swiftui-gestures

Drag gestures in SwiftUI use DragGesture with onChanged and onEnded handlers to track movement. Attach it to a view with .gesture(DragGesture()...), manage state with GestureState for temporary values, and reset state when the gesture ends for clean state management.

Yes, SwiftUI supports gesture composition through simultaneous, sequenced, and exclusive patterns. Use .simultaneously(with:) to recognize gestures together, chain gestures for ordering, or use exclusive composition when only one gesture should activate to avoid conflicts.

Accessible gestures require adding accessibility labels and hints to views, using custom accessibility actions for complex interactions, and testing with VoiceOver on iOS and macOS. Ensure tap, drag, and long-press gestures have clear accessibility descriptions for screen reader users.

SwiftUI provides tap, drag, long-press, magnification, and rotation gestures. Tap and long-press work consistently across platforms, while drag, magnification, and rotation adapt to input methods—touch on iOS, trackpad or mouse on macOS, and hand tracking on visionOS.

Gesture state updates fail when using wrong semantics: use GestureState for temporary state during recognition and onEnded for permanent changes. Avoid updating @State directly inside gesture handlers; GestureState automatically resets when the gesture ends, preventing stale values.

Combine tap and drag using simultaneous or exclusive composition. Use .simultaneously(with:) if both should work together, or exclusive composition if only one should activate. Manage separate state for each gesture and reset it on gesture completion to preserve distinct behaviors.