itemRenderer的调度自定义事件

问题描述

我想从定义ItemRenderer派遣一个自定义事件

I'm trying to dispatch a custom event from a custom ItemRenderer

这是我的自定义事件

package events
{
    import customClass.Product;

    import flash.events.Event;

    public class CopyProductEvent extends Event
    {
        public static const COPY_PRODUCT:String = "COPY_PRODUCT";
        public var picked:Prodotti;

        public function CopyProductEvent(type:String, picked:Product)
        {
            super(type);
            this.picked = picked;
        }
    }
}

在的itemRenderer 我有一个函数，它是：

In the itemRenderer I have a function that does that:

        private function sendEvent(o:Product):void
        {
            dispatchEvent(new CopyProductEvent(CopyProductEvent.COPY_PRODUCT,o));
        }

和在主应用程序我有一个火花列表，然后我尝试添加一个事件监听两个应用程序和列表本身，但他们从来没有被称为...

And in the main application I have a spark List and I tried to add an EventListener both to the application and the list itself, but they never be called...

    this.addEventListener(CopyProductEvent.COPY_PRODUCT,
        function(e:Product):void{
            ...
    });

    list.addEventListener(CopyProductEvent.COPY_PRODUCT,
        function(e:Product):void{
            ...
    });

为什么？！？我在哪里做错了？

Why?!? Where am I doing wrong?

这是该函数的事件被正确地分派......我无法拦截它。

The event from the function is dispatched correctly... I can't intercept it..

推荐答案

听起来像是你的事件不会冒泡。

Sounds like your event isn't bubbling.

添加气泡参数（默认情况下，为假）在你的自定义事件的构造函数：

Add the bubbles argument (which by default, is false) in your Custom event constructor:

public function CopyProductEvent(type:String, picked:Product, bubbles:Boolean = true)
        {
            super(type,bubbles);
            this.picked = picked;
        }

在事件冒泡在AS3一个很好的解释可以在这里找到：事件冒泡在AS3

A nice explanation on Event bubbling in AS3 can be found here:Event Bubbling in AS3

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