uicollectionview decoration

To add decoration views to a UICollectionView, you can use the new features introduced in iOS 18. Specifically, the session "What’s new in UIKit" covers improvements to UICollectionView and UITableView, including the new list environment trait and background configurations.

Here are some key points from the session:

1. List Environment Trait: This trait helps ensure that cells are styled appropriately in any given list. It automatically updates the appearance of cells, headers, and footers based on the list environment.

2. Background Configurations: There are new constructors for list cell, list header, and list footer background configurations. These configurations automatically update their appearance based on the list environment trait.

3. UI Update Link: This new feature in iOS 18 makes it easier to implement complex animations that require periodic UI updates, which can be useful for creating dynamic and engaging decoration views.

For more detailed information, you can refer to the session "What’s new in UIKit" starting at the chapter on "List improvements".

Relevant Sessions

1. What’s new in UIKit
2. Evolve your document launch experience - This session also touches on adding decorative views to your design using accessory views.