title: Make the UICollectionView scrollable even when its not full
body: <p>The UICollectionView disables scrolling by default when there is not enough cells in the view. When this occurs I need it to bounce back to position when pulled. Im am aware of a hack where I can fill the UICollectionView with empty tables to enable scrolling but I was hoping there would be a slightly more fluid example as </p>
  
  <p>I don't want the view to scroll but instead to automatically bounce back to its position. This is because of the effect I have implemented below as can see below.</p>
  
  <p><a href="https://youtu.be/r75xB9-Mb4g" rel="noreferrer">https://youtu.be/r75xB9-Mb4g</a></p>
  
  <p>Is there a way to achieve this simply, when there is not enough cells in the UICollectionView the scroll is disabled. </p>