Playing BG Music Across Activities in Android

user_245642 0
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Hello! First time to ask a question here at stackoverflow. Exciting! Haha.

We're developing an Android game and we play some background music for our intro (we have an Intro Activity) but we want it to continue playing to the next Activity, and perhaps be able to stop or play the music again from anywhere within the application.

What we're doing at the moment is play the bgm using MediaPlayer at our Intro Activity. However, we stop the music as soon as the user leaves that Activity. Do we have to use something like Services for this? Or is MediaPlayer/SoundPool enough? If anyone knows the answer, we'd gladly appreciate your sharing it with us. Thanks!

background-music media android java
6 Answers

By combining Chad's and Kedu's answers and adding my own flavor, I created this working solution:

// Parent Activity which every Activity extends
public class ParentActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }

    @Override
    protected void onStart() {
        super.onStart();
        Music.onStart();
    }

    @Override
    protected void onStop() {
        super.onStop();
        Music.onStop();
    }
}

// Controller class for handling background music
public abstract class Music {

    private static MediaPlayer mediaPlayer;
    private static int startCounter = 0;

    public static void onStart() {
        startCounter++;
        if (startCounter == 1) {
            mediaPlayer = MediaPlayer.create(InitializeActivity.getContext(), R.raw.background_music);
            mediaPlayer.setLooping(true);
            mediaPlayer.setVolume(1f, 1f);
            mediaPlayer.start();
        }
    }

    public static void onStop() {
        startCounter--;
        if (startCounter == 0) {
            mediaPlayer.stop();
            mediaPlayer.release();
        }
    }
}

And that's it, super simple!

user_120990620
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