Init

app/.gitignore

@@ -0,0 +1 @@
+/build

app/build.gradle

@@ -0,0 +1,71 @@
+plugins {
+    id 'com.android.application'
+    id 'org.jetbrains.kotlin.android'
+    id 'kotlin-kapt'
+    id 'com.google.dagger.hilt.android'
+}
+
+android {
+    namespace 'com.dmitryzenevich.remoteaudiocontrol'
+    compileSdk 33
+
+    defaultConfig {
+        applicationId "com.dmitryzenevich.remoteaudiocontrol"
+        minSdk 24
+        targetSdk 33
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+        vectorDrawables {
+            useSupportLibrary true
+        }
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
+    buildFeatures {
+        compose true
+    }
+    composeOptions {
+        kotlinCompilerExtensionVersion '1.1.1'
+    }
+    packagingOptions {
+        resources {
+            excludes += '/META-INF/{AL2.0,LGPL2.1}'
+        }
+    }
+}
+
+dependencies {
+
+    implementation 'androidx.core:core-ktx:1.9.0'
+    implementation 'androidx.lifecycle:lifecycle-runtime-ktx:2.5.1'
+    implementation 'androidx.activity:activity-compose:1.6.1'
+    implementation "androidx.compose.ui:ui:$compose_version"
+    implementation "androidx.compose.ui:ui-tooling-preview:$compose_version"
+    implementation 'androidx.compose.material3:material3:1.1.0-alpha02'
+    testImplementation 'junit:junit:4.13.2'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.4'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.0'
+    androidTestImplementation "androidx.compose.ui:ui-test-junit4:$compose_version"
+    debugImplementation "androidx.compose.ui:ui-tooling:$compose_version"
+    debugImplementation "androidx.compose.ui:ui-test-manifest:$compose_version"
+
+    implementation "com.google.dagger:hilt-android:2.44"
+    kapt "com.google.dagger:hilt-compiler:2.44"
+
+    implementation "com.squareup.moshi:moshi:1.14.0"
+    kapt "com.squareup.moshi:moshi-kotlin-codegen:1.14.0"
+}

app/proguard-rules.pro

@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

app/src/androidTest/java/com/dmitryzenevich/remoteaudiocontrol/ExampleInstrumentedTest.kt

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+package com.dmitryzenevich.remoteaudiocontrol
+
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.test.ext.junit.runners.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.*
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+        assertEquals("com.dmitryzenevich.remoteaudiocontrol", appContext.packageName)
+    }
+}

app/src/main/AndroidManifest.xml

@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <uses-permission android:name="android.permission.INTERNET"/>
+    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
+
+    <application
+        android:name=".AudioControlApp"
+        android:allowBackup="true"
+        android:dataExtractionRules="@xml/data_extraction_rules"
+        android:fullBackupContent="@xml/backup_rules"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.RemoteAudioControl"
+        tools:targetApi="31">
+        <activity
+            android:name=".presentation.MainActivity"
+            android:exported="true"
+            android:theme="@style/Theme.RemoteAudioControl">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+
+            <meta-data
+                android:name="android.app.lib_name"
+                android:value="" />
+        </activity>
+    </application>
+
+</manifest>

app/src/main/java/com/dmitryzenevich/remoteaudiocontrol/AudioControlApp.kt

@@ -0,0 +1,7 @@
+package com.dmitryzenevich.remoteaudiocontrol
+
+import android.app.Application
+import dagger.hilt.android.HiltAndroidApp
+
+@HiltAndroidApp
+class AudioControlApp : Application()

app/src/main/java/com/dmitryzenevich/remoteaudiocontrol/data/SocketRepositoryImpl.kt

@@ -0,0 +1,67 @@
+package com.dmitryzenevich.remoteaudiocontrol.data
+
+import android.util.Log
+import com.dmitryzenevich.remoteaudiocontrol.data.model.*
+import com.dmitryzenevich.remoteaudiocontrol.domain.repository.SocketRepository
+import com.squareup.moshi.Moshi
+import com.squareup.moshi.adapter
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.*
+import kotlinx.coroutines.withContext
+import java.io.OutputStreamWriter
+import javax.inject.Inject
+
+class SocketRepositoryImpl @Inject constructor(
+    private val socketSource: SocketSource
+) : SocketRepository {
+
+    private val moshi = Moshi.Builder().build()
+
+    override suspend fun openSocketConnection(address: String, port: Int): Boolean = withContext(Dispatchers.IO) {
+        try {
+            socketSource.openSocketConnection(address, port)
+            true
+        } catch (e: Exception) {
+            Log.e( javaClass.simpleName, "Socket connection error; address: $address, port: $port", e)
+            false
+        }
+    }
+
+    override suspend fun sendCommand(command: Command): Unit = withContext(Dispatchers.IO) {
+        val json = when(command) {
+            is VolumeIncrementCommand -> moshi.adapter(VolumeIncrementCommand::class.java).toJson(command)
+            is MuteToggleCommand -> moshi.adapter(MuteToggleCommand::class.java).toJson(command)
+            is SetVolumeCommand -> moshi.adapter(SetVolumeCommand::class.java).toJson(command)
+        }.plus("\n")
+        Log.i(javaClass.simpleName, "send: $json")
+
+        try {
+            socketSource.writer.send(json)
+        } catch (e: Exception) {
+            Log.e(javaClass.simpleName, "Can't send command: $command", e)
+        }
+    }
+
+    override fun bindSocketInput(): Flow<Event?> {
+        return socketSource.reader.lineSequence().asFlow().map {
+            Log.i(javaClass.simpleName, "json: $it")
+            it.toEvent(moshi)
+        }
+    }
+}
+
+fun OutputStreamWriter.send(str: String) {
+    write(str)
+    flush()
+}
+
+fun String.toEvent(moshi: Moshi): Event? {
+    return when {
+        contains(EventType.NEW_SESSION.event) -> moshi.adapter(NewSessionEvent::class.java).fromJson(this)
+        contains(EventType.SET_NAME.event) -> moshi.adapter(SetNameEvent::class.java).fromJson(this)
+        contains(EventType.MUTE_STATE_CHANGED.event) -> moshi.adapter(MuteStateChangedEvent::class.java).fromJson(this)
+        contains(EventType.STATE_CHANGED.event) -> moshi.adapter(StateChangedEvent::class.java).fromJson(this)
+        contains(EventType.VOLUME_CHANGED.event) -> moshi.adapter(VolumeChangedEvent::class.java).fromJson(this)
+        else -> UnknownEvent
+    }
+}

app/src/main/java/com/dmitryzenevich/remoteaudiocontrol/data/SocketSource.kt

@@ -0,0 +1,29 @@
+package com.dmitryzenevich.remoteaudiocontrol.data
+
+import java.io.Closeable
+import java.net.Socket
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class SocketSource @Inject constructor() : Closeable {
+
+    private var socket: Socket? = null
+
+    val writer
+        get() = socket().getOutputStream().writer()
+
+    val reader
+        get() = socket().getInputStream().bufferedReader()
+
+    private fun socket(): Socket = socket ?: throw IllegalStateException("Socket is not created")
+
+    fun openSocketConnection(address: String, port: Int) {
+        socket = Socket(address, port)
+    }
+
+
+    override fun close() {
+        socket?.close()
+    }
+}

app/src/main/java/com/dmitryzenevich/remoteaudiocontrol/data/model/Commands.kt

@@ -0,0 +1,25 @@
+package com.dmitryzenevich.remoteaudiocontrol.data.model
+
+import com.squareup.moshi.JsonClass
+
+sealed interface Command
+
+@JsonClass(generateAdapter = true)
+data class VolumeIncrementCommand(
+    val PID: Long,
+    val increment: Int,
+    val event: String = "VolumeIncrement"
+) : Command
+
+@JsonClass(generateAdapter = true)
+data class MuteToggleCommand(
+    val PID: Long,
+    val event: String = "MuteToggle"
+) : Command
+
+@JsonClass(generateAdapter = true)
+data class SetVolumeCommand(
+    val PID: Long,
+    val volume: Int,
+    val event: String = "SetVolume"
+) : Command

app/src/main/java/com/dmitryzenevich/remoteaudiocontrol/data/model/Events.kt

@@ -0,0 +1,48 @@
+package com.dmitryzenevich.remoteaudiocontrol.data.model
+
+import com.squareup.moshi.*
+
+sealed interface Event
+
+@JsonClass(generateAdapter = true)
+data class NewSessionEvent(
+    val PID: Long
+) : Event
+
+@JsonClass(generateAdapter = true)
+data class StateChangedEvent(
+    val PID: Long,
+    @field:Json(name = "is_active")
+    val isActive: Boolean
+) : Event
+
+@JsonClass(generateAdapter = true)
+data class VolumeChangedEvent(
+    @field:Json(name = "new_volume")
+    val volume: Int,
+    val PID: Long
+) : Event
+
+@JsonClass(generateAdapter = true)
+data class MuteStateChangedEvent(
+    @field:Json(name = "is_muted")
+    val isMuted: Boolean,
+    val PID: Long
+) : Event
+
+@JsonClass(generateAdapter = true)
+data class SetNameEvent(
+    val name: String,
+    val PID: Long
+) : Event
+
+object UnknownEvent : Event
+
+enum class EventType(val event: String) {
+    NEW_SESSION("NewSession"),
+    STATE_CHANGED("StateChanged"),
+    VOLUME_CHANGED("VolumeChanged"),
+    MUTE_STATE_CHANGED("MuteStateChanged"),
+    SET_NAME("SetName"),
+    SET_VOLUME("SetVolume");
+}

app/src/main/java/com/dmitryzenevich/remoteaudiocontrol/di/AppModule.kt

@@ -0,0 +1,13 @@
+package com.dmitryzenevich.remoteaudiocontrol.di
+
+import dagger.Module
+import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.components.SingletonComponent
+import javax.inject.Singleton
+
+@Module
+@InstallIn(SingletonComponent::class)
+abstract class AppModule {
+
+}

app/src/main/java/com/dmitryzenevich/remoteaudiocontrol/domain/repository/SocketRepository.kt

@@ -0,0 +1,15 @@
+package com.dmitryzenevich.remoteaudiocontrol.domain.repository
+
+import com.dmitryzenevich.remoteaudiocontrol.data.model.Command
+import com.dmitryzenevich.remoteaudiocontrol.data.model.Event
+import kotlinx.coroutines.flow.Flow
+
+
+interface SocketRepository {
+
+    suspend fun openSocketConnection(address: String, port: Int): Boolean
+
+    suspend fun sendCommand(command: Command)
+
+    fun bindSocketInput(): Flow<Event?>
+}

app/src/main/java/com/dmitryzenevich/remoteaudiocontrol/presentation/Extentions.kt

@@ -0,0 +1,5 @@
+package com.dmitryzenevich.remoteaudiocontrol.presentation
+
+import kotlin.math.roundToInt
+
+fun Float.classicRound(): Float = times(100).roundToInt().div(100f)

app/src/main/java/com/dmitryzenevich/remoteaudiocontrol/presentation/MainActivity.kt

@@ -0,0 +1,105 @@
+package com.dmitryzenevich.remoteaudiocontrol.presentation
+
+import android.annotation.SuppressLint
+import android.os.Bundle
+import android.util.Log
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.activity.viewModels
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.lazy.LazyRow
+import androidx.compose.foundation.lazy.items
+import androidx.compose.material3.Slider
+import androidx.compose.material3.Text
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.TransformOrigin
+import androidx.compose.ui.graphics.graphicsLayer
+import androidx.compose.ui.layout.layout
+import androidx.compose.ui.unit.Constraints
+import androidx.compose.ui.unit.dp
+import androidx.lifecycle.lifecycleScope
+import com.dmitryzenevich.remoteaudiocontrol.presentation.theme.RemoteAudioControlTheme
+import dagger.hilt.android.AndroidEntryPoint
+import kotlinx.coroutines.flow.launchIn
+import kotlinx.coroutines.flow.onEach
+import kotlin.math.roundToInt
+
+@AndroidEntryPoint
+class MainActivity : ComponentActivity() {
+
+    private val viewModel by viewModels<MainViewModel>()
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContent {
+            RemoteAudioControlTheme {
+                val uiState by viewModel.uiState.collectAsState()
+                LazyRow {
+                    items(uiState.volumes) { itemState ->
+                        VolumeItem(itemState, viewModel)
+                    }
+                }
+            }
+        }
+    }
+}
+
+@Composable
+fun VolumeItem(volumeItemState: VolumeItemState, viewModel: MainViewModel) {
+    var volume by remember { mutableStateOf(volumeItemState.volume) }
+    volume = volumeItemState.volume
+    val onValueChanged = { newValue: Float ->
+        Log.i("debug", "new value: $newValue")
+        viewModel.onVolumeChanged(volumeItemState,  newValue.toInt())
+        volume = newValue.toInt()
+    }
+
+    Column(
+        modifier = Modifier
+            .padding(8.dp)
+            .wrapContentSize(),
+        horizontalAlignment = Alignment.CenterHorizontally
+    ) {
+        Text(
+            text = "${volumeItemState.name}\nVolume: ${volumeItemState.volume}"
+        )
+        VerticalSlider(
+            value = /*volumeItemState.volume.toFloat()*/volume.toFloat(),
+            onValueChanged = onValueChanged
+        )
+    }
+}
+
+@Composable
+fun VerticalSlider(
+    value: Float,
+    onValueChanged: (Float) -> Unit
+) {
+    Slider(
+        value = value,
+        valueRange = 0f..100f,
+        steps = 99,
+        onValueChange = onValueChanged,
+        modifier = Modifier
+            .graphicsLayer {
+                rotationZ = 270f
+                transformOrigin = TransformOrigin(0f, 0f)
+            }
+            .layout { measurable, constraints ->
+                val placeable = measurable.measure(
+                    Constraints(
+                        minWidth = constraints.minHeight,
+                        maxWidth = constraints.maxHeight,
+                        minHeight = constraints.minWidth,
+                        maxHeight = constraints.maxHeight,
+                    )
+                )
+                layout(placeable.height, placeable.width) {
+                    placeable.place(-placeable.width, 0)
+                }
+            }
+            .padding(horizontal = 24.dp)
+    )
+}

app/src/main/java/com/dmitryzenevich/remoteaudiocontrol/presentation/MainViewModel.kt

@@ -0,0 +1,143 @@
+package com.dmitryzenevich.remoteaudiocontrol.presentation
+
+import android.util.Log
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.dmitryzenevich.remoteaudiocontrol.data.SocketRepositoryImpl
+import com.dmitryzenevich.remoteaudiocontrol.data.model.*
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.*
+import kotlinx.coroutines.flow.*
+import javax.inject.Inject
+import kotlin.math.absoluteValue
+
+@HiltViewModel
+class MainViewModel @Inject constructor(
+    private val socketRepositoryImpl: SocketRepositoryImpl
+) : ViewModel() {
+
+    private val _uiState = MutableStateFlow(MainScreenUiState())
+    val uiState = _uiState.asStateFlow()
+
+    private var commandJob: Job? = null
+
+    init {
+        viewModelScope.launch {
+            val isReady = socketRepositoryImpl.openSocketConnection("10.0.2.2", 54683)
+            if (isReady) {
+                socketRepositoryImpl.bindSocketInput()
+                    .filterNotNull()
+                    .onEach {
+                        Log.i(javaClass.simpleName, "received: $it")
+                        // TODO: test it
+                        withContext(Dispatchers.Main) { proceedEvent(it) }
+                    }
+                    .catch { Log.e(javaClass.simpleName, "Fetch event error", it) }
+                    .launchIn(CoroutineScope(Dispatchers.IO))
+            }
+        }
+    }
+
+    private fun proceedEvent(event: Event) {
+        val volumes = _uiState.value.volumes.toMutableList()
+
+        when(event) {
+            is NewSessionEvent -> {
+//                if (_uiState.value.volumes.find { it.pid == event.PID } == null) {
+//                    _uiState.value = MainScreenUiState(volumes = _uiState.value.volumes + event.toVolumeItemState())
+//                }
+            }
+            is MuteStateChangedEvent -> {
+                volumes.find { event.PID == it.pid }?.let { item ->
+                    val newItem = item.copy(isMuted = event.isMuted)
+                    volumes.set(
+                        index = volumes.indexOfFirst { it.pid == newItem.pid },
+                        element = newItem
+                    )
+                }
+                _uiState.value = _uiState.value.copy(volumes = volumes)
+            }
+            is SetNameEvent -> {
+                volumes.find { event.PID == it.pid }?.let { item ->
+                    val newItem = item.copy(name = event.name)
+                    volumes.set(
+                        index = volumes.indexOfFirst { it.pid == newItem.pid },
+                        element = newItem
+                    )
+                }
+                _uiState.value = _uiState.value.copy(volumes = volumes)
+            }
+            is StateChangedEvent -> {
+                volumes.find { event.PID == it.pid }?.let { item ->
+                    val newItem = item.copy(isActive = event.isActive)
+                    volumes.set(
+                        index = volumes.indexOfFirst { it.pid == newItem.pid },
+                        element = newItem
+                    )
+                }
+                _uiState.value = _uiState.value.copy(volumes = volumes)
+            }
+            is VolumeChangedEvent -> {
+                addIfNotExist(event)
+                val v = _uiState.value.volumes.toMutableList()
+
+                v.find { event.PID == it.pid }?.let { item ->
+                    val newItem = item.copy(volume = event.volume)
+                    v.set(
+                        index = v.indexOfFirst { it.pid == newItem.pid },
+                        element = newItem
+                    )
+                }
+                _uiState.value = _uiState.value.copy(volumes = v)
+            }
+            UnknownEvent -> _uiState.value = _uiState.value.copy(isError = true)
+        }
+    }
+
+    fun onVolumeChanged(volumeItemState: VolumeItemState, newVolume: Int) {
+        Log.i(javaClass.simpleName, "old volume: ${volumeItemState.volume}, newVolume: $newVolume")
+        val increment = newVolume.minus(volumeItemState.volume)
+        Log.i(javaClass.simpleName, "increment: $increment")
+
+//        val volumes = _uiState.value.volumes.toMutableList()
+//        volumes.find { volumeItemState.pid == it.pid }?.let { item ->
+//            val newItem = item.copy(volume = newVolume)
+//            volumes.set(
+//                index = volumes.indexOfFirst { it.pid == newItem.pid },
+//                element = newItem
+//            )
+//        }
+//        _uiState.value = _uiState.value.copy(volumes = volumes)
+
+        sendCommand(SetVolumeCommand(volumeItemState.pid, newVolume))
+    }
+
+    private fun sendCommand(command: Command) {
+        commandJob?.cancel()
+        commandJob = viewModelScope.launch { socketRepositoryImpl.sendCommand(command) }
+    }
+
+    private fun addIfNotExist(event: VolumeChangedEvent) {
+        if (_uiState.value.volumes.find { it.pid == event.PID } == null) {
+            _uiState.value = MainScreenUiState(volumes = _uiState.value.volumes + event.toVolumeItemState())
+        }
+    }
+
+}
+
+data class MainScreenUiState(
+    val volumes: List<VolumeItemState> = emptyList(),
+    val isError: Boolean = false
+)
+
+data class VolumeItemState(
+    val pid: Long,
+    val name: String = "",
+    val volume: Int = 0,
+    val isMuted: Boolean = false,
+    val isActive: Boolean = false
+)
+
+fun NewSessionEvent.toVolumeItemState() = VolumeItemState(pid = PID)
+
+fun VolumeChangedEvent.toVolumeItemState() = VolumeItemState(pid = PID, volume = volume)

app/src/main/java/com/dmitryzenevich/remoteaudiocontrol/presentation/theme/Color.kt

@@ -0,0 +1,11 @@
+package com.dmitryzenevich.remoteaudiocontrol.presentation.theme
+
+import androidx.compose.ui.graphics.Color
+
+val Purple80 = Color(0xFFD0BCFF)
+val PurpleGrey80 = Color(0xFFCCC2DC)
+val Pink80 = Color(0xFFEFB8C8)
+
+val Purple40 = Color(0xFF6650a4)
+val PurpleGrey40 = Color(0xFF625b71)
+val Pink40 = Color(0xFF7D5260)

app/src/main/java/com/dmitryzenevich/remoteaudiocontrol/presentation/theme/Theme.kt

@@ -0,0 +1,68 @@
+package com.dmitryzenevich.remoteaudiocontrol.presentation.theme
+
+import android.app.Activity
+import android.os.Build
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.darkColorScheme
+import androidx.compose.material3.dynamicDarkColorScheme
+import androidx.compose.material3.dynamicLightColorScheme
+import androidx.compose.material3.lightColorScheme
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.SideEffect
+import androidx.compose.ui.graphics.toArgb
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.platform.LocalView
+import androidx.core.view.ViewCompat
+
+private val DarkColorScheme = darkColorScheme(
+    primary = Purple80,
+    secondary = PurpleGrey80,
+    tertiary = Pink80
+)
+
+private val LightColorScheme = lightColorScheme(
+    primary = Purple40,
+    secondary = PurpleGrey40,
+    tertiary = Pink40
+
+    /* Other default colors to override
+    background = Color(0xFFFFFBFE),
+    surface = Color(0xFFFFFBFE),
+    onPrimary = Color.White,
+    onSecondary = Color.White,
+    onTertiary = Color.White,
+    onBackground = Color(0xFF1C1B1F),
+    onSurface = Color(0xFF1C1B1F),
+    */
+)
+
+@Composable
+fun RemoteAudioControlTheme(
+    darkTheme: Boolean = isSystemInDarkTheme(),
+    // Dynamic color is available on Android 12+
+    dynamicColor: Boolean = true,
+    content: @Composable () -> Unit
+) {
+    val colorScheme = when {
+        dynamicColor && Build.VERSION.SDK_INT >= Build.VERSION_CODES.S -> {
+            val context = LocalContext.current
+            if (darkTheme) dynamicDarkColorScheme(context) else dynamicLightColorScheme(context)
+        }
+        darkTheme -> DarkColorScheme
+        else -> LightColorScheme
+    }
+    val view = LocalView.current
+    if (!view.isInEditMode) {
+        SideEffect {
+            (view.context as Activity).window.statusBarColor = colorScheme.primary.toArgb()
+            ViewCompat.getWindowInsetsController(view)?.isAppearanceLightStatusBars = darkTheme
+        }
+    }
+
+    MaterialTheme(
+        colorScheme = colorScheme,
+        typography = Typography,
+        content = content
+    )
+}

app/src/main/java/com/dmitryzenevich/remoteaudiocontrol/presentation/theme/Type.kt

@@ -0,0 +1,34 @@
+package com.dmitryzenevich.remoteaudiocontrol.presentation.theme
+
+import androidx.compose.material3.Typography
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.sp
+
+// Set of Material typography styles to start with
+val Typography = Typography(
+    bodyLarge = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Normal,
+        fontSize = 16.sp,
+        lineHeight = 24.sp,
+        letterSpacing = 0.5.sp
+    )
+    /* Other default text styles to override
+    titleLarge = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Normal,
+        fontSize = 22.sp,
+        lineHeight = 28.sp,
+        letterSpacing = 0.sp
+    ),
+    labelSmall = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Medium,
+        fontSize = 11.sp,
+        lineHeight = 16.sp,
+        letterSpacing = 0.5.sp
+    )
+    */
+)

app/src/main/res/drawable-v24/ic_launcher_foreground.xml

@@ -0,0 +1,30 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="85.84757"
+                android:endY="92.4963"
+                android:startX="42.9492"
+                android:startY="49.59793"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000" />
+</vector>

app/src/main/res/drawable/ic_launcher_background.xml

@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:fillColor="#3DDC84"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+</vector>

app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

app/src/main/res/values/colors.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="purple_200">#FFBB86FC</color>
+    <color name="purple_500">#FF6200EE</color>
+    <color name="purple_700">#FF3700B3</color>
+    <color name="teal_200">#FF03DAC5</color>
+    <color name="teal_700">#FF018786</color>
+    <color name="black">#FF000000</color>
+    <color name="white">#FFFFFFFF</color>
+</resources>

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

@@ -0,0 +1,3 @@
+<resources>
+    <string name="app_name">Remote Audio Control</string>
+</resources>

app/src/main/res/values/themes.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <style name="Theme.RemoteAudioControl" parent="android:Theme.Material.Light.NoActionBar" />
+</resources>

app/src/main/res/xml/backup_rules.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+   Sample backup rules file; uncomment and customize as necessary.
+   See https://developer.android.com/guide/topics/data/autobackup
+   for details.
+   Note: This file is ignored for devices older that API 31
+   See https://developer.android.com/about/versions/12/backup-restore
+-->
+<full-backup-content>
+    <!--
+   <include domain="sharedpref" path="."/>
+   <exclude domain="sharedpref" path="device.xml"/>
+-->
+</full-backup-content>

app/src/main/res/xml/data_extraction_rules.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+   Sample data extraction rules file; uncomment and customize as necessary.
+   See https://developer.android.com/about/versions/12/backup-restore#xml-changes
+   for details.
+-->
+<data-extraction-rules>
+    <cloud-backup>
+        <!-- TODO: Use <include> and <exclude> to control what is backed up.
+        <include .../>
+        <exclude .../>
+        -->
+    </cloud-backup>
+    <!--
+    <device-transfer>
+        <include .../>
+        <exclude .../>
+    </device-transfer>
+    -->
+</data-extraction-rules>

app/src/test/java/com/dmitryzenevich/remoteaudiocontrol/ExampleUnitTest.kt

@@ -0,0 +1,17 @@
+package com.dmitryzenevich.remoteaudiocontrol
+
+import org.junit.Test
+
+import org.junit.Assert.*
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+class ExampleUnitTest {
+    @Test
+    fun addition_isCorrect() {
+        assertEquals(4, 2 + 2)
+    }
+}