Flex4 Alert PopupManager 示例

Flex4中的PopupManager类似模仿桌面用户界面的弹出窗口，也有些像JS中的弹出界面可操作，底层界面灰暗并禁用掉。

先创建一个需要被弹出的窗口文件，代码如下：

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<?xml version="1.0" encoding="utf-8"?>  
<mx:TitleWindow xmlns:fx="http://ns.adobe.com/mxml/2009"  
  xmlns:s="library://ns.adobe.com/flex/spark"  
  xmlns:mx="library://ns.adobe.com/flex/mx"  
  layout="vertical" title="弹出窗口"  
  width="600" height="400" showCloseButton="true"  
  close="PopUpManager.removePopUp(this);">  
  <fx:Script>  
    <![CDATA[ 
      import mx.managers.PopUpManager; 
    ]]>  
  </fx:Script>  
  <s:Group width="100%">  
    <s:Label text="2014-5-14 09:28:26"/>  
  </s:Group>  
  <s:TextArea id="textArea"  width="100%" height="100%"/>  
</mx:TitleWindow>  

测试程序如下：

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<?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"  
  width="100%" height="100%"  
  initialize="init()">  
<fx:Script><![CDATA[ 
  import mx.events.CloseEvent; 
  import mx.controls.Alert; 
  import mx.managers.PopUpManager; 
 
  private function showAlert(event:MouseEvent):void { 
    Alert.show('这是一个弹出窗口!','弹出窗口测试'); 
  } 
 
  private function showPopUp(event:MouseEvent):void { 
    //PopUpManager 相关初始化工作，先创建，调整位置，安排监听事件。 
    var titleWindow:TestTitleWindow1 = TestTitleWindow1( 
      PopUpManager.createPopUp(this,TestTitleWindow1,true)); 
    titleWindow.x = 50; 
    titleWindow.y = 50; 
    titleWindow.addEventListener(CloseEvent.CLOSE,onCloseTTW); 
  } 
  //弹出窗口关闭时间函数 
  private function onCloseTTW(event:CloseEvent):void { 
    var ttw:TestTitleWindow1 = TestTitleWindow1(event.target); 
    TextArea1.text = ttw.textArea.text; 
  } 
]]></fx:Script>  
  <s:layout>  
    <s:VerticalLayout paddingLeft="10" paddingTop="10"  
      paddingRight="10" paddingBottom="10"/>  
  </s:layout>  
  <s:Button label="测试Alert" click="showAlert(event)"/>  
  <s:Button label="测试TestTitleWindow" click="showPopUp(event)"/>  
  <s:Label text="TestTitleWindow:"  
    fontWeight="bold"/>  
  <s:TextArea id="TextArea1" width="100%"  
    height="100%"/>  
</s:Application>