@Override
 public boolean isPlaying() {
   if (musicService != null && musicBound) {
     return musicService.isPlaying();
   }
   return false;
 }
 @Override
 public int getCurrentPosition() {
   if (musicService != null && musicBound && musicService.isPlaying()) {
     return musicService.getSongPosition();
   } else {
     return 0;
   }
 }