whats is new in swiftui

In the latest WWDC, several new features and improvements were introduced for SwiftUI. Here are some of the highlights:

1. Graphics Capabilities: SwiftUI now includes new graphics capabilities, such as a mix modifier on colors that allows blending with another color by a specified amount. Additionally, custom shaders can now be precompiled to avoid frame drops caused by lazy shader compilation.

2. Scroll View Enhancements: There are new APIs for more granular control over scroll views. You can now react to changes in content, offsets, and content size with the onScrollGeometryChange feature. This allows for creating experiences like auto-playing videos when a view's visibility changes due to scrolling.

3. Swift 6 Language Mode: The new Swift 6 language mode introduces compile-time data race safety. SwiftUI has improved its APIs to facilitate adopting this new language mode, with views now evaluated on the main actor by default.

4. Interoperability: SwiftUI has enhanced interoperability with UIKit and AppKit, allowing for animations to be set up on these views and driven by SwiftUI, including fully custom animations.

5. Custom Containers and Mesh Gradients: New features like custom containers and mesh gradients have been added, providing more flexibility and customization options for developers.

6. Platform Integration: SwiftUI continues to be a powerful tool for building apps across all Apple platforms, with improvements in previews, customizations, and interoperability.

For more detailed information, you can refer to the sessions What’s new in SwiftUI and Platforms State of the Union.