ViewController | Ask WWDC

The concept of a ViewController is discussed in several sessions at WWDC 2024. Here are some highlights:

Enhance your UI animations and transitions: This session delves into how new fluid transitions work with the view controller lifecycle and appearance callbacks in UIKit. It explains the states a view controller goes through during transitions, such as appearing and disappearing, and how these states are managed through callbacks. This is particularly useful for understanding how to handle transitions in a UIKit app. You can find more details in the chapter on UIKit view controller life cycle and callbacks.
Evolve your document launch experience: This session discusses using a UI document view controller as the root view controller in UIKit apps to customize the launch experience. It emphasizes the importance of making your app's launch experience unique and recognizable. More information can be found in the chapter on Getting started with UIKit.
Explore multiview video playback in visionOS: This session covers the use of AVPlayerViewController and its integration with multiview experiences. It explains how to manage transitions and maintain consistency between app state and multiview manager actions using delegates. This is particularly relevant for apps that handle video content and require complex view management. The chapter on Design a multiview experience provides more insights.

These sessions provide a comprehensive overview of how view controllers are utilized in different contexts and platforms, offering both high-level concepts and practical implementation details.