public MainActivity()
        {
            beaconMgr = IBeaconManager.GetInstanceForApplication (this);

            monitorNotifier = new MonitorNotifier ();
            monitoringRegion = new Region (BEACON_ID, UUID, null, null);

            rangeNotifier = new RangeNotifier ();
            rangingRegion = new Region (BEACON_ID, UUID, null, null);
        }