actionscript 3-来自父swf的as3访问变量

Question

我正试图让子级读取其父级的vars，反之亦然。父母阅读孩子的变量没有问题，但由于某种原因，孩子只得到了"未定义"作为答案。。。(而不是"456"(

父脚本

var mySwf
var masterVar=456
function startLoad() { 
    var myLoader:Loader = new Loader(); 
    var mRequest:URLRequest = new URLRequest("test1.swf"); 
    myLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, onCompleteHandler);
    myLoader.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, onProgressHandler);
    myLoader.load(mRequest); 
} 
function onCompleteHandler(loadEvent:Event) {
    mySwf=loadEvent.currentTarget.content
    addChild(mySwf);
    trace(mySwf.slaveVar)//123
}
function onProgressHandler(mProgress:ProgressEvent) {
}
startLoad()

Child(test1.swf)脚本

var slaveVar=123
trace(Object(parent))//[object Loader]
trace(Object(parent.parent))//[object Object]
trace(Object(parent.parent).masterVar)//undefined
trace(Object(this.parent.parent).masterVar)//undefined

parent.parent.parent为null并且MovieClip(parent.parent(只吐出错误

我不知道怎么了。。。我是不是错过了什么？

Answer 1

试试这个：

在子swf:中

var theParent:Object;
addEventListener(Event.ADDED_TO_STAGE, onAdded);
function onAdded(e:Event):void
{
    theParent = this.parent as Object
    trace(theParent.masterVar);
    //will work after child swf has been added to the display list of the parent file.
}