Override onBackPressed() method. Back button has to be clicked twice to quit the Activity

Issue

My app looks like this:

start activity -> menu -> content -> questionnarie -> questionnarie results

From 'questionnarie results' I want to go to 'menu' Activity after clicking at the back button. I used the method:

@Override
public void onBackPressed() {
    startActivity(new Intent(this, Menu.class));
    finish();
}

It works but when I click back button again I am in the same Activity and to go to the start Activity back button has to be pressed twice. How can I make this method work properly?

Solution

When you do this:

startActivity(new Intent(this, Menu.class));

This starts a new instance of Menu. You want to return to the existing instance of Menu. To do that, you need this:

Intent intent = new Intent(this, Menu.class));
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | 
                Intent.FLAG_ACTIVITY_SINGLE_TOP);
startActivity(intent);

This tells Android that you want to go back to the existing instance of Menu.

Answered By - David Wasser