活动结束后获得由MovieClip的包含（父）类 [英] Get composed MovieClip's containing (parent) class after event

问题描述

我有一个在父（非显示对象）类组成的影片剪辑。我们对注册的影片剪辑事件侦听器 - a。单击处理程序，例如

I have a MovieClip that is composed in a parent (non-display object) class. We register an event listener against that movieclip - a CLICK handler for example.

使用将event.target 我可以从事件处理程序中得到一个引用影片剪辑。但我怎么能拉一提及其构成的类？

With event.target I can get a reference to the MovieClip from within the event handler. But how can I pull a reference to its composing class?

我可以简单地对动态MovieClip类添加一个父类属性，但我不知道是否有这样做的更优雅/惯用的方式，我应该考虑？

I could simply add a "parentClass" property on the dynamic MovieClip class, but I'm wondering if there's a more elegant/idiomatic way of doing it that I should consider?

推荐答案

如果创建你的影片剪辑的类不是显示对象，然后它真的不能被认为是其母公司。父元素将是，你的影片剪辑附加到。所有这一切的创作类包含一个引用一个对象，只是一样的，如果你再参考其他地方的影片剪辑。

If the class that creates your MovieClip is not a display object then it cannot really be considered its parent. The parent element will be that which your MovieClip is attached to. All that the creating class contains is a reference to an object, just the same as if you then refer to the MovieClip elsewhere.

我的preferred的方法是创建一个子类影片剪辑，可以包含引用创建类，你会再使用，而不是影片剪辑。

My preferred way would be to create a descendant class of MovieClip that can contain a reference to the creating class, which you would then use instead of MovieClip.

package {
    import flash.display.MovieClip;

    public class MovieClipWithRef extends MovieClip
    {
        private var _parentRef:Object;  //obviously cast this as accurately as possible

        public function MovieClipWithRef($ref:Object):void
        {
            _parentRef = $ref;
        }

        public function get parentRef():Object
        {
            return _parentRef;
        }
        //no setter makes this property read-only once set by the constructor
    }
}

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