what is new in swiftui

What's New in SwiftUI

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

1. Graphics Capabilities:

   • Color Mixing: A new mix modifier on Color allows blending colors together by a specified amount.
   • Custom Shaders: Extended to allow precompiling shaders before their first use, avoiding frame drops caused by lazy shader compilation.

2. Scroll View Enhancements:

   • Fine-Grained Control: New APIs provide more control over scroll views, including reacting to changes in content, offsets, and content size.
   • Visibility Detection: Detect when a view's visibility changes due to scrolling, enabling experiences like auto-playing videos.
   • Scroll Positions: More scroll positions are available to programmatically scroll to, such as the top edge.
   • Content Alignment: Control over content alignment and the ability to turn off bouncing along a given axis.

3. Swift 6 Language Mode:

   • Data Race Safety: Compile-time data race safety.
   • Main Actor Annotation: Views in SwiftUI are now marked with the main actor annotation, isolating them to the main actor by default.

4. Interoperability:

   • UIKit and AppKit Integration: Gesture recognition and animations have been factored out, allowing for deep integration with UIKit and AppKit views.
   • Custom Animations: Set up animations on UIKit or AppKit views and drive them with SwiftUI.

5. Custom Containers and Mesh Gradients:

   • Custom Containers: New features for creating custom containers.
   • Mesh Gradients: Support for mesh gradients to create more complex and visually appealing designs.

6. Accessibility:

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

7. Xcode Previews:

   • Dynamic Linking Architecture: Allows switching between preview and build without needing to rebuild the project.
   • Previewable Macro: Use state directly in previews, eliminating boilerplate code.

8. Text Management:

   • Text Selection: Programmatic access to and control of text selection within text editing controls.

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

Relevant Sessions

1. What’s new in SwiftUI
2. Platforms State of the Union
3. SwiftUI essentials

These sessions provide a comprehensive look at the new features and improvements in SwiftUI.