What’s new in SwiftUI for iOS 18?

Generated on 7/31/2024

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In iOS 18, SwiftUI introduces several new features and improvements. Here are some of the highlights:

  1. Graphics Capabilities:

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

  2. Scroll View Enhancements:

    • Fine-grained control over scroll views with onScrollGeometryChange.
    • Detecting view visibility changes due to scrolling.
    • More programmatic control over scroll positions and content alignment.

  3. Accessibility:

    • Improved APIs for adding accessibility information without overriding default labels.
    • New accessibility features like conditional modifier support and app intent-based actions.

  4. Xcode Previews:

    • New dynamic linking architecture for faster iteration.
    • Easier setup with the previewable macro to use state directly in previews.

  5. Text Management:

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

  6. Swift 6 Language Mode:

    • Compile-time data race safety.
    • Views in SwiftUI are now implicitly isolated to the main actor by default.

  7. Interoperability:

    • Gesture recognition and animations can now be shared between UIKit and SwiftUI.

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

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