如何使用 as3 类访问舞台上的电影剪辑? [英] How do I access a movieClip on the stage using as3 class?

问题描述

public class MyClass extends MovieClip {
            public function MyClass():void {
                my_mc.addEventListener(MouseEvent.CLICK, action);
            }
            private function action(e:MouseEvent):void {
                trace("cliked");
            }
        }

时间线代码

 var myClass:MyClass = new MyClass();
    addChild(myClass);

我无法访问 my_mc(放置在 FLA 中)影片剪辑.我如何访问?

I can't able to access the my_mc(placed in FLA) movieclip. How do I access?

推荐答案

试试这个:

public class MyClass extends MovieClip
{
    public function MyClass()
    {
        if (stage) init();
        else addEventListener(Event.ADDED_TO_STAGE, init);

    }// end function

    private function init(e:Event = null):void 
    {
        removeEventListener(Event.ADDED_TO_STAGE, init);

        var myMc:MovieClip = stage.getChildByName("my_mc") as MovieClip;
        // var myMc:MovieClip = parent.getChildByName("my_mc") as MovieClip;

        myMc.addEventListener(MouseEvent.CLICK, onMyMcClick)

    }// end function

    private function onMyMcClick(e:MouseEvent)
    {
        trace("clicked");

    }// end function

}// end class

如果这不起作用(我认为不会)，那是因为您的 my_mc 显示对象不是舞台的子级，而是 my_mc 显示对象的子级代码>主时间线.如果是这样，那么只需注释掉上面代码中的以下语句:

If this doesn't work(which I don't think it will), its because your my_mc display object isn't a child of the stage, but the child of an instance of MainTimeline. If so, then simply comment out the following statement in the above code:

var myMc:MovieClip = stage.getChildByName("my_mc") as MovieClip;

并取消注释上面代码中的以下语句:

and uncomment the following statement in the above code:

// var myMc:MovieClip = parent.getChildByName("my_mc") as MovieClip;

如果我的假设是正确的，my_mc 和 myClass 显示对象共享同一个父对象.

If my assumption is correct, the my_mc and myClass display objects share the same parent.

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