Does Binding prevent completely redrawing the view
Generated on 9/25/2024
1 search
In the session titled "SwiftUI essentials" from WWDC 2024, it is explained that a Binding in SwiftUI creates a two-way reference to the state of another view. This allows for synchronization between views, ensuring that when one view updates its state, other views that are bound to this state also update accordingly. However, the use of Binding itself does not prevent a view from being completely redrawn. Instead, it ensures that the state changes are propagated correctly across views that share the same state.
When a state change occurs, SwiftUI will call the body of the view again to reflect the new state, which can result in the view being redrawn. The key benefit of using Binding is maintaining a single source of truth and ensuring that all dependent views are updated in sync.
For more details, you can refer to the SwiftUI essentials session.
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.
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.
Migrate your TVML app to SwiftUI
SwiftUI helps you build great apps on all Apple platforms and is the preferred toolkit for bringing your content into the living room with tvOS 18. Learn how to use SwiftUI to create familiar layouts and controls from TVMLKit, and get tips and best practices.
Create custom visual effects with SwiftUI
Discover how to create stunning visual effects in SwiftUI. Learn to build unique scroll effects, rich color treatments, and custom transitions. We’ll also explore advanced graphic effects using Metal shaders and custom text rendering.