Flash/Flex学习笔记(13)：如何做自定义Loading加载其它swf
const FILE_PATH:String="main.swf";const CLASS_NAME:String="MainSwf";
var loader:Loader;
var request:URLRequest;
loader = new Loader();
request=new URLRequest(FILE_PATH);
loader.contentLoaderInfo.addEventListener(Event.COMPLETE,onComplete);
loader.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS,onProgress);
loader.load(request);
function onComplete(e:Event):void {
var domain:ApplicationDomain=e.target.applicationDomain as ApplicationDomain;
var swfClass:Class=domain.getDefinition(CLASS_NAME) as Class;
var swfInstance:Sprite = (new swfClass()) as Sprite;
swfInstance.x=0;
swfInstance.y=0;
//卸掉舞台上现有的东西
var _childCount = numChildren;
for (var i:int=_childCount-1; i>=0; i--) {
this.removeChildAt(i);
}
//加载刚下载的动画
this.addChild(swfInstance);
}
function onProgress(e:ProgressEvent) {
//trace(e);
label1.text = "正在加载，" + e.bytesLoaded + " / " + e.bytesTotal + "， " + (Math.round( (100 * e.bytesLoaded / e.bytesTotal) / 0.01) * 0.01) + " %";
}
stop();
解释:as3中每个fla都可以对应一个.as文件，用于实现代码界面分离，上面代码中的CLASS_NAME即为.as文件中定义的类名
http://pic002.cnblogs.com/img/yjmyzz/201003/2010031713514121.jpg
注意：如果在Main.fla中用到了系统组件(比如TileList之类)，最好在Loading.fla中也拖一个出来到舞台上，然后删除，否则在loading中加载main的实例时，会出一些莫名其妙的问题!
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