UICollectionViews are amazing in their versatility. In an attempt to learn more about animation and collections view, I ran into an interesting post by Aleksandar·Vacić on animating cells.

Referring to his app Try Couch to 5k:

In it, everything is collection views, often nested one inside another. What I wanted to do is sequentially animate each cell as it appears on the screen.

The animation has a nice effect, items appear in the middle of the screen and animate towards the outer edges of the display.