Topic

WWDC

A collection of 2 issues

Synchronizing ScrollViews using SwiftUI

Synchronizing the scrolling positions between 2 (or more) ScrollViews in SwiftUI is a fairly common problem. There are a few questions and answers online covering it. Some solutions are passable, but none are satisfying. With the release of iOS 18.0 and macOS 15.0, SwiftUI has gained a few

SwiftUI's New Geometry Modifiers & Best Practices: onGeometryChange, onScrollGeometryChange, and More

SwiftUI has recently introduced a family of geometry observation APIs: onGeometryChange, onScrollGeometryChange, and onScrollPhaseChange. The former is back deployed all the way back to iOS 16 and macOS 13 Ventura. These new modifiers are a pretty big deal in a few ways.