title: How to change Image view in collection view cell
body: <p>I created an <code>imageView</code> in a collection view cell this way: </p>
  
  <pre><code>func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -&gt; UICollectionViewCell {
  
      let cell = collectionView.dequeueReusableCellWithReuseIdentifier("Cell", forIndexPath: indexPath)
      let imageView: UIImageView = UIImageView(image: UIImage(named: "image"))
      cell.contentView.addSubview(imageView)
  
      return cell
  }
  </code></pre>
  
  <p>The collection view has 2 cells, now I need to change the image of the first cell to <code>Batman</code> and the second to <code>Superman</code>, how should I achieve it? </p>