mediaPlayer 在线播放

对于在线歌曲，只需将mp3Path赋值为相应的网址即可，如

mp3Path = "http://abv.cn/music/光辉岁月.mp3";

mediaPlayer.setDataSource(mp3Path);

对于seekBar的缓冲进度更新，只需

seekBar.setSecondaryProgress(pos);

具体如下：

 1 mediaPlayer.setOnBufferingUpdateListener(new MediaPlayer.OnBufferingUpdateListener() {
 2     @Override
 3     public void onBufferingUpdate(MediaPlayer mp, int percent) {
 4         int pos = seekBar.getMax() * percent/100;
 5         seekBar.setSecondaryProgress(pos);
 6
 7         int currentProgress = 100 * mediaPlayer.getCurrentPosition() / mediaPlayer.getDuration();
 8         Log.d(currentProgress + "% play", percent + "% buffer");
 9     }
10 });