仅播放通知默认声音(Android)

我怎样才能播放通知声音(不发射状态栏通知)? 我想要通知默认的声音,并发挥它作为通知声音。 是否有可能使用MediaPlayer来实现它?

Uri defaultRingtoneUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION); MediaPlayer mediaPlayer = new MediaPlayer(); try { mediaPlayer.setDataSource(context, defaultRingtoneUri); mediaPlayer.setAudioStreamType(AudioManager.STREAM_NOTIFICATION); mediaPlayer.prepare(); mediaPlayer.setOnCompletionListener(new OnCompletionListener() { @Override public void onCompletion(MediaPlayer mp) { mp.release(); } }); mediaPlayer.start(); } catch (IllegalArgumentException e) { e.printStackTrace(); } catch (SecurityException e) { e.printStackTrace(); } catch (IllegalStateException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } 
 Uri notification = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION); Ringtone r = RingtoneManager.getRingtone(context.getApplicationContext(), notification); r.play();