title: Unloading Storyboard View
body: <p>I'm opening a storyboard view using the following:</p>
  
  <pre><code>    GroupProximity *proximity = [self.storyboard instantiateViewControllerWithIdentifier:@"groupproximity"];
  
       [self.navigationController pushViewController:proximity animated:YES];
  </code></pre>
  
  <p>However, when I use the back button on the top bar, it appears that the activity is not stopped.  How do I unload a storyboard view when the back button is pressed?</p>