Flex中如何利用alternatingItemColors样式设置List控件行交叉颜色的例子

<?xml version="1.0" encoding="utf-8"?> 
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" 
        layout="vertical" 
        verticalAlign="middle" 
        backgroundColor="white"> 
  
    <mx:ArrayCollection id="arrColl"> 
        <mx:source> 
            <mx:Array> 
                <mx:Object label="Row 1" /> 
                <mx:Object label="Row 2" /> 
                <mx:Object label="Row 3" /> 
                <mx:Object label="Row 4" /> 
                <mx:Object label="Row 5" /> 
                <mx:Object label="Row 6" /> 
                <mx:Object label="Row 7" /> 
                <mx:Object label="Row 8" /> 
            </mx:Array> 
        </mx:source> 
    </mx:ArrayCollection> 
  
    <mx:List id="list" 
            alternatingItemColors="[0xEEEEEE, 0xDFDFDF]" 
            dataProvider="{arrColl}" 
            rowCount="4" 
            width="200" /> 
  
</mx:Application>