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

The first time the onItemSelected runs, the view is not yet inflated. The second time it is already inflated. The solution is to wrap methods inside onItemSelected with if (view != null).

@Override
public void onItemSelected(AdapterView parent, View view, int pos, long id) {
    if (view != null) { 
        //do things here

    }
}