android播放提示音

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 OnLoadCompleteListener() {
				  
		public void onLoadComplete(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);
		}
	});
}