PureMVC使用例子

昨天下了PureMVC, 看了一天文档, 迷茫啊, 找例子也没找到, 后来破解了一个看了一下, 大概地写了一个简单的用例, 先算是学习笔记吧, 先把这最简单的例子做法写一下吧( 也不知道这种理解是否正确哦~~汗一个!)
此例环境:
flash cs3
链接PureMVC类<编辑->首选参数->ActionScript->ActioScript 3.0 设置(加上你的下载的PureMVC类包), PureMVC下载地址>
开始动手喽~

1, 在flash里准备一下要显示层的东东:
此例就画了一个背景方框, 添加一个动态的TextField命名为txt, 然后绑定一个类AppTextField.as;
AppTextField.as里需要接收一个字符串并显示出来, 些字符串数据就是来自于数据层的(后面有介绍)
程序代码 程序代码

AppTextField.as

package myapp.view.component{
    import flash.display.Sprite;
    import flash.display.MovieClip;
    import flash.text.TextField;
    
    public class AppTextField extends Sprite{
        
        public function AppTextField(str:String):void{
            txt.text = str;
        }
    }
}


2, 准备数据
建立一个DataProxy.as文件用于存放数据(此例只是一个字符串),此类要继承Proxy实现接口IProxy.
程序代码 程序代码

DataProxy.as

package myapp.model{
    import org.puremvc.as3.patterns.proxy.Proxy;
    import org.puremvc.as3.interfaces.IProxy;

    public class DataProxy extends Proxy implements IProxy{
        private var _info:String;
        static public const NAME:String = "DataProxy";

        public function DataProxy() {
            super(NAME);
            return;
        }

        public function get info():String {
            return "Ok! Is very good!";
        }
    }
}


3.注册启动命令(复合):StartupCommand和两个子命令ModelPrepCommand, ViewPrepCommand(数据初始化和显示层初始化)
程序代码 程序代码

StartupCommand.as

package myapp.controller{
    import org.puremvc.as3.patterns.command.MacroCommand;

    public class StartupCommand extends MacroCommand {
        // 程序开始时执行的 MacroCommand.
        public function StartupCommand() {
            return;
        }
         //添加子Command 初始化 MacroCommand.
        override protected function initializeMacroCommand():void {
            //以下两个命令按先进先出顺序执行;
            addSubCommand(ModelPrepCommand);
            addSubCommand(ViewPrepCommand);
            return;
        }
    }
}

程序代码 程序代码

ModelPrepCommand.as

package myapp.controller{
    import myapp.model.*;
    import org.puremvc.as3.interfaces.ICommand;
    import org.puremvc.as3.interfaces.INotification;
    import org.puremvc.as3.patterns.command.SimpleCommand;

    public class ModelPrepCommand extends SimpleCommand implements ICommand {
        //创建 Proxy 对象,并注册;
        public function ModelPrepCommand() {
            return;
        }
        //由MacroCommand 调用;
        public override  function execute(sender:INotification):void {
            facade.registerProxy(new DataProxy());
            return;
        }
    }
}

程序代码 程序代码

ViewPrepCommand.as

package myapp.controller{
    import myapp.view.*;
    import org.puremvc.as3.interfaces.ICommand;
    import org.puremvc.as3.interfaces.INotification;
    import org.puremvc.as3.patterns.command.SimpleCommand;

    public class ViewPrepCommand extends SimpleCommand implements ICommand {

        public function ViewPrepCommand() {
            return;
        }
        // 创建 Mediator, 并把它们注册到View;  
        public override  function execute(sender:INotification):void {
            var obj:Main;
            obj = sender.getBody() as Main;
            facade.registerMediator(new AlertMediator(obj));
            return;
        }
    }
}


4.创建Mediator对象类AlertMediator.as用于操作具体显示层组件(此例是AppTextField.as)
程序代码 程序代码

AlertMediator.as

package myapp.view{
    import myapp.MyappFacade;
    import myapp.model.DataProxy;
    import myapp.view.component.AppTextField;
    import flash.display.Sprite;
    import flash.display.MovieClip;
    import flash.text.TextField;
    import flash.events.Event;
    import org.puremvc.as3.interfaces.IMediator;
    import org.puremvc.as3.patterns.mediator.Mediator;

    public class AlertMediator extends Mediator implements IMediator {
        private var data:DataProxy;
        static public const NAME:String = "AlertMediator";

        public function AlertMediator(obj:Object) {
            super(NAME, obj);
            data = facade.retrieveProxy(DataProxy.NAME) as DataProxy;
            var t:AppTextField = new AppTextField(data.info);
            main.addChild(t);
        }
        function get main():Main {
            return viewComponent as Main;
        }
    }
}


5.创建建立Command与Notification之间的映射关系类MyappFacade.as
程序代码 程序代码

MyappFacade.as

package myapp{
    import org.puremvc.as3.interfaces.IFacade;
    import org.puremvc.as3.patterns.facade.Facade;

    import myapp.view.*;
    import myapp.model.*;
    import myapp.controller.*;

    // MyApp 程序的 Facade 类
    public class MyappFacade extends Facade implements IFacade {
        //定义 Notification (通知)常量
        public static  const STARTUP:String = "startup";
        public static  const LOGIN:String = "login";

        //得到ApplicationFacade 单例的工厂方法
        public static function getInstance():MyappFacade {
            if ( instance == null ) {
                instance = new MyappFacade( );
            }
            return instance  as  MyappFacade;
        }

        //注册 Command,建立Command 与 Notification 之间的映射
        override protected function initializeController( ):void {
            super.initializeController();
            registerCommand( STARTUP, StartupCommand );
        }

        //启动 PureMVC,在应用程序中调用此方法,并传递应用程序本身的引用
        public function startup( app:Main ):void {
            sendNotification( STARTUP, app );
        }
    }
}


6.创建主文档类Main.as(启动命名)
程序代码 程序代码

Main.as

package {
    import myapp.*;
    import flash.display.*;

    public class Main extends Sprite {
        private var facade:MyappFacade;

        public function Main() {
            facade = MyappFacade.getInstance();
            //执行开始命令;
            facade.startup(this);
            return;
        }
    }
}


可能写的不清不楚啊, 哈~~ 有问题请留言一起探讨吧!
下载此实例



[本日志由 极度鹤 于 2009-01-08 03:33 PM 编辑]
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Tags: PureMVC例子 PureMVC学习 PureMVC
评论: 3 | 引用: 0 | 查看次数: 3995
回复回复ok[2009-10-08 01:37 AM | del]
源文件里还有个 org 包,你怎么不愿意一起上传吖
回复回复pelephone[2009-09-23 11:21 AM | del]
这样写法虽然是用了pureMVC,但耦合度还是蛮高的嘛。
回复回复莱菔子[2008-12-29 02:22 PM | del]
总于看到比较精简的入门代码了,感谢!
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