feat: add new playback experience and media integration

android/app/src/main/AndroidManifest.xml

@@ -114,6 +114,23 @@
             android:exported="false"
             android:foregroundServiceType="dataSync" />
 
+        <service
+            android:name="com.ryanheise.audioservice.AudioService"
+            android:foregroundServiceType="mediaPlayback"
+            android:exported="true"
+            android:enabled="true">
+            <intent-filter>
+                <action android:name="android.media.browse.MediaBrowserService" />
+            </intent-filter>
+        </service>
+        <receiver
+            android:name="com.ryanheise.audioservice.MediaButtonReceiver"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MEDIA_BUTTON" />
+            </intent-filter>
+        </receiver>
+
         <!-- flutter_local_notifications receivers -->
         <receiver android:exported="false" android:name="com.dexterous.flutterlocalnotifications.ScheduledNotificationReceiver" />
         <receiver android:exported="false" android:name="com.dexterous.flutterlocalnotifications.ScheduledNotificationBootReceiver">
@@ -130,6 +147,10 @@
             android:name="flutterEmbedding"
             android:value="2" />
 
+        <meta-data
+            android:name="com.google.android.gms.car.application"
+            android:resource="@xml/automotive_app_desc" />
+
         <!-- FileProvider for APK installation -->
         <provider
             android:name="androidx.core.content.FileProvider"

android/app/src/main/kotlin/com/zarz/spotiflac/MainActivity.kt

@@ -1,6 +1,7 @@
 package com.zarz.spotiflac
 
 import android.app.Activity
+import android.content.Context
 import android.content.Intent
 import android.net.Uri
 import android.os.Build
@@ -17,6 +18,7 @@ import io.flutter.embedding.engine.FlutterEngine
 import io.flutter.embedding.engine.FlutterShellArgs
 import io.flutter.plugin.common.EventChannel
 import io.flutter.plugin.common.MethodChannel
+import com.ryanheise.audioservice.AudioServicePlugin
 import gobackend.Gobackend
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
@@ -36,6 +38,10 @@ import java.security.MessageDigest
 import java.util.Locale
 
 class MainActivity: FlutterFragmentActivity() {
+    override fun provideFlutterEngine(context: Context): FlutterEngine {
+        return AudioServicePlugin.getFlutterEngine(context)
+    }
+
     private val CHANNEL = "com.zarz.spotiflac/backend"
     private val DOWNLOAD_PROGRESS_STREAM_CHANNEL =
         "com.zarz.spotiflac/download_progress_stream"

android/app/src/main/res/xml/automotive_app_desc.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<automotiveApp>
+    <uses name="media" />
+</automotiveApp>