自定义事件

//CustomEvent .as

package  

{
import flash.events.Event;
/**
* ...
* @author littleJoe
*/
public class CustomEvent extends Event
{
public static const SENDMONEY:String = "sendMoney";
public static const SENDCAR:String = "sendCar";
public static const SENDFLOWER:String = "sendFlower";
public var _info:String;

public function CustomEvent(type:String, info:String)
{
super(type);
_info = info;
}
}

}

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Boy.as

package  
{
import flash.events.EventDispatcher;
import flash.events.Event;

/**
* ...
* @author littleJoe
*/
public class Boy extends EventDispatcher 
{

public function Boy() 
{

}

public function sendMoney():void
{
var info:String = "大把钞票";
var events:CustomEvent = new CustomEvent(CustomEvent.SENDMONEY, info);
this.dispatchEvent(events);
}

public function sendCar():void
{
var info:String = "豪车";
var events:CustomEvent = new CustomEvent(CustomEvent.SENDCAR, info);
this.dispatchEvent(events);
}

public function sendFlower():void
{
var info:String = "鲜花";
var events:CustomEvent = new CustomEvent(CustomEvent.SENDFLOWER, info);
this.dispatchEvent(events);
}
}


}

-----------------------------------------------------------------------

Girl.as

package  
{
/**
* ...
* @author littleJoe
*/
public class Girl 
{

public function Girl() 
{

}

public function replay(info:String):void
{
trace(info);
}

}


}

-----------------------------------------------------------------------

Main.as

package 
{
import flash.display.Sprite;
import flash.events.Event;

/**
* ...
* @author littleJoe
*/
public class Main extends Sprite 
{
private var _boy:Boy;
private var _girl:Girl;

public function Main():void 
{
if (stage) init();
else addEventListener(Event.ADDED_TO_STAGE, init);
}

private function init(e:Event = null):void 
{
removeEventListener(Event.ADDED_TO_STAGE, init);
// entry point

_boy = new Boy();
_girl = new Girl();

_boy.addEventListener(CustomEvent.SENDMONEY, _hand);
_boy.sendMoney();

_boy.addEventListener(CustomEvent.SENDCAR, _hand);
_boy.sendCar();

_boy.addEventListener(CustomEvent.SENDFLOWER, _hand);
_boy.sendFlower();
//通过这个函数来触发该事件,而系统自带的比如鼠标单击
//事件，则由鼠标单击时自动触发。
}

private function _hand(e:CustomEvent):void 
{
_girl.replay("我收到了："+e._info);
}

}

}

-----------------------------------------------------------------------

我收到了：大把钞票
我收到了：豪车
我收到了：鲜花

自定义的事件（CustomEvent）继承Event或者其子类，事件发送者（Boy）继承EventDispatcher