what are new apis in swiftUI

New APIs in SwiftUI

SwiftUI has introduced several new APIs and enhancements this year. Here are some of the key updates:

1. Graphics Capabilities:

   • Mix Modifier on Color: Allows blending colors together by a given amount.
   • Custom Shader Precompilation: Enables precompiling shaders before their first use to avoid frame drops caused by lazy shader compilation.

2. Scroll View Enhancements:

   • On Scroll Geometry Change: React to changes in content, offsets, content size, and more.
   • Visibility Detection: Detect when a view's visibility changes due to scrolling, useful for creating experiences like auto-playing videos.
   • Programmatic Control: More control over scroll positions, turning off bouncing along a given axis, programmatically stopping scrolling, and controlling content alignment.

3. Text and Selection Management:

   • Programmatic Text Selection: Access and control text selection within text editing controls.

4. Interoperability:

   • UIKit and AppKit Integration: Improved interoperability with UIKit and AppKit, including gesture recognition and animations.
   • HostingViewController: Embed SwiftUI views into UIKit or AppKit view hierarchies.

5. Accessibility:

   • Conditional Modifier Support: New accessibility features such as conditional modifier support and app intent-based accessibility actions.

6. Xcode Previews:

   • Dynamic Linking Architecture: Switch between a preview and build and run without needing to rebuild the project.
   • Previewable Macro: Use state directly in previews, eliminating the need for boilerplate code.

7. Custom Containers and Mesh Gradients:

   • Custom Containers: New ways to create custom containers.
   • Mesh Gradients: Enhanced gradient capabilities for more complex visual effects.

8. Swift 6 Language Mode:

   • Compile Time Data Race Safety: New language mode that enables compile-time data race safety.
   • Main Actor Annotation: Views in SwiftUI are now marked with the main actor annotation, ensuring they are implicitly isolated to the main actor by default.

For more detailed information, you can refer to the following sessions:

• What’s new in SwiftUI (00:15:56)
• Platforms State of the Union (00:39:22)

Relevant Sessions

1. What’s new in SwiftUI
2. Platforms State of the Union
3. SwiftUI essentials
4. What’s new in UIKit
5. What’s new in watchOS 11