我使用actionscript中的自定义属性创建了自定义事件。我可以使用自定义属性分派一个自定义事件(在Main.mxml中),但我无法在我的应用程序的任何其他位置监听此事件。我试图在自定义组件中听这个事件。收听flex中的自定义事件
当我调试时,我可以确认事件得到正确调度与正确的值。
片段Main.mxml的:
var userid:String = result.charAt(4);
//dispatch a custom event in which we store the userid
var event_userid:MyEvent = new MyEvent(MyEvent.COMPLETE,userid);
dispatchEvent(event_userid);
自定义事件类:
package ownASClass
{
{
//http://stackoverflow.com/questions/1729470/attaching-a-property-to-an-event-in-flex-as3
import flash.events.Event;
public class MyEvent extends Event
{
public static const COMPLETE:String = "MyEventComplete";
public var myCustomProperty:*;
public function MyEvent(type:String, prop:*) :void
{
super(type,true);
myCustomProperty = prop;
}
//override clone() so your event bubbles correctly
override public function clone() :Event {
return new MyEvent(this.type, this.myCustomProperty)
}
}
}
}
我听这个事件在我的自定义组件:
//init gets called as: initialize="init();
protected function init():void
{
//add evt listener for custom event to get userid
this.parentApplication.addEventListener(MyEvent.COMPLETE,getUserid);
//my custom component is part of a viewstack defined in main.mxml
}
protected function getUserid(event:Event):void
{
//do something (but this never gets called)
}
你尝试使用creationComplete =“的init() “而不是?我认为当初始化事件被触发时,this.parentApplication可能不存在(所以侦听器永远不会添加任何东西) – 2012-12-29 19:45:20