按顺序从 2 个 urlloader 加载并在 FLEX 中保持流程

发布于 2024-10-30 19:18:39 字数 988 浏览 1 评论 0原文

我有一个Flex应用程序，在创建完成时我调用一个方法，在该方法中我需要从服务器加载两个XML文件。只有在这之后我才需要进一步继续。

目前我正在做以下

onCreationComplete = init();    

private function init():void{

    //loading first XML

    urlReq = new URLRequest(PATH_FOR_XML1);
    urlLdr = new URLLoader(urlReq);
    urlLdr.addEventListener(Event.COMPLETE, doEvent);

    //Some other operation  goes here say SOMEGREATWORK    
}

**doEvent method**

private function doEvent(evt:Event):void{

    //Loading the data of XML1 to some variable which i use application wide

    urlReq = new URLRequest(PATH_FOR_XML2);
    urlLdr = new URLLoader(urlReq);
    urlLdr.addEventListener(Event.COMPLETE, loadXML2);
}

private function loadXML2(evt:Event):void{
    //Loading the data of XML2 to the some varibale which i use application Wide
}

事情我实际上在做的是，一旦一个 URL 的加载完成后，我从中加载数据，并从相同的方法开始加载第二个 URL 加载器。

但问题是我不希望在 2 个 XML 加载到应用程序变量之前执行 SOMEGREATWORK 块，

因为在 SOMEGREATWORK 块中，我将使用它们，并且在执行时，有时变量未正确加载。

原文

I have a flex application where on creationComplete i call a method in which i needed to load two XML files frm the server.only after which i need to proceed further..

Currently i am doing the following

onCreationComplete = init();    

private function init():void{

    //loading first XML

    urlReq = new URLRequest(PATH_FOR_XML1);
    urlLdr = new URLLoader(urlReq);
    urlLdr.addEventListener(Event.COMPLETE, doEvent);

    //Some other operation  goes here say SOMEGREATWORK    
}

**doEvent method**

private function doEvent(evt:Event):void{

    //Loading the data of XML1 to some variable which i use application wide

    urlReq = new URLRequest(PATH_FOR_XML2);
    urlLdr = new URLLoader(urlReq);
    urlLdr.addEventListener(Event.COMPLETE, loadXML2);
}

private function loadXML2(evt:Event):void{
    //Loading the data of XML2 to the some varibale which i use application Wide
}

What actually i was doing is ,once the loading of one URL completed, i load data from it and the starting the loading of second URL loader from the same method.

But the problem is
i dont want SOMEGREATWORK block to be executed before the 2 XMLs are loaded to application variables

because in SOMEGREATWORK block , i will be using the them and by the time this executes, sometimes the variables are not loaded properly.

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不乱于心 2024-11-06 19:18:39

试试这个：

    onCreationComplete = init();


private function init():void{

    //loading first XML

    urlReq = new URLRequest(PATH_FOR_XML1);
    urlLdr = new URLLoader(urlReq);
    urlLdr.addEventListener(Event.COMPLETE, doEvent);

}


private function doEvent(evt:Event):void{

    //Loading the data of XML1 to some variable which i use application wide


    urlReq = new URLRequest(PATH_FOR_XML2);
    urlLdr = new URLLoader(urlReq);
    urlLdr.addEventListener(Event.COMPLETE, loadXML2);

}

private function loadXML2(evt:Event):void{
    //Some other operation  goes here say SOMEGREATWORK
}

Try this:

    onCreationComplete = init();


private function init():void{

    //loading first XML

    urlReq = new URLRequest(PATH_FOR_XML1);
    urlLdr = new URLLoader(urlReq);
    urlLdr.addEventListener(Event.COMPLETE, doEvent);

}


private function doEvent(evt:Event):void{

    //Loading the data of XML1 to some variable which i use application wide


    urlReq = new URLRequest(PATH_FOR_XML2);
    urlLdr = new URLLoader(urlReq);
    urlLdr.addEventListener(Event.COMPLETE, loadXML2);

}

private function loadXML2(evt:Event):void{
    //Some other operation  goes here say SOMEGREATWORK
}

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