How to play next random song of the array of songs

Question

I have an array of songs, My app play songs randomly when an activity is open but when the song is finished I would like to play another random song from the array, does anyone can help with it?

public MediaPlayer mediaPlayer;
private int songs[];

songs = new int[] {
    R.raw.track1,
    R.raw.track2,
    R.raw.track3,
    R.raw.track4,
    R.raw.track5,
    R.raw.track6,
    R.raw.track7,
    R.raw.track8,
    R.raw.track9,
    R.raw.track10,
    R.raw.track11,
    R.raw.track12,
    R.raw.track13,
    R.raw.track14,
    R.raw.track15,
    R.raw.track16,
    R.raw.track17,
};


int randomSong =  new Random().nextInt(songs.length);
mediaPlayer = MediaPlayer.create(this, songs[randomSong]);
mediaPlayer.start();

Answer 1

Try this, You need to implement MediaPlayer.OnCompletionListener interface in your activity

public class MainActivity extends AppCompatActivity implements MediaPlayer.OnCompletionListener {
    private MediaPlayer mediaPlayer;
    private int songs[];
    private int randomSong;
    private Random random = new Random();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mediaPlayer.setOnCompletionListener(this);
        songs = new int[]{
                R.raw.track1,
                R.raw.track2,
                R.raw.track3,
                R.raw.track4,
                R.raw.track5,
                R.raw.track6,
                R.raw.track7,
                R.raw.track8,
                R.raw.track9,
                R.raw.track10,
                R.raw.track11,
                R.raw.track12,
                R.raw.track13,
                R.raw.track14,
                R.raw.track15,
                R.raw.track16,
                R.raw.track17,
        };


        randomSong = getRandom(songs);
        mediaPlayer = MediaPlayer.create(this, songs[randomSong]);
        mediaPlayer.start();
    }

    @Override
    public void onCompletion(MediaPlayer mediaPlayer) {
        randomSong = getRandom(songs);
        mediaPlayer = MediaPlayer.create(this, songs[randomSong]);
        mediaPlayer.start();
    }

    public int getRandom(int[] array) {
        return random.nextInt(array.length);
    }
}