add output switcher button to player screen on Android

jmshrv · Dec 11, 2024 · bfa9027 · bfa9027
1 parent 8ac5dcf
commit bfa9027
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Showing 6 changed files with 120 additions and 4 deletions.
diff --git a/android/app/build.gradle b/android/app/build.gradle
@@ -72,4 +72,5 @@ flutter {
 
 dependencies {
     implementation 'androidx.appcompat:appcompat:1.3.1'
+    implementation 'androidx.mediarouter:mediarouter:1.7.0'
 }
diff --git a/android/app/src/main/AndroidManifest.xml b/android/app/src/main/AndroidManifest.xml
@@ -22,7 +22,7 @@
     android:allowBackup="false"
     android:fullBackupContent="false"
   >
-    <activity android:name="com.ryanheise.audioservice.AudioServiceActivity" android:launchMode="singleTop" android:theme="@style/LaunchTheme" android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode" android:hardwareAccelerated="true" android:windowSoftInputMode="adjustResize" android:exported="true">
+    <activity android:name=".MainActivity" android:launchMode="singleTop" android:theme="@style/LaunchTheme" android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode" android:hardwareAccelerated="true" android:windowSoftInputMode="adjustResize" android:exported="true">
       <!-- Specifies an Android theme to apply to this Activity as soon as
                  the Android process has started. This theme is visible to the user
                  while the Flutter UI initializes. After that, this theme continues
@@ -60,6 +60,11 @@
       </intent-filter>
     </receiver>
 
+    <receiver
+        android:name="androidx.mediarouter.media.MediaTransferReceiver"
+        android:exported="true">
+    </receiver>
+
     <meta-data
       android:name="com.google.android.gms.car.application"
       android:resource="@xml/automotive_app_desc" />

diff --git a/android/app/src/main/kotlin/com/unicornsonlsd/finamp/MainActivity.kt b/android/app/src/main/kotlin/com/unicornsonlsd/finamp/MainActivity.kt
@@ -1,6 +1,54 @@
 package com.unicornsonlsd.finamp
 
+import androidx.annotation.NonNull
+import androidx.mediarouter.app.SystemOutputSwitcherDialogController
+import androidx.mediarouter.media.MediaRouter
+import com.ryanheise.audioservice.AudioServiceActivity
 import io.flutter.embedding.android.FlutterActivity
+import io.flutter.embedding.engine.FlutterEngine
+import io.flutter.plugin.common.MethodChannel
 
-class MainActivity: FlutterActivity() {
-}
+class MainActivity: AudioServiceActivity() {
+  private val CHANNEL = "com.unicornsonlsd.finamp/output_switcher"
+
+  override fun configureFlutterEngine(@NonNull flutterEngine: FlutterEngine) {
+    super.configureFlutterEngine(flutterEngine)
+    MethodChannel(flutterEngine.dartExecutor.binaryMessenger, CHANNEL).setMethodCallHandler { call, result ->
+      println("calling method: '${call.method}'")
+      if (call.method == "showOutputSwitcherDialog") {
+        showOutputSwitcherDialog()
+        result.success(null)
+      } else if (call.method == "getRoutes") {
+        val router = MediaRouter.getInstance(this)
+        val routes = router.routes
+        routes.forEach { route ->
+          println("Route: ${route.name}, connection state: ${route.connectionState}, system route: ${route.isSystemRoute}, default: ${route.isDefault}, device speaker: ${route.isDeviceSpeaker}, bluetooth: ${route.isBluetooth}, volume: ${route.volume}, provider: ${route.provider.packageName}")
+        }
+      } else if (call.method == "setOutputToDeviceSpeaker") {
+        val router = MediaRouter.getInstance(this)
+        val routes = router.getRoutes()
+        routes.forEach { route ->
+          println("Route: ${route.name}, connection state: ${route.connectionState}, system route: ${route.isSystemRoute}, default: ${route.isDefault}, device speaker: ${route.isDeviceSpeaker}, bluetooth: ${route.isBluetooth}, volume: ${route.volume}, provider: ${route.provider.packageName}")
+        }
+        val deviceSpeakerRoute = routes.first { route -> route.isDeviceSpeaker }
+        router.selectRoute(deviceSpeakerRoute)
+      } else if (call.method == "setOutputToBluetoothDevice") {
+        val router = MediaRouter.getInstance(this)
+        val routes = router.getRoutes()
+        routes.forEach { route ->
+          println("Route: ${route.name}, connection state: ${route.connectionState}, system route: ${route.isSystemRoute}, default: ${route.isDefault}, device speaker: ${route.isDeviceSpeaker}, bluetooth: ${route.isBluetooth}, volume: ${route.volume}, provider: ${route.provider.packageName}")
+        }
+        val bluetoothRoute = routes.first { route -> route.isBluetooth }
+        router.selectRoute(bluetoothRoute)
+      }
+      else {
+        println("Method not found: '${call.method}'")
+        result.notImplemented()
+      }
+    }
+  }
+
+  private fun showOutputSwitcherDialog() {
+    SystemOutputSwitcherDialogController.showDialog(this)
+  }
+}
diff --git a/lib/main.dart b/lib/main.dart
@@ -1,5 +1,6 @@
 import 'dart:async';
 import 'dart:io';
+import 'dart:ui';
 
 import 'package:audio_service/audio_service.dart';
 import 'package:audio_session/audio_session.dart';
@@ -110,6 +111,8 @@ void main() async {
       flutterLogger.severe(error, error, details.stack);
     };
 
+    DartPluginRegistrant.ensureInitialized();
+
     await findSystemLocale();
     await initializeDateFormatting();
 
@@ -443,7 +446,7 @@ class _FinampState extends ConsumerState<Finamp> with WindowListener {
   }
 
   @override
-  Widget build(BuildContext context) {   
+  Widget build(BuildContext context) {
     return ProviderScope(
       child: GestureDetector(
         onTap: () {

diff --git a/lib/screens/player_screen.dart b/lib/screens/player_screen.dart
@@ -12,6 +12,7 @@ import 'package:finamp/screens/lyrics_screen.dart';
 import 'package:finamp/services/current_track_metadata_provider.dart';
 import 'package:finamp/services/feedback_helper.dart';
 import 'package:finamp/services/finamp_settings_helper.dart';
+import 'package:finamp/services/music_player_background_task.dart';
 import 'package:finamp/services/queue_service.dart';
 import 'package:finamp/services/theme_provider.dart';
 import 'package:flutter/material.dart';
@@ -250,6 +251,18 @@ class _PlayerScreenContent extends ConsumerWidget {
                   ),
                 ),
               ),
+            if (Platform.isAndroid)
+              IconButton(
+                icon: Icon(TablerIcons.cast),
+                onPressed: () {
+                  final audioHandler =
+                      GetIt.instance<MusicPlayerBackgroundTask>();
+                  audioHandler.getRoutes();
+                  // audioHandler.setOutputToDeviceSpeaker();
+                  // audioHandler.setOutputToBluetoothDevice();
+                  audioHandler.showOutputSwitcherDialog();
+                },
+              ),
           ],
         ),
         // Required for sleep timer input

diff --git a/lib/services/music_player_background_task.dart b/lib/services/music_player_background_task.dart
@@ -9,6 +9,7 @@ import 'package:finamp/models/finamp_models.dart';
 import 'package:finamp/models/jellyfin_models.dart' as jellyfin_models;
 import 'package:finamp/services/favorite_provider.dart';
 import 'package:finamp/services/jellyfin_api_helper.dart';
+import 'package:flutter/services.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:get_it/get_it.dart';
 import 'package:flutter_gen/gen_l10n/app_localizations.dart';
@@ -60,6 +61,51 @@ class MusicPlayerBackgroundTask extends BaseAudioHandler {
   ValueListenable<Timer?> get sleepTimer => _sleepTimer;
 
   double iosBaseVolumeGainFactor = 1.0;
+
+  final outputSwitcherChannel =
+      MethodChannel('com.unicornsonlsd.finamp/output_switcher');
+
+  Future<void> showOutputSwitcherDialog() async {
+    try {
+      print("Showing output switcher dialog");
+      await outputSwitcherChannel.invokeMethod('showOutputSwitcherDialog');
+      print("Output switcher dialog shown");
+    } on PlatformException catch (e) {
+      print("Failed to show output switcher dialog: ${e.message}");
+    } catch (e) {
+      print("Failed to show output switcher dialog: $e");
+    }
+  }
+
+  Future<void> getRoutes() async {
+    try {
+      await outputSwitcherChannel.invokeMethod('getRoutes');
+    } on PlatformException catch (e) {
+      print("Failed to get routes: ${e.message}");
+    } catch (e) {
+      print("Failed to get routes: $e");
+    }
+  }
+
+  Future<void> setOutputToDeviceSpeaker() async {
+    try {
+      await outputSwitcherChannel.invokeMethod('setOutputToDeviceSpeaker');
+    } on PlatformException catch (e) {
+      print("Failed to switch output: ${e.message}");
+    } catch (e) {
+      print("Failed to switch output: $e");
+    }
+  }
+
+  Future<void> setOutputToBluetoothDevice() async {
+    try {
+      await outputSwitcherChannel.invokeMethod('setOutputToBluetoothDevice');
+    } on PlatformException catch (e) {
+      print("Failed to switch output: ${e.message}");
+    } catch (e) {
+      print("Failed to switch output: $e");
+    }
+  }
 
   MusicPlayerBackgroundTask() {
     _audioServiceBackgroundTaskLogger.info("Starting audio service");