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.