Flex管理多个弹出窗口

    var pop:Panel = (PopUpManager.createPopUp(this, mx.containers.Panel,
false, PopUpManagerChildList.POPUP) as Panel);
访问并改变多个对话框需要有对这些弹出控件的引用，但是PopUpManager.addPopUp 方法并有提供这个引用。因此，你需要使用PopUpManager 类的createPopUp 方法.这个方法返回一个被创建对象的引用，这样可以将这个引用添加到一个数组里面去。在一个大的应用程序里面，这样的数组应该申明成全局可访问的，通过 public static 修饰，同时使用getter 和setter 方法使得所有组件在需要时都可访问生成的弹出物。例如：
createPopUp 方法需要传入一个父容器引用的参数，即生成弹出物的类，和一个Boolean 值来判别弹出得对话框是否为模式化的，然后返回被创建对象的引用

 

Java代码

<mx:Application
xmlns:mx="http://www.adobe.com/2006/mxml"
layout="absolute"
>
    <mx:HBox xmlns:mx="http://www.adobe.com/2006/mxml"
 width=
"600"
height="500"
 creationComplete=
"addDialog()"
>
<mx:Script>
    <![CDATA[
    import
 mx.managers.PopUpManagerChildList;
    import
 mx.controls.LinkButton;
    import
 mx.containers.Panel;
    import
 mx.managers.PopUpManager;
    public
 var popUpArray:Array = 
new
 Array();
    private
 function addDialog():
void
 {
        var pop:Panel = (PopUpManager.createPopUp(this
,
        mx.containers.Panel, false
,
        PopUpManagerChildList.POPUP) as Panel);
        pop.title = "First Pop Up"
;
        pop.y = 100
;
        popUpArray.push(pop);
        pop = (PopUpManager.createPopUp(this
,
        mx.containers.Panel, false
,
        PopUpManagerChildList.POPUP) as Panel);
        pop.title = "Second Pop Up"
;
        pop.y = 200
;
        popUpArray.push(pop);
        pop = (PopUpManager.createPopUp(this
,
        mx.containers.Panel, false
,
        PopUpManagerChildList.POPUP) as Panel);
        pop.title = "Third Pop Up"
;
        pop.y = 300
;
        popUpArray.push(pop);
    }
    private
 function returnDialog():
void
 {
        var link:LinkButton = new
 LinkButton();
        link.label = "Hello"
;
        (popUpArray[selectDialog.selectedIndex] as
        Panel).addChild(link);
    }
    ]]>
</mx:Script>
<mx:ComboBox id="selectDialog"
 change=
"returnDialog()"
>
    <mx:dataProvider>
        <mx:Array>
        <mx:Number>0
</mx:Number>
        <mx:Number>1
</mx:Number>
        <mx:Number>2
</mx:Number>
        </mx:Array>
    </mx:dataProvider>
</mx:ComboBox>
<mx:Panel>
    <mx:LinkButton label="Button"
/>
</mx:Panel>
<mx:Panel>
    <mx:LinkButton label="Button"
/>
</mx:Panel>
</mx:HBox>
</mx:Application>