Android - 通过系统数据库获取SD卡音乐媒体信息

private void getMusicPaths(){
//
// 获取音乐列表
//
Cursor cursor = getContentResolver().query(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, null, null, null, MediaStore.Audio.Media.DEFAULT_SORT_ORDER);
if(cursor.moveToFirst()){
while (!cursor.isAfterLast()) {
//歌曲编号
//int id = cursor.getInt(cursor.getColumnIndexOrThrow(MediaStore.Audio.Media._ID));
//歌曲标题
String tilte = cursor.getString(cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.TITLE));
//歌曲的专辑名：MediaStore.Audio.Media.ALBUM
//String album = cursor.getString(cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.ALBUM));
//歌曲的歌手名： MediaStore.Audio.Media.ARTIST
String artist = cursor.getString(cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.ARTIST));
//歌曲文件的路径 ：MediaStore.Audio.Media.DATA
String url = cursor.getString(cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.DATA));
//歌曲的总播放时长 ：MediaStore.Audio.Media.DURATION
//int duration = cursor.getInt(cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.DURATION));
//歌曲文件的大小 ：MediaStore.Audio.Media.SIZE
//Long size = cursor.getLong(cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.SIZE));
cursor.moveToNext();
}
}
}