(Preview)
Package | spark.effects.animation |
Class | public class Keyframe |
Inheritance | Keyframe ![]() |
Language Version: | ActionScript 3.0 |
Product Version: | Flex 4 |
Runtime Versions: | Flash Player 10, AIR 1.5 |
The collection of keyframes for an effect is called the effect's motion path. A motion path can define any number of keyframes. The effect then calculates the value of the property by interpolating between the values specified by two key frames.
Use the MotionPath class to hold the collection of Keyframe objects that represent the motion path of the effect. The MotionPath class specifies the name of the property on the target, and the collection of Keyframes objects specify the values of the property at different times during the effect.
MXML Syntax
The <s:Keyframe>
tag
inherits the tag attributes of its superclass,
and adds the following tag attributes:
<s:Keyframe id="ID" easier="Linear" time="val" value="val" valueBy="val" />
More examples
Related API Elements
Public Properties
Property | Defined By | ||
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![]() | constructor : Object
A reference to the class object or constructor function for a given object instance. | Object |
Public Methods
Method | Defined By | ||
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Indicates whether an object has a specified property defined. | Object | |
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Indicates whether an instance of the Object class is in the prototype chain of the object specified
as the parameter. | Object | |
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Indicates whether the specified property exists and is enumerable. | Object | |
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Sets the availability of a dynamic property for loop operations. | Object | |
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Returns the string representation of this object, formatted according to locale-specific conventions. | Object | |
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Returns the string representation of the specified object. | Object | |
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Returns the primitive value of the specified object. | Object |
Property Detail
Constructor Detail
Method Detail
Examples How to use this example
KeyFrameEffectExample.mxml
<?xml version="1.0"?> <!-- Simple example to demonstrate the s:Keyframe and s:MotionPath classes. --> <s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:mx="library://ns.adobe.com/flex/mx" xmlns:s="library://ns.adobe.com/flex/spark"> <fx:Declarations> <fx:Vector id="kf" type="spark.effects.animation.MotionPath"> <s:MotionPath property="scaleX"> <s:Keyframe time="250" value="0.5"/> <s:Keyframe time="500" value="1.0"/> <s:Keyframe time="750" value="0.5"/> <s:Keyframe time="1000" value="1.0"/> <s:Keyframe time="1250" value="0.5"/> <s:Keyframe time="1500" value="1.0"/> </s:MotionPath> <s:MotionPath property="scaleY"> <s:Keyframe time="250" value="0.5"/> <s:Keyframe time="500" value="1.0"/> <s:Keyframe time="750" value="0.5"/> <s:Keyframe time="1000" value="1.0"/> <s:Keyframe time="1250" value="0.5"/> <s:Keyframe time="1500" value="1.0"/> </s:MotionPath> </fx:Vector> <s:Animate id="shrinkEffect" motionPaths="{kf}" target="{myImage}"/> </fx:Declarations> <s:Panel id="examplePanel" title="Keyframe and MotionPath Effect Example" width="75%" height="75%"> <s:layout> <s:VerticalLayout paddingTop="10" paddingLeft="10"/> </s:layout> <!-- Directions --> <s:VGroup id="detailsBox" width="50%" left="0"> <s:Label width="99%" color="blue" text="Click the Adobe logo to watch the effect."/> </s:VGroup> <mx:Image id="myImage" source="@Embed(source='assets/logo.jpg')" click="shrinkEffect.end();shrinkEffect.play();"/> </s:Panel> </s:Application>
Wed Nov 21 2018, 06:34 AM -08:00