what's new in swiftUI ?

What's New in SwiftUI

SwiftUI has introduced a variety of new features and improvements this year. Here are some of the highlights:

1. Graphics Capabilities:

   • Color Mixing: A new mix modifier on Color allows blending colors by a given amount.
   • Custom Shaders: Extended to allow precompiling shaders before their first use to avoid frame drops.

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 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. Accessibility:

   • Built-in Accessibility Labels: Add additional accessibility information without overriding the framework-provided label.
   • Conditional Modifier Support: New accessibility features such as conditional modifier support and app intent-based accessibility actions.

4. Xcode Previews:

   • Dynamic Linking Architecture: Switch between a preview and build and run without needing to rebuild the project.
   • State in Previews: Use state directly in previews with the previewable macro, reducing boilerplate code.

5. Text Management:

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

6. Swift 6 Language Mode:

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

7. Interoperability:

   • Gesture Recognition: Use any built-in or custom UI gesture recognizer in SwiftUI view hierarchy.
   • Animations: Set up animations on UIKit or AppKit views and drive them with SwiftUI, including fully custom animations.

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

Relevant Sessions

• What’s new in SwiftUI
• Platforms State of the Union

Feel free to explore these sessions for more in-depth information on the new features and improvements in SwiftUI.