Flex 怎么相应的键盘事件

SystemManager.keyDownHandler 监听整个Flex的keyDownHandler、mouseEventHandler

override protected function keyDownHandler(event:KeyboardEvent):void

{

//super.keyDownHandler(event);

//如果按下了回车

if(event.keyCode==13)

{

//执行顺序
（tab 键就跳转了）

// UI---------->SystemManager.keyDownHandler----->FocusManager.keyDownHandler---------->自定义类重写的.keyDownHandler

// (类是否实现了IFocusManager)

//根据tabindex 移动焦点

focusManager.getNextFocusManagerComponent().setFocus();

}