The purpose of this post is to use a dispatcher class to handle events between all content movies in a project.
For example, in movie A, you want to notify an event to movie B and movie C, instead of using movieA.addEventListener(movieAEvent) in movie B and movie C, now we only need to use simple below code in movie A:
var dispatcher: Dispatcher = new Dispatcher();
dispatcher.dispatchEvent(movieAEvent);
and in movie B and movie C, we use:
var dispatcher: Dispatcher = new Dispatcher();
dispatcher.addEventListener(movieAEvent, eventHandler);
The Dispatcher class can also use for communication between any objects with any instances or the stage. Very simple and useful.
package com.binhdocco.dispatcher {
import flash.events.Event;
import flash.events.EventDispatcher;
import flash.events.IEventDispatcher;
/**
* ...
* @author binhdocco
*/
public class Dispatcher implements IEventDispatcher {
protected static var disp: EventDispatcher;
public function Dispatcher() {
if (disp == null)
disp = new EventDispatcher();
}
/* INTERFACE flash.events.IEventDispatcher */
public function addEventListener(type:String, listener:Function,
useCapture:Boolean = false, priority:int = 0,
useWeakReference:Boolean = false):void{
disp.addEventListener(type, listener, useCapture, priority, useWeakReference);
}
public function dispatchEvent(event:Event):Boolean {
return disp.dispatchEvent(event);
}
public function hasEventListener(type:String):Boolean{
return disp.hasEventListener(type);
}
public function removeEventListener(type:String, listener:Function,
useCapture:Boolean = false):void{
disp.removeEventListener(type, listener, useCapture);
}
public function willTrigger(type:String):Boolean{
return disp.willTrigger(type);
}
}
} |
