title: How to set an image dynamically on UICollectionView section header?
body: <p>I have an <code>UICollectionView</code> with a custom header. I have an <code>ImageView</code> and a <code>label</code> on the header view. I want to change the ImageView's image when I'm selecting an item from UICollectionView? Is it possible to do? If it is how can I do it?</p>
  
  <p>Thanks in Advance!</p>