loadinfo.mxml

flex 的一个 简单的加载源码 解决的问题是 怎样 加载效率最高！ 最能够减少成本

<?xml version="1.0" encoding="utf-8"?>
<mx:WindowedApplication xmlns:mx="http://www.adobe.com/2006/mxml" 
	layout="absolute" initialize="init()">
	<mx:Script>
		<![CDATA[
			
			
			public function init():void{
				var request:URLRequest = new URLRequest("flashrek.swf");
			 var loader:Loader = new Loader();
				loader.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, loadProgress);
				loader.contentLoaderInfo.addEventListener(Event.COMPLETE, loadComplete);
				loader.load(request);
				addChild(loader);
			}
			public function loadProgress(event:ProgressEvent):void {
			    var percentLoaded:Number = event.bytesLoaded/event.bytesTotal;
			    percentLoaded = Math.round(percentLoaded * 100);
			    trace("Loading: "+percentLoaded+"%");
			}
			public function loadComplete(event:Event):void {
			    trace("Complete");
			}
		]]>
	</mx:Script>
</mx:WindowedApplication>