TabNavigator

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2023-12-01

介绍 (Introduction)

TabNavigator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.TabNavigator类的声明 -

public class TabNavigator 
   extends ViewStack 
      implements IFocusManagerComponent

受保护的属性

S.No	财产和描述
1	tabBar : mx.controls:TabBar TabNavigator中对TabBar的引用。
2	tabBarStyleFilters : Object [只读]从TabNavigator传递到tabBar的样式集。

S.No

财产和描述

tabBar : mx.controls:TabBar

TabNavigator中对TabBar的引用。

tabBarStyleFilters : Object

[只读]从TabNavigator传递到tabBar的样式集。

公共方法 (Public Methods)

S.No	方法和描述
1	TabNavigator() 构造函数。
2	getTabAt(index:int):Button 返回指定索引处导航器TabBar控件的选项卡。

S.No

方法和描述

TabNavigator()

构造函数。

getTabAt(index:int):Button

返回指定索引处导航器TabBar控件的选项卡。

受保护的方法 (Protected Methods)

S.No	方法和描述
1	measure():void [override]计算此TabNavigator容器的默认大小以及最小值和最大值。
2	updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void [override]通过设置此容器的选项卡和子项的位置和大小来响应大小更改。

S.No

方法和描述

measure():void

[override]计算此TabNavigator容器的默认大小以及最小值和最大值。

updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void

[override]通过设置此容器的选项卡和子项的位置和大小来响应大小更改。

方法继承 (Methods Inherited)

该类继承以下类中的方法 -

mx.containers.ViewStack
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 TabNavigator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TabNavigator控件的用法 -

步	描述
1	在cn.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 = "tabNavigatorPanel" title = "Using TabNavigator" 
            width = "500" height = "300" >
            <s:layout>
               <s:HorizontalLayout  gap = "10" verticalAlign = "middle" 
                  horizontalAlign = "center" />	
            </s:layout>				
            <mx:TabNavigator id = "tabNavigator" 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:TabNavigator>
         </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。