Setting the bar skin on a ProgressBar control in Flex

The following example shows how you can set a custom bar skin for a Flex ProgressBar control by setting the barSkin style.

Full code after the jump.

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/03/27/setting-the-bar-skin-on-a-progressbar-control-in-flex/ -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white">

    <mx:Script>
        <![CDATA[
            import mx.events.SliderEvent;

            private function init():void {
                var c:Class = progressBar.getStyle("indeterminateSkin");
                progressBar.setStyle("barSkin", c);
                progressBar.setProgress(15, 100);
            }

            private function progressBar_change(evt:SliderEvent):void {
                progressBar.setProgress(evt.value, 100);
            }
        ]]>
    </mx:Script>

    <mx:ApplicationControlBar dock="true">
        <mx:Form styleName="plain">
            <mx:FormItem label="value:">
                <mx:HSlider id="slider"
                        minimum="0"
                        maximum="100"
                        value="15"
                        liveDragging="true"
                        snapInterval="1"
                        tickInterval="10"
                        dataTipPrecision="0"
                        change="progressBar_change(event);" />
            </mx:FormItem>
        </mx:Form>
    </mx:ApplicationControlBar>

    <mx:ProgressBar id="progressBar"
            mode="manual"
            labelPlacement="center"
            height="50"
            creationComplete="init();" />

</mx:Application>

View source is enabled in the following example.

You can also set the barSkin style in an external .CSS file or <mx:Style /> block, as seen in the following snippet:

ProgressBar {
    barSkin: ClassReference("mx.skins.halo.ProgressIndeterminateSkin");
}

Or, you can set the barSkin style in MXML using the following snippet:

<mx:ProgressBar id="progressBar"
        barSkin="mx.skins.halo.ProgressIndeterminateSkin"
        mode="manual"
        labelPlacement="center"
        height="50" />