Flex - TitleWindow

简介

TitleWindow 类扩展了 Panel 类，使其包含关闭按钮和移动区域。

类声明

以下是 spark.components.TitleWindow 类的声明 −

public class TitleWindow
extends Panel

公共方法

Sr.No	方法 &描述
1	TitleWindow() 构造函数。

事件

Sr.No	事件 &描述
1	close 当用户选择关闭按钮时分派。
2	windowMove 当用户成功拖动窗口后分派。
3	windowMoveEnd 当用户在拖动后释放鼠标按钮时分派。
4	windowMoveStart 当用户按住鼠标按钮时分派在移动区域中并开始拖动窗口。
5	windowMoving 当用户拖动窗口时分派。

继承的方法

此类从以下类继承方法 −

spark.components.Panel
spark.components.SkinnableContainer
spark.components.supportClasses.SkinnableContainerBase
spark.components.supportClasses.SkinnableComponent
mx.core.UIComponent
mx.core.FlexSprite
flash.display.Sprite
flash.display.DisplayObjectContainer
flash.display.InteractiveObject
flash.display.DisplayObject
flash.events.EventDispatcher
Object

Flex TitleWindow 示例

让我们按照以下步骤通过创建测试应用程序来检查 Flex 应用程序中 TitleWindow 的使用情况−

步骤 1 – 创建项目

在 com.tutorialspoint.client 包下创建一个名为 HelloWorld 的项目，如 Flex - 创建应用程序 一章中所述。

步骤 2 – 创建自定义 Title WIndow 组件

使用选项 File > New > MXML Component 启动 Create MXML Component 向导。

输入 com.tutorialspoint.client 包，命名为 CustomTitleWindow，并根据现有 flex TitleWindow 控件选择 spark.component.TitleWindow。按照下面所述进行修改。

以下是修改后的 mxml 文件 src/com.tutorialspoint.client/CustomTitleWindow.mxml 的内容。

<?xml version = "1.0" encoding = "utf-8"?>
<s: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" width = "400" height = "300"
   title = "Title Window Container" close = "PopUpManager.removePopUp(this);"> 
   <s:layout>
      <s:VerticalLayout verticalAlign = "middle" horizontalAlign = "center" />
   </s:layout>
   
   <fx:Script>
      <![CDATA[
         import mx.managers.PopUpManager;
      ]]>
   </fx:Script>
   <s:Label text = "Content area of title window" />
</s:TitleWindow>

步骤 3 – 修改 HelloWorld.mxml

按照以下说明修改 HelloWorld.mxml。其余文件保持不变。

以下是修改后的 mxml 文件 src/com.tutorialspoint/HelloWorld.mxml 的内容。

<?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%" minWidth = "500" minHeight = "500">  
   
   <fx:Style source = "/com/tutorialspoint/client/Style.css" />
   <fx:Script>
      <![CDATA[
         import mx.core.IFlexDisplayObject;
         import mx.managers.PopUpManager;
         
         private function showWindow():void {
            var popUp:IFlexDisplayObject = 
               PopUpManager.createPopUp(this,CustomTitleWindow,true);
            PopUpManager.centerPopUp(popUp);
         }
      ]]>
   </fx:Script>
   
   <s:BorderContainer width = "630" height = "480" id = "mainContainer" 
      styleName = "container">
      <s:VGroup width = "100%" height = "100%" gap = "50" 
         horizontalAlign = "center" verticalAlign = "middle">
         <s:Label id = "lblHeader" text = "Layout Panels Demonstration" 
            fontSize = "40" color = "0x777777" styleName = "heading" />
         
         <s:Panel id = "titleWindowPanel" title = "Using TitleWindow" 
            width = "500" height = "300">
         
            <s:layout> 
               <s:VerticalLayout  gap = "10" verticalAlign = "middle" 
                  horizontalAlign = "center" />	
            </s:layout>				
            
            <s:Button id = "showButton" 
               label = "Click to show the TitleWindow container" 
               click = "showWindow();" />
         </s:Panel>
      </s:VGroup>	 
   </s:BorderContainer>	
</s:Application>