Passing data between Actionscipt 3 and Javascript

Here are a few useful code snippets for passing data between Actionscipt 3 and Javascript.

Calling a function within Actionscript from Javascript (Flash object on page defined as “FlashObject”)

Javascript:

getFlashMovie("FlashObject").sendRequestFromJS(dataString);

function getFlashMovie(obj) {
	var isIE = navigator.appName.indexOf("Microsoft") != -1;
	return (isIE) ? window[obj] : document[obj];
}

Receiving data (dataString) in Actionscript

Flash:

function flashFunction(dataString:String):void {
	// do something
}

ExternalInterface.addCallback("sendRequestFromJS", flashFunction);

Passing data from Flash to Javascript

Flash:

function sendRequestFromFlash(dataString:String):void {
	var result:Object = ExternalInterface.call("JSFunction", dataString);
}

sendRequestFromFlash("test");

Javascript:

function JSFunction(dataString) {
// do something
}

Checking the size of incoming data (dataString) in Flash:

var ba:ByteArray = new ByteArray();
ba.writeUTFBytes(dataString);
ba.position = 0;
var dataSize:uint = ba.length;
trace(dataSize);

This entry was posted on Thursday, August 28th, 2008 at 4:55 pm and is filed under Announcements, Code & Tools. You can leave a note follow any responses through the RSS 2.0 feed.