title: sendSubviewToBack on iOS not working
body: <p>I am trying to move a storyboard created UIImageView called pic behind a programmatically created collection view. However, the collectionView is first moved back behind some buttons. Unfortunately, the collection view ends up behind the pic. And yes, I have also tried to delay it by a few seconds and it still won't work.</p>
  
  <pre><code>  [self.view sendSubviewToBack: collectionView];
          [self.viewsendSubviewToBack: pic];
  </code></pre>
  
  <p><strong><em>Update</em></strong>
  I have determined that it is because the storyboard created UIImageView called pic is refusing to go all the way to the back. How do I send that to the very back?</p>