Adobe AIR右键菜单和系统托盘（Tray)功能以及实现方法
右键菜单：
var mainMenu:NativeMenu = new NativeMenu();
var minimizeMenu:NativeMenuItem = new NativeMenuItem("Minimize");
var maximizeMenu:NativeMenuItem = new NativeMenuItem("Maximize");
var sepMenu:NativeMenuItem = new NativeMenuItem("",true);
var restoreMenu:NativeMenuItem = new NativeMenuItem("Restore");
var closeMenu:NativeMenuItem = new NativeMenuItem("Close");
minimizeMenu.addEventListener(Event.Select, handleMenuClick);
maximizeMenu.addEventListener(Event.Select, handleMenuClick);
restoreMenu.addEventListener(Event.Select, handleMenuClick);
closeMenu.addEventListener(Event.Select, handleMenuClick);
mainMenu.addItem(minimizeMenu);
mainMenu.addItem(maximizeMenu);
mainMenu.addItem(sepMenu);
mainMenu.addItem(restoreMenu);
mainMenu.addItem(closeMenu);
this.contextMenu=mainMenu;
系统托盘:
var sysTray:SystemTrayIcon =
NativeApplication.nativeApplication.icon as SystemTrayIcon;
sysTray.tooltip = "测试tray";
//
sysTray.menu = this.contextMenu;
sysTray.addEventListener(MouseEvent.CLICK,trayClick);
如何将应用程序最小化到托盘,然后给托盘图标加右键菜单以及添加相应的事件,来激活应用程序窗体.
整个流程:
1. 初始化应用时改变系统默认情况下以系统X事件的处理.
2. 定义新处理逻辑(本文是弹出对话框)
3. 生成托盘图标并置于状态栏
4. 给托盘图标加上右键菜单(本文是exit,和open两项)
5. 给菜单加上相应的事件
6. 大功告成
主要方法:
private var dockImage:BitmapData;
//初始化Application里调用此方法,完成上面的第一步:
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("assets/images/32.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();
}