Building modern user interfaces can be challenging if you solely rely on traditional Cocoa APIs. Apple is aware of this limitation and introduced a number of brand new APIs to build modern, performant user interfaces.

The previous episode focused on the basics of compositional layouts. A key feature of compositional layouts is the simple and readable API. The code we wrote in the previous episode isn't complex or difficult to understand. Another nice bonus is that we didn't need to subclass the UICollectionViewCompositionalLayout class.

The past episodes have illustrated that creating a compositional layout isn't difficult or complex. The API of the UICollectionViewCompositionalLayout class is intuitive and flexible. In this episode, we revisit the feed view controller one more time. The plan is to display a title at the top of the feed view controller's collection view using a supplementary view.