Stop sound file when back pressed in Android

Question

I have some audio files in listview which I play them randomly. while the file is playing I want to go back by pressing the back button, so in method onBackpressed I put the following

 if(mMediaPlayer.isPlaying())
    {
        mMediaPlayer.release();
        mMediaPlayer = null;
    }else
    {
        //show a message or something
    }

but its not working and I get a FATAL EXCEPTION MAIN NullpointerException in the case the audio its not playing

so `mMediaPlayer` is null, check that is not null – Shayan Pourvatan Apr 25 '15 at 08:51 — Shayan Pourvatan, Apr 25 '15 at 08:51

score 1 · Accepted Answer · answered Apr 25 '15 at 08:51

1

Try this code , it may help you

 if(mMediaPlayer!=null && mMediaPlayer.isPlaying())
    {
        mMediaPlayer.release();
        mMediaPlayer = null;
    }else
    {
        //show a message or something
    }

answered Apr 25 '15 at 08:51

N J

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Anoop M Maddasseri · Answer 2 · 2015-04-25T09:18:51.020

0

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

if(mMediaPlayer!=null && mMediaPlayer.isPlaying())
{
mMediaPlayer.stop();
mMediaPlayer.release();
mMediaPlayer = null;
}

}

@Override
protected void onDestroy() {
 super.onDestroy();
if(mMediaPlayer!=null && mMediaPlayer.isPlaying())
{
 mMediaPlayer.stop();
 mMediaPlayer.release();
 mMediaPlayer = null;  
}
}

edited Apr 25 '15 at 09:18

answered Apr 25 '15 at 08:58

Anoop M Maddasseri

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Stop sound file when back pressed in Android

2 Answers2