将 flashvars 样式的参数传递给加载的 SWF [英] Passing flashvars-style parameters to a loaded SWF

问题描述

我有一个 Flex 3 应用程序(播放器 v9)，它加载 Flash SWF(AS3，也是播放器 v9)并且需要动态地向它传递运行时已知的参数集合.这些参数通常通过 HTML 页面中的 flashvars 元素传递.嵌入的电影通过 loaderInfo.parameters 对象访问这些参数.

I have a Flex 3 app (player v9) which loads a Flash SWF (AS3, also player v9) and needs to dynamically pass it a collection of parameters which are known at run-time. These are parameters that are normally passed via the flashvars element in an HTML page. The embedded movie accesses these parameters via the loaderInfo.parameters object.

我尝试过使用 SWFLoader 和 Loader 类，但没有成功传递参数.

I've tried using SWFLoader and Loader classes with no success in param-passing.

相关详情:

• 它是一个本地程序，不能依赖查询字符串参数.
• 我已经在嵌入代码中设置 loaderInfo.parameters["foo"] = "123" 搞砸了，但参数似乎永远不会出现在嵌入的电影中.
• 我不能在嵌入的电影中放置额外的参数传递机制，因为它们是由第三方创建的.

• It's a local program, and cannot rely on query string parameters.
• I've mucked with setting loaderInfo.parameters["foo"] = "123" from the embedding code, but the parameter never seems to wind up in the embedded movie.
• I cannot place extra parameter-passing machinery in the embedded movie(s), as they are created by third parties.

推荐答案

在 URL 中传递这个参数无济于事，因为它们是在 html-wrapper 中使用 javascript 代码获取的.'flashVars' 参数是使用 Application.application.parameters 获取的，因此，您必须在您的情况下手动设置这些参数.

Passing this params in URL won't help, because they're taken using javascript code in the html-wrapper. The 'flashVars' params are taken using the Application.application.parameters, so, you have to set these params manually in your case.

如果您使用 SWFLoader 加载另一个应用程序，则应创建对象，该对象将代表加载的应用程序并应用您需要的所有内容:

If you are using SWFLoader to load another app, you should create the object, that will represent the application loaded and apply all you need:

<mx:Script>
    <![CDATA[
        import mx.managers.SystemManager;
        import mx.controls.Alert;
        import mx.events.FlexEvent;

        private var loadedApp:Application;

        private function onLoadComplete(event:Event):void {
            var smAppLoaded:SystemManager = SystemManager(event.target.content);
            smAppLoaded.addEventListener(FlexEvent.APPLICATION_COMPLETE, onLoadedAppComplete);
        }

        private function onLoadedAppComplete(event:FlexEvent):void {
            try {
                loadedApp = Application(event.target.application);
                if(!loadedApp) throw new Error();

                loadedApp.parameters["param1"] = "value1";
            } catch (e:Error) {
                Alert.show("Failed to get application loaded.", "Error", Alert.OK); 
            }
        }

        private function onLoadError():void {
            Alert.show("Failed to load an application.", "Error", Alert.OK);
        }

    ]]>
</mx:Script>

<mx:SWFLoader 
    width="100%" height="100%"
    source="./AppToLoad.swf" 
    complete="onLoadComplete(event)" 
    ioError="onLoadError()" securityError="onLoadError()" />

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