How to add sound when back button is pressed in complete application

Question

我的应用程序很大，有很多活动和片段，是否可以在应用程序中的任何地方随时按下后退按钮来添加声音？

Answer 1

Override onBackPressed() method of your activity class

@Override
public void onBackPressed()
{
    super.onBackPressed();

    String tonePath = "android.resource://in.plackal.juswrite2/raw/" + R.raw.tone1;
    RingtoneManager ringToneManager = RingtoneManager.getRingtone(getApplicationContext(), Uri.parse(tonePath));

    ringToneManager.play();

    finish();
}

Answer 2

You can make a custom class BaseActivity which extends Activity class.

In that, override onBackPressed like this:

public class BaseActivity extends Activity{

    @Override
    public void onBackPressed() {
        // TODO Auto-generated method stub
        super.onBackPressed();
        //play sound

    }
}

Now, in all your activities, extend BaseActivity instead of Activity .

public class MyActivity1 extends BaseActivity{

}

and

public class MyActivity2 extends BaseActivity{

}

Hope this helps.

Answer 3

I think you just have to @Override the onBackPressed() , and then inside of this method put the sound.

@Override
public void onBackPressed() {
    Log.d("back", "onBackPressed Called");
    MediaPlayer mp = MediaPlayer.create(getApplicationContext(),R.raw.AudioFile);
    mp.start();
}

Hope it helps.

Answer 4

Derive all your activities from a base activity and play your sound in onBackPressed in the base activity.

OK I voted for one of the faster answers (FlamePrincess) that included code.

Answer 5

Use SoundPool class to play small sound files.

Override Back button for every Activity and play the sound inside that method.

@Override
public void onBackPressed() {
   // Write your sound play logic over here
}