如何创建多种类型的&自定义事件的参数？ [英] How can I create multiple types & params for custom events?

问题描述

我有一个自定义事件类，想插入多个参数（例如本机事件：MOUSE_UP，CLICK，ROLL_OVER）。到目前为止，这是我的代码：

I have a custom event class and want to insert multiple parameters (like the native events: MOUSE_UP, CLICK, ROLL_OVER). Here's my code so far:

package
{
    import flash.events.Event;

    public class MenuGeneratorEvent extends Event
    {
        public static const PASS_PARAMS:String = "passParams";

        public var param1:String = new String();

        public function MenuGeneratorEvent(type:String, str:*, bubbles:Boolean = false,
                                                cancelable:Boolean = false):void
        {
            this.param1 = str;

            super(type, bubbles, cancelable);
        }

        override public function clone():Event
        {
            return new MenuGeneratorEvent(type, param1, bubbles, cancelable);
        }
    }
}

我正在使用Flash Professional CC2015。可以这样做吗？

I'm using Flash Professional CC 2015. Is it possible to do this?

推荐答案

只需将它们添加为construcor参数，并使它在外部可见，就像您所做的一样与 param1 一起使用。
如果必须传递许多参数作为构造函数参数，则可以始终将它们包装在另一个对象中。如果您想直接从事件对象访问它们，则只需创建它们的访问器即可：

Just add them as construcor arguments and make it visible outside just like you did with param1. If you have to many parameters to pass as constructor arguments you can always wrap them inside another object. An if you want have access to them directly from event object just create accessors to them:

public class MenuGeneratorEvent extends Event
{
    public static const PASS_PARAMS:String = "passParams";

    private var params:Object;

    public function MenuGeneratorEvent(type:String, params:Object, bubbles:Boolean = false,
                                            cancelable:Boolean = false):void
    {
        this.params = params;

        super(type, bubbles, cancelable);
    }

    override public function clone():Event
    {
        return new MenuGeneratorEvent(type, params, bubbles, cancelable);
    }

    public function get param1():String{return params.param1;}
    public function get param2():Number{return params.param2;}
    public function get param3():Object{return params.param3;}
}

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