Latest changes in swiftui

Latest Changes in SwiftUI

At WWDC 2024, several exciting updates and features were introduced for SwiftUI:

1. Graphics Capabilities: SwiftUI now allows for more advanced graphics, including a new mix modifier on colors that lets you blend colors by a specified amount. Additionally, custom shaders can now be precompiled to avoid frame drops caused by lazy shader compilation.

2. Scrolling Enhancements: There are new APIs for scroll views, providing fine-grained control over scroll behavior. You can now react to changes in scroll geometry, detect view visibility changes due to scrolling, and programmatically control scroll positions and content alignment.

3. Swift 6 Language Mode: SwiftUI has improved its APIs to support the new Swift 6 language mode, which includes compile-time data race safety. Views in SwiftUI are now implicitly isolated to the main actor by default.

4. Interoperability: Significant improvements have been made to the integration of gestures and animations between SwiftUI and UIKit/AppKit. You can now use UIKit gesture recognizers in SwiftUI views and drive UIKit/AppKit animations with SwiftUI.

5. Accessibility: SwiftUI has enhanced its accessibility features, allowing additional information to be added to built-in accessibility labels without overriding them. There is also support for conditional modifiers and app intent-based accessibility actions.

6. Text Management: SwiftUI now offers programmatic access to text selection within text editing controls, allowing for features like suggested rhymes or text completions.

7. Xcode Previews: A new dynamic linking architecture in Xcode previews allows for faster iteration by switching between preview and build without needing to rebuild the project. The previewable macro simplifies setting up previews by allowing direct use of state.

For more detailed information, you can refer to the session What’s new in SwiftUI (16:18) which covers scrolling enhancements and other updates.