Animate Drop Shadow Filter
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<!-- behaviors\SparkAnimateDropShadowFilter.mxml -->
<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>
<s:DropShadowFilter id="myDSF" color="0x0000FF"
distance="5" angle="315" />
<s:AnimateFilter id="myFilter" target="{myB2}"
repeatCount="0" duration="500" repeatBehavior="reverse"
bitmapFilter="{new spark.filters.DropShadowFilter()}">
<s:SimpleMotionPath property="color" valueFrom="0"
valueTo="0x0000FF" />
<s:SimpleMotionPath property="distance" valueFrom="0"
valueTo="10" />
<s:SimpleMotionPath property="angle" valueFrom="270"
valueTo="360" />
</s:AnimateFilter>
</fx:Declarations>
<s:Button id="myB1" x="50" y="50" label="Show a DropShadowFilter"
filters="{[myDSF]}" />
<s:Button id="myB2" x="50" y="95" label="Animate a DropShadowFilter"
click="myFilter.end();myFilter.play();" />
</s:Application>
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