whats new in swiftui 2024

In 2024, SwiftUI introduced several new features and improvements to enhance app development across Apple platforms. Here are some of the highlights:

1. Graphics Capabilities: SwiftUI now includes a new mix modifier on colors, allowing for beautiful color blending. The custom shader feature has been extended to precompile shaders, reducing frame drops caused by lazy shader compilation.

2. Scrolling Enhancements: Developers have more control over scroll views with new APIs, such as onScrollGeometryChange, which allows for performant reactions to changes in content offsets and sizes. You can also detect when a view's visibility changes due to scrolling, enabling experiences like auto-playing videos.

3. Swift 6 Language Mode: This new mode provides compile-time data race safety. SwiftUI's APIs have been improved to make it easier to adopt this new language mode, with views evaluated on the main actor by default.

4. Interoperability: SwiftUI has improved interoperability with UIKit and AppKit, allowing for animations to be set up on these views and driven by SwiftUI. Gesture recognition has been factored out of UIKit, enabling the use of gesture recognizers in SwiftUI view hierarchies.

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

6. Platform Integration: SwiftUI continues to enhance its integration across platforms, with improvements in windowing and input capabilities for macOS and visionOS, as well as new APIs for TabView and document-based apps.

For more detailed information, you can refer to the session "What’s new in SwiftUI" (16:18) which covers scrolling enhancements, and the session "Platforms State of the Union" (35:23) for a broader overview of SwiftUI's role in Apple's ecosystem.