Flex - 標籤欄 (TabBar)

簡介

TabBar 類表示一組相同的標籤。

類宣告

以下是 **spark.components.TabBar** 類的宣告：

public class TabBar
   extends ButtonBarBase
      implements IFocusManagerComponent

公共方法

序號	方法及描述
1	TabBar() 建構函式。

繼承的方法

此類繼承自以下類的方法：

spark.components.supportClasses.ButtonBarBase
spark.components.ListBase
spark.components.SkinnableDataContainer
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 TabBar 示例

讓我們按照以下步驟，透過建立一個測試應用程式來檢查在 Flex 應用程式中使用 TabBar 的方法：

步驟	描述
1	建立一個名為 HelloWorld 的專案，放在 com.tutorialspoint.client 包下，具體步驟請參考 Flex - 建立應用章節。
2	修改 HelloWorld.mxml 檔案，如下所示。保持其他檔案不變。
3	編譯並執行應用程式，以確保業務邏輯按要求工作。

以下是修改後的 mxml 檔案 **src/com.tutorialspoint/HelloWorld.mxml** 的內容。

<?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" />
   <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 = "tabBarPanel" title = "Using TabBar" 
            width = "500" height = "300" >
            <s:layout>
               <s:VerticalLayout gap = "0" />	
            </s:layout>
            
            <s:TabBar id = "tabs" dataProvider = "{viewStack}" left = "5" top = "5" />
            <mx:ViewStack id = "viewStack" width = "95%" height = "85%" left = "5">
               <s:NavigatorContent label = "Tab #1"  width = "100%" height = "100%">
                  <s:BorderContainer width = "100%" height = "100%" >
                     <s:Label text = "Content area for Tab #1" 
                        verticalCenter = "0" horizontalCenter = "0" />
                  </s:BorderContainer>
               </s:NavigatorContent>
               
               <s:NavigatorContent label = "Tab #2"  width = "100%" height = "100%">
                  <s:BorderContainer width = "100%" height = "100%">
                     <s:Label text = "Content area for Tab #2" 
                        verticalCenter = "0" horizontalCenter = "0" />
                  </s:BorderContainer>
               </s:NavigatorContent>
            </mx:ViewStack>						
         </s:Panel>
      </s:VGroup>	 
   </s:BorderContainer>	
</s:Application>

完成所有更改後，讓我們像在 Flex - 建立應用章節中所做的那樣，以普通模式編譯並執行應用程式。如果應用程式一切正常，則會產生以下結果：[ 線上試用 ]

flex_layout_panels.htm

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