what is new feature of SwiftUI

New Features of SwiftUI

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

1. Graphics Capabilities:

   • Color Mixing: A new mix modifier on color allows you to blend colors together by a given amount.
   • Custom Shaders: Extended custom shader feature with the ability to precompile shaders before their first use to avoid frame drops caused by lazy shader compilation.

2. Scrolling Enhancements:

   • Scroll View Control: New APIs provide fine-grained 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 when they come into view.
   • Scroll Positions: More scroll positions to programmatically scroll to, such as the top edge, and additional controls like turning off bouncing along a given axis.

3. Accessibility Improvements:

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

4. Text Management:

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

5. Interoperability:

   • Gesture Recognition: Use any built-in or custom UI gesture recognizer in your SwiftUI view hierarchy, even on views not directly backed by UIKit.
   • Animations: Set up animations on UIKit or AppKit views and drive them with SwiftUI, including fully custom animations.

6. Swift 6 Language Mode:

   • Compile-Time Data Race Safety: New Swift Six language mode enables compile-time data race safety.
   • Main Actor Annotation: Views in SwiftUI are now marked with the main actor annotation, meaning all types conforming to View are implicitly isolated to the main actor by default.

7. Custom Containers:

   • Ease of Use: New tools and APIs to make it easier to adopt SwiftUI in your apps, including custom containers and mesh gradients.

8. Xcode Previews:

   • Dynamic Linking Architecture: Switch between a preview and build and run without needing to rebuild your project, increasing iteration speed.
   • State in Previews: Use state directly in previews using the @Previewable macro, eliminating the boilerplate of wrapping your preview content in a view.

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
• SwiftUI essentials

These sessions cover the new features and improvements in SwiftUI comprehensively.