Listener to wait for an instance?

1

Hi, I am wasting a lot of time trying to understand why I am instantiating an object that doesn’t want to be instantiated!

I explain: I have this code in the main class


...
   centralButton = menu_mc.automaticCentral_mc;
trace ("central button is "+centralButton);
 
trace("main");
   ringTimerObj = new RingTimer(lastingCountDown);
   ringTimerObj.addEventListener(Event.ADDED, initRingTimer);
trace("main2");
...


 
private function initRingTimer(e:Event) {
   ringTimerObj.removeEventListener(Event.ADDED, initRingTimer);
   ringTimerObj.initRingTimer();
}

while in the RingTimer class I have

 
public function RingTimer(_betSeconds : uint)           // constructor
{
   betSeconds  = _betSeconds;
   ringTimer  = new Timer(1000, 0);
   ringTimer.addEventListener(TimerEvent.TIMER, updateCountDown, false, 0, true);
}
 
public function initRingTimer()
{
trace("ciao");
trace("parent = "+this.parent);
   rouletteMenu = (this.parent as MovieClip).centralButton;
trace("ciao2");
}

I do not receive any kind of error, but the trace is

 
central button is [object automaticCentral_mc_153]
main
main2

“ciao” and “ciao2” are absent.

At first I didn’t use the listener, it was obvious for me that the instantiation of RingTimer didn’t need it, but I received the trace

 
central button is [object automaticCentral_mc_153]
main
ciao
parent = null
TypeError: Error #1009: Cannot access a property or method of a null object reference.
 at RingTimer/initRingTimer()
 at Main/initRingTimer()
 at Main/postConfigLoad()
 at Main/xmlConfigLoaded()
 at flash.events::EventDispatcher/dispatchEventFunction()
 at flash.events::EventDispatcher/dispatchEvent()
 at flash.net::URLLoader/onComplete()

as if RingTimerObj hasn’t still been instantiated.

What’s happening?! It looks like I need to wait an event to proceed with initRingTimer, but… am I using the wrong event? Do I really need an event? Am I doing something wrong?