Question

Hai am trying to load the variables from parent(flash) to child(flash).Its working fine,.

parent swf:(flash)

var parentMessage:String = "Hello";
var swf:MovieClip;
var l:Loader = new Loader();
l.contentLoaderInfo.addEventListener(Event.COMPLETE, swfLoaded);
l.load(new URLRequest("child.swf"));
function swfLoaded(e:Event):void
{
swf = MovieClip(e.target.content);
swf.passVariable(parentMessage);
}

child swf(flex)

public var childMessage:String;
function passVariable(_msg:String):void
{
childMessage = _msg;
trace("message passed from parent to child: " + childMessage);
}

But while communicating with flash to flex its not loaded.

Error Message

ReferenceError: Error #1069: Property passVariable not found on
_child_mx_managers_SystemManager and there is no default value. at Function/()

Kindly help me .

Update

parent.swf in flash

 var parentMessage:String = "Hello";
 var swf:MovieClip;
 var l:Loader = new Loader();
 l.load(new URLRequest("asd.swf"));
 swf.addEventListener("applicationComplete", swfLoaded);
 function swfLoaded(e:Event):void
 {
 var app:DisplayObject = swf.getChildAt(1);
 app["passVariable"](parentMessage);
 }

Child.swf in flex

<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" 
           xmlns:s="library://ns.adobe.com/flex/spark" 
           xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600"  addedToStage="application1_addedHandler(event)" >
<fx:Script>
    <![CDATA[
        public var childMessage:String;

        protected function application1_addedHandler(event:Event):void
        {

            passVariable(childMessage);
        }
        public function passVariable(_msg:String):void
        {

            childMessage = _msg;
            trace("First message passed from parent to child: " + childMessage);
}

    ]]>
</fx:Script>

ErrorMessage

   TypeError: Error #1009: Cannot access a property or method of a null object reference.
at Untitled_fla::MainTimeline/frame1()
   TypeError: Error #1009: Cannot access a property or method of a null object reference.
at mx.managers::FocusManager/activate()
at spark.components::Application/initManagers()
at spark.components::Application/initialize()
at asd/initialize()
at mx.managers.systemClasses::ChildManager/childAdded()
at mx.managers.systemClasses::ChildManager/initializeTopLevelWindow()
at mx.managers::SystemManager/initializeTopLevelWindow()
at mx.managers::SystemManager/http://www.adobe.com/2006/flex/mx/internal::kickOff()
at       mx.managers::SystemManager/http://www.adobe.com/2006/flex/mx/internal::preloader_completeHandler()
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at mx.preloaders::Preloader/timerHandler()
at flash.utils::Timer/_timerDispatch()
at flash.utils::Timer/tick()

Answer 1

In Flex applications top most sprite is SystemManager. And Application object is added as a child of SystemManager. So, you’ll need to get it.

swf = MovieClip(e.target.content);
swf.addEventListener("applicationComplete", onApplicationReady);

private function onApplicationReady(evt:Event)
{
    var app:DisplayObject = swf.getChildAt(0);
    app["passVariable"](...);
}

Note, that Application is added on “applicationComplete” event.

Read more about loading applications.