ActionScript 3键盘没有对准焦点？

Question

I can't seem to move my Main_C using the keyboard. I do have a menu in the starting of the game. How can I make my keyboards work?

Answer 1

If you are in a Flex application, use the FocusManager. Assuming that "myMenuItem" is the object which should have focus:

focusManager.setFocus(myMenuObject);

If you are in an AS3 project:

stage.focus = myMenuObject;

Further on, if you want to move through the menu items, you may catch keyboard input to simulate a movement through the menu:

stage.addEventListener(KeyboardEvent.KEY_DOWN, keyDownHandler);

private function keyDownHandler(event:KeyboardEvent):void {
    trace(event.keyCode);
    // Handle movement for corresponding arrow code
}