键盘事件的事件侦听器不在模块中侦听

问题描述

我在一个包含视图堆栈及其子项的模块中执行此操作.在模块的创建完成时调用 onInit().

I am doing this inside a module containing viewstacks and their childs.Calling onInit() on creationComplete of module.

当我在此模块的视图堆栈的其中一个子项中并按 Enter 键时，它根本不会调用侦听器函数(其中的 bp 不会被击中).

When I am inside one of the childs of a viewstack of this module and press Enter, it doesnt not invoke the listener function at all (bp inside this does not get hit).

private function onInit():void{
 this.addEventListener(KeyboardEvent.KEY_DOWN, keyPressed);
}

private function keyPressed(evt:KeyboardEvent):void
           {//this breakpoint never gets hit on pressing a key in screen
               if (evt.keyCode == Keyboard.ENTER)
               {
                //do this
                   }
           }

推荐答案

您应该向舞台对象添加关键侦听器:

You should add key listeners to stage objects:

private function onInit():void{
    this.stage.addEventListener(KeyboardEvent.KEY_DOWN, keyPressed);
}

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