播放铃声，

播放铃声，

不需要附加权限；省略了异常处理；参考 http://blog.csdn.net/zhi_jian/article/details/6662821；

1.[Java]代码

MediaPlayer mMediaPlayer = new MediaPlayer();
mMediaPlayer.setDataSource(context, RingtoneManager.getDefaultUri(RingtoneManager.TYPE_RINGTONE));
mMediaPlayer.setAudioStreamType(AudioManager.STREAM_RING);
mMediaPlayer.setLooping(true); 
mMediaPlayer.prepare();
mMediaPlayer.start();
//...
mMediaPlayer.stop();