private void playSound(){ 	final MediaPlayer mediaPlayer = MediaPlayer.create(activity, R.raw.bubble);  	mediaPlayer.start(); 	mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener(){//播出完毕事件  		@Override public void onCompletion(MediaPlayer arg0) {  			mediaPlayer.release();  		}  	});  }

private void playSounds(){	//指定声音池的最大音频流数目为10，声音品质为5  	SoundPool pool = new SoundPool(10, AudioManager.STREAM_SYSTEM, 5);  	//载入音频流，返回在池中的id  	final int sourceid = pool.load(activity, R.raw.bubble, 0);  	pool.setOnLoadCompleteListener(new onl oadCompleteListener() {				  		public void onl oadComplete(SoundPool soundPool, int sampleId, int status) {			//播放音频，第二个参数为左声道音量;第三个参数为右声道音量;			//第四个参数为优先级；第五个参数为循环次数，0不循环，-1循环;			//第六个参数为速率，速率    最低0.5最高为2，1代表正常速度  			soundPool.play(sourceid, 2, 2, 0, 0, 1);		}	});}