ClassFactory实例.

最新推荐文章于 2020-12-23 00:18:53 发布

转载最新推荐文章于 2020-12-23 00:18:53 发布 · 62 阅读

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原文链接：http://www.cnblogs.com/xxcainiao/archive/2008/06/12/1218577.html

本文通过Flex中的ClassFactory类实例化不同颜色的正方形组件。利用Square类定义了一个UIComponent子类，并设置了其颜色属性。通过ClassFactory创建了白色、黑色和红色的正方形。

FLEX的例子中经常看到这个类.来个实例看看如何应用。

package
{
    import flash.display.Graphics;

    import mx.core.UIComponent;

    public class Square extends UIComponent
    {
        public var color:uint=0xFFFFFF;
        public function Square()
        {
            super();
        }
        protected override function updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void
        {
            super.updateDisplayList(unscaledWidth,unscaledHeight);
            var g:Graphics = graphics;
            g.clear();
            g.beginFill(color);
            g.drawRect(0,0,100,100);
            g.endFill();
        }

    }
}

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" creationComplete="initApp()"
     layout="horizontal">
    <mx:Script>
        <![CDATA[

            private var myClassFactory:ClassFactory = new ClassFactory(Square);
            private function initApp():void
            {
                var whiteSquare:Square = myClassFactory.newInstance();
                myClassFactory.properties={color:0x000000};
                var blackSquare:Square = myClassFactory.newInstance();
                myClassFactory.properties={color:0xFF0000};
                var redSquare:Square = myClassFactory.newInstance();
                addChild(whiteSquare);
                addChild(blackSquare);
                addChild(redSquare);
            }
        ]]>
    </mx:Script>

</mx:Application>

来自：http://sherifabdou.com/2008/06/05/example-of-using-the-classfactory-class/

转载于:https://www.cnblogs.com/xxcainiao/archive/2008/06/12/1218577.html