ToggleButtonBar

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2023-12-01

介绍 (Introduction)

ToggleButtonBar控件提供一组水平或垂直按钮,用于维持其选定或取消选择的状态。

Class 声明 (Class Declaration)

以下是mx.controls.ToggleButtonBar类的声明 -

public class ToggleButtonBar
   extends ButtonBar

公共属性 (Public Properties)

S.No财产和描述
1

selectedIndex : int

[覆盖]所选按钮的索引。

2

toggleOnClick : Boolean

指定用户是否可以取消选择当前选定的按钮。

公共方法 (Public Methods)

S.No方法和描述
1

ToggleButtonBar()

构造函数。

方法继承 (Methods Inherited)

该类继承以下类中的方法 -

  • mx.controls.ButtonBar
  • mx.controls.NavBar
  • mx.containers.Box
  • 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 ToggleButtonBar控件示例

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ToggleButtonBar控件的用法 -

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" />
   <fx:Script>
      <![CDATA[
         import mx.events.ItemClickEvent;
         private function sectionClickHandler(event:ItemClickEvent):void {
            sectionContents.text = "Contents for " + event.label;
         }
      ]]>
   </fx:Script>
   <fx:Declarations>
      <fx:Array id = "sectionList">
         <fx:String>Section 1</fx:String>
         <fx:String>Section 2</fx:String>
         <fx:String>Section 3</fx:String>
         <fx:String>Section 4</fx:String>
         <fx:String>Section 5</fx:String>
      </fx:Array>
   </fx:Declarations>   
   <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 = "toggleButtonBarPanel" title = "Using ToggleButtonBar"
            width = "500" height = "300" >
            <s:layout>
               <s:VerticalLayout  gap = "10" verticalAlign = "middle"
                  horizontalAlign = "center" paddingTop = "10" />	
            </s:layout>
            <mx:ToggleButtonBar itemClick = "sectionClickHandler(event);" 
               dataProvider = "{sectionList}" />
            <s:BorderContainer width = "90%" height = "70%" 
               borderColor = "0x323232">
               <s:VGroup verticalAlign = "middle" 
                  horizontalAlign = "center" width = "100%" height = "100%">
                  <s:Label id = "sectionContents"
                     text = "Contents for Section 1" />	
               </s:VGroup>	
            </s:BorderContainer>							
         </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 ToggleButtonBar控件