title: Possibility of not calling Activity.onResume()
body: <p>My app does a lot of setting up in onCreate and then in onResume.</p>
  
  <p>Is it possible that if a device rotation occurs while onCreate is being performed then onResume won't be called?</p>
  
  <p>I'm asking because I receive many crash logs happening in onPause(). The crashes occur, because in onResume() I ALWAYS register some listeners and in onPause they are ALWAYS unregistered. Exception is thrown when a listener that hasn't been registered is unregistered.</p>
  
  <p>So: is it possible that onResume() is not called at all before onPause()?</p>