Flex - TabNavigator Control
Introduction
The TabNavigator control is a navigator container which has a collection of child containers, but only one of them at a time is visible.
Class declaration
Following is the declaration for mx.containers.TabNavigator class:
public class TabNavigator
extends ViewStack
implements IFocusManagerComponent
Protected properties
| S.N. | Property & Description |
|---|---|
| 1 | tabBar : mx.controls:TabBar A reference to the TabBar inside this TabNavigator. |
| 2 | tabBarStyleFilters : Object [read-only] The set of styles to pass from the TabNavigator to the tabBar. |
Public methods
| S.N. | Method & Description |
|---|---|
| 1 | TabNavigator() Constructor. |
| 2 | getTabAt(index:int):Button Returns the tab of the navigator's TabBar control at the specified index. |
Protected methods
| S.N. | Method & Description |
|---|---|
| 1 | measure():void [override] Calculates the default sizes and mininum and maximum values of this TabNavigator container. |
| 2 | updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void [override] Responds to size changes by setting the positions and sizes of this container's tabs and children. |
Methods inherited
This class inherits methods from the following classes:
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 Control Example
Let us follow the following steps to check usage of TabNavigator control in a Flex application by creating a test application:
| Step | Description |
|---|---|
| 1 | Create a project with a name HelloWorld under a package com.tutorialspoint.client as explained in the Flex - Create Application chapter. |
| 2 | Modify HelloWorld.mxml as explained below. Keep rest of the files unchanged. |
| 3 | Compile 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="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>
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 ]
