外部接口 [英] external interface

问题描述

我在java脚本中有一个calc函数，它接受三个整数参数，
以下是AS3代码

  import flash.external.ExternalInterface; 
 var para：Array = new Array（）; 
 send_btn.addEventListener（MouseEvent.CLICK，clickListener）; 
函数clickListener（eventObj：Object）：void {
 para.push（mean.text）; 
 para.push（std.text）; 
 para.push（points.text）; 
 trace（click>+ para）; 
 ExternalInterface.call（calc，para）; 
} 
  

是这样做的正确方法，如何取回3个参数从javascript中返回并将它们显示在flash中？另外，您需要注册您的AS功能，以使其可用容器：

  ExternalInterface.addCallback（callFlash，myASFunction）;然后，从你的容器（JS），你调用AS函数，并传递你想要的任何参数它。 
 
 
 < script language =JavaScript> 
 
 flashObject.callFlash（param1，param2，param3）; 
< / script> 
 
 ... 
 
< object id =flashObject...> 
 ... 
< embed name =flashObject... /> 
< / object> 
  
最后，在AS3中，编写容器回调时将执行的函数： 
 $ b $ pre $函数myASFunction（param1：String，param2：String，param3：String）：void {
 trace（\\ \\ n从JS接收调用：+ param1 + param2 + param3）; 
} 
  

I have a calc function in java script that takes three integer parameters, following is the AS3 code

import flash.external.ExternalInterface;
var para:Array = new Array();
send_btn.addEventListener(MouseEvent.CLICK, clickListener);
function clickListener(eventObj:Object ):void {
    para.push(mean.text);
    para.push(std.text);
    para.push(points.text);
    trace("click > " + para);
    ExternalInterface.call("calc",para );
}    

is this the right way of doing it and how do i get back 3 arguments back from the javascript and display them in flash?

解决方案

In addition, you need to register your AS function so that it's available to the container:

ExternalInterface.addCallback("callFlash", myASFunction);

Then, from your container (JS), you call the AS function and pass whatever parameters you want to it.

<script language="JavaScript"> 

    flashObject.callFlash(param1, param2, param3); 
</script> 

... 

<object id="flashObject"...> 
    ... 
    <embed name="flashObject".../> 
</object>

Lastly, in AS3, you write the function that will be executed when the container "calls back":

function myASFunction(param1:String,param2:String,param3:String):void {
    trace("\n Received call from JS: " + param1 + param2 + param3);
}

这篇关于外部接口的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！