flex eventʵÀý

EventArgExtend.as
package myeventhelper
{
public class EventArgExtend
{
public function EventArgExtend()
{
}
public static function create(f:Function,...arg):Function //addEventListener×¢²áʼþ½øÐд«µÝ²ÎÊýµÄ·½·¨
{ //EventArgExtend.create(comB.onGetParentTotal,this)
var F:Boolean = false; //ÈòÎÊý½øÐв¢ÇÒÖ»Ò»´ÎºÏ²¢
var _f:Function = function(e:*,..._arg)
{
_arg = arg;
if(!F)
{
F = true;
_arg.unshift(e); //ÏòÊý×éµÄ¿ªÊ¼²¿Î»¼ÓÈë
}
f.apply(null,_arg); //°Ñ²ÎÊý¶¼·Åµ½Ò»¸öÊý×éÀï,ÔÙ´«½øÈ¥;
}
return _f;
}
public static function toString():String
{
return "Class JEventDelegate";
}
}
} 
MyEventDispatcher.as ×Ô¶¨Òåʼþ·¢ËÍÕßÀà
package myeventhelper
{
import flash.events.EventDispatcher;

import mx.core.UIComponent;
//×Ô¶¨Òåʼþ´¥·¢Àà
public class MyEventDispatcher extends EventDispatcher
{
private static var _instance:MyEventDispatcher;
public static const EXEC_PARENT_METHOD:String="ExecParentMethod"; //Ö´ÐÐParent·½·¨
public static function getInstance():MyEventDispatcher
{
if(_instance==null){
_instance=new MyEventDispatcher();
}
return _instance;
}
public var Source:UIComponent; //ʼþÔ´¶ÔÏó
public var Parsms:Object; //Ö÷ÒªÓÃÓÚ²ÎÊý´«µÝ
}
} 
MyExtendEvent.as ×Ô¶¨ÒåeventÀ©Õ¹Àà
package myeventhelper
{
import mx.events.FlexEvent;
//Óû§×Ô¶¨ÒåʼþÀà
public class MyExtendEvent extends FlexEvent
{
public static const EXEC_BROTHER_METHOD:String="ExecBrotherMethod";//Ö´ÐÐÐֵܷ½·¨

publ