protected override void OnCreate(Bundle savedInstanceState)
        {
            base.OnCreate(savedInstanceState);

            SetContentView(Resource.Layout.Fragments);
            mMapView = FindViewById <NMapView>(Resource.Id.mapView);

            // initialize map view
            mMapView.Clickable            = true;
            mMapView.Enabled              = true;
            mMapView.Focusable            = true;
            mMapView.FocusableInTouchMode = true;
            mMapView.RequestFocus();
        }
        private NMapView mMapView;           // 지도 화면 View

        protected override void OnCreate(Bundle savedInstanceState)
        {
            base.OnCreate(savedInstanceState);

            mMapView = new NMapView(this);
            SetContentView(mMapView);
            mMapView.SetClientId(AppSetting.CLIENT_ID); // 클라이언트 아이디 값 설정
            mMapView.Clickable            = true;
            mMapView.Enabled              = true;
            mMapView.Focusable            = true;
            mMapView.FocusableInTouchMode = true;
            mMapView.RequestFocus();
            //var controller = mMapView.MapController;
            //controller.SetZoomLevel(13);
        }