通过编程方式从库访问音乐文件(Android)

我想访问Android手机(而非SD卡)中的音乐库,在列表中显示.我想获取与每个文件相关的所有信息,例如时长,艺术家等.我该如何编程呢？

解决方法:

    private void musics(){
    Uri uri = MediaStore.Audio.Media.INTERNAL_CONTENT_URI;
    ContentResolver cr = getContentResolver();
    String[] columns = {MediaStore.Audio.Media.disPLAY_NAME};//add which column you need here

    Cursor cursor = cr.query(uri, columns, null, null, null);

    if(cursor == null){
        return;
    }
    if(cursor.getCount() > 0){
        cursor.movetoFirst();
        do{
            //read your information here
            String artist = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.disPLAY_NAME));

        }while(cursor.movetoNext());
    }

    cursor.close();
}