How to handle KeyEvent of home button in an Android application?

Question

I'm developing an application in Android, and I use the the following code to handle the KeyEvent for the back button:

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    if ((keyCode == KeyEvent.KEYCODE_BACK)) 
    {           
        finish();
    }

    return super.onKeyDown(keyCode, event);
}

How would I go about doing this for the home button?

U want just close the activity with out changing any in the previous activity.. — RajaReddy PolamReddy, Oct 11 '11 at 06:34
You shouldn't do this. See this question: http://stackoverflow.com/questions/4783960/call-method-when-home-button-pressed-on-android — kgiannakakis, Oct 11 '11 at 06:34
May You can get Solution by [This][1] [1]: http://stackoverflow.com/questions/10869814/how-to-handle-home-button-in-android/13031697#13031697 — Yog Guru, Oct 23 '12 at 13:38

score 2 · Answer 1 · edited Jul 05 '17 at 15:21

You can not control the behaviour of Home key. You will not get the event of Home key but you can disable it but it is highly recommended you should not do this.Before blocking the Home key refer this post.

However you can block the home key like this:

@Override
public void onAttachedToWindow() {
    this.getWindow().setType(WindowManager.LayoutParams.TYPE_KEYGUARD);
    super.onAttachedToWindow();
}

score 1 · Answer 2 · edited May 23 '17 at 09:59

1

As this question suggests: Android Overriding home key this is unfortunately not possible. Perhaps there is some other way to implement your desired behavior?

edited May 23 '17 at 09:59

Community

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answered Oct 11 '11 at 06:34

Tobbe

1,825
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score 1 · Answer 3 · answered Oct 11 '11 at 07:02

1

Obvious answer is - handle home key press in onPause() method of your activity. This callback is called when user hits home key. Guaranted. Home key is not for you, but for OS and user.

answered Oct 11 '11 at 07:02

Konstantin Pribluda

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score 0 · Answer 4 · edited May 23 '17 at 12:18

Read these :

Overriding the Home button - how do I get rid of the choice?

Android - How to catch that the Home button was pressed?

The home button is supposed to do one thing and one thing only and consistently. Get the user back to the the HOME screen. Even if you could override it's behavior it would be an extremely user-unfriendly thing to do. So don't do it and solve your problem differently!strong text

How to handle KeyEvent of home button in an Android application?

4 Answers4