Android音频不能播放问题

 public boolean playmusic(int listPosition) {

		//playBtn.setBackgroundResource(R.drawable.play_selector);

		Mp3Info mp3Info = mp3Infos.get(listPosition);

		//musicTitle.setText(mp3Info.getTitle());

		/*Intent intent = new Intent(this.getActivity(),PlayerService.class);

		intent.setAction("com.wyj.media.MUSIC_SERVICE");

		intent.putExtra("listPosition",listPosition);

		intent.putExtra("url", mp3Info.getUrl());

		intent.putExtra("MSG", AppConstant.PlayerMsg.PLAY_MSG);

		this.getActivity().startService(intent);*/

		path=mp3Info.getUrl();

		try {

			//initLrc();

			mediaPlayer.reset();// 把各项参数恢复到初始状态

			mediaPlayer.setDataSource(path);

			mediaPlayer.prepare(); // 进行缓冲

			mediaPlayer.start(); // 开始播放

		} catch (Exception e) {

			e.printStackTrace();

		}

		Log.d(TAG,"method playmusic()has been called!");

		Log.d(TAG,"the path of this song is that:"+path);

		return true;

	}