What is new on SwiftUI for IOS 18?

Generated on 8/5/2024

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In iOS 18, SwiftUI introduces several new features and improvements:

  1. Graphics Capabilities:

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

  2. Scroll View Enhancements:

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

  3. New TabView Syntax:

    • Easier to catch common errors at build time.
    • New syntax to declare a tab struct with title, image, and content view.
    • Programmatic selection of tabs.

  4. Swift 6 Language Mode:

    • Compile-time data race safety.
    • Views in SwiftUI are now marked with the main actor annotation.

  5. Custom Containers and Mesh Gradients:

    • New APIs for custom containers.
    • Beautiful mesh gradients for more visually appealing designs.

  6. Improved Interoperability:

    • Gesture recognition factored out of UIKit for use in SwiftUI.
    • Animations can be set up on UIKit or AppKit views and driven by SwiftUI.

  7. Xcode Previews:

    • New dynamic linking architecture for smoother workflow.
    • Previewable macro to use dynamic properties like state directly in previews.

For more details, you can check out the session "What’s new in SwiftUI" (00:00:07).

Relevant Sessions

  1. What’s new in SwiftUI
  2. Platforms State of the Union
  3. Elevate your tab and sidebar experience in iPadOS
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