flex_监听状态事件(视图状态);

<?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="1024" minHeight="768" pageTitle="TheStudioOfCenyebao" ?? ??? ??? ??? currentStateChanging="log('=>change befor_' + currentState)" ?? ??? ??? ??? currentStateChange="log('=>change after_' + currentState + 'n')"> ?? ? ?? ?<!-- Demo_ 监听状态事件(视图状态) --> ?? ?<!-- 说明：作为视图状态的结尾部分，让我们对状态事件进行简单处理 --> ?? ? ?? ?<fx:Script> ?? ??? ?<![CDATA[ ?? ??? ??? ? ?? ??? ??? ?/** ?? ??? ??? ? * 日志输出； ?? ??? ??? ? */ ?? ??? ??? ?protected function log(text:String):void{ ?? ??? ??? ??? ?logElement.text += text + "n"; ?? ??? ??? ?} ?? ??? ?]]> ?? ?</fx:Script> ?? ? ?? ?<s:states> ?? ??? ?<s:State name="orange" enterState="log('=>orange enter.')" exitState="log('=>orange exit.')"/> ?? ??? ?<s:State name="black" enterState="log('=>black enter')" exitState="log('=>black exit.')"/> ?? ?</s:states> ?? ? ?? ?<!--view--> ?? ?<s:VGroup width="250" height="230" verticalCenter="0" horizontalCenter="0"> ?? ??? ?<s:Button label.orange="Black" label.black="Orange" click.orange="currentState='black'" ?? ??? ??? ??? ?? click.black="currentState='orange'" width="100%"/> ?? ??? ?<s:Rect width="100%" height="80"> ?? ??? ??? ?<s:fill> ?? ??? ??? ??? ?<s:SolidColor color.black="#000000" color.orange="#de7800"/> ?? ??? ??? ?</s:fill> ?? ??? ?</s:Rect> ?? ??? ?<s:TextArea id="logElement" width="100%" height="100%"/> ?? ?</s:VGroup> </s:Application>