通过事件实现Application和Module通信

在一个swf中，组件间的交互通信可以直接使用addEventListener和dispatchEvent来完成事件的传递。当然这样的标准做法也适用于Module。通过addEventListener和dispatchEvent在Module发布事件：

 <?xml version="1.0" encoding="utf-8"?>
   <mx:Module xmlns:mx="http://www.adobe.com/2006/mxml" creationComplete="onComplete()">
       <mx:Script>
           <![CDATA[
               import mx.events.DynamicEvent;
    
               [Bindable]private var command:String="";
               private function onComplete():void
               {
                    //从Application订阅
                  var sharedEventDispatcher:IEventDispatcher=systemManager.loaderInfo.sharedEvents;
   
                  sharedEventDispatcher.addEventListener("init",onInit,false,0,true);
                  //通知Application：Module创建完成
                  sharedEventDispatcher.dispatchEvent(new Event(Event.COMPLETE));
              }
    
              private function onInit(event:DynamicEvent):void
              {
                  command=event.data as String;
              }
   
          ]]>
      </mx:Script>
      
       <mx:Panel id="panel" title="Module With Events. {command}" width="400"  height="200"/>
  </mx:Module>

systemManager.loaderInfo.sharedEvents 这个东西挺好的

Application的代码：

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" minWidth="955" minHeight="600">
	<mx:Script>
		<![CDATA[
			import mx.events.DynamicEvent;
			
			private const MODULE_URL:String="com/st/model/MyModule.swf";
			[Bindable] private var moduleLoaded:Boolean;
			
			private function loadModule():void 
			{
				moduleLoader.applicationDomain = new ApplicationDomain(ApplicationDomain.currentDomain);
				
				var sharedEventDispatcher:IEventDispatcher = moduleLoader.loaderInfo.sharedEvents;
				
				sharedEventDispatcher.addEventListener(Event.COMPLETE, onModuleCreated);
				
				moduleLoader.loadModule(MODULE_URL);
				
				moduleLoaded = true;
				
			}
			
			private function onModuleCreated(event:Event):void 
			{
				var sharedEventDispatcher:IEventDispatcher = moduleLoader.loaderInfo.sharedEvents;
				var dynamicEvent:DynamicEvent = new DynamicEvent("init");
				dynamicEvent.data = "Test Title!";
				sharedEventDispatcher.dispatchEvent(dynamicEvent);
			}
			
			private function unloadModule():void 
			{
				moduleLoader.unloadModule();
				moduleLoader.url = null;
				moduleLoaded = false;
			}
			
		]]>
	</mx:Script>
	<mx:HBox>
		<mx:Button label="Load Module" click="loadModule()"/>
		<mx:Button label="Unload Module" click="unloadModule()" enabled="{moduleLoaded}"/>
	</mx:HBox>
	<mx:ModuleLoader id="moduleLoader" y="30" />
</mx:Application>