title: How to refresh listview by hitting back button - Android
body: <p>I have a ListView that is dynamic and will constantly change.  The user selects an item and goes to a different activity.</p>
  
  <p>What I want:  <em>When they hit back button and return to the ListView, I would like to call a certain action to refresh ListView</em> (in my case an AsyncTask).</p>
  
  <p>I have figured out one way to do this:  By adding my refreshing code in onResume.  But I find it refreshes a little too much -- I only want it to refresh when coming from the forward activities.</p>