flex组件使用【PopUpButton】

<?xml?version="1.0"?encoding="utf-8"?>
<mx:Application?xmlns:mx="http://www.adobe.com/2006/mxml"?layout="absolute">
????????????<!--creationComplete?当前控件创建完成后触发事件-->
?<mx:PopUpButton?id="popB"?x="132"?y="96"?label="PopUpButton"?creationComplete="initmenu()"/>
?
?<mx:Script>
??<![CDATA[
???import?mx.controls.*;
???import?mx.events.*;
???private?var?mymenu:Menu;
???private?function?initmenu():void{
????mymenu=new?Menu();
????var?dp:Object=[{label:"天气查询"},{label:"信息查询"},{label:"图片查询"}];
????mymenu.dataProvider=dp;
????mymenu.selectedIndex=0;
????mymenu.addEventListener("itemClick",Myitemclick);
????popB.popUp=mymenu;
????popB.label="进入"+mymenu.dataProvider[mymenu.selectedIndex].label;
????
????
???}
???
???private?function?Myitemclick(event:MenuEvent):void{
????var?label:String=event.label.toString();
???????txtinput.text="转移到"+label;
???????popB.label="进入"+label;
???????popB.close();
???????mymenu.selectedIndex=event.index;
???}
???
??]]>
?</mx:Script>
?<mx:TextInput?id="txtinput"?x="246"?y="96"/>
</mx:Application>

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