Apply Filter with ActionScript
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<!-- styles/ApplyFilterAS.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:Script>
import spark.filters.*;
private var dsf:DropShadowFilter;
public function toggleFilter():void {
trace(label1.filters.length);
if (label1.filters.length == 0) {
/*
The first four properties of the DropShadowFilter constructor are
distance, angle, color, and alpha.
*/
dsf = new DropShadowFilter(5,30,0x000000,.8);
label1.filters = [dsf];
} else {
label1.filters = null;
}
}
</fx:Script>
<s:VGroup>
<s:Label id="label1" text="ActionScript-applied filter." />
<s:Button id="b1" label="Toggle Filter" click="toggleFilter()" />
</s:VGroup>
</s:Application>
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