what is new in SwiftUI in 2024

In 2024, SwiftUI has introduced several new features and enhancements:

1. Graphics Capabilities:

   • New mix modifier on color to blend colors together.
   • Extended custom shader feature with precompilation to avoid frame drops.

2. Scroll View Enhancements:

   • Fine-grained control over scroll views.
   • New onScrollGeometryChange to react to changes in content, offsets, and content size.
   • Ability to detect view visibility changes due to scrolling.
   • More programmatic control over scroll positions and additional customization options like turning off bouncing along a given axis and programmatically stopping scrolling.

3. Interoperability:

   • Improved integration with UIKit and AppKit, including gesture recognition and animations.
   • Ability to set up animations on UIKit or AppKit views and drive them with SwiftUI.

4. Custom Containers and Mesh Gradients:

   • Introduction of custom containers and mesh gradients for more flexible UI designs.

5. Swift 6 Language Mode:

   • New compile-time data race safety.
   • Views in SwiftUI are now marked with the @MainActor annotation by default.

6. Previews and Customizations:

   • Xcode Previews now use a dynamic linking architecture for smoother workflow.
   • New @Previewable macro to use dynamic properties like state directly in previews.
   • Custom hover effects for visionOS and new options to customize window behavior and styling in macOS.
   • New text renderer API for advanced visual effects and animations.

7. Platform-Specific Enhancements:

   • New TabView APIs for iPadOS and tvOS.
   • Enhanced document launch experience.
   • New windowing and input capabilities for macOS and visionOS.
   • Fine-tuning live activities on watchOS.
   • New capabilities in volumes and immersive spaces on visionOS.

For a detailed overview, you can watch the session What’s new in SwiftUI.