我用的是audiolayers，audio_service播放音频，效果很好，当我打开其他音频应用（比如Apple Music）播放音乐时，我的应用会停止播放，这还可以，但当我返回应用查询当前播放状态时，它还在播放。
这是我的代码：

Container(
    height: 60.w,
    width: 60.w,
    decoration: BoxDecoration(
        borderRadius: BorderRadius.circular(30.w),
        gradient: const LinearGradient(
                  begin: Alignment.topLeft,
                  end: Alignment.bottomRight,
                  colors: [Color(0xFFD54381), Color(0xFF7644AD)]),
        ),
        child: StreamBuilder<PlaybackState>(
           stream: customAudioHandler?.playbackState,
           builder: (context, snapshot) {
             final playing = snapshot.data?.playing ?? false;
             return GestureDetector(
                onTap: () => _playOrPause(context, playing),
                  child: Icon(
                    playing ? FontIcons.stop : FontIcons.play,
                    color: Colors.white,
                    size: 40.w,
                 ),
              );
           },
        ),
   ),

我尝试使用WidgetsBindingObserver
例如：

@override
  void didChangeAppLifecycleState(AppLifecycleState state) {
    switch (state) {
      case AppLifecycleState.inactive:
        break;
      case AppLifecycleState.paused:
        break;
      case AppLifecycleState.resumed:
        var audioHandlerState = customAudioHandler?.playbackState.value.playing;
        var audioPlayerState = audioPlayer.state;

        // print true
        debugPrint('didChangeAppLifecycleState-resumed: $audioHandlerState'); 

        // print PlayerState.playing
        debugPrint('didChangeAppLifecycleState-resumed: $audioPlayerState'); 

        break;
      case AppLifecycleState.detached:
        break;
    }
    super.didChangeAppLifecycleState(state);
  }

其输出状态为播放
任何帮助都将不胜感激。