flex内阴影成效

flex内阴影效果

记录一下，AS代码如下：

private function getBitmapFilter():BitmapFilter {
    var color:Number = 0x96c2e6;
    var alpha:Number = 0.8;
    var blurX:Number = 5;
    var blurY:Number = 5;
    var strength:Number = 2;
    var inner:Boolean = true;
    var knockout:Boolean = false;
var quality:Number = BitmapFilterQuality.HIGH;

    return new GlowFilter(color,
                          alpha,
                          blurX,
                          blurY,
                          strength,
                          quality,
                          inner,
                          knockout);
}

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。