UIRotationGestureRecognizer
A continuous gesture recognizer that interprets rotation gestures involving two touches.
Declaration
@MainActor class UIRotationGestureRecognizerMentioned in
Overview
UIRotationGestureRecognizer is a concrete subclass of UIGestureRecognizer.
The user must press two fingers on a view while rotating it. When the user moves the fingers opposite each other in a circular motion, the underlying view rotates in a corresponding direction and speed.
Rotation is a continuous gesture. It begins when the user moves the two fingers enough to create a rotation gesture. The gesture changes when a finger moves while both fingers remain touching. It ends when the user lifts both fingers. At each stage in the gesture, the gesture recognizer sends its action message.
Topics
Interpreting the gesture
See Also
Standard gestures
Handling UIKit gesturesCoordinating multiple gesture recognizersAdopting hover support for Apple PencilSupporting gesture interaction in your appsUIHoverGestureRecognizerUILongPressGestureRecognizerUIPanGestureRecognizerUIPinchGestureRecognizerUIScreenEdgePanGestureRecognizerUISwipeGestureRecognizerUITapGestureRecognizer