Enhance playback handling during track skipping and fading on double tap BT headsets. Previously, jump to next track and pause, now, next track and play.

Author: root-intruder

lib/services/music_player_background_task.dart

@@ -774,6 +774,14 @@ class MusicPlayerBackgroundTask extends BaseAudioHandler with SeekHandler, Queue
     bool doSkip = true;
 
     try {
+      final shouldResumePlayback = _player.playing || fadeState.value.fadeDirection != FadeDirection.none;
+
+      // Some headsets emit pause before skip on double-tap. If a fade-out pause
+      // is in progress, reverse it so the next/previous command keeps playback running.
+      if (fadeState.value.fadeDirection == FadeDirection.fadeOut) {
+        await fadeInAndPlay();
+      }
+
       if (_queueCallbackPreviousTrack != null) {
         doSkip = await _queueCallbackPreviousTrack!();
       } else {
@@ -795,6 +803,10 @@ class MusicPlayerBackgroundTask extends BaseAudioHandler with SeekHandler, Queue
           await _player.seek(Duration.zero);
         }
       }
+
+      if (shouldResumePlayback && !_player.playing) {
+        await play(disableFade: true);
+      }
     } catch (e) {
       _audioServiceBackgroundTaskLogger.severe(e);
       return Future.error(e);
@@ -804,12 +816,25 @@ class MusicPlayerBackgroundTask extends BaseAudioHandler with SeekHandler, Queue
   @override
   Future<void> skipToNext() async {
     try {
+      final shouldResumePlayback = _player.playing || fadeState.value.fadeDirection != FadeDirection.none;
+
+      // Some headsets emit pause before skip on double-tap. If a fade-out pause
+      // is in progress, reverse it so the next/previous command keeps playback running.
+      if (fadeState.value.fadeDirection == FadeDirection.fadeOut) {
+        await fadeInAndPlay();
+      }
+
       if (_player.loopMode == LoopMode.one || !_player.hasNext) {
         // if the user manually skips to the next track, they probably want to actually skip to the next track
         await skipByOffset(1); //!!! don't use _player.nextIndex here, because that adjusts based on loop mode
       } else {
         await _player.seekToNext();
       }
+
+      if (shouldResumePlayback && !_player.playing) {
+        await play(disableFade: true);
+      }
+
       _audioServiceBackgroundTaskLogger.finer("_player.nextIndex: ${_player.nextIndex}");
     } catch (e) {
       _audioServiceBackgroundTaskLogger.severe(e);