In a previous example, “Styling the selected button on a Spark ButtonBar control in Flex 4″, we saw how you could style the currently selected button on a Flex 4 Spark ButtonBar control by styling the various states on the Spark ButtonBarButton selector.
The following example shows how you can style the currently selected tab on a Flex 4 Spark TabBar control by styling the various states on the Spark ButtonBarButton selector.
Full code after the jump.
The following example(s) require Flash Player 10 and the Adobe Flex 4 SDK. To download the Adobe Flash Builder 4 beta, check out the Adobe Flash Builder 4 page on the Adobe Labs site. To download the latest build of the Flex 4 SDK, see http://opensource.adobe.com/wiki/display/flexsdk/Download+Flex+4. For instructions on using the beta Flex 4 SDK in Flex Builder 3, see "Using the beta Flex 4 SDK in Flex Builder 3".
<?xml version="1.0" encoding="utf-8"?> <!-- http://blog.flexexamples.com/2009/11/13/styling-the-selected-tab-on-a-spark-tabbar-control-in-flex-4/ --> <s:Application name="Spark_TabBar_statesStyle_test" xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/halo"> <fx:Style> @namespace s "library://ns.adobe.com/flex/spark"; @namespace mx "library://ns.adobe.com/flex/halo"; s|TabBar s|ButtonBarButton:upAndSelected, s|TabBar s|ButtonBarButton:overAndSelected, s|TabBar s|ButtonBarButton:downAndSelected { baseColor: haloBlue; } </fx:Style> <s:TabBar id="tabBar" horizontalCenter="0" verticalCenter="0"> <s:dataProvider> <s:ArrayList source="[1,The Quick,Brown Fox,Jumps over the,Lazy dog]" /> </s:dataProvider> </s:TabBar> </s:Application>
This entry is based on a beta version of the Flex 4 SDK and therefore is very likely to change as development of the Flex SDK continues. The API can (and will) change causing examples to possibly not compile in newer versions of the Flex 4 SDK.
{ 2 comments… read them below or add one }
I haven’t seen a Spark TabBar class in Flex 4, when was this created? Doesn’t Flash Builder 4 Beta 2 come with the second beta of Flex 4? Or is that part of a recent nightly release?
@Javier Julio,
You’ll need to grab a recent nightly build. I believe the Spark TabBar wasn’t added until 4.0.0.11444; http://forums.adobe.com/message/2368131
Peter