CODEWITHSUNDEEP
androidbundleandroid-mediaplayer
Zippy
Zippy

Reputation: 3887

Android Media Player doesn't play after app has been left for a while in the background

Bit of a strange one this and I can't work out what's happening.

When I launch my app (a game) the music starts playing. I have a button which turns the music on and off. The settings are saved to shared prefs so they are retained.

All works well, you can press the home key, re-invoke the app, leave it in the background while doing other things etc. However, if the app is left in the background for a while (say, overnight), and then re-invoked. Everything works apart from the music.

You can go into the main menu, hit the 'music on/off' button multiple times, but get nothing.

The only way to start the music is to kill the app (or exit correctly, ie, press the 'back' key from the main menu) and then relaunch it so everything is re-created from scratch.

I've confirmed that the 'music' object is still valid and the 'music on/off' button presses are being registered.

Has anyone has similar issues with Media Player? I can't work out what I am (or am not doing) to cause this.

Code

This is my media player class:

public class MusicMan implements MediaPlayer.OnPreparedListener {

MediaPlayer musicPlayer;

MusicMan(Context myContext){

    musicPlayer = MediaPlayer.create(myContext, R.raw.music);
    musicPlayer.setVolume(.6f, .6f);


}

public void listener(){};


public void start(){

    musicPlayer.setLooping(true);
    musicPlayer.start();

}

public void stop(){

    musicPlayer.stop();

}

public void pause(){

    musicPlayer.pause();        
}


public int getPos(){

    return musicPlayer.getCurrentPosition();        
}


public void skipTo(int position){

    musicPlayer.seekTo(position);

}

@Override
public void onPrepared(MediaPlayer arg0) {

}


}

And then I simply crate an object like so:

MusicMan music = new MusicMan(view.getContext());

And then I just start and stop the music using the methods in the MusicMan class:

music.start();

Upvotes: 0

Views: 644

Answers (1)

Gavin
Gavin

Reputation: 321

You need to use 

musicPlayer.setWakeMode(getApplicationContext(), PowerManager.PARTIAL_WAKE_LOCK);

Use this where you set new MediaPlayer player. It sets the wake lock to MediaPlayer and don't let CPU go sleep till you yourself didn't kill or stop application.

Upvotes: 1

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