Flex组件通信

Question

我使用从不同的MXML文件加载的弹出窗口：

private function showAddPopUp():void{
    addPopUP = PopUpManager.createPopUp(this, add_popup, true);
    PopUpManager.centerPopUp(addPopUP);
}

该文件如下所示(add_popus.mxml)：

<mx:VBox width="100%" height="100%" paddingLeft="5" paddingTop="5" paddingRight="5" paddingBottom="5">
    <mx:Label text="Enter name of the source:" />
    <mx:TextInput width="100%" id="textName" />
    <mx:Label text="Enter URL for the source:" />
    <mx:TextInput width="100%" id="textURL" />
    <mx:HBox width="100%">
        <mx:Button label="OK" id="buttonOK" textAlign="center"/>
        <mx:Button label="Cancel" id="buttonCancel" click="PopUpManager.removePopUp(this)" textAlign="center"/>
    </mx:HBox>
</mx:VBox>

​

问题是，在弹出窗口中单击buttonOK之后，我不知道如何将文本输入中的文本值传递给主组件。我尝试了自定义事件，但它不起作用。文档不是很有帮助。我将感谢您的任何想法。

完整代码在这里：http://github.com/jbajor/Newspapair

Answer 1

从按钮单击中调度事件

<!-- AddPopUp.mxml -->
<mx:Button label="OK" id="buttonOK" textAlign="center" 
    click="dispatchEvent(new Event(POPUP_DONE))"/>
<mx:Script>
<![CDATA[
    public static const POPUP_DONE:String = "popupDone";
]]>
</mx:Script>

然后在另一节课上听。event.target将为您提供弹出窗口的句柄。

private function showAddPopUp():void
{
    var addPopUp:AddPopup = PopUpManager.createPopUp(this, add_popup, true);
    addPopUp.addEventListener(AddPopUp.POPUP_DONE, onPopupDone);
    PopUpManager.centerPopUp(addPopUP);
}
private function onPopupDone(e:Event):void
{
    var popup:AddPopUp = AddPopUp(e.target);
    trace(popup.textName.text);
}