title: How to animate the change of image in an UIImageView?
body: <p>I have an <code>UIImageView</code> with an image. Now I have a completely new image (graphic file), and want to display that in this <code>UIImageView</code>. If I just set </p>
  
  <pre><code>myImageView.image = newImage;
  </code></pre>
  
  <p>the new image is visible immediately. Not animatable. </p>
  
  <p>I want it to nicely fade into the new image. I thought maybe there's a better solution than just creating a new <code>UIImageView</code> on top of that and blending with animation?</p>