title: iOS Looping Image Slideshow
body: <p>I have around 30 images. I want to have a slideshow running of these images without user intervention. Prime requirements are -</p>
  
  <ol>
  <li>image1 fadesIn, displays for 20 seconds, image1 fadesOut - image2 FadesIn etc. All this happens automatically. No user intervention. </li>
  <li>Also when we reach the last image, image20. The slideshow loops back to the first image. </li>
  <li>This slideshow might have other elements also like <code>UILabel</code>. So it's just not image slideshow.</li>
  </ol>
  
  <p>My biggest problem is how to chain 20 images into this fadein/fadeout animation? How do we get this done in iOS? </p>