How to catch event with hardware back button on android?

Question

How to catch event with hardware back button on android ? I need to supress user to go back and I when click on back button on phone to show message and not to go on previou

Answer 1

You can suppress user "back" action with onKeyDown() in your activity like this:

@Override
public boolean onKeyDown(int keyCode, KeyEvent event)
{
    if ((keyCode == KeyEvent.KEYCODE_BACK))
    {
        //do actions like show message
        return false;
    }
    return super.onKeyDown(keyCode, event);
}