在安卓存储中查找mp3歌曲

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

if (ContextCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
    ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, PERMISSION_REQUEST_CODE);
}

Uri uri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
String[] projection = {MediaStore.Audio.Media._ID, MediaStore.Audio.Media.TITLE, MediaStore.Audio.Media.ARTIST, MediaStore.Audio.Media.DATA};
String selection = MediaStore.Audio.Media.IS_MUSIC + "!= 0";
String sortOrder = MediaStore.Audio.Media.TITLE + " ASC";

Cursor cursor = getContentResolver().query(uri, projection, selection, null, sortOrder);
if (cursor != null) {
    while (cursor.moveToNext()) {
        String title = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.TITLE));
        String artist = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.ARTIST));
        String path = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.DATA));
        // 处理获取到的音频文件信息
    }
    cursor.close();
}