An abstract superclass for defining motion-based modifiers for views.
SDKs
- iOS 7.0+
- Mac Catalyst 13.0+
- tvOS 9.0+
Framework
- UIKit
Declaration
@interface UIMotionEffect : NSObject
Overview
Subclasses of UIMotion are responsible for defining the behavior to apply to a view when motion is detected. They do this by overriding the key method and returning one or more key paths representing the view properties to modify.
Subclassing Notes
This class is abstract and cannot be instantiated directly. You can use the UIInterpolating class to implement effects or you can subclass and implement your own effects. If you subclass, your subclass must conform to the NSCopying and NSCoding protocols and must implement the key method.