Accordian

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2023-12-01

介绍 (Introduction)

Accordian控件是一个导航器容器,它有一个子容器集合,但一次只能看到其中一个容器。

Class 声明 (Class Declaration)

以下是mx.containers.Accordian类的声明 -

public class Accordion 
   extends Container
      implements IHistoryManagerClient, IFocusManagerComponent

公共属性 (Public Properties)

S.No财产和描述
1

headerRenderer : IFactory

用于为每个孩子创建导航按钮的工厂。

2

historyManagementEnabled : Boolean

如果设置为true,则此属性将在此Accordion容器中启用历史记录管理。

3

resizeToContent : Boolean

如果设置为true,则此Accordion会自动调整大小为其当前子项的大小。

4

selectedChild : INavigatorContent

对当前可见子容器的引用。

5

selectedIndex : int

当前可见子容器的从零开始的索引。

受保护的属性

S.No财产和描述
1

contentHeight : Number

[只读]显示内容的区域高度(以像素为单位)。

2

contentWidth : Number

[只读]显示内容的区域宽度(以像素为单位)。

公共方法 (Public Methods)

S.No方法和描述
1

Accordion()

构造函数。

2

getHeaderAt(index:int):Button

返回对子容器的导航器按钮的引用。

3

loadState(state:Object):void

加载此对象的状态。

4

saveState():Object

保存此对象的状态。

事件 (Events)

S.No活动和描述
1

change

在所选子容器更改时分派。

方法继承 (Methods Inherited)

该类继承以下类中的方法 -

  • mx.core.Container
  • mx.core.UIComponent
  • mx.core.FlexSprite
  • flash.display.Sprite
  • flash.display.DisplayObjectContainer
  • flash.display.InteractiveObject
  • flash.display.DisplayObject
  • flash.events.EventDispatcher
  • Object

Flex Accordian控制示例

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Accordian控件的使用情况 -

描述
1cn.xnip.client包下创建一个名为HelloWorld的项目,如Flex - Create Application一章中所述。
2修改HelloWorld.mxml ,如下所述。 保持其余文件不变。
3编译并运行应用程序以确保业务逻辑按照要求运行。

以下是修改后的mxml文件src/cn.xnip/HelloWorld.mxml

<?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/xnip/client/Style.css" />	   
   <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 = "Complex Controls Demonstration" 
            fontSize = "40" color = "0x777777" styleName = "heading" />
         <s:Panel id = "accordianPanel" title = "Using Accordian" 
            width = "500" height = "300" >
            <s:layout>
               <s:HorizontalLayout  gap = "10" verticalAlign = "middle" 
                  horizontalAlign = "center" />	
            </s:layout>				
            <mx:Accordion id = "accordion" width = "95%" height = "90%">
               <s:NavigatorContent label = "Section 1" width = "100%" 
                  height = "100%">
                  <s:VGroup verticalAlign = "middle" horizontalAlign = "center" 
                     width = "100%" height = "100%">
                     <s:Label text = "Contents for Section 1" />	
                  </s:VGroup>							
               </s:NavigatorContent>
               <s:NavigatorContent label = "Section 2" width = "100%" 
                  height = "100%">
                  <s:VGroup verticalAlign = "middle" horizontalAlign = "center"
                     width = "100%" height = "100%">
                     <s:Label text = "Contents for Section 2" />	
                  </s:VGroup>							
               </s:NavigatorContent>
               <s:NavigatorContent label = "Section 3" width = "100%" 
                  height = "100%">
                  <s:VGroup verticalAlign = "middle" horizontalAlign = "center" 
                     width = "100%" height = "100%">
                     <s:Label text = "Contents for Section 3" />	
                  </s:VGroup>							
               </s:NavigatorContent>
               <s:NavigatorContent label = "Section 4" width = "100%" 
                  height = "100%">
                  <s:VGroup verticalAlign = "middle" horizontalAlign = "center" 
                     width = "100%" height = "100%">
                     <s:Label text = "Contents for Section 4" />	
                  </s:VGroup>							
               </s:NavigatorContent>
            </mx:Accordion>
         </s:Panel>
      </s:VGroup>	 
   </s:BorderContainer>	
</s:Application>

一旦准备好完成所有更改,让我们像在Flex - Create Application章节中那样在正常模式下编译和运行应用程序

Flex Accordian Control