Restart Activity with back button

Question

Basically my MainActivity has a button which will become invisible after clicking and the SecondActivity will be called after a few seconds. However, when I press the back botton, the button on the MainActivity is still invisible. I want the MainActivity to restart/initialize. I knew it is something to do with onResume or onRestart but how can I implement these methods? Can anyone give me an example? Thanks.

Answer 1

You could call finish() on your MainActivity when you go to your second one. Then Override onBackPressed() in your SecondActivity and start the MainActivity again.

@Override
public void onBackPressed()
{
    // create Intent and start MainActivity again
}