title: How to add screen tracking/timings in Firebase Analytics?
body: <p>I see there is an update in the last android sdk and they show, they log the parameter on every event is logged, but how can I add screen tracking?</p>
  
  <p>There is a user engagement tab in the dashboard, but that does not expand to give some more insights. </p>
  
  <p>However, I see messages like this while switching activities:</p>
  
  <blockquote>
    <p>D/FA: Logging event (FE): _e, Bundle[{_o=auto, _et=4807, _sc=MainActivity, _si=-3289793799694080660}]</p>
  </blockquote>
  
  <p>What does that mean? They are tracking activities? If yes, how can we see timings? If no, how can we track activity/screen timings with the help of custom events (this is possible, right?) ?</p>