title: Android activity lifecycle: state order when new activity starts
body: <p>If I launch Activity2 from Activity1 by this way: <code>startActivity(Activity2);</code> what executes first: <code>onStop()</code> (Activity1) or <code>onStart()</code> (Activity2) ?</p>
  
  <p>Do they work simultaneously or in turn? If one after another, what is first?</p>
  
  <p>So in general : what is the activity's state order when first activity starts second, if this order exists?</p>