AS3事件优化



package{
    import flash.events.EventDispatcher;
    import flash.events.IEventDispatcher;
 
    public class ASEventDispatcher extends EventDispatcher{
        private var events:Array
        public function ASEventDispatcher(target:IEventDispatcher=null){
            super(target);
            events=[];
         }
        override public function addEventListener(type:String, listener:Function, useCapture:Boolean=false, priority:int=0, useWeakReference:Boolean=false):void{
 
            events.push({type:type,fun:listener})
            super.addEventListener(type, listener, useCapture, priority, useWeakReference);
        }
        override public function removeEventListener (type:String, listener:Function, useCapture:Boolean = false):void{
               super. removeEventListener(type,listener, useCapture);
              for(var i:int=0;i< ;i++){
                  if( events[i].type==type && events[i].fun==listenner){
                   events.splice(i,1)
               }
            }
      }
        public function dispose():void{
          var ev:Object;
            while(events.length){
               ev=events.pop();
                super.removeEventListener(ev.type,ev.fun);
            }
        }
    }
}