【转】Air 右键菜单和系统托盘

<?xml version="1.0" encoding="utf-8"?>
<mx:WindowedApplication xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" alwaysInFront="true" width="314"
    height="420" titleBarColors="[0x000000,0x888888]" applicationComplete="initApplication();">
    <mx:Script>
        <![CDATA[
        import mx.events.CloseEvent;
        import mx.controls.Alert;
        private var dockImage:BitmapData;
        public function initApplication():void{  
                var loader:Loader=new Loader();  
                loader.contentLoaderInfo.addEventListener(Event.COMPLETE,prepareForSystray);// 这里就是完成第一步的任务须,这个prepareForSystray就是对托盘的生在和菜单的控制  
                loader.load(new URLRequest("images/regt.png"));//这里先要加载托盘图标的小图片  
                this.addEventListener(Event.CLOSING,closingApplication);//设置关闭体的事件  
            }  

        //关闭窗体的事件  

            public function closingApplication(event:Event):void{  

                event.preventDefault();//阻止默认的事件  
                Alert.yesLabel="Close";  
                Alert.noLabel="Mini";  
                Alert.show("Close or Minimize?", "Close?", 3, this, alertCloseHandler);//弹出自定义的选择框, 关于Alert的详细用法,参考官方文档或我前面的相关文章.  
            }  

        //根据用户的选择来判断做什么,这里选择是就是关闭,选择否(Mini)就是最小化到托盘.  

        private function alertCloseHandler(event:CloseEvent):void{  

            if(event.detail==Alert.YES){  
                closeApp(event);  
            }else{  
                dock();//最小化到托盘  
            }  
        }  

    //生成托盘  

        public function prepareForSystray(event:Event):void{  
            dockImage=event.target.content.bitmapData;  
            if(NativeApplication.supportsSystemTrayIcon){  
               setSystemTrayProperties();//设置托盘菜单的事件  
                SystemTrayIcon(NativeApplication.nativeApplication.icon).menu=createSystrayRootMenu();//生成托盘菜单  
            }     
        }  

        public function createSystrayRootMenu():NativeMenu{  
            var menu:NativeMenu = new NativeMenu();  
            var openNativeMenuItem:NativeMenuItem = new NativeMenuItem("Open");//生成OPEN菜单项  
            var exitNativeMenuItem:NativeMenuItem = new NativeMenuItem("Exit");//同理  
            openNativeMenuItem.addEventListener(Event.SELECT, undock);  
            exitNativeMenuItem.addEventListener(Event.SELECT, closeApp);//添加EXIT菜单项事件  
            menu.addItem(openNativeMenuItem);  
            menu.addItem(new NativeMenuItem("",true));//separator   
            menu.addItem(exitNativeMenuItem);//将菜单项加入菜单  
            return menu;  
        }  

        //设置托盘图标的事件  

        private function setSystemTrayProperties():void{  
            SystemTrayIcon(NativeApplication.nativeApplication .icon).tooltip = "TurboSquid squidword";  
            SystemTrayIcon(NativeApplication.nativeApplication .icon).addEventListener(MouseEvent.CLICK, undock);  
            stage.nativeWindow.addEventListener(NativeWindowDisplayStateEvent.DISPLAY_STATE_CHANGING, nwMinimized);   
        }  

//最小化窗体  

        private function nwMinimized(displayStateEvent:NativeWindowDisplayStateEvent):void {  
            if(displayStateEvent.afterDisplayState == NativeWindowDisplayState.MINIMIZED) {  
                displayStateEvent.preventDefault();//阻止系统默认的关闭窗体事件  
                dock();//将程序放入托盘  
            }  
        }  

        //将本地应用程序放到托盘  

        public function dock():void {  
            stage.nativeWindow.visible = false; //设置本地程序窗体不可见  
            NativeApplication.nativeApplication.icon.bitmaps = [dockImage];//设置托盘的图标  
        }  

        //激活程序窗体  

        public function undock(evt:Event):void {  
           stage.nativeWindow.visible = true;//设置本地程序窗体可见  
           stage.nativeWindow.orderToFront();//设置本地程序窗体到最前端  
           NativeApplication.nativeApplication .icon.bitmaps = [];//将托盘图标清空  
        }  

        //关闭程序窗体  

        private function closeApp(evt:Event):void {  
            stage.nativeWindow.close();  
        }      
        ]]>
    </mx:Script>   
</mx:WindowedApplication>