DroidMelody

This is an easy-to-use library that simplifies access to music files on Android.

Usage

Add to your Android Studio project the following dependency:

implementation 'com.progur.droidmelody:droidmelody:1.0.2'

If you want to get a list of all songs available on an Android device, all you need is the following code:

SongFinder songFinder = new SongFinder(getContentResolver());
songFinder.prepare();

List<SongFinder.Song> songs = songFinder.getAllSongs();
System.out.println(songs.size());
for(SongFinder.Song song:songs) {
    System.out.println(song.getTitle());
    System.out.println(song.getArtist());
}

On devices running Android Marshmallow or higher, you'll need to request the READ_EXTERNAL_STORAGE permission at runtime in to access music files on the SD Card. You can either request it using the usual code, or you can use the MelodyHelper helper class:

// Check if permission granted. If not, request
if(MelodyHelper.hasExternalStorageAccess(this)) {
    // Do something
}

...
...

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, 
                                                        @NonNull int[] grantResults) {
    if(MelodyHelper.isAccessGranted(requestCode, permissions, grantResults)) {
        // Do something
    }
}