“Back” doesn't work when start the mapview activity

Question

why my back button doesn't function in google map activity ? already include:

@Override
public void onBackPressed()  {return;}

but still doesn't work.

Answer 1

You need this:

@Override
public void onBackPressed() {
    super.onBackPressed();
}

Or this pre API level 5:

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {

    if(keyCode == KeyEvent.KEYCODE_BACK) {
        // your implementation here
        // finish(); - to exit the Activity
        return true; // shows you consumed the event with your implementation
    }
    return super.onKeyDown(keyCode, event);
}

Answer 2

write

super.onBackPressed();

or

this.finish();

instead of return;