Stop music when app is closed

Question

i'm trying to create an app that play music (Radio Stream) in background (Without Service) and also allow user to set Gif as live wallpaper (using WallpaperService).

ISSUES :

My problem sometimes the streaming radio take time to play and when i set gif as wallpaper and radio still doesn't play ,When i close my app from (Recent Tasks/by swipe) . music plays although i close my app (reason is WallpaperService).

WHAT I WANT

When user closes the app from (recent tasks /by swipe) I want to stop music even though live wallpaper is working.

MainActivity :

@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        MusicButton = findViewById(R.id.toggleButton);
        mediaPlayer = new MediaPlayer();
        new PlayerTask().execute("URL");

@SuppressLint("StaticFieldLeak")
    public class PlayerTask extends AsyncTask<String, Void, Boolean> {
    @Override
    protected void onPreExecute() {
        super.onPreExecute();
        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP) {
            AudioAttributes attribs = new AudioAttributes.Builder().setUsage(AudioAttributes.USAGE_MEDIA).setContentType(AudioAttributes.CONTENT_TYPE_MUSIC).build();
            mediaPlayer.setAudioAttributes(attribs);

        } else {
            mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
        }
    }

    @Override
    protected Boolean doInBackground(String... strings) {
        try {
            mediaPlayer.setDataSource(strings[0]);
            mediaPlayer.prepare();
            prepared = true;
        } catch (IOException e) {
            e.printStackTrace();
        } catch (IllegalArgumentException e) {
            e.printStackTrace();
        } catch (IllegalStateException e) {
            e.printStackTrace();
        }
        mediaPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
            @Override
            public void onPrepared(MediaPlayer mediaPlayer) {
                mediaPlayer.start();

            }
        });
        return prepared;
    }

    @Override
    protected void onPostExecute(Boolean aBoolean) {
        super.onPostExecute(aBoolean);
        MusicButton.setVisibility(View.VISIBLE);
        MusicButton.setChecked(true);

}


@Override
protected void onDestroy() {
    super.onDestroy();
    MApplication.sBus.post(PlaybackEvent.PLAY);
    try {
        MApplication.sBus.unregister(this);
    } catch (Exception e) {
        e.printStackTrace();
    }
}
 @Subscribe
public void handlePlaybackEvent(PlaybackEvent event) {
    switch (event) {
        case PLAY:
            if (mediaPlayer.isPlaying()) {
                mediaPlayer.pause();
                MusicButton.setChecked(true);
            }
            break;
        case PAUSE:
            if (!mediaPlayer.isPlaying()) {
                mediaPlayer.start();
                MusicButton.setChecked(false);
            }
            break;
    }
}

KillNotificationService Service for cancel Notification if user close app

public class KillNotificationService extends Service {

    @Override
    public void onTaskRemoved(Intent rootIntent) {
        super.onTaskRemoved(rootIntent);
        NotificationManager nMgr = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        assert nMgr != null;
        nMgr.cancelAll();
        MApplication.sBus.post(PlaybackEvent.PLAY);
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        return super.onStartCommand(intent, flags, startId);
    }

    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }
}

Please help me i have spent 3 days to solve this problem without any result

(sorry for my bad english)

score 0 · Answer 1 · answered Aug 19 '20 at 15:28

understand the activity life cycle here, you will see that an activity have a onPause()/onStop() and many such states.

If you want to stop your music when the app is temporarily closed (worked for me): create a onPause() under your main class and pause/stop your music there.

 @Override
protected void onPause() {
    mediaPlayer.stop();
    super.onPause();
}

same goes for onStop(). Tip: make sure your media player is not null before starting :) Thanks

Stop music when app is closed

1 Answers1