState = rememberScrollState()
 
+    StyledScaffold(
+        title = stringResource(R.string.microphone_mode),
+        navigateBack = navigateBack
+    ) { topPadding, bottomPadding ->
         Column(
             modifier = Modifier
                 .fillMaxSize()
@@ -100,4 +86,5 @@ fun MicrophoneSettingsScreen(
 
             Spacer(modifier = Modifier.height(bottomPadding))
         }
+    }
 }

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

@@ -24,18 +24,13 @@ import android.util.Log
 import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.WindowInsets
-import androidx.compose.foundation.layout.asPaddingValues
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.navigationBars
 import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.statusBars
 import androidx.compose.foundation.layout.wrapContentWidth
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.verticalScroll
-import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
@@ -47,24 +42,25 @@ import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
 import com.kyant.backdrop.backdrops.rememberLayerBackdrop
-import dev.chrisbanes.haze.materials.ExperimentalHazeMaterialsApi
 import me.kavishdevar.librepods.R
 import me.kavishdevar.librepods.bluetooth.aacp.types.ControlCommandIdentifier
 import me.kavishdevar.librepods.data.StemAction
-import me.kavishdevar.librepods.presentation.components.StyledListItemOrientation
 import me.kavishdevar.librepods.presentation.components.StyledButton
 import me.kavishdevar.librepods.presentation.components.StyledList
 import me.kavishdevar.librepods.presentation.components.StyledListItem
-import me.kavishdevar.librepods.presentation.theme.DesignSystem
+import me.kavishdevar.librepods.presentation.components.StyledListItemOrientation
-import me.kavishdevar.librepods.presentation.theme.LocalDesignSystem
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
 import me.kavishdevar.librepods.presentation.viewmodel.AppleViewModel
 import kotlin.experimental.and
 import kotlin.io.encoding.ExperimentalEncodingApi
 
-@ExperimentalHazeMaterialsApi
-@OptIn(ExperimentalMaterial3Api::class)
 @Composable
-fun LongPress(viewModel: AppleViewModel, name: String, navigateToPurchase: () -> Unit) {
+fun LongPress(
+    viewModel: AppleViewModel,
+    name: String,
+    navigateBack: (() -> Unit)?,
+    navigateToPurchase: () -> Unit
+) {
     val uiState by viewModel.uiState.collectAsState()
 
     val state = uiState.state
@@ -78,14 +74,14 @@ fun LongPress(viewModel: AppleViewModel, name: String, navigateToPurchase: () ->
     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") settings.leftLongPressAction else settings.rightLongPressAction
+    val longPressAction = if (name == stringResource(R.string.left)) settings.leftLongPressAction else settings.rightLongPressAction
-
-    val m3eEnabled = LocalDesignSystem.current == DesignSystem.Material
-    val topPadding = if (m3eEnabled) 0.dp else WindowInsets.statusBars.asPaddingValues().calculateTopPadding() + 84.dp
-    val bottomPadding = WindowInsets.navigationBars.asPaddingValues().calculateBottomPadding() + 12.dp
 
     val scrollState = rememberScrollState()
 
+    StyledScaffold(
+        title = name,
+        navigateBack = navigateBack
+    ) { topPadding, bottomPadding ->
         Column (
             modifier = Modifier
                 .fillMaxSize()
@@ -233,4 +229,5 @@ fun LongPress(viewModel: AppleViewModel, name: String, navigateToPurchase: () ->
             }
             Spacer(modifier = Modifier.height(bottomPadding))
         }
+    }
 }

android/app/src/main/kotlin/me/kavishdevar/librepods/presentation/screens/apple/RecordingScreen.kt

@@ -8,14 +8,10 @@ import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.WindowInsets
-import androidx.compose.foundation.layout.asPaddingValues
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.navigationBars
 import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.statusBars
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.foundation.verticalScroll
@@ -45,12 +41,11 @@ import androidx.core.content.FileProvider
 import me.kavishdevar.librepods.BuildConfig
 import me.kavishdevar.librepods.R
 import me.kavishdevar.librepods.data.recording.Recording
-import me.kavishdevar.librepods.presentation.components.StyledListItemOrientation
 import me.kavishdevar.librepods.presentation.components.StyledButton
 import me.kavishdevar.librepods.presentation.components.StyledList
 import me.kavishdevar.librepods.presentation.components.StyledListItem
-import me.kavishdevar.librepods.presentation.theme.DesignSystem
+import me.kavishdevar.librepods.presentation.components.StyledListItemOrientation
-import me.kavishdevar.librepods.presentation.theme.LocalDesignSystem
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
 import me.kavishdevar.librepods.presentation.viewmodel.AppleUiState
 import me.kavishdevar.librepods.presentation.viewmodel.AppleViewModel
 import java.time.Instant
@@ -60,27 +55,17 @@ import java.time.format.DateTimeFormatter
 @Composable
 fun RecordingScreenRoute(
     viewModel: AppleViewModel,
+    navigateBack: (() -> Unit)?
 ) {
     val uiState by viewModel.uiState.collectAsState()
 
-    val m3eEnabled = LocalDesignSystem.current == DesignSystem.Material
-    val topPadding = if (m3eEnabled) 0.dp else WindowInsets.statusBars.asPaddingValues().calculateTopPadding() + 84.dp
-    val bottomPadding = WindowInsets.navigationBars.asPaddingValues().calculateBottomPadding() + 12.dp
-
-    Box (
-        modifier = Modifier
-            .fillMaxSize()
-            .background(MaterialTheme.colorScheme.surfaceContainer)
-    ) {
     RecordingScreen(
         uiState = uiState,
+        navigateBack = navigateBack,
         recordings = viewModel.recordings(),
         startRecording = viewModel::startRecording,
         stopRecording = viewModel::stopRecording,
-            topPadding = topPadding,
-            bottomPadding = bottomPadding
     )
-    }
 
     DisposableEffect(Unit) {
         onDispose {
@@ -92,11 +77,10 @@ fun RecordingScreenRoute(
 @Composable
 fun RecordingScreen(
     uiState: AppleUiState,
+    navigateBack: (() -> Unit)?,
     recordings: List<Recording>,
     startRecording: () -> Unit,
     stopRecording: () -> Unit,
-    topPadding: Dp = 16.dp,
-    bottomPadding: Dp = 16.dp
 ) {
     val state = uiState.state
 
@@ -139,6 +123,10 @@ fun RecordingScreen(
         }
     }
 
+    StyledScaffold(
+        title = stringResource(R.string.recorder),
+        navigateBack = navigateBack
+    ) { topPadding, bottomPadding ->
         Column(
             modifier = Modifier
                 .fillMaxWidth()
@@ -285,4 +273,5 @@ fun RecordingScreen(
             }
             Spacer(modifier = Modifier.padding(bottom = bottomPadding))
         }
+    }
 }

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

@@ -20,20 +20,13 @@
 
 package me.kavishdevar.librepods.presentation.screens.apple
 
-import android.content.Context
-import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.WindowInsets
-import androidx.compose.foundation.layout.asPaddingValues
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.navigationBars
 import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.statusBars
 import androidx.compose.foundation.text.input.rememberTextFieldState
 import androidx.compose.material3.ExperimentalMaterial3Api
-import androidx.compose.material3.MaterialTheme
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.collectAsState
@@ -41,21 +34,22 @@ import androidx.compose.runtime.getValue
 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.theme.DesignSystem
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
-import me.kavishdevar.librepods.presentation.theme.LocalDesignSystem
 import me.kavishdevar.librepods.presentation.viewmodel.AppleViewModel
 import kotlin.io.encoding.ExperimentalEncodingApi
 
 @OptIn(ExperimentalMaterial3Api::class, ExperimentalHazeMaterialsApi::class)
 @Composable
-fun RenameScreen(viewModel: AppleViewModel) {
+fun RenameScreen(
-    val sharedPreferences = LocalContext.current.getSharedPreferences("settings", Context.MODE_PRIVATE)
+    viewModel: AppleViewModel,
+    navigateBack: (() -> Unit)?
+) {
     val focusRequester = remember { FocusRequester() }
     val keyboardController = LocalSoftwareKeyboardController.current
 
@@ -64,17 +58,16 @@ fun RenameScreen(viewModel: AppleViewModel) {
         keyboardController?.show()
     }
 
-    val m3eEnabled = LocalDesignSystem.current == DesignSystem.Material
-    val topPadding = if (m3eEnabled) 0.dp else WindowInsets.statusBars.asPaddingValues().calculateTopPadding() + 84.dp
-    val bottomPadding = WindowInsets.navigationBars.asPaddingValues().calculateBottomPadding() + 12.dp
-
     val uiState by viewModel.uiState.collectAsState()
     val metadata = uiState.metadata
 
+    StyledScaffold(
+        title = stringResource(R.string.name),
+        navigateBack = navigateBack
+    ) { topPadding, bottomPadding ->
         Column(
             modifier = Modifier
                 .fillMaxSize()
-            .background(MaterialTheme.colorScheme.surfaceContainer)
                 .padding(horizontal = 16.dp)
         ) {
             Spacer(modifier = Modifier.height(topPadding))
@@ -93,4 +86,5 @@ fun RenameScreen(viewModel: AppleViewModel) {
             Spacer(modifier = Modifier.height(bottomPadding))
 
         }
+    }
 }

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

@@ -26,20 +26,15 @@ 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.WindowInsets
-import androidx.compose.foundation.layout.asPaddingValues
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.navigationBars
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
-import androidx.compose.foundation.layout.statusBars
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.foundation.verticalScroll
-import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Slider
 import androidx.compose.material3.SliderDefaults
@@ -61,11 +56,11 @@ import androidx.compose.ui.graphics.luminance
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
-import dev.chrisbanes.haze.materials.ExperimentalHazeMaterialsApi
 import me.kavishdevar.librepods.R
 import me.kavishdevar.librepods.bluetooth.att.types.TransparencySettings
 import me.kavishdevar.librepods.bluetooth.att.types.parseTransparencySettingsResponse
 import me.kavishdevar.librepods.bluetooth.att.types.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.presentation.icons.LocalIcons
@@ -73,15 +68,15 @@ import me.kavishdevar.librepods.presentation.theme.DesignSystem
 import me.kavishdevar.librepods.presentation.theme.LocalDesignSystem
 import me.kavishdevar.librepods.presentation.theme.sectionHeader
 import me.kavishdevar.librepods.presentation.viewmodel.AppleViewModel
-import kotlin.io.encoding.ExperimentalEncodingApi
 
 private const val TAG = "TransparencySettings"
 
 @SuppressLint("DefaultLocale")
-@ExperimentalHazeMaterialsApi
-@OptIn(ExperimentalMaterial3Api::class, ExperimentalEncodingApi::class)
 @Composable
-fun TransparencySettingsScreen(viewModel: AppleViewModel) {
+fun TransparencySettingsScreen(
+    viewModel: AppleViewModel,
+    navigateBack: (() -> Unit)?,
+) {
     val isDarkTheme = MaterialTheme.colorScheme.surface.luminance() < 0.5f
     val textColor = if (isDarkTheme) Color.White else Color.Black
     val verticalScrollState = rememberScrollState()
@@ -94,10 +89,10 @@ fun TransparencySettingsScreen(viewModel: AppleViewModel) {
 
     val state = uiState.state
 
-    val m3eEnabled = LocalDesignSystem.current == DesignSystem.Material
+    StyledScaffold(
-    val topPadding = if (m3eEnabled) 0.dp else WindowInsets.statusBars.asPaddingValues().calculateTopPadding() + 84.dp
+        title = stringResource(R.string.customize_transparency_mode),
-    val bottomPadding = WindowInsets.navigationBars.asPaddingValues().calculateBottomPadding() + 12.dp
+        navigateBack = navigateBack
-
+    ) { topPadding, bottomPadding ->
         Column(
             modifier = Modifier
                 .fillMaxSize()
@@ -263,7 +258,7 @@ fun TransparencySettingsScreen(viewModel: AppleViewModel) {
                 Text(
                     text = stringResource(R.string.equalizer),
                     style = MaterialTheme.typography.labelSmallEmphasized,
-                color = if (m3eEnabled) MaterialTheme.colorScheme.primary else MaterialTheme.colorScheme.sectionHeader,
+                    color = if (LocalDesignSystem.current == DesignSystem.Material) MaterialTheme.colorScheme.primary else MaterialTheme.colorScheme.sectionHeader,
                     modifier = Modifier.padding(16.dp, bottom = 4.dp)
                 )
 
@@ -358,4 +353,5 @@ fun TransparencySettingsScreen(viewModel: AppleViewModel) {
 
             Spacer(modifier = Modifier.height(bottomPadding))
         }
+    }
 }

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

@@ -25,14 +25,9 @@ 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.WindowInsets
-import androidx.compose.foundation.layout.asPaddingValues
-import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.navigationBars
 import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.statusBars
 import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.layout.wrapContentHeight
 import androidx.compose.foundation.rememberScrollState
@@ -56,7 +51,6 @@ import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.input.KeyboardType
 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.dp
 import kotlinx.coroutines.Job
 import me.kavishdevar.librepods.R
@@ -64,47 +58,42 @@ import me.kavishdevar.librepods.bluetooth.att.ATTHandle
 import me.kavishdevar.librepods.bluetooth.att.types.HearingAidSettings
 import me.kavishdevar.librepods.bluetooth.att.types.parseHearingAidSettingsResponse
 import me.kavishdevar.librepods.bluetooth.att.types.sendHearingAidSettings
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
 import me.kavishdevar.librepods.presentation.theme.DesignSystem
 import me.kavishdevar.librepods.presentation.theme.LibrePodsTheme
-import me.kavishdevar.librepods.presentation.theme.LocalDesignSystem
 import me.kavishdevar.librepods.presentation.viewmodel.AppleUiState
 import me.kavishdevar.librepods.presentation.viewmodel.AppleViewModel
 
 private const val TAG = "UpdateHearingTestScreen"
 
 @Composable
-fun UpdateHearingTestRoute(viewModel: AppleViewModel) {
+fun UpdateHearingTestRoute(
+    viewModel: AppleViewModel,
+    navigateBack: (() -> Unit)?
+) {
     val uiState by viewModel.uiState.collectAsState()
 
-    val m3eEnabled = LocalDesignSystem.current == DesignSystem.Material
-    val topPadding = if (m3eEnabled) 0.dp else WindowInsets.statusBars.asPaddingValues().calculateTopPadding() + 84.dp
-    val bottomPadding = WindowInsets.navigationBars.asPaddingValues().calculateBottomPadding() + 12.dp
-
-    Box(
-        modifier = Modifier
-            .fillMaxSize()
-            .background(MaterialTheme.colorScheme.surfaceContainer)
-    ) {
     UpdateHearingTestScreen(
         uiState = uiState,
-            topPadding = topPadding,
+        navigateBack = navigateBack,
-            bottomPadding = bottomPadding,
         setATTCharacteristicValue = viewModel::writeATTCharacteristic
     )
-    }
 }
 
 @Composable
 fun UpdateHearingTestScreen(
     uiState: AppleUiState,
-    topPadding: Dp = 16.dp,
+    navigateBack: (() -> Unit)?,
-    bottomPadding: Dp = 16.dp,
     setATTCharacteristicValue: (ATTHandle, ByteArray) -> Unit
 ) {
     val state = uiState.state
 
     val verticalScrollState = rememberScrollState()
 
+    StyledScaffold(
+        title = stringResource(R.string.update_hearing_test),
+        navigateBack = navigateBack
+    ) { topPadding, bottomPadding ->
         Column(
             modifier = Modifier
                 .verticalScroll(verticalScrollState)
@@ -282,6 +271,7 @@ fun UpdateHearingTestScreen(
             }
             Spacer(modifier = Modifier.height(bottomPadding))
         }
+    }
 }
 
 @Preview(name = "Apple")
@@ -295,6 +285,7 @@ fun UpdateHearingTestScreenPreviewApple() {
         ) {
             UpdateHearingTestScreen(
                 uiState = AppleUiState(),
+                navigateBack = null,
                 setATTCharacteristicValue = { _, _ -> }
             )
         }
@@ -314,6 +305,7 @@ fun UpdateHearingTestScreenPreviewMaterial() {
         ) {
             UpdateHearingTestScreen(
                 uiState = AppleUiState(),
+                navigateBack = null,
                 setATTCharacteristicValue = { _, _ -> }
             )
         }

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

@@ -18,17 +18,11 @@
 
 package me.kavishdevar.librepods.presentation.screens.apple
 
-import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.WindowInsets
-import androidx.compose.foundation.layout.asPaddingValues
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.navigationBars
 import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.statusBars
-import androidx.compose.material3.MaterialTheme
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
@@ -38,24 +32,25 @@ import androidx.compose.ui.unit.dp
 import me.kavishdevar.librepods.R
 import me.kavishdevar.librepods.presentation.components.StyledList
 import me.kavishdevar.librepods.presentation.components.StyledListItem
-import me.kavishdevar.librepods.presentation.theme.DesignSystem
+import me.kavishdevar.librepods.presentation.components.StyledScaffold
-import me.kavishdevar.librepods.presentation.theme.LocalDesignSystem
 import me.kavishdevar.librepods.presentation.viewmodel.AppleViewModel
 
 @Composable
-fun VersionScreen(viewModel: AppleViewModel) {
+fun VersionScreen(
+    viewModel: AppleViewModel,
+    navigateBack: (() -> Unit)?
+) {
     val uiState by viewModel.uiState.collectAsState()
 
     val metadata = uiState.metadata
 
-    val m3eEnabled = LocalDesignSystem.current == DesignSystem.Material
+    StyledScaffold(
-    val topPadding = if (m3eEnabled) 0.dp else WindowInsets.statusBars.asPaddingValues().calculateTopPadding() + 84.dp
+        title = stringResource(R.string.version),
-    val bottomPadding = WindowInsets.navigationBars.asPaddingValues().calculateBottomPadding() + 12.dp
+        navigateBack = navigateBack
-
+    ) { topPadding, bottomPadding ->
         Column(
             modifier = Modifier
                 .fillMaxSize()
-            .background(MaterialTheme.colorScheme.surfaceContainer)
                 .padding(horizontal = 16.dp)
         ) {
             Spacer(modifier = Modifier.height(topPadding))
@@ -80,4 +75,5 @@ fun VersionScreen(viewModel: AppleViewModel) {
             }
             Spacer(modifier = Modifier.height(bottomPadding))
         }
+    }
 }

android/app/src/main/kotlin/me/kavishdevar/librepods/presentation/screens/onboarding/OnboardingScreen.kt

@@ -93,6 +93,7 @@ fun OnboardingScreen(
             verticalArrangement = Arrangement.spacedBy(8.dp),
             horizontalAlignment = Alignment.CenterHorizontally
         ) {
+            Spacer(modifier = Modifier.height(topPadding))
             HorizontalUncontainedCarousel(
                 modifier = Modifier
                     .fillMaxWidth()

android/app/src/main/kotlin/me/kavishdevar/librepods/presentation/screens/onboarding/PermissionsPage.kt

@@ -37,8 +37,11 @@ import androidx.compose.runtime.remember
 import androidx.compose.ui.Alignment
 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.core.net.toUri
+import androidx.health.connect.client.permission.HealthPermission
+import androidx.health.connect.client.records.HeartRateRecord
 import androidx.lifecycle.Lifecycle
 import androidx.lifecycle.LifecycleEventObserver
 import androidx.lifecycle.compose.LocalLifecycleOwner
@@ -46,9 +49,10 @@ import com.google.accompanist.permissions.ExperimentalPermissionsApi
 import com.google.accompanist.permissions.isGranted
 import com.google.accompanist.permissions.rememberMultiplePermissionsState
 import com.google.accompanist.permissions.rememberPermissionState
-import me.kavishdevar.librepods.presentation.components.StyledListItemOrientation
+import me.kavishdevar.librepods.R
 import me.kavishdevar.librepods.presentation.components.StyledList
 import me.kavishdevar.librepods.presentation.components.StyledListItem
+import me.kavishdevar.librepods.presentation.components.StyledListItemOrientation
 import me.kavishdevar.librepods.presentation.icons.MaterialIcons
 
 @OptIn(ExperimentalPermissionsApi::class)
@@ -63,11 +67,8 @@ fun PermissionsPage(
     val context = LocalContext.current
     val canDrawOverlays = remember { mutableStateOf(Settings.canDrawOverlays(context)) }
 
-    val phonePermissionState = rememberMultiplePermissionsState(
+    val healthPermissions = rememberPermissionState(
-        listOf(
+        HealthPermission.getWritePermission(HeartRateRecord::class)
-            "android.permission.READ_PHONE_STATE",
-            "android.permission.ANSWER_PHONE_CALLS"
-        )
     ) {
         if (grantingAll) {
             if (!canDrawOverlays.value) {
@@ -80,10 +81,23 @@ fun PermissionsPage(
         }
     }
 
+    val phonePermissionState = rememberMultiplePermissionsState(
+        listOf(
+            "android.permission.READ_PHONE_STATE",
+            "android.permission.ANSWER_PHONE_CALLS"
+        )
+    ) {
+        if (grantingAll) {
+            if (!healthPermissions.status.isGranted) healthPermissions.launchPermissionRequest()
+            else if (!canDrawOverlays.value) canDrawOverlays.value = Settings.canDrawOverlays(context)
+        }
+    }
+
 
     val notificationPermissionState = rememberPermissionState("android.permission.POST_NOTIFICATIONS") {
         if (grantingAll) {
             if (!phonePermissionState.allPermissionsGranted) phonePermissionState.launchMultiplePermissionRequest()
+            else if (!healthPermissions.status.isGranted) healthPermissions.launchPermissionRequest()
             else if (!canDrawOverlays.value) canDrawOverlays.value = Settings.canDrawOverlays(context)
         }
     }
@@ -100,6 +114,7 @@ fun PermissionsPage(
         if (grantingAll) {
             if (!notificationPermissionState.status.isGranted) notificationPermissionState.launchPermissionRequest()
             else if (!phonePermissionState.allPermissionsGranted) phonePermissionState.launchMultiplePermissionRequest()
+            else if (!healthPermissions.status.isGranted) healthPermissions.launchPermissionRequest()
             else if (!canDrawOverlays.value) canDrawOverlays.value = Settings.canDrawOverlays(context)
         }
     }
@@ -135,21 +150,21 @@ fun PermissionsPage(
                 .verticalScroll(scrollState),
             verticalArrangement = Arrangement.spacedBy(12.dp)
         ) {
-            StyledList(title = "Required Permissions") {
+            StyledList(title = stringResource(R.string.required_permissions)) {
-                val animatedBluetoothIconColor by animateColorAsState(if (bluetoothPermissionsState.allPermissionsGranted) MaterialTheme.colorScheme.onPrimaryContainer else MaterialTheme.colorScheme.onSurface)
+                val animatedBluetoothIconColor by animateColorAsState(if (bluetoothPermissionsState.allPermissionsGranted) MaterialTheme.colorScheme.onPrimaryContainer else MaterialTheme.colorScheme.onSurfaceVariant)
                 val animatedBluetoothContainerColor by animateColorAsState(
-                    if (bluetoothPermissionsState.allPermissionsGranted) MaterialTheme.colorScheme.primaryContainer else MaterialTheme.colorScheme.surfaceContainerHighest
+                    if (bluetoothPermissionsState.allPermissionsGranted) MaterialTheme.colorScheme.primaryContainer else MaterialTheme.colorScheme.surfaceVariant
                 )
 
                 StyledListItem(
-                    contentText = "Bluetooth",
+                    contentText = stringResource(R.string.bluetooth),
                     onClick = if (!bluetoothPermissionsState.allPermissionsGranted) {
                         {
                             grantingAll = false
                             bluetoothPermissionsState.launchMultiplePermissionRequest()
                         }
                     } else null,
-                    supportingText = "Required to communicate with AirPods",
+                    supportingText = stringResource(R.string.permission_description_bluetooth),
                     orientation = StyledListItemOrientation.Vertical,
                     leadingContent = {
                         Box(
@@ -172,27 +187,27 @@ fun PermissionsPage(
                     },
                 )
             }
-            StyledList(title = "Optional Permissions") {
+            StyledList(title = stringResource(R.string.optional_permissions)) {
                 val animatedNotificationsIconColor by animateColorAsState(
-                    if (notificationPermissionState.status.isGranted) MaterialTheme.colorScheme.onPrimaryContainer else MaterialTheme.colorScheme.onSurface
+                    if (notificationPermissionState.status.isGranted) MaterialTheme.colorScheme.onPrimaryContainer else MaterialTheme.colorScheme.onSurfaceVariant
                 )
                 val animatedNotificationsContainerColor by animateColorAsState(
-                    if (notificationPermissionState.status.isGranted) MaterialTheme.colorScheme.primaryContainer else MaterialTheme.colorScheme.surfaceContainerHighest
+                    if (notificationPermissionState.status.isGranted) MaterialTheme.colorScheme.primaryContainer else MaterialTheme.colorScheme.surfaceVariant
                 )
-                val animatedPhoneIconColor by animateColorAsState(if (phonePermissionState.allPermissionsGranted) MaterialTheme.colorScheme.onPrimaryContainer else MaterialTheme.colorScheme.onSurface)
+                val animatedPhoneIconColor by animateColorAsState(if (phonePermissionState.allPermissionsGranted) MaterialTheme.colorScheme.onPrimaryContainer else MaterialTheme.colorScheme.onSurfaceVariant)
                 val animatedPhoneContainerColor by animateColorAsState(
-                    if (phonePermissionState.allPermissionsGranted) MaterialTheme.colorScheme.primaryContainer else MaterialTheme.colorScheme.surfaceContainerHighest
+                    if (phonePermissionState.allPermissionsGranted) MaterialTheme.colorScheme.primaryContainer else MaterialTheme.colorScheme.surfaceVariant
                 )
 
                 StyledListItem(
-                    contentText = "Notifications",
+                    contentText = stringResource(R.string.notifications),
                     onClick = if (!notificationPermissionState.status.isGranted) {
                         {
                             grantingAll = false
                             notificationPermissionState.launchPermissionRequest()
                         }
                     } else null,
-                    supportingText = "Show battery status",
+                    supportingText = stringResource(R.string.permission_description_notification),
                     orientation = StyledListItemOrientation.Vertical,
                     leadingContent = {
                         Box(
@@ -215,14 +230,14 @@ fun PermissionsPage(
                     },
                 )
                 StyledListItem(
-                    contentText = "Phone",
+                    contentText = stringResource(R.string.phone),
                     onClick = if (!phonePermissionState.allPermissionsGranted) {
                         {
                             grantingAll = false
                             phonePermissionState.launchMultiplePermissionRequest()
                         }
                     } else null,
-                    supportingText = "Respond to phone calls with head gestures",
+                    supportingText = stringResource(R.string.permission_description_phone),
                     orientation = StyledListItemOrientation.Vertical,
                     leadingContent = {
                         Box(
@@ -237,7 +252,7 @@ fun PermissionsPage(
                         ) {
                             Icon(
                                 imageVector = MaterialIcons.Call,
-                                contentDescription = "bluetooth",
+                                contentDescription = "call",
                                 modifier = Modifier.size(24.dp),
                                 tint = animatedPhoneIconColor
                             )
@@ -246,11 +261,44 @@ fun PermissionsPage(
                 )
             }
 
-            val animatedOverlayIconColor by animateColorAsState(if (canDrawOverlays.value) MaterialTheme.colorScheme.onPrimaryContainer else MaterialTheme.colorScheme.onSurface)
+            val animatedHealthConnectIconColor by animateColorAsState(if (healthPermissions.status.isGranted) MaterialTheme.colorScheme.onPrimaryContainer else MaterialTheme.colorScheme.onSurfaceVariant)
-            val animatedOverlayContainerColor by animateColorAsState(if (canDrawOverlays.value) MaterialTheme.colorScheme.primaryContainer else MaterialTheme.colorScheme.surfaceContainerHighest)
+            val animatedHealthConnectContainerColor by animateColorAsState(if (healthPermissions.status.isGranted) MaterialTheme.colorScheme.primaryContainer else MaterialTheme.colorScheme.surfaceVariant)
 
             StyledListItem(
-                contentText = "Display over other apps",
+                contentText = stringResource(R.string.permission_healthconnect),
+                onClick = if (!healthPermissions.status.isGranted) {
+                    {
+                        grantingAll = false
+                        healthPermissions.launchPermissionRequest()
+                    }
+                } else null,
+                supportingText = stringResource(R.string.permission_description_healthconnect),
+                leadingContent = {
+                    Box(
+                        modifier = Modifier
+                            .size(48.dp)
+                            .background(
+                                animatedHealthConnectContainerColor,
+                                MaterialShapes.SoftBurst.normalized()
+                                    .toShape()
+                            ),
+                        contentAlignment = Alignment.Center
+                    ) {
+                        Icon(
+                            imageVector = MaterialIcons.VitalSigns,
+                            contentDescription = "vital signs",
+                            modifier = Modifier.size(24.dp),
+                            tint = animatedHealthConnectIconColor
+                        )
+                    }
+                }
+            )
+
+            val animatedOverlayIconColor by animateColorAsState(if (canDrawOverlays.value) MaterialTheme.colorScheme.onPrimaryContainer else MaterialTheme.colorScheme.onSurfaceVariant)
+            val animatedOverlayContainerColor by animateColorAsState(if (canDrawOverlays.value) MaterialTheme.colorScheme.primaryContainer else MaterialTheme.colorScheme.surfaceVariant)
+
+            StyledListItem(
+                contentText = stringResource(R.string.permission_overlay),
                 onClick = if (!canDrawOverlays.value) {
                     {
                         grantingAll = false
@@ -261,7 +309,7 @@ fun PermissionsPage(
                         context.startActivity(intent)
                     }
                 } else null,
-                supportingText = "Show popups when AirPods are nearby or audio switches to them.",
+                supportingText = stringResource(R.string.permission_description_overlay),
                 orientation = StyledListItemOrientation.Vertical,
                 leadingContent = {
                     Box(
@@ -276,7 +324,7 @@ fun PermissionsPage(
                     ) {
                         Icon(
                             imageVector = MaterialIcons.Overlay,
-                            contentDescription = "bluetooth",
+                            contentDescription = "overlay",
                             modifier = Modifier.size(24.dp),
                             tint = animatedOverlayIconColor
                         )

android/app/src/main/kotlin/me/kavishdevar/librepods/presentation/screens/onboarding/PrivacyPolicyPage.kt

@@ -48,42 +48,50 @@ fun PrivacyPolicyPage(
 
             Text(
                 text = "Overview",
-                style = MaterialTheme.typography.titleLarge
+                style = MaterialTheme.typography.titleLarge,
+                color = MaterialTheme.colorScheme.onSurface
             )
 
             Text(
                 text = "LibrePods does not collect, store, sell, or share personal information for advertising, analytics, tracking, or profiling purposes. The app does not include analytics, crash reporting, telemetry, advertising SDKs, or tracking services.",
-                style = MaterialTheme.typography.bodyMedium
+                style = MaterialTheme.typography.bodyMedium,
+                color = MaterialTheme.colorScheme.onSurface
             )
 
             Text(
                 text = "All information remains on your device unless you explicitly choose to contact me, create a GitHub issue from the app, or make a purchase or sponsorship through a third-party platform.",
-                style = MaterialTheme.typography.bodyMedium
+                style = MaterialTheme.typography.bodyMedium,
+                color = MaterialTheme.colorScheme.onSurface
             )
 
             Text(
                 text = "Third Party Services",
-                style = MaterialTheme.typography.titleLarge
+                style = MaterialTheme.typography.titleLarge,
+                color = MaterialTheme.colorScheme.onSurface
             )
 
             Text(
                 text = "LibrePods provides several ways to contact me, including email, Discord, and GitHub Issues.",
-                style = MaterialTheme.typography.bodyMedium
+                style = MaterialTheme.typography.bodyMedium,
+                color = MaterialTheme.colorScheme.onSurface
             )
 
             Text(
                 text = "Email",
-                style = MaterialTheme.typography.titleMedium
+                style = MaterialTheme.typography.titleMedium,
+                color = MaterialTheme.colorScheme.onSurface
             )
 
             Text(
                 text = "If you contact me by email, I receive your email address and any information you choose to include in your message. When using the contact form within LibrePods, your email client will open with a pre-filled email address, the subject line and body that you fill out. The body will also include LibrePods version information and device information to help with troubleshooting.",
-                style = MaterialTheme.typography.bodyMedium
+                style = MaterialTheme.typography.bodyMedium,
+                color = MaterialTheme.colorScheme.onSurface
             )
 
             Text(
                 text = "You can edit or remove any of this information before sending the email.",
-                style = MaterialTheme.typography.bodyMedium
+                style = MaterialTheme.typography.bodyMedium,
+                color = MaterialTheme.colorScheme.onSurface
             )
 
             Text(
@@ -93,22 +101,26 @@ fun PrivacyPolicyPage(
 
             Text(
                 text = "The app provides a link to the LibrePods Discord server. If you choose to join the Discord server, you will be subject to Discord's privacy policy.",
-                style = MaterialTheme.typography.bodyMedium
+                style = MaterialTheme.typography.bodyMedium,
+                color = MaterialTheme.colorScheme.onSurface
             )
 
             Text(
                 text = "I do not receive any information about you from Discord other than what is publicly visible in the Discord server, such as your username, joining date, common servers, and any messages or content you post in the server, unless you choose to share it with me in the Discord server.",
-                style = MaterialTheme.typography.bodyMedium
+                style = MaterialTheme.typography.bodyMedium,
+                color = MaterialTheme.colorScheme.onSurface
             )
 
             Text(
                 text = "GitHub Issues",
-                style = MaterialTheme.typography.titleMedium
+                style = MaterialTheme.typography.titleMedium,
+                color = MaterialTheme.colorScheme.onSurface
             )
 
             Text(
                 text = "When creating a GitHub issue through LibrePods, the app will pre-fill the issue form with:",
-                style = MaterialTheme.typography.bodyMedium
+                style = MaterialTheme.typography.bodyMedium,
+                color = MaterialTheme.colorScheme.onSurface
             )
 
             Column(
@@ -117,68 +129,86 @@ fun PrivacyPolicyPage(
             ) {
                 Text(
                     "• LibrePods version name and version code",
-                    style = MaterialTheme.typography.bodyMedium
+                    style = MaterialTheme.typography.bodyMedium,
+                    color = MaterialTheme.colorScheme.onSurface
                 )
                 Text(
                     text = "• Device manufacturer and model",
-                    style = MaterialTheme.typography.bodyMedium
+                    style = MaterialTheme.typography.bodyMedium,
+                    color = MaterialTheme.colorScheme.onSurface
                 )
                 Text(
                     text = "• Android build information",
-                    style = MaterialTheme.typography.bodyMedium
+                    style = MaterialTheme.typography.bodyMedium,
+                    color = MaterialTheme.colorScheme.onSurface
                 )
                 Text(
                     text = "• Installation source (Google Play or GitHub)",
-                    style = MaterialTheme.typography.bodyMedium
+                    style = MaterialTheme.typography.bodyMedium,
+                    color = MaterialTheme.colorScheme.onSurface
                 )
             }
 
             Text(
                 text = "This information helps diagnose bugs and provide support. No information is sent automatically. The information is only submitted if you choose to create the GitHub issue.",
-                style = MaterialTheme.typography.bodyMedium
+                style = MaterialTheme.typography.bodyMedium,
+                color = MaterialTheme.colorScheme.onSurface
             )
 
             Text(
-                text = "Payments", style = MaterialTheme.typography.titleLarge
+                text = "Payments",
+                style = MaterialTheme.typography.titleLarge,
+                color = MaterialTheme.colorScheme.onSurface
             )
 
             if (BuildConfig.PLAY_BUILD) {
                 Text(
-                    text = "Google Play", style = MaterialTheme.typography.titleMedium
+                    text = "Google Play",
+                    style = MaterialTheme.typography.titleMedium,
+                    color = MaterialTheme.colorScheme.onSurface
                 )
 
                 Text(
                     text = "When using the version available on Google Play, purchases are processed by Google Play.",
-                    style = MaterialTheme.typography.bodyMedium
+                    style = MaterialTheme.typography.bodyMedium,
+                    color = MaterialTheme.colorScheme.onSurface
                 )
 
                 Text(
                     text = "LibrePods verifies the purchase with Google Play on-device, not with a remote server that I control. I do not receive any information about you or your purchase from Google Play. Payment processing is handled entirely by Google Play, and I do not have access to any of your payment information.",
-                    style = MaterialTheme.typography.bodyMedium
+                    style = MaterialTheme.typography.bodyMedium,
+                    color = MaterialTheme.colorScheme.onSurface
                 )
             } else {
                 Text(
-                    text = "GitHub Sponsors", style = MaterialTheme.typography.titleMedium
+                    text = "GitHub Sponsors",
+                    style = MaterialTheme.typography.titleMedium,
+                    color = MaterialTheme.colorScheme.onSurface
                 )
 
                 Text(
                     text = "When using the FOSS version available on GitHub, the upgrade button links to GitHub Sponsors. If you choose to sponsor LibrePods, your sponsorship is processed by GitHub.",
-                    style = MaterialTheme.typography.bodyMedium
+                    style = MaterialTheme.typography.bodyMedium,
+                    color = MaterialTheme.colorScheme.onSurface
                 )
 
                 Text(
                     text = "Your username and country/region are shared with me when you sponsor LibrePods. Depending on your GitHub Sponsors privacy settings, I may also receive your email address.",
-                    style = MaterialTheme.typography.bodyMedium
+                    style = MaterialTheme.typography.bodyMedium,
+                    color = MaterialTheme.colorScheme.onSurface
                 )
             }
 
             Text(
-                text = "Contact", style = MaterialTheme.typography.titleLarge
+                text = "Contact",
+                style = MaterialTheme.typography.titleLarge,
+                color = MaterialTheme.colorScheme.onSurface
             )
 
             Text(
                 text = "If you have questions about this privacy policy, please contact me via email at privacy@kavish.xyz.",
-                style = MaterialTheme.typography.bodyMedium
+                style = MaterialTheme.typography.bodyMedium,
+                color = MaterialTheme.colorScheme.onSurface
             )
 
             Button(
@@ -187,7 +217,7 @@ fun PrivacyPolicyPage(
             ) {
                 Text(
                     text = stringResource(R.string.i_agree),
-                    style = MaterialTheme.typography.labelMediumEmphasized
+                    style = MaterialTheme.typography.labelMediumEmphasized,
                 )
             }
 

android/app/src/main/kotlin/me/kavishdevar/librepods/presentation/viewmodel/AppleViewModel.kt

@@ -21,35 +21,54 @@ package me.kavishdevar.librepods.presentation.viewmodel
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import kotlinx.coroutines.Job
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.SharingStarted
 import kotlinx.coroutines.flow.combine
 import kotlinx.coroutines.flow.stateIn
+import kotlinx.coroutines.flow.transformLatest
 import kotlinx.coroutines.launch
 import me.kavishdevar.librepods.billing.BillingManager
 import me.kavishdevar.librepods.bluetooth.aacp.types.ControlCommandIdentifier
 import me.kavishdevar.librepods.bluetooth.att.ATTHandle
 import me.kavishdevar.librepods.data.StemAction
+import me.kavishdevar.librepods.data.heartrate.HeartRateSample
 import me.kavishdevar.librepods.data.recording.Recording
 import me.kavishdevar.librepods.data.xposed.XposedRemotePrefProvider
+import me.kavishdevar.librepods.database.app.AppSettingsEntity
+import me.kavishdevar.librepods.database.app.AppStateEntity
 import me.kavishdevar.librepods.devices.AppleDevice
 import me.kavishdevar.librepods.devices.AppleMetadata
 import me.kavishdevar.librepods.devices.AppleSettings
 import me.kavishdevar.librepods.devices.AppleState
+import me.kavishdevar.librepods.repository.AppDataRepository
+import me.kavishdevar.librepods.repository.HeartRateRepository
 import me.kavishdevar.librepods.repository.RecordingRepository
+import kotlin.time.Duration
+import kotlin.time.Instant
 
 data class AppleUiState(
     val state: AppleState = AppleState(),
     val settings: AppleSettings = AppleSettings(),
     val metadata: AppleMetadata = AppleMetadata(),
 
+    val appState: AppStateEntity = AppStateEntity(),
+    val appSettings: AppSettingsEntity = AppSettingsEntity(),
+
     val isPremium: Boolean = false,
     val vendorIdHook: Boolean = false,
     val recordings: List<Recording> = emptyList(),
+
+    val heartRateSamples: List<HeartRateSample> = emptyList(),
+
+    val heartRateRange: ClosedRange<Long>? = null,
 )
 
 class AppleViewModel(
     private val device: AppleDevice,
+    private val appDataRepository: AppDataRepository,
     private val recordingRepository: RecordingRepository,
+    private val heartRateRepository: HeartRateRepository
 ) : ViewModel(), DeviceViewModel {
     val billingManager = BillingManager
 
@@ -57,12 +76,42 @@ class AppleViewModel(
 
     private var attObserveJob: Job? = null
 
-    val uiState = combine(
+    private val _heartRateRange = MutableStateFlow<ClosedRange<Long>?>(null)
+
+    private val heartRateSamples: Flow<List<HeartRateSample>> = _heartRateRange
+        .transformLatest { range ->
+            if (range == null) {
+                emit(emptyList())
+            } else {
+                val startInstant = Instant.fromEpochMilliseconds(range.start)
+                val endInstant = Instant.fromEpochMilliseconds(range.endInclusive)
+                val samples = heartRateRepository.get(startInstant, endInstant)
+                emit(samples)
+            }
+        }
+
+    private val deviceDetails = combine(
         device.state,
         device.settings,
-        device.metadata,
+        device.metadata
+    ) { state, settings, metadata ->
+        Triple(state, settings, metadata)
+    }
+
+    private val appData = combine(
+        appDataRepository.state,
+        appDataRepository.settings
+    ) { appState, appSettings ->
+        Pair(appState, appSettings)
+    }
+
+    val uiState = combine(
+        deviceDetails,
+        appData,
         billingManager.provider.isPremium,
-    ) { state, settings, metadata, isPremium ->
+        _heartRateRange,
+        heartRateSamples
+    ) { (state, settings, metadata), (appState, appSettings), isPremium, heartRateRange, heartRateSamples ->
         AppleUiState(
             state = state,
             settings = settings,
@@ -71,7 +120,11 @@ class AppleViewModel(
             vendorIdHook = XposedRemotePrefProvider.create().getBoolean(
                 "vendor_id_hook",
                 false
-            ) // TODO: make this a Flow, even if it means polling every few seconds
+            ), // TODO: make this a Flow (even if it means polling every few seconds?)
+            heartRateRange = heartRateRange,
+            heartRateSamples = heartRateSamples,
+            appState = appState,
+            appSettings = appSettings
         )
     }.stateIn(
         viewModelScope,
@@ -133,7 +186,17 @@ class AppleViewModel(
     fun setCustomEqEnabled(enabled: Boolean) = device.setCustomEqEnabled(enabled)
     fun setCustomEq(low: Int, mid: Int, high: Int) = device.setCustomEq(low, mid, high)
 
-    fun testHeadGestures() = device.testHeadGestures()
+    fun detectHeadGestures(callback: (Boolean) -> Unit) = device.detectHeadGestures(callback)
+
+    fun setHeadGesturesVerticalOffset(offset: Int) = device.setHeadGesturesVerticalOffset(offset)
+    fun setHeadGesturesHorizontalOffset(offset: Int) = device.setHeadGesturesHorizontalOffset(offset)
+    fun setHeadTrackingInterval(interval: Duration) = device.setHeadTrackingInterval(interval)
+
+    fun startHr() = device.startHr()
+    fun stopHr() = device.stopHr()
+    fun setHrRange(range: ClosedRange<Long>) {
+        _heartRateRange.value = range
+    }
 
     fun sendRawPacket(data: ByteArray): Boolean = device.sendRawPacket(data)
 }

android/app/src/main/kotlin/me/kavishdevar/librepods/repository/AppleRepository.kt

@@ -39,7 +39,7 @@ class AppleRepository(
     }
 
     suspend fun saveCacheFromState(macAddress: MacAddress, state: AppleState) {
-        Log.d(TAG, "Saving AppleCache from AppleState for ${macAddress.toRedactedString()}: $state")
+        Log.d(TAG, "Saving AppleCache from AppleState for ${macAddress.toRedactedString()}")
         val cache = try {
             AppleCache(
                 capabilities = state.capabilities,
@@ -48,7 +48,7 @@ class AppleRepository(
                 customEq = state.customEq
             )
         } catch (e: Exception) {
-            Log.e(TAG, "Failed to create AppleCache from AppleState for ${macAddress.toRedactedString()}: $state", e)
+            Log.e(TAG, "Failed to create AppleCache from AppleState for ${macAddress.toRedactedString()}", e)
             return
         }
 

android/app/src/main/kotlin/me/kavishdevar/librepods/repository/HeartRateRepository.kt

@@ -0,0 +1,29 @@
+package me.kavishdevar.librepods.repository
+
+import me.kavishdevar.librepods.data.heartrate.HeartRateDao
+import me.kavishdevar.librepods.data.heartrate.HeartRateSample
+import me.kavishdevar.librepods.database.heartrate.HeartRateSampleEntity
+import kotlin.time.Instant
+
+class HeartRateRepository(
+    private val dao: HeartRateDao,
+) {
+    suspend fun insert(sample: HeartRateSample) {
+        dao.insert(sample.toEntity())
+    }
+
+    suspend fun get(
+        start: Instant,
+        end: Instant,
+    ): List<HeartRateSample> = dao.get(start, end).map { it.toSample() }
+
+    private fun HeartRateSample.toEntity() = HeartRateSampleEntity(
+        timestamp = timestamp,
+        bpm = bpm
+    )
+
+    private fun HeartRateSampleEntity.toSample() = HeartRateSample(
+        bpm = bpm,
+        timestamp = timestamp
+    )
+}

android/app/src/main/kotlin/me/kavishdevar/librepods/services/LibrePodsService.kt

@@ -18,16 +18,21 @@ import android.content.ComponentName
 import android.content.Context
 import android.content.Intent
 import android.content.IntentFilter
+import android.content.pm.PackageManager
 import android.media.AudioManager
 import android.os.BatteryManager
 import android.os.Binder
+import android.os.Build
 import android.os.IBinder
 import android.os.ParcelUuid
+import android.os.ext.SdkExtensions
 import android.provider.Settings
 import android.util.Log
 import android.view.View
 import android.widget.RemoteViews
 import androidx.core.app.NotificationCompat
+import androidx.health.connect.client.permission.HealthPermission
+import androidx.health.connect.client.records.HeartRateRecord
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
@@ -42,6 +47,7 @@ import me.kavishdevar.librepods.bluetooth.MacAddress
 import me.kavishdevar.librepods.bluetooth.aacp.types.ControlCommandIdentifier
 import me.kavishdevar.librepods.bluetooth.aacp.types.MagicKeyType
 import me.kavishdevar.librepods.bluetooth.verifyRPA
+import me.kavishdevar.librepods.data.heartrate.HeartRateSample
 import me.kavishdevar.librepods.database.app.AppSettingsEntity
 import me.kavishdevar.librepods.devices.AppleDevice
 import me.kavishdevar.librepods.devices.AppleSettings
@@ -58,7 +64,10 @@ import me.kavishdevar.librepods.presentation.overlays.IslandWindow
 import me.kavishdevar.librepods.presentation.widgets.BatteryWidget
 import me.kavishdevar.librepods.utils.MediaController
 import me.kavishdevar.librepods.utils.redactMac
+import java.time.ZoneOffset
+import kotlin.time.Duration
 import kotlin.time.Duration.Companion.seconds
+import kotlin.time.toJavaInstant
 
 private const val TAG = "LibrePodsService"
 
@@ -94,6 +103,14 @@ class LibrePodsService : Service() {
         (application as LibrePodsApplication).widgetConfigRepository
     }
 
+    private val heartRateRepository by lazy {
+        (application as LibrePodsApplication).heartRateRepository
+    }
+
+    private val healthConnectClient by lazy {
+        (application as LibrePodsApplication).healthConnectClient
+    }
+
     private val hasConnectedToAACP by lazy {
         appDataRepository.state.value.hasConnectedToAACP
     }
@@ -684,6 +701,24 @@ class LibrePodsService : Service() {
                         6, 8, 9 -> MediaController.stopSpeaking()
                     }
                 }
+
+                state.currentHeartRate?.timestamp != previousState.currentHeartRate?.timestamp -> {
+                    state.currentHeartRate?.let { heartRateSample ->
+                        Log.i(
+                            TAG,
+                            "current heart rate changed from device ${device.macAddress.toRedactedString()}"
+                        )
+                        Log.d(
+                            TAG,
+                            "current heart rate: ${heartRateSample.bpm} bpm, timestamp: ${heartRateSample.timestamp.toJavaInstant()}. processing."
+                        )
+
+                        processHeartRateSample(
+                            heartRateSample = heartRateSample,
+                            interval = state.heartRateInterval
+                        )
+                    }
+                }
             }
             previousState = state
         }
@@ -1066,6 +1101,13 @@ class LibrePodsService : Service() {
                     device.disableAudio(this)
                     device.disconnectAudio(this)
                 }
+
+                // not the right place because the stream doesn't switch to the remaining bud when the active one is removed
+                if (device is AppleDevice && device.state.value.hrmActive) {
+                    device.updateState {
+                        it.copy(hrmActive = false)
+                    }
+                }
             }
         }
 
@@ -1089,6 +1131,44 @@ class LibrePodsService : Service() {
         }
     }
 
+    private fun processHeartRateSample(heartRateSample: HeartRateSample, interval: Duration) {
+        CoroutineScope(Dispatchers.IO).launch {
+            Log.d(TAG, "inserting to local db")
+            heartRateRepository.insert(heartRateSample)
+        }
+
+        if (SdkExtensions.getExtensionVersion(Build.VERSION_CODES.UPSIDE_DOWN_CAKE) >= 7) {
+            if (checkSelfPermission(HealthPermission.getWritePermission(HeartRateRecord::class)) != PackageManager.PERMISSION_GRANTED) return
+            val healthConnectHeartRateSample = HeartRateRecord.Sample(
+                time = heartRateSample.timestamp.toJavaInstant(),
+                beatsPerMinute = heartRateSample.bpm.toLong()
+            )
+
+            val zoneOffset = ZoneOffset.systemDefault().rules.getOffset(heartRateSample.timestamp.toJavaInstant())
+
+            val heartRateRecord = HeartRateRecord(
+                startTime = (heartRateSample.timestamp - interval).toJavaInstant(),
+                endTime = heartRateSample.timestamp.toJavaInstant(),
+                startZoneOffset = zoneOffset,
+                endZoneOffset = zoneOffset,
+                samples = listOf(healthConnectHeartRateSample),
+                metadata = androidx.health.connect.client.records.metadata.Metadata.autoRecorded(
+                    device = androidx.health.connect.client.records.metadata.Device(type = androidx.health.connect.client.records.metadata.Device.TYPE_HEARABLE)
+                )
+            )
+
+            if (healthConnectClient != null) {
+                CoroutineScope(Dispatchers.IO).launch {
+                    healthConnectClient!!.insertRecords(listOf(heartRateRecord))
+                }
+            } else {
+                Log.w(TAG, "Health Connect client not available")
+            }
+        } else {
+            Log.d(TAG, "U SDK Extension <7")
+        }
+    }
+
     // TODO: Shizuku
     private fun setAppleBluetoothMetadata(
         @Suppress("unused") device: AppleDevice

android/app/src/main/kotlin/me/kavishdevar/librepods/utils/GestureDetector.kt

@@ -16,20 +16,16 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-@file:OptIn(ExperimentalEncodingApi::class)
-
 package me.kavishdevar.librepods.utils
 
-import android.os.Build
 import android.util.Log
-import androidx.annotation.RequiresApi
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.delay
+import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
-import me.kavishdevar.librepods.services.LibrePodsService
 import java.util.Collections
 import java.util.concurrent.CopyOnWriteArrayList
 import kotlin.io.encoding.ExperimentalEncodingApi
@@ -37,10 +33,10 @@ import kotlin.math.abs
 import kotlin.math.max
 import kotlin.math.min
 import kotlin.math.pow
+import kotlin.time.Duration.Companion.milliseconds
 
-class GestureDetector(
+// TODO: rewrite
-    private val librepodsService: LibrePodsService
+class GestureDetector {
-) {
     companion object {
         private const val TAG = "GestureDetector"
 
@@ -54,8 +50,6 @@ class GestureDetector(
         private const val MAX_VALID_ORIENTATION_VALUE = 6000
     }
 
-//    val audio = GestureFeedback(ServiceManager.getService()?.baseContext!!)
-
     private val horizontalBuffer = Collections.synchronizedList(ArrayList<Double>())
     private val verticalBuffer = Collections.synchronizedList(ArrayList<Double>())
 
@@ -86,7 +80,7 @@ class GestureDetector(
 
     private var isRunning = false
     private var detectionJob: Job? = null
-    private var gestureDetectedCallback: ((Boolean) -> Unit)? = null
+    private var processingJob: Job? = null
 
     private var significantMotion = false
     private var lastSignificantMotionTime = 0L
@@ -96,48 +90,51 @@ class GestureDetector(
         while (verticalAvgBuffer.size < 3) verticalAvgBuffer.add(0.0)
     }
 
-fun startDetection(doNotStop: Boolean = false, onGestureDetected: (Boolean) -> Unit) {
+    fun startDetection(acceleration: StateFlow<Acceleration>, callback: (Boolean) -> Unit) {
         if (isRunning) return
 
         Log.d(TAG, "Starting gesture detection...")
         isRunning = true
-        gestureDetectedCallback = onGestureDetected
-
-//        Log.d(TAG, "started: ${airPodsService.startHeadTracking()}")
 
         clearData()
 
         prevHorizontal = 0.0
         prevVertical = 0.0
 
+        processingJob = CoroutineScope(Dispatchers.Default).launch {
+            acceleration.collect {
+                processHeadOrientation(it.horizontal.toInt(), it.vertical.toInt())
+            }
+        }
+
         detectionJob = CoroutineScope(Dispatchers.Default).launch {
             while (isRunning) {
-                delay(50)
+                delay(50.milliseconds)
 
                 val gesture = detectGestures()
                 if (gesture != null) {
                     withContext(Dispatchers.Main) {
-//                        audio.playConfirmation(gesture)
+                        GestureFeedback.playConfirmation(gesture)
 
-                        gestureDetectedCallback?.invoke(gesture)
+                        callback.invoke(gesture)
-                        stopDetection(doNotStop)
+                        stopDetection()
                     }
                     break
                 }
             }
         }
     }
-    fun stopDetection(doNotStop: Boolean = false) {
+    fun stopDetection() {
         if (!isRunning) return
 
         Log.d(TAG, "Stopping gesture detection")
         isRunning = false
 
-//        if (!doNotStop) airPodsService.stopHeadTracking()
-
         detectionJob?.cancel()
         detectionJob = null
-        gestureDetectedCallback = null
+
+        processingJob?.cancel()
+        processingJob = null
    }
 
     fun processHeadOrientation(horizontal: Int, vertical: Int) {
@@ -156,7 +153,7 @@ fun startDetection(doNotStop: Boolean = false, onGestureDetected: (Boolean) -> U
 
         if (significantHorizontal && (!significantVertical || abs(horizontalDelta) > abs(verticalDelta))) {
             CoroutineScope(Dispatchers.Main).launch {
-//                audio.playDirectional(isVertical = false, value = horizontalDelta)
+                GestureFeedback.playDirectional(isVertical = false, value = horizontalDelta)
             }
             significantMotion = true
             lastSignificantMotionTime = System.currentTimeMillis()
@@ -164,7 +161,7 @@ fun startDetection(doNotStop: Boolean = false, onGestureDetected: (Boolean) -> U
         }
         else if (significantVertical) {
             CoroutineScope(Dispatchers.Main).launch {
-//                audio.playDirectional(isVertical = true, value = verticalDelta)
+                GestureFeedback.playDirectional(isVertical = true, value = verticalDelta)
             }
             significantMotion = true
             lastSignificantMotionTime = System.currentTimeMillis()
@@ -363,7 +360,7 @@ fun startDetection(doNotStop: Boolean = false, onGestureDetected: (Boolean) -> U
 
     private fun detectGestures(): Boolean? {
         val requiredExtremes = getRequiredExtremes()
-        Log.d(TAG, "Current required extremes: $requiredExtremes")
+//        Log.d(TAG, "Current required extremes: $requiredExtremes")
 
         if (verticalPeaks.size + verticalTroughs.size >= requiredExtremes) {
             val allExtremes = (verticalPeaks + verticalTroughs).sortedBy { it.first }

android/app/src/main/kotlin/me/kavishdevar/librepods/utils/GestureFeedback.kt

@@ -23,14 +23,12 @@ package me.kavishdevar.librepods.utils
 import android.content.Context
 import android.media.AudioAttributes
 import android.media.SoundPool
-import android.os.Build
 import android.os.SystemClock
 import android.util.Log
-import androidx.annotation.RequiresApi
 import me.kavishdevar.librepods.R
 import java.util.concurrent.atomic.AtomicBoolean
 
-class GestureFeedback(context: Context) {
+object GestureFeedback {
 
     private val TAG = "GestureFeedback"
 
@@ -71,7 +69,7 @@ class GestureFeedback(context: Context) {
     private val RIGHT_VOLUME = Pair(0.0f, 1.0f)
     private val VERTICAL_VOLUME = Pair(1.0f, 1.0f)
 
-    init {
+    fun init (context: Context) {
         soundId = soundPool.load(context, R.raw.blip_no, 1)
         confirmYesId = soundPool.load(context, R.raw.confirm_yes, 1)
         confirmNoId = soundPool.load(context, R.raw.confirm_no, 1)
@@ -84,7 +82,6 @@ class GestureFeedback(context: Context) {
         }
     }
 
-    @RequiresApi(Build.VERSION_CODES.R)
     fun playDirectional(isVertical: Boolean, value: Double) {
         if (!soundsLoaded.get()) {
             Log.d(TAG, "Sounds not yet loaded, skipping playback")

android/app/src/main/kotlin/me/kavishdevar/librepods/utils/HeadOrientation.kt

@@ -20,82 +20,19 @@ package me.kavishdevar.librepods.utils
 
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.asStateFlow
-import kotlin.math.roundToInt
 
-data class Orientation(val pitch: Float = 0f, val yaw: Float = 0f)
 data class Acceleration(val vertical: Float = 0f, val horizontal: Float = 0f)
 
+// TODO: remove
 object HeadTracking {
-    private val _orientation = MutableStateFlow(Orientation())
-    val orientation = _orientation.asStateFlow()
-
     private val _acceleration = MutableStateFlow(Acceleration())
     val acceleration = _acceleration.asStateFlow()
 
-    private val calibrationSamples = mutableListOf<Triple<Int, Int, Int>>()
+    fun addAccel(vert: Float, horiz: Float) {
-    private var isCalibrated = false
+        _acceleration.value = Acceleration(vert, horiz)
-    private var o1Neutral = 19000
-    private var o2Neutral = 0
-    private var o3Neutral = 0
-
-    private const val CALIBRATION_SAMPLE_COUNT = 10
-    private const val ORIENTATION_OFFSET = 5500
-
-    fun processPacket(packet: ByteArray) {
-        val o1 = bytesToInt(packet[43], packet[44])
-        val o2 = bytesToInt(packet[45], packet[46])
-        val o3 = bytesToInt(packet[47], packet[48])
-
-        val horizontalAccel = bytesToInt(packet[51], packet[52]).toFloat()
-        val verticalAccel = bytesToInt(packet[53], packet[54]).toFloat()
-
-        if (!isCalibrated) {
-            calibrationSamples.add(Triple(o1, o2, o3))
-            if (calibrationSamples.size >= CALIBRATION_SAMPLE_COUNT) {
-                calibrate()
-            }
-            return
-        }
-
-        val orientation = calculateOrientation(o1, o2, o3)
-        _orientation.value = orientation
-
-        _acceleration.value = Acceleration(verticalAccel, horizontalAccel)
-    }
-
-    private fun calibrate() {
-        if (calibrationSamples.size < 3) return
-
-        // Add offset during calibration
-        o1Neutral = calibrationSamples.map { it.first + ORIENTATION_OFFSET }.average().roundToInt()
-        o2Neutral = calibrationSamples.map { it.second + ORIENTATION_OFFSET }.average().roundToInt()
-        o3Neutral = calibrationSamples.map { it.third + ORIENTATION_OFFSET }.average().roundToInt()
-
-        isCalibrated = true
-    }
-
-    @Suppress("UnusedVariable")
-    private fun calculateOrientation(o1: Int, o2: Int, o3: Int): Orientation {
-        if (!isCalibrated) return Orientation()
-
-        val o1Norm = (o1 + ORIENTATION_OFFSET) - o1Neutral
-        val o2Norm = (o2 + ORIENTATION_OFFSET) - o2Neutral
-        val o3Norm = (o3 + ORIENTATION_OFFSET) - o3Neutral
-
-        val pitch = (o2Norm + o3Norm) / 2f / 32000f * 180f
-        val yaw = (o2Norm - o3Norm) / 2f / 32000f * 180f
-
-        return Orientation(pitch, yaw)
-    }
-
-    private fun bytesToInt(b1: Byte, b2: Byte): Int {
-        return (b2.toInt() shl 8) or (b1.toInt() and 0xFF)
     }
 
     fun reset() {
-        calibrationSamples.clear()
-        isCalibrated = false
-        _orientation.value = Orientation()
         _acceleration.value = Acceleration()
     }
 }

android/app/src/main/kotlin/me/kavishdevar/librepods/utils/MediaController.kt

@@ -30,6 +30,7 @@ import android.util.Log
 import android.view.KeyEvent
 import kotlin.io.encoding.ExperimentalEncodingApi
 
+// TODO: fragile play/pause, don't refactor unless needed. userPlayedMedia and iPaused etc. probably should not be here
 object MediaController {
     private var initialVolume: Int? = null
     private lateinit var audioManager: AudioManager

android/app/src/main/proto/rtbuddy.proto

@@ -0,0 +1,70 @@
+syntax = "proto3";
+
+package rtbuddy;
+
+option java_package = "me.kavishdevar.librepods.bluetooth.aacp.rtbuddy.proto";
+option java_multiple_files = true;
+
+enum SensorServiceType {
+    SENSOR_SERVICE_UNKNOWN = 0;
+    DRVCOMM = 1;
+    TTR = 2;
+    ANALYTICS = 3;
+    ACTIN = 4;
+    KADABRA = 5;
+    MANDO = 6;
+    IED = 7;
+    NEO = 8;
+    NEORELAY = 9;
+    COMM = 10;
+    ACCEL = 11;
+    GYRO = 12;
+    PDR = 13;
+    ACTIVITY = 14;
+    CMA = 15;
+    DEVMOTION6 = 16;
+    SPL0 = 17;
+    HOSTLIBHID = 18;
+    HEARTRATE = 19;
+    HEARTRATEv2 = 20;
+
+    SENSOR_SERVICE_UNKNOWN_82 = 82;
+    HEARTRATE_COMMAND = 84;
+}
+
+message SensorDataWX {
+    int32 seq = 1;
+    int32 log_type = 2;
+    bytes another_sensor_stream = 3;
+    RequestAllDescriptors request_all_descriptors = 4;
+    SensorDescriptor sensor_descriptor = 5;
+
+    SensorCommand command = 7;
+    SensorServiceSetting service_settings = 8;
+    SensorTypeAck start_ack = 9;
+
+    SensorTypeAck command_ack = 12;
+}
+
+message RequestAllDescriptors {
+}
+
+message SensorCommand {
+    SensorServiceType service = 1;
+    bytes payload = 3;
+}
+
+message SensorDescriptor {
+    SensorServiceType service = 1;
+    bytes sensor_descriptor = 2;
+}
+
+message SensorTypeAck {
+    SensorServiceType service = 1;
+}
+
+message SensorServiceSetting {
+    SensorServiceType service = 1;
+    int32 setting = 2;
+    bytes configuration = 3;
+}

android/app/src/main/res/values/strings.xml

@@ -320,4 +320,24 @@
     <string name="enable_debug_mode">Enable debug mode</string>
     <string name="ble_report_delay_description">Any value greater than 0 enables batching.</string>
     <string name="ble_report_delay">Report delay (in ms)</string>
+    <string name="interval">Interval</string>
+    <string name="heart_rate_interval_description">Interval between heart rate measurements</string>
+    <string name="no_heart_rate_data">No heart rate data</string>
+    <string name="one_second">1 second</string>
+    <string name="one_minute">1 minute</string>
+    <string name="permission_healthconnect">Write heart rate to Health Connect</string>
+    <string name="permission_description_healthconnect">Allows the app to write heart rate data to Android\'s Health Connect platform.</string>
+    <string name="required_permissions">Required Permissions</string>
+    <string name="bluetooth">Bluetooth</string>
+    <string name="permission_description_bluetooth">Required to communicate with AirPods.</string>
+    <string name="optional_permissions">Optional Permissions</string>
+    <string name="notifications">Notifications</string>
+    <string name="permission_description_notification">Show battery status when connected or available nearby.</string>
+    <string name="permission_description_phone">Respond to phone calls with head gestures.</string>
+    <string name="permission_overlay">Display over other apps</string>
+    <string name="permission_description_overlay">Show popups when AirPods are nearby or audio switches to them.</string>
+    <string name="swipe_anywhere_to_go_back">Swipe anywhere to go back</string>
+    <string name="use_highest_refresh_rate">Use highest refresh rate available</string>
+    <string name="debug_mode_description">Shows extra information and settings.</string>
+    <string name="interaction">Interaction</string>
 </resources>

android/build.gradle.kts

@@ -6,5 +6,6 @@ plugins {
     alias(libs.plugins.ksp) apply false
     alias(libs.plugins.room3) apply false
     alias(libs.plugins.android.library) apply false
+    alias (libs.plugins.protobuf) apply false
 //    alias(libs.plugins.hilt) apply false
 }

android/gradle/libs.versions.toml

@@ -26,12 +26,10 @@ navevent = "1.1.2"
 m3 = "1.5.0-alpha23"
 ksp = "2.3.10"
 room = "3.0.0"
-ktxSerialization = "1.11.0"
+protobufPlugin = "0.10.0"
-junit = "4.13.2"
+protobuf = "4.35.1"
-junitVersion = "1.1.5"
+healthConnect = "1.2.0-alpha05"
-espressoCore = "3.5.1"
+foundationLayout = "1.12.0"
-appcompat = "1.6.1"
-material = "1.10.0"
 
 [libraries]
 accompanist-permissions = { module = "com.google.accompanist:accompanist-permissions", version.ref = "accompanistPermissions" }
@@ -71,11 +69,10 @@ androidx-navigationevent = { module = "androidx.navigationevent:navigationevent"
 androidx-room3-runtime = { group = "androidx.room3", name = "room3-runtime", version.ref = "room" }
 androidx-room3-compiler = { group = "androidx.room3", name = "room3-compiler", version.ref = "room" }
 kotlinx-serialization-cbor = { group = "org.jetbrains.kotlinx", name = "kotlinx-serialization-cbor", version = "ktxSerialization" }
-junit = { group = "junit", name = "junit", version.ref = "junit" }
+protobuf-kotlin = { group = "com.google.protobuf", name = "protobuf-kotlin", version.ref = "protobuf" }
-androidx-junit = { group = "androidx.test.ext", name = "junit", version.ref = "junitVersion" }
+protobuf-protoc = { group = "com.google.protobuf", name = "protoc", version.ref = "protobuf" }
-androidx-espresso-core = { group = "androidx.test.espresso", name = "espresso-core", version.ref = "espressoCore" }
+androidx-healthconnect-client = { group = "androidx.health.connect", name = "connect-client", version.ref = "healthConnect" }
-androidx-appcompat = { group = "androidx.appcompat", name = "appcompat", version.ref = "appcompat" }
+androidx-foundation-layout = { group = "androidx.compose.foundation", name = "foundation-layout", version.ref = "foundationLayout" }
-material = { group = "com.google.android.material", name = "material", version.ref = "material" }
 
 [plugins]
 android-application = { id = "com.android.application", version.ref = "agp" }
@@ -86,3 +83,4 @@ ksp = { id = "com.google.devtools.ksp", version.ref = "ksp" }
 room3 = { id = "androidx.room3", version.ref = "room" }
 hilt = { id = "com.google.dagger.hilt.android", version.ref = "hilt" }
 android-library = { id = "com.android.library", version.ref = "agp" }
+protobuf = { id = "com.google.protobuf", version.ref = "protobufPlugin" }