onKeyDown is not being called

Question

I want to handle the navigation-bar buttons. I see that I can override the onKeyDown() method in MainActivity

@Override
public boolean onKeyDown(int code, KeyEvent e) {
if(code == KeyEvent.KEYCODE_BACK){
    return true;
}else{
return super.onKeyDown(code, e);
}
}

But it is not being called.

score 1 · Answer 1 · answered Nov 09 '17 at 12:54

1

please add into Constructor

setFocusable(true);
requestFocus();

answered Nov 09 '17 at 12:54

Ara Hakobyan

1,682
1
10
21

1

They are both unresolved in the MainActivity. Where should they be added? Also, I use: dialog.getWindow().setFlags(WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE, WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE); to hide the navigation bar (and it is displayed only when it shows the keyboard. – Shlomo Nov 12 '17 at 06:14

score 0 · Answer 2 · answered Nov 09 '17 at 12:53

0

It's getting called but you're not doing anything with it?

call finish() or something.

also you can override onBackPressed()

answered Nov 09 '17 at 12:53

purush

559
3
12

1

I have a break point inside, and the system doesn't call it. – Shlomo Nov 12 '17 at 06:15

score 0 · Answer 3 · answered Nov 09 '17 at 12:57

try to toast or log

  @Override
public boolean onKeyDown(int code, KeyEvent e) {
    if (code == KeyEvent.KEYCODE_BACK) {
        Toast.makeText(this, "on press", Toast.LENGTH_SHORT).show();
        return true;
    } else {
        return super.onKeyDown(code, e);
    }
}

onKeyDown is not being called

3 Answers3