Flex Mobile Event Listener not firing

I'm having trouble getting an event listener to work in a mobile app (Built in Flash Builder 4.5, Flex SDK 4.5.1)

I have an event class called BMS_Event.as which looks like this:

package model
{
import flash.events.Event;

public class BMS_Event extends Event
{

    public static var COMPLETE_EVENT:String = "BMSData_Complete";

    public static var FAULT:String = "BMSDatafault";

    public var data:*;

    public function BMS_Event(type:String, data:*=null, bubbles:Boolean=false, cancelable:Boolean=false)
    {
        this.data = data;
        super(type, bubbles, cancelable);
    }

}

}

A class to dispatch the event:

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

import model.BMS_Event;

public class BMSDataParser extends EventDispatcher
{
    public function BMSDataParser()
    {
        trace("BMSDataParser function");
        var BMSDataCompleteEvent:BMS_Event开发者_如何学编程 = new BMS_Event(BMS_Event.COMPLETE_EVENT);
        dispatchEvent(BMSDataCompleteEvent);
    }
}

}

And in my Mobile App view, two functions to call the eventparser, and then an eventlistener which listens for the complete event:

    import model.BMSDataParser;
import model.BMS_Event;

protected function getData():void
{
    var parser:BMSDataParser = new BMSDataParser();
    parser.addEventListener(BMS_Event.COMPLETE_EVENT, bmstest);
}

private function bmstest(e:BMS_Event):void
{
    trace("bmstest function");
}

The problem I'm having is that the event listener isn't firing, everything works fine up until that point. It does work in a web application, but for whatever reason not a mobile app. I'm new to mobile app development - is this a limitation of AIR mobile Apps?

Any help/suggestions greatly appreciated. Thanks

Maybe make var parser:BMSDataParser a private class variable, and in the creationComplete or initialized events of the class add parser.addEventListener(BMS_Event.COMPLETE_EVENT, bmstest);

One more thing: if your using ViewNavigatorApplication with Views, the views are not created until they are pushed onto the view stack e.g. navigator.pushView(PayNowView);, so any listeners will not be activated unless they are displayed first