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iOS18

A collection of 3 issues

onScrollGeometryChange: Track Scroll Position in SwiftUI Without Tanking Performance

For years, reading a scroll view's offset in SwiftUI meant the same awkward dance: drop a GeometryReader into the content, publish the frame through a PreferenceKey, define a custom coordinate space, and read it all back out somewhere up the tree. It worked, but it added phantom views

Per-Glyph Text Animation in SwiftUI with TextRenderer

Text animation in iOS has always been awkward. To animate individual characters — a wave effect, a staggered entrance, per-letter color shifts — you either dropped into UIKit with NSTextStorage and CALayer gymnastics, or built a fragile HStack of individual Text views and lost kerning and line-wrapping in the process.

ContainerValues: Per-Item Customization in SwiftUI Containers

If you've ever needed one child view in a SwiftUI container to look or behave differently from its siblings, you've probably reached for @Environment — and paid the price. Environment values propagate to every descendant in the subtree, not just the direct children of your container. Set