Question

I have an application that when a button is clicked it changes the content view, but when I press the back button, it closes the activity. How do I change what the back button does. In this case it will be the back button changing the layout again.

Thanks

Answer 1

You must override onBackPressed() in your activity.

@Override
public void onBackPressed() {
    //your code when back button pressed
}

The onBackPressed method is called when the back Button is pressed, for that, you must change the content of this method by overriding it.