Swiftui update in ios 17
Generated on 10/3/2024
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In iOS 17, SwiftUI has received several updates and enhancements. Here are some of the key updates:
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State-Driven Views: SwiftUI continues to emphasize state-driven views, which automatically update the UI when the view state changes. This helps eliminate boilerplate code and update bugs. SwiftUI maintains a representation of the user interface behind the scenes, updating its outputs as data changes.
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Animations: SwiftUI builds on data-driven updates to provide animations. You can wrap state changes with animations, and SwiftUI will apply default or custom transitions. This allows for smooth and customizable animations in your app.
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Graphics Capabilities: New graphics capabilities include a mix modifier on colors, allowing you to blend colors by a given amount. Custom shaders can now be precompiled to avoid frame drops caused by lazy shader compilation.
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Scroll View Enhancements: There are new APIs for scroll views, providing fine-grained control over their state. You can react to changes in content offsets, content size, and more, enabling features like auto-playing videos when a view's visibility changes due to scrolling.
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Interoperability with UIKit: SwiftUI and UIKit interoperability has been enhanced, making it easier to use them interchangeably. You can now use SwiftUI animation types to animate UIKit views, and gesture recognition has been factored out of UIKit for use in SwiftUI view hierarchies.
For more detailed information, you can refer to the session What’s new in SwiftUI (16:18) which covers scrolling enhancements and other updates.
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