title: Avoid Spinner's onItemSelected being called automatically after setAdapter
body: <p>The <code>Spinner</code> is calling <code>onItemSelected</code> automatically after setting adapter, and I'd like to avoid it without any kind of workaround such as using flags to check if it's the first time; add the listener after setting adapter or any verification like those.</p>
  
  <p>Does anyone have an idea about how to do that?</p>