title: Use launch image set on UIImageView
body: <p>I am creating instruction screen for my app where I have to place a full screen sized image. For that purpose I have to consider all screen sizes and thus I have created a Launch image set in AssetCatalog.<br>
  On the view, I have <code>UIImageView</code>. On setting the image for the <code>UIImageView</code>, I get a white screen. I am guessing launch image can't be set on <code>UIImageView</code>.<br>
  What might be the best approach here ?<br>
  <strong>Note</strong> : Please share your answers considering the latest naming conventions (including iPhone X) if required.</p>