Spinner's onItemSelected callback called twice after a rotation if non-zero position is selected

Question

When I create my activity, I setup a Spinner, assigning it a listener and an initial value. I know that the onItemSelected callback is called automatically during a

Answer 1

Just use setSelection(#, false) before setting the listener:

@Override
protected void onCreate(Bundle savedInstanceState) {
    ...
    spinner.setSelection(2, false);
    spinner.setOnItemSelectedListener(this);
}

The key is the second parameter. It says to not animate the transition, executing the action immediately and preventing onItemSelected from being fired twice, because a call is already made by the system.