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Calling Javascript functions from Flex |
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I've tried several different ways of using JavaScript and flex together, mostly by imbedding the JavaScript into an ActionScript method, and calling that, which in turn invokes the JS.
This always seemed kind of messy to me, and wade the code very intermingled, it also meant that any changes to the JS meant re-compiling the Flex application.
After a little searching I found a better way!
Your JavaScript is written within your html template, and your Flex app uses the 'flash.external' package. This package allows the swf to call methods in the wrapper.
So in your Flex application
2<![CDATA[
3import flash.external.ExternalInterface;
4
5/*
6Calls javascript on html page
7*/
8
9public function callExternalJS():void {
10var functionName:String = "doJS";
11var methodName:String = ExternalInterface.call(functionName, arguments);
12}
13]]>
14</mx:Script>
You can pass arguments in the regular JavaScript way of separating them with commas.
Call them in whichever way you need to IE:
Then simply stick your JavaScript in your page like you would in normally!
2 function doJS()
3 {
4 // whatever
5 }
6</SCRIPT>
Make sure that your 'object' and 'embed' code has an 'id' attribute, otherwise it doesn't work.
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