fix(player): suppress volume indicator during audio duck events (#1899)

When using AAudio output on Android, the system notifies the app to
manually handle ducking instead of silently lowering volume itself.
This caused the in-app volume indicator to pop up on every notification.

Pass showIndicator: false for duck begin/end calls so volume is adjusted
silently, consistent with other audio output modes.

lib/plugin/pl_player/controller.dart

@@ -507,8 +507,11 @@ class PlPlayerController with BlockConfigMixin {
     return _instance?.volume.value;
   }
 
-  static Future<void>? setVolumeIfExists(double volumeNew) {
+  static Future<void>? setVolumeIfExists(
-    return _instance?.setVolume(volumeNew);
+    double volumeNew, {
+    bool showIndicator = true,
+  }) {
+    return _instance?.setVolume(volumeNew, showIndicator: showIndicator);
   }
 
   Box video = GStorage.video;
@@ -1255,7 +1258,7 @@ class PlPlayerController with BlockConfigMixin {
   bool volumeInterceptEventStream = false;
 
   static final double maxVolume = PlatformUtils.isDesktop ? 2.0 : 1.0;
-  Future<void> setVolume(double volume) async {
+  Future<void> setVolume(double volume, {bool showIndicator = true}) async {
     if (this.volume.value != volume) {
       this.volume.value = volume;
       try {
@@ -1269,7 +1272,9 @@ class PlPlayerController with BlockConfigMixin {
         if (kDebugMode) debugPrint(err.toString());
       }
     }
-    volumeIndicator.value = true;
+    if (showIndicator) {
+      volumeIndicator.value = true;
+    }
     volumeInterceptEventStream = true;
     volumeTimer?.cancel();
     volumeTimer = Timer(const Duration(milliseconds: 200), () {

lib/services/audio_session.dart

@@ -28,6 +28,7 @@ class AudioSessionHandler {
           case AudioInterruptionType.duck:
             PlPlayerController.setVolumeIfExists(
               (PlPlayerController.getVolumeIfExists() ?? 0) * 0.5,
+              showIndicator: false,
             );
             // player.setVolume(player.volume.value * 0.5);
             break;
@@ -47,6 +48,7 @@ class AudioSessionHandler {
           case AudioInterruptionType.duck:
             PlPlayerController.setVolumeIfExists(
               (PlPlayerController.getVolumeIfExists() ?? 0) * 2,
+              showIndicator: false,
             );
             // player.setVolume(player.volume.value * 2);
             break;