flex_cairngorm_Mvc_HelloWorld

package event
{
	import com.adobe.cairngorm.control.CairngormEvent;

	public class MyEvent extends CairngormEvent
	{
		public static const ACTION:String="ACTION";
		public var message:String;
		public function MyEvent(type:String, bubbles:Boolean=false, cancelable:Boolean=false)
		{
			trace("event");
			super(type, bubbles, cancelable);
		}
		
	}
}

 

我没用service跟 delegates 他两好像只是为了与后台服务了,大概意思就是

控制myControl注册了command(注册了监听器)，

view层当你发出事件时，交给 command 去处理，

command会改变Model 里边的数据

（因为Model与view绑定在一起，所以改变了model里边的数据，

package commad
{
	import com.adobe.cairngorm.commands.ICommand;
	import com.adobe.cairngorm.control.CairngormEvent;
	
	import event.MyEvent;
	
	import model.MyModel;

	public class Mycommand implements ICommand
	{
		public function Mycommand()
		{
		}

		public function execute(e:CairngormEvent):void
		{
			if(e is MyEvent){
				var ep:MyEvent=e as MyEvent;
				var myModelLocator:MyModel=MyModel.getInstance();
				myModelLocator.products=ep.message;
			}else{
				throw new Error;
			}
			
			
		}
		
	}
}

 

view层数据也改变了）

package model
{
	import com.adobe.cairngorm.model.IModelLocator;
	import com.adobe.cairngorm.*;
	[Bindable]
	public class MyModel implements IModelLocator
	{
		private static var instance : MyModel
		public var products : String
		public function MyModel()
		{
			
			if ( instance != null )
          {
          	trace("error");
             throw new CairngormError(
                CairngormMessageCodes.SINGLETON_EXCEPTION, "MyModel" );
          }
          instance = this;
		}
		
		
	   public static function getInstance() : MyModel 
       {
       	  trace("model");
          if ( instance == null )
              instance = new MyModel();
              
          return instance;
        }
     
     }


	
}

 

package MyControl
{
	import com.adobe.cairngorm.control.FrontController;
	import event.MyEvent;
	import commad.Mycommand;
	public class MyControl extends FrontController
	{
		public function MyControl()
		{
			trace("control constractor is called");
			super();
			addCommand(MyEvent.ACTION,Mycommand);
		}
		
	}
}

 

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" xmlns:MyControl="MyControl.*">
	<MyControl:MyControl>
		
	</MyControl:MyControl>
	<mx:VBox>
		
	
	<mx:Button click="dispather()">
		
	</mx:Button>
	<mx:Script>
		<![CDATA[
			import model.MyModel;
			import event.MyEvent;
			import com.adobe.cairngorm.control.CairngormEventDispatcher;
			private var i:int;
			public function dispather():void{
//				new MyModel();
				var myevent:MyEvent=new MyEvent(MyEvent.ACTION);
				myevent.message=i+"";
				
				myevent.dispatch(); //两个方法都可以
//				CairngormEventDispatcher.getInstance().dispatchEvent(myevent);

				i++;
			}
		]]>
	</mx:Script>
	<mx:Text text="{model.MyModel.getInstance().products}">
		
	</mx:Text>
	</mx:VBox>
</mx:Application>

 

 

评论

1 楼 escape_2007 2010-06-17  

不错，不错，简单易懂.