smartinvoke入门系列7——让Flex捕获键盘组合键

在FirstWin.mxml中通过调用addKeyBoardListener方法可以设置键盘监听器，该方法在cn.smartinvoke.gui.SIApplication类中定义，方法说明如下：

 

 public function addKeyBoardListener(listener:Function, target:Object, vk1:int = -1, vk2:int = -1, vk3:int = -1, characher:String = null):void

 

listener:Function      快捷键触发后的回调函数

 

         target:Object         回调函数中this关键字所指代的对象

 

         vk1:int (default = -1)   第一个虚拟键

 

         vk2:int (default = -1)   第二个虚拟键

 

         vk3:int (default = -1)   第三个虚拟键

 

         characher:String (default = null)   字符键

 

如：在FirstWin.mxml中添加如下代码就可以实现键盘监听,

this. addKeyBoardListener(function():void{

Alert.show(“按下了ESC+E”);},this,VirtualKeys.VK_ESCAPE,-1,-1,"E");

 

this. addKeyBoardListener(function():void{

Alert.show(“按下了C”);},this,-1,-1,-1,"C");

 

 

this. addKeyBoardListener(function():void{

Alert.show(“按下了ESC+E”);},this,VirtualKeys.VK_ESCAPE,-1,-1,"E");

 

this.addKeyBoardListener(function ():void{

                                        Alert.show("你按下了 control + shift +K");

},this,VirtualKeys.VK_CONTROL,VirtualKeys.VK_SHIFT,-1,"K");