Flex - TabBar

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Introduction

The TabBar class represents a set of identical tabs.

Class declaration

Following is the declaration for spark.components.TabBar class:

public class TabBar
   extends ButtonBarBase
      implements IFocusManagerComponent

Public methods

S.N.Method & Description
1TabBar()
Constructor.

Methods inherited

This class inherits methods from the following classes:

  • 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 Example

Let us follow the following steps to check usage of TabBar in a Flex application by creating a test application:

StepDescription
1Create a project with a name HelloWorld under a package com.tutorialspoint.client as explained in the Flex - Create Application chapter.
2Modify HelloWorld.mxml as explained below. Keep rest of the files unchanged.
3Compile and run the application to make sure business logic is working as per the requirements.

Following is the content of the modified mxml file src/com.tutorialspoint/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/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>

Once you are ready with all the changes done, let us compile and run the application in normal mode as we did in Flex - Create Application chapter. If everything is fine with your application, this will produce following result: [ Try it online ]

Flex TabBar

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