How to detect Android Back button press.

Detecting android device hardware back button / soft back button press is very easy.

But be careful while overriding the default back button action as it is not suggested to change the android default user experience.

Method:- 1

Override the onBackPressed() method and take the action inside this function.

@Override
    public void onBackPressed() {
        // Write your code here
 
        super.onBackPressed();
    }