在FLEX中动态更换CSS样式表

StyleManager类的StyleManager.loadStyleDeclarations() 方法.
示例：

代码：

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2007/12/12/loading-cascading-style-sheets-on-the-fly-using-the-flex-stylemanager-class/ -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle">

    <mx:Script>
        <![CDATA[
            import mx.styles.StyleManager;

            private function loadStyles(styleURL:String):void {
                StyleManager.loadStyleDeclarations(styleURL);
            }
        ]]>
    </mx:Script>

    <mx:ApplicationControlBar dock="true">
        <mx:ComboBox id="comboBox"
                prompt="Please select a style"
                change="loadStyles(comboBox.selectedItem.data);">
            <mx:dataProvider>
                <mx:Array>
                    <mx:Object label="red" data="styles/red.swf" />
                    <mx:Object label="green" data="styles/green.swf" />
                    <mx:Object label="blue" data="styles/blue.swf" />
                </mx:Array>
            </mx:dataProvider>
        </mx:ComboBox>
    </mx:ApplicationControlBar>

</mx:Application>