Flex 容器阴影

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" fontSize="16" layout="absolute">
	
<mx:Script>
	<![CDATA[
		private function getBitmapFilter():BitmapFilter {
    var color:Number = 0x656262;//阴影颜色。
    var alpha:Number = 0.4; //调节阴影的透明度。值越小。越透明。
    var blurX:Number = 35;	//左右阴影的宽度。
    var blurY:Number = 35;	//上下边框的阴影宽度
    var strength:Number = 2;
    var inner:Boolean = false;
    var knockout:Boolean = false;
    var quality:Number = BitmapFilterQuality.HIGH;

    return new GlowFilter(color,
                          alpha,
                          blurX,
                          blurY,
                          strength,
                          quality,
                          inner,
                          knockout);
	}
	]]>
</mx:Script>
 <mx:Canvas width="414" height="318" filters="{[getBitmapFilter()]}" 
        borderStyle="solid" backgroundColor="#FFFFFF" horizontalCenter="-2" verticalCenter="34" borderThickness="5" borderColor="#010000" cornerRadius="20" themeColor="#ED8A9A" fontSize="6" y="77" x="137">
  <mx:Image x="9" y="8" width="382" height="289" source="1.png" />
 </mx:Canvas>

</mx:Application>


设置组件的filters属性,组件要设置边框和背景色样式才能看得出,下面是示例:
    <mx:Canvas width="300" height="200" filters="{[getBitmapFilter()]}" 
        borderStyle="solid" backgroundColor="#FFFFFF"/>
可适当调节一些参数值来改变内阴影的效果。特别是inner及knockout两个属性,可以做出内阴影及外阴影,两个都是false为外阴影。


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