title: Swift 2 - Bring selected CollectionView Cell in front of other cells
body: <p>I have a <code>UICollectionView</code> in my view controller. It has been setup and its working fine.</p>
  
  <p>I am trying to zoom a cell when a button inside the cell itself has been pressed.</p>
  
  <p>The code I have zooms the cell however, I cannot find the way to force the cell selected to go to the front of the other cells.
  Right now the cell selected its always behind the cell before the selected.</p>
  
  <p>How can I force the cell selected to zoom in front of the other cells?</p>
  
  <pre><code>@IBAction func detailBtnAction(sender:UIButton){
  
          let indexUser = (sender.layer.valueForKey("indexBtn")) as! Int
          let indexPath = NSIndexPath(forItem: indexUser, inSection: 0)
          let feedCell = feedCollectionView.cellForItemAtIndexPath(indexPath)
              feedCell?.bringSubviewToFront(feedCollectionView)
  
          feedCell?.contentView.bringSubviewToFront(feedCollectionView)
  
          UIView.animateWithDuration(1.0) { () -&gt; Void in
              feedCell?.transform = CGAffineTransformMakeScale(5, 5)
          }
  
  }
  </code></pre>