您好，我有code哗哗获取列表的MP3文件从SD卡在我的手机， 我怎么可以将其更改为从原文件夹获取MP3

 公开的ArrayList＆LT;轨道＆GT; getTracksOnMDS（）{
    开放的我们的uri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
    的String []投影=新的String [] {MediaStore.Audio.Media._ID，
            MediaStore.Audio.Media.TITLE，MediaStore.Audio.Media.ARTIST，
            MediaStore.Audio.Media.ALBUM_ID，MediaStore.Audio.Media.DATA};
    光标光标= ContentResolver的
            .query（URI，投影，NULL，NULL，NULL）;
    返回convertMediaStoreCursorToArrayList（光标）;
}
 

我代替一些code要做到这一点，但它不能正常工作

 文件圈=新的文件（android.resource：//com.bk.lrandom/res/raw/_10.mp3）;
开放的我们的uri = MediaStore.Audio.Media.getContentUriForPath（ring.getAbsolutePath（））;
 

解决方案

使用下面的code片段从原始文件夹播放音频文件

  MediaPlayer的MPlayer的;
MPLAYER = MediaPlayer.create（这一点，R.raw.bg_music）;
mPlayer.start（）;
 

hi i have the code whish get list mp3 file from sdcard in my phone , how i can change it to get mp3 from raw folder

public ArrayList<Track> getTracksOnMDS() {
    Uri uri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
    String[] projection = new String[] { MediaStore.Audio.Media._ID,
            MediaStore.Audio.Media.TITLE, MediaStore.Audio.Media.ARTIST,
            MediaStore.Audio.Media.ALBUM_ID, MediaStore.Audio.Media.DATA };
    Cursor cursor = contentResolver
            .query(uri, projection, null, null, null);
    return convertMediaStoreCursorToArrayList(cursor);
}    

i replace some code to do this but it is not work

File ring = new File("android.resource://com.bk.lrandom/res/raw/_10.mp3");
Uri uri = MediaStore.Audio.Media.getContentUriForPath(ring.getAbsolutePath());    

Use the following code snippet to play audio file from raw folder

MediaPlayer mPlayer;
mPlayer= MediaPlayer.create(this, R.raw.bg_music);
mPlayer.start();