Flash ActionScript2中加载外部SWF的问题

问题：加载外部SWF后，加载器不能响应鼠标事件，也就是点击加载的SWF没响应。

原因：加载后加载器MovieClip的所有属性方法都被擦出，参考资料

解决方法：在加载器下建一个子MovieClip用于加载SWF文件，用加载器进行控制。

基本步骤如下：

1. 用createEmptyMovieClip创建一个空的MovieClip
   
2. 使用MovieClip的loadMovie或者MovieClipLoader的loadClip加载外部SWF
   

var my_mcl:MovieClipLoader = new MovieClipLoader();

var mclListener:Object = new Object();

mclListener.onLoadError = function(target_mc:MovieClip, errorCode:String, status:Number) {

trace("Error loading image: "+errorCode+" ["+status+"]");

};

mclListener.onLoadStart = function(target_mc:MovieClip):Void  {

trace("onLoadStart: "+target_mc);

};

mclListener.onLoadProgress = function(target_mc:MovieClip, numBytesLoaded:Number, numBytesTotal:Number):Void  {

var numPercentLoaded:Number = numBytesLoaded/numBytesTotal*100;

trace("onLoadProgress: "+target_mc+" is "+numPercentLoaded+"%loaded");

};

mclListener.onLoadComplete = function(target_mc:MovieClip, status:Number):Void  {

trace("onLoadComplete: "+target_mc);

};

mclListener.onLoadInit = function(target_mc:MovieClip):Void {

// stop playing movie clip after loaded

target_mc.stop();

}

my_mcl.addListener(mclListener);

var loader = createEmptyMovieClip("loader"+i, this.getNextHighestDepth());

loader.target = loader.createEmptyMovieClip("loaderL"+i+"target", _parent.getNextHighestDepth());

my_mcl.loadClip("swf file url",loader.target);

这样加载后就可以对loader添加鼠标响应等行为，比如

loader.onPress = loaderPress;

loader.onRollOver = loaderRollOver;

loader.onRollOut = loaderRollOut;