Flex中的弹出窗口(mx.managers.PopUpManager) (收集)

flex PopUpManager类

　　PopUpManager 类 PopUpManager 类ActionScript 类名称mx.managers.PopUpManager

　　PopUpManager 类的方法摘要

　　PopUpManager.createPopUp() 创建弹出窗口。

　　PopUpManager.deletePopUp() 删除由调用PopUpManager.createPopUp() 而创建的弹出窗口。

　　PopUpManager.createPopUp(parent, class, modal [, initobj, outsideEvents])

　　参数:parent 对弹出窗口所基于的窗口的引用。

　　class 对要创建的对象的类的引用。

　　modal 一个布尔值，它指示该窗口是(true) 否(false) 是模式

　　initobj 一个包含初始化属性的对象。此参数是可选的。

　　outsideEvents 一个布尔值，指示在用户单击窗口以外的区域时是(true) 否(false) 触发事件。此参数是可选的。


1.PopUpManager--createPopUp与addPopUp区别

  createPopUp:是上来先设置好弹出方式，然后在new出来一个TitleWindow的对象，然后通过此对象设置他的变现形式。

addPopUp：是先new出来对象，设置好表现形式，然后在选择弹出来的方式。

一定要注意new对象与弹出方式的先后顺序。

addPopUp代码

1.<?xml version="1.0" encoding="utf-8"?>   
2.<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"  
3.        layout="vertical"  
4.        verticalAlign="middle"  
5.        backgroundColor="white"  
6.        creationComplete="init()">   
7.  
8.    <mx:Script>   
9.        <![CDATA[   
10.            import mx.controls.Label;   
11.            import mx.events.CloseEvent;   
12.            import mx.containers.TitleWindow;   
13.            import mx.managers.PopUpManager;   
14.  
15.            private var titleWindow:TitleWindow;   
16.  
17.            private function init():void {   
18.                var label:Label = new Label();   
19.                label.text = "Hello world";   
20.  
21.                titleWindow = new TitleWindow();   
22.                titleWindow.title = "Custom title";   
23.                titleWindow.showCloseButton = true;   
24.                titleWindow.width = 240;   
25.                titleWindow.height = 180;   
26.                titleWindow.addEventListener(CloseEvent.CLOSE, titleWindow_close);   
27.                titleWindow.addChild(label);   
28.  
29.                PopUpManager.addPopUp(titleWindow, this, true);   
30.                PopUpManager.centerPopUp(titleWindow);   
31.            }   
32.  
33.            private function titleWindow_close(evt:CloseEvent):void {   
34.                PopUpManager.removePopUp(titleWindow);   
35.            }   
36.        ]]>   
37.    </mx:Script>   
38.  
39.    <mx:Button label="Launch TitleWindow" click="init()" />   
40.  
41.</mx:Application>  
createPopUp代码：

1.<?xml version="1.0" encoding="utf-8"?>   
2.<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"  
3.        layout="vertical"  
4.        verticalAlign="middle"  
5.        backgroundColor="white"  
6.        creationComplete="init()">   
7.  
8.    <mx:Script>   
9.        <![CDATA[   
10.            import mx.managers.PopUpManagerChildList;   
11.            import mx.controls.Label;   
12.            import mx.events.CloseEvent;   
13.            import mx.containers.TitleWindow;   
14.            import mx.managers.PopUpManager;   
15.  
16.            private var titleWindow:TitleWindow;   
17.  
18.            private function init():void {   
19.                var label:Label = new Label();   
20.                label.text = "Hello world";   
21.                titleWindow = new TitleWindow();   
22.                titleWindow = TitleWindow(PopUpManager.createPopUp(this,TitleWindow,true));   
23.                titleWindow.title = "Custom title";   
24.                titleWindow.showCloseButton = true;   
25.                titleWindow.width = 240;   
26.                titleWindow.height = 180;   
27.                titleWindow.addChild(label);   
28.                titleWindow.addEventListener(CloseEvent.CLOSE, titleWindow_close);   
29.                               PopUpManager.centerPopUp(titleWindow);   
30.            }   
31.  
32.            private function titleWindow_close(evt:CloseEvent):void {   
33.                PopUpManager.removePopUp(titleWindow);   
34.            }   
35.        ]]>   
36.    </mx:Script>   
37.  
38.    <mx:Button label="Launch TitleWindow" click="init()" />   
39.  
40.</mx:Application>  
2.弹出窗口为DataGrid添加新数据


(1)Note.as

package 
{ 
  public class Note 
  { 
    public var author:String; 
    public var topic:String; 
    public var description:String; 
  } 
}

(2)AddNote.mxml

<?xml version="1.0" encoding="utf-8"?>
<mx:TitleWindow xmlns:mx="http://www.adobe.com/2006/mxml"
layout="absolute" width="348" height="218"
title="Add A Note">
  <mx:Metadata>
    [Event(name="SaveNote")] 
  </mx:Metadata>
  <mx:Script>
   <![CDATA[
     import mx.managers.PopUpManager;       
     //PopUpManager.createPopUp() 创建弹出窗口
     private function close():void
     {
       PopUpManager.removePopUp(this);
     }
     
     private function save():void
     {
       this.dispatchEvent(new Event("SaveNote"));
     }
   ]]>
</mx:Script>
  <mx:Label text="Author" x="35" y="10"/>
  <mx:TextInput id="author" width="150" x="84" y="8"/>
  <mx:Label text="Topic"  y="36" x="42"/>
  <mx:TextInput id="topic" width="150" x="84" y="34"/>
  <mx:Label text="Description"  y="62" x="10"/>
  <mx:TextArea id="description" width="234" height="77" x="84" y="61"/>
  <mx:Button label="Cancel" click="close()" x="193" y="146"/>
  <mx:Button label="Save" click="save()" x="264" y="146"/>
</mx:TitleWindow  >


(3)Test.mxml

<?xml version="1.0" encoding="utf-8"?>
<mx:Application
xmlns:mx="http://www.adobe.com/2006/mxml"
layout="absolute"
width="500" height="300"
creationComplete="init()">
  <mx:Script>
   <![CDATA[
     import mx.managers.PopUpManager;
     import mx.collections.ArrayCollection;
   
     [Bindable]
     private var notes:ArrayCollection = new ArrayCollection();
   
     private var addNoteScreen:AddNote;
   
     private function init():void
     {
       addNoteScreen = new AddNote();
       addNoteScreen.addEventListener("SaveNote", saveNote);
     }
   
     private function addNote():void
     {
       PopUpManager.addPopUp(addNoteScreen, this, true);
       PopUpManager.centerPopUp(addNoteScreen);
       addNoteScreen.author.text = "";
       addNoteScreen.topic.text = "";
       addNoteScreen.description.text = "";
     }
   
     private function saveNote(e:Event):void
     {
       var note:Note = new Note();
       note.author = addNoteScreen.author.text;
       note.topic = addNoteScreen.topic.text;
       note.description = addNoteScreen.description.text;
       notes.addItem(note);
       PopUpManager.removePopUp(addNoteScreen);
     }
   ]]>
</mx:Script>
  <mx:Panel title="Notes"
   width="100%" height="100%"
   layout="vertical" horizontalAlign="right"
   paddingTop="3" paddingLeft="3" paddingRight="3" paddingBottom="3">
    <mx:DataGrid dataProvider="{notes}" width="100%" height="100%">
      <mx:columns>
        <mx:DataGridColumn headerText="Author" dataField="author" width="80"/>
        <mx:DataGridColumn headerText="Topic" dataField="topic" width="100"/>
        <mx:DataGridColumn headerText="Description" dataField="description"/>
      </mx:columns>
    </mx:DataGrid>
    <mx:Button label="Add Note" click="addNote()"/>
  </mx:Panel>
</mx:Application>