Class: CAPropertyAnimation

Inherits:
CAAnimation show all

Overview

CAPropertyAnimation is an abstract subclass of CAAnimation for creating animations that manipulate the value of layer properties. The property is specified using a key path that is relative to the layer using the animation.

Direct Known Subclasses

CABasicAnimation, CAKeyframeAnimation

Instance Attribute Summary (collapse)

Attributes inherited from CAAnimation

#delegate, #removedOnCompletion, #timingFunction

Class Method Summary (collapse)

Methods inherited from CAAnimation

animation, defaultValueForKey:, #shouldArchiveValueForKey:

Methods inherited from NSObject

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Constructor Details

This class inherits a constructor from NSObject

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class NSObject

Instance Attribute Details

- (Boolean) additive

Determines if the value specified by the animation is added to the current render tree value to produce the new render tree value. If YES, the value specified by the animation will be added to the current render tree value of the property to produce the new render tree value. The addition function is type-dependent, e.g. for affine transforms the two matrices are concatenated. The default is NO.

Returns:

  • (Boolean)

- (Boolean) cumulative

Determines if the value of the property is the value at the end of the previous repeat cycle, plus the value of the current repeat cycle. If YES, then the value of the property is the value at the end of the previous repeat cycle, plus the value of the current repeat cycle. If NO, the value of the property is simply the value calculated for the current repeat cycle. The default is NO.

Returns:

  • (Boolean)

- (String) keyPath

Specifies the key path the receiver animates. The key path is relative to the layer the receiver is attached to.

Returns:

- (CAValueFunction) valueFunction

An optional value function that is applied to interpolated values. If the valueFunction property is not nil, the function is applied to the values interpolated by the animation as they are applied to the presentation layer. Defaults to nil.

Returns:

Class Method Details

+ (Object) animationWithKeyPath(keyPath)

Creates and returns an CAPropertyAnimation instance for the specified key path.

Parameters:

  • keyPath (String)

    The key path of the property to be animated.

Returns: