uiview life
Generated on 8/22/2024
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The UIView lifecycle is an important concept when working with UIKit, especially in the context of animations and transitions. At WWDC 2024, several sessions touched on aspects of UIView and its lifecycle:
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Enhance your UI animations and transitions: This session discusses how to handle state during transitions and the importance of resetting state by using
viewDidAppearorviewDidDisappear. These methods are guaranteed to be called at the end of a transition when using navigation controller delegate methods. The session also highlights the integration of SwiftUI for handling transitions more functionally. You can learn more about this in the chapter on "UIKit view controller life cycle and callbacks" starting at 04:15. -
What’s new in UIKit: This session introduces the UIUpdateLink, a new feature in iOS 18, which simplifies implementing complex animations that require periodic UI updates. It automatically activates when a view is added to a visible window and deactivates when removed. This is particularly useful for managing animations in the UIView lifecycle. More details can be found in the chapter on "UIUpdateLink" starting at 11:18.
These sessions provide insights into managing UIView lifecycle events effectively, especially in the context of animations and transitions.
SwiftUI essentials
Join us on a tour of SwiftUI, Apple’s declarative user interface framework. Learn essential concepts for building apps in SwiftUI, like views, state variables, and layout. Discover the breadth of APIs for building fully featured experiences and crafting unique custom components. Whether you’re brand new to SwiftUI or an experienced developer, you’ll learn how to take advantage of what SwiftUI has to offer when building great apps.
Enhance your UI animations and transitions
Explore how to adopt the zoom transition in navigation and presentations to increase the sense of continuity in your app, and learn how to animate UIKit views with SwiftUI animations to make it easier to build animations that feel continuous.
What’s new in UIKit
Explore everything new in UIKit, including tab and document launch experiences, transitions, and text and input changes. We’ll also discuss better-than-ever interoperability between UIKit and SwiftUI animations and gestures, as well as general improvements throughout UIKit.
What’s new in SwiftUI
Learn how you can use SwiftUI to build great apps for any Apple platform. Explore a fresh new look and feel for tabs and documents on iPadOS. Improve your window management with new windowing APIs, and gain more control over immersive spaces and volumes in your visionOS apps. We’ll also take you through other exciting refinements that help you make expressive charts, customize and layout text, and so much more.