Version-sensitive. Every API name, SDK gate and browser-support claim below was verified on 2026-09-08 against primary sources. What against, and when, is in . If that date is old, re-verify before acting on a version number. SwiftUI Motion SwiftUI animation core. Loaded for any SwiftUI project (iOS, macOS, multi-target Apple). Concise rules here. Deep-dive in . Pair with (foundation) and (touch UX). --- Animation API decision tree | Need | API | |---|---| | Single value over time | or | | Multiple coordinated states | (iOS 17+) | | Time-based keyframes | (iOS 17+) | | Custom property animati…