Disabling the back button for popup windows

Question

Based on a YouTube tutorial video (https://www.youtube.com/watch?v=wxqgtEewdfo) that teaches how to create popup windows, I was wondering how to dismiss the popup with a touch event as opposed to the back button...

Here's MainActivity:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    RelativeLayout relative = (RelativeLayout)findViewById(R.id.relativeTest);

    Button button = (Button)findViewById(R.id.button);
    button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            LayoutInflater layoutInflater = (LayoutInflater) getApplicationContext().
                    getSystemService(LAYOUT_INFLATER_SERVICE);
            ViewGroup container = (ViewGroup) layoutInflater.inflate(R.layout.myLayout, null);

            PopupWindow popupWindow = new PopupWindow(container, AbsListView.LayoutParams.MATCH_PARENT,
                    AbsListView.LayoutParams.MATCH_PARENT, true);
            popupWindow.showAtLocation(relative, Gravity.CENTER, 0, 0);

            container.setOnTouchListener(new View.OnTouchListener() {
                @Override
                public boolean onTouch(View v, MotionEvent event) {
                    popupWindow.dismiss();

                    return true;
                }
            });
        }
    });
}

@Override
public void onBackPressed() {
    // I want the back button to be disabled for both MainActivity and the
    // popup window.
}

... Should I place onBackPressed() elsewhere or would that even be possible?

Thanks in advance.

You can override onBackPressed and use some logic (for example checking if the popup is showing). Only call super.onBackPressed in situations that you want to actually use backPressed. For example, `if(!mPopupWindow.isShowing()) super.onBackPressed();` — zgc7009, Apr 05 '16 at 16:23
Possible duplicate of [Android popup window dismissal](http://stackoverflow.com/questions/3121232/android-popup-window-dismissal) — Wilder Pereira, Apr 05 '16 at 16:27
@zgc7009 I know what you mean and that's what I did earlier, but I changed gears here... I want to disable the back button in general for both activity_main and the popup (dismissable only by a touch event), and it somehow only works for devices under API 23 (6.0). — DaveNOTDavid, Apr 05 '16 at 16:39
@WilderPereira Really? I don't think so; the back button dismisses my popups if I want it to... I want the opposite for **all** devices. — DaveNOTDavid, Apr 05 '16 at 16:43

score 3 · Accepted Answer · answered Apr 05 '16 at 19:03

Ok, I figured it out (credits to Filip, the uploader of the YouTube video) now... The problem was that I included and set the last parameter of PopupWindow, focusable, to true, and as soon as I got rid of it as follows:

popupWindow = new PopupWindow(container, AbsListView.LayoutParams.MATCH_PARENT,
                    AbsListView.LayoutParams.MATCH_PARENT);

... The popup is now only dismissable by a touch event.

score 0 · Answer 2 · answered Apr 05 '16 at 16:23

0

Just leave onBackPressed blank. Remove the super.OnBackPressed line

answered Apr 05 '16 at 16:23

Ankesh kumar Jaisansaria

1,563
4
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... That's what I did. – DaveNOTDavid Apr 05 '16 at 16:33
@Override public void onBackPressed() { moveTaskToBack(false); } – Ankesh kumar Jaisansaria Apr 05 '16 at 16:42

score 0 · Answer 3 · answered Apr 05 '16 at 16:41

0

Try this:-

@Override
public boolean onKeyDown(int keyCode, KeyEvent event)  {
if (Integer.parseInt(android.os.Build.VERSION.SDK) > 5
        && keyCode == KeyEvent.KEYCODE_BACK) {
    Log.d("CDA", "onKeyDown Called");
    onBackPressed();
    return true; 
}
return super.onKeyDown(keyCode, event);
}

answered Apr 05 '16 at 16:41

Ankesh kumar Jaisansaria

1,563
4
26
44

Nope, didn't make a difference... I appreciate the help btw! – DaveNOTDavid Apr 05 '16 at 16:56
I figured it out now! Check out my answer post :) – DaveNOTDavid Apr 05 '16 at 19:04

Disabling the back button for popup windows

3 Answers3