tourdeflexmodules/src/spark/effects/CrossFadeExample.mxml

<?xml version="1.0"?>
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  this work for additional information regarding copyright ownership.
  The ASF licenses this file to You under the Apache License, Version 2.0
  (the "License"); you may not use this file except in compliance with
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      http://www.apache.org/licenses/LICENSE-2.0

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<s:Module
	xmlns:fx="http://ns.adobe.com/mxml/2009"
	xmlns:mx="library://ns.adobe.com/flex/mx"
	xmlns:s="library://ns.adobe.com/flex/spark">
	
	<s:states>
		<s:State name="default"/>
		<s:State name="flipped"/>
	</s:states>
	
	<s:transitions>
		<s:Transition id="t1" autoReverse="true">
			<s:CrossFade
				target="{holder}" 
				duration="1000" />
		</s:Transition>
	</s:transitions>
	
	<s:Panel title="CrossFade Effect Sample with Transition" width="100%" height="100%">
		
		<s:HGroup verticalCenter="0" horizontalCenter="0">
			<s:VGroup>
				<s:Group id="holder">
					<s:BitmapImage
						source="@Embed('assets/ApacheFlexLogo.png')"
						visible="true" visible.flipped="false"/>
					<s:BitmapImage
						source="@Embed('assets/ApacheFlexLogo.png')"
						visible="false" visible.flipped="true"/>
	
				</s:Group>
				<s:Button id="playButton" left="264" bottom="174"
						  label="Cross Fade"
						  click="currentState = (currentState == 'flipped') ? 'default' : 'flipped'" y.default="-33"/>
			</s:VGroup>
			<mx:Spacer width="50"/>
			<s:VGroup width="100%" >
				<s:Label text="Cross Fade Sample" fontSize="18"/>
				<s:Label width="250" verticalAlign="justify" 
						 text="The CrossFade effect performs a bitmap transition effect by running a crossfade between the first and second bitmaps. 
						 The crossfade blends the two bitmaps over the duration of the animation."/>
			</s:VGroup>
		</s:HGroup>
		
	</s:Panel>	
</s:Module>