flex day 9 组件的特效

<s:transitions>

一个 Transition 对象 Array，其中的每个 Transition 对象都定义一组效果，用于在视图状态发生更改时播放。

<s:fade>淡入淡出效果可设置组件的 alpha 属性的动画效果（从透明到不透明或从不透明到透明

<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" 
			   xmlns:s="library://ns.adobe.com/flex/spark" 
			   xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600">
	<fx:Declarations>
		<!-- 将非可视元素（例如服务、值对象）放在此处 -->
		<s:Animate id="mover" target="{button}">
			<s:SimpleMotionPath property="x" valueFrom="0" valueTo="100"/>
			<s:SimpleMotionPath property="y" valueTo="100"/>
			<s:SimpleMotionPath property="width" valueBy="20"/>
		</s:Animate>
		<s:Parallel id="transformer" target="{button}">
			<s:Move xFrom="50" xTo="150" autoCenterTransform="true"/>
			<s:Rotate angleFrom="0" angleTo="90" autoCenterTransform="true"/>
			<s:Scale scaleXFrom="1" scaleXTo="2" autoCenterTransform="true"/>
		</s:Parallel>


	</fx:Declarations>
	<s:states>
		<s:State name="state1"/>
		<s:State name="state2"/>
	</s:states>
	<s:transitions>
		<s:Transition>
			<s:Fade targets="{[button0, button1, button2]}"/>
		</s:Transition>
	</s:transitions>
	<s:Button id="button" x="50" y="100" label="transforme" click="transformer.play()"/>
	
	<s:Button id="button0" label="Visible" x="100" y="0"
			  visible="true" visible.state2="false"/>
	<s:Button id="button1" label="Alpha" x="100" y="50"
			  alpha="1" alpha.state2="0.5"/>
	<s:Button id="button2" label="Existence" x="100" y="100"
			  includeIn="state2"/>
	<s:Button label="Toggle State"
			  click="currentState=(currentState=='state1')?'state2':'state1'"/>
</s:Application>