Module Interface Problems

Question

I'm having a problem passing variables from one module to
another via an interface.
I have an application that calls a module when it enters a
specific state, which works fine. The module is loaded through
<mx:ModuleLoader id="modMyModule1" url="myModule1.swf"> and
it works as expected.
Within this module, I have a button that when pressed, calls
a second module via a module loader, using an interface. I need an
interface, as there is a variable that I need to pass between these
two modules. Clicking the button runs a couple of functions, ending
with:
currentState='Results';
modMyModule2.url='myResults.swf";
and the states look like:
<mx:states>
<mx:State name="Results">
<mx:AddChild>
<mx:ModuleLoader id="modMyModule2"
ready="readyModule(event)" error="modErrorHandler(event)" />
</mx:AddChild>
</mx:State>
</mx:states>
So when the module is ready, the following code is invoked in
modMyModule1:
private function readyModule(evt:ModuleEvent):void
var ichild:* = modMyModule2.child as IResults;
if(ichild != null) { ichild.searchResults =
arrSearchResults; trace("NOT NULL"); }
else { trace("NULL!"); }
modMyModule2 contains 'implements="IResults"' in it's root
module tag, and IResults is defined as follows:
package
import flash.events.IEventDispatcher;
import mx.collections.ArrayCollection;
public interface IResults extends IEventDispatcher
function set searchResults(arrResults:ArrayCollection):void;
function get searchResults():ArrayCollection;
I have corresponding getter and setter functions in my
modMyModule2, but they never seem to get called! For some reason,
the interface is always failing, and therefore in my readyModule()
function in the first module, it always traces "NULL".
I can access the required variable in the second module via
parentApplication.modMyModule1.child.arrSearchResults, but I'd
prefer to do it via the interface.
I've gone through all the docs, but I can't see what I've
done that's different from anything in them, except for the fact
that I'm calling a module from a module via an interface.
Can anyone shed some light on this at all?
Cheers,
K.

Answer 1

I don't have a solution to your problem, but I can point you
somewhere. The documentation team has released the module
documentation, but I think it is only currently available at their
blog (as the documentation will be released later).
http://blogs.adobe.com/flexdoc/
It should be the first entry of the blog. I noticed that one
of the data points mentioned inter-module communication, -
hopefully that is what you are looking for.
Good Luck,
Andy