public override void SelectionChanged (XuniCalendar sender, CalendarRange selectedDates)
			{
				NSDateFormatter dateFormatter = new NSDateFormatter();
				dateFormatter.DateFormat = "dd/MM/yyyy";
				maskedField.Text = dateFormatter.ToString (sender.NativeSelectedDate);
				d.IsDropDownOpen = false;
			}
Example #2
0
 public static string ToLocalizedTimeString (this DateTime self)
 {
     var fmt = new NSDateFormatter () {
         DateStyle = NSDateFormatterStyle.None,
         TimeStyle = NSDateFormatterStyle.Short,
     };
     return fmt.ToString (self.ToNSDate ());
 }
        public UIDateTextField(IntPtr handle)
            : base(handle)
        {
            datePicker = new UIDatePicker();

            dateFormatter = new NSDateFormatter();
            dateFormatter.DateStyle = NSDateFormatterStyle.Long;

            // Set up the date picker
            datePicker.Mode = UIDatePickerMode.Date;
            datePicker.MinimumDate = DateTime.Today.AddMonths (-2);
            datePicker.MaximumDate = DateTime.Today;

            datePicker.ValueChanged += (s, e) => {
                this.Text = dateFormatter.ToString((s as UIDatePicker).Date);
                this._currentDate = DateTime.SpecifyKind((s as UIDatePicker).Date, DateTimeKind.Unspecified);
            };

            // Setup the dateToolbar
            UIToolbar dateToolbar = new UIToolbar();
            dateToolbar.BarStyle = UIBarStyle.Black;
            dateToolbar.Translucent = true;
            dateToolbar.SizeToFit();

            // Create a 'done' button for the dateToolbar
            UIBarButtonItem dateDoneButton = new UIBarButtonItem("Done", UIBarButtonItemStyle.Done, (s, e) => {
                this.ResignFirstResponder();
            });

            // Create flexible space
            UIBarButtonItem dateFlex = new UIBarButtonItem(UIBarButtonSystemItem.FlexibleSpace);

            // Add button and dateFlexible space to the dateToolbar
            dateToolbar.SetItems(new UIBarButtonItem[]{dateFlex, dateDoneButton}, true);

            this.InputView = datePicker;

            this.InputAccessoryView = dateToolbar;
        }
        async void DatePickerButtonTapped (object sender, EventArgs e)
        {
            var modalPicker = new ModalPickerViewController(ModalPickerType.Date, "Select A Date", this)
            {
                HeaderBackgroundColor = UIColor.Red,
                HeaderTextColor = UIColor.White,
                TransitioningDelegate = new ModalPickerTransitionDelegate(),
                ModalPresentationStyle = UIModalPresentationStyle.Custom
            };

            modalPicker.DatePicker.Mode = UIDatePickerMode.Date;

            modalPicker.OnModalPickerDismissed += (s, ea) => 
            {
                var dateFormatter = new NSDateFormatter()
                {
                    DateFormat = "MMMM dd, yyyy"
                };

                PickedLabel.Text = dateFormatter.ToString(modalPicker.DatePicker.Date);
            };

            await PresentViewControllerAsync(modalPicker, true);
        }
Example #5
0
 protected override string Convert(DateTime value, Type targetType, object parameter, CultureInfo culture)
 {
     return(_dateFormatter?.ToString((NSDate)value) ?? value.ToString(CultureInfo.CurrentUICulture));
 }
                /// <summary>
                /// Updates the text field values representing different date styles.
                /// </summary>
                private void updateDateResult ()
                {
                        NSDate theDate = datePickerControl.DateValue;
                        
                        if (theDate != null) {
                                NSDateFormatter formatter = new NSDateFormatter ();
                                
                                string formattedDateString;
                                
                                                                /* some examples:
				formatter.DateStyle = NSDateFormatterStyle.None;		// <no date displayed>
				formatter.DateStyle = NSDateFormatterStyle.Medium;		// Jan 24, 1984
				formatter.DateStyle = NSDateFormatterStyle.Short;		// 1/24/84
				formatter.DateStyle = NSDateFormatterStyle.Long;		// January 24, 1984
				formatter.DateStyle = NSDateFormatterStyle.Full;		// Tuesday, January 24, 1984
				
				formatter.TimeStyle = NSDateFormatterStyle.None;		// <no time displayed>
				formatter.TimeStyle = NSDateFormatterStyle.Short;		// 2:44 PM
				formatter.TimeStyle = NSDateFormatterStyle.Medium;		// 2:44:55 PM
				formatter.TimeStyle = NSDateFormatterStyle.Long;		// 2:44:55 PM PDT
				formatter.TimeStyle = NSDateFormatterStyle.Full;		// 2:44:55 PM PDT
				*/


formatter.DateStyle = NSDateFormatterStyle.Short;
                                formatter.TimeStyle = NSDateFormatterStyle.None;
                                formattedDateString = formatter.ToString (theDate);
                                dateResult1.StringValue = formattedDateString;
                                
                                formatter.DateStyle = NSDateFormatterStyle.Short;
                                formatter.TimeStyle = NSDateFormatterStyle.Short;
                                formattedDateString = formatter.ToString (theDate);
                                dateResult2.StringValue = formattedDateString;
                                
                                formatter.DateStyle = NSDateFormatterStyle.Medium;
                                formatter.TimeStyle = NSDateFormatterStyle.Short;
                                formattedDateString = formatter.ToString (theDate);
                                dateResult3.StringValue = formattedDateString;
                                
                                formatter.DateStyle = NSDateFormatterStyle.Long;
                                formatter.TimeStyle = NSDateFormatterStyle.Short;
                                formattedDateString = formatter.ToString (theDate);
                                dateResult4.StringValue = formattedDateString;
                                
                                formatter.DateStyle = NSDateFormatterStyle.Full;
                                formatter.TimeStyle = NSDateFormatterStyle.Full;
                                formattedDateString = formatter.ToString (theDate);
                                dateResult5.StringValue = formattedDateString;
                        }
                }
Example #7
0
        public CustomizationRangeNavigator()
        {
            rangeNavigator         = new SFDateTimeRangeNavigator();
            lblTitle               = new UILabel();
            lblTitle.TextAlignment = UITextAlignment.Center;
            lblTitle.Font          = UIFont.FromName("Helvetica", 14f);

            lblValue = new UILabel();
            lblValue.TextAlignment = UITextAlignment.Center;
            lblValue.Font          = UIFont.FromName("Helvetica", 14f);

            rangeNavigator.ShowTooltip = false;
            rangeNavigator.Delegate    = new CustomizationDelegate(lblTitle, lblValue);

            DateTime minDate   = new DateTime(2015, 1, 1, 0, 0, 0);
            DateTime maxDate   = new DateTime(2015, 12, 1, 0, 0, 0);
            DateTime startDate = new DateTime(2015, 6, 15, 0, 0, 0);
            DateTime endDate   = new DateTime(2015, 9, 15, 0, 0, 0);

            rangeNavigator.Minimum        = DateTimeToNSDate(minDate);
            rangeNavigator.Maximum        = DateTimeToNSDate(maxDate);
            rangeNavigator.ViewRangeStart = DateTimeToNSDate(startDate);
            rangeNavigator.ViewRangeEnd   = DateTimeToNSDate(endDate);
            rangeNavigator.EdgeInsets     = new UIEdgeInsets(0, 0, 20, 0);

            rangeNavigator.Content.Layer.BorderWidth              = 1.0f;
            rangeNavigator.Content.Layer.BorderColor              = UIColor.LightGray.CGColor;
            rangeNavigator.LeftThumbStyle.LineWidth               = 3.0f;
            rangeNavigator.LeftThumbStyle.Width                   = 28.0f;
            rangeNavigator.LeftThumbStyle.LineColor               = UIColor.FromRGBA(95.0f / 255.0f, 104.0f / 255.0f, 114.0f / 255.0f, 1.0f);
            rangeNavigator.RightThumbStyle.LineWidth              = 3.0f;
            rangeNavigator.RightThumbStyle.Width                  = 28.0f;
            rangeNavigator.RightThumbStyle.LineColor              = UIColor.FromRGBA(95.0f / 255.0f, 104.0f / 255.0f, 114.0f / 255.0f, 1.0f);
            rangeNavigator.MinorScaleStyle.IsVisible              = false;
            rangeNavigator.MinorScaleStyle.ShowGridLines          = false;
            rangeNavigator.MajorScaleStyle.LabelTextColor         = UIColor.FromRGBA(95.0f / 255.0f, 104.0f / 255.0f, 114.0f / 255.0f, 1.0f);
            rangeNavigator.MajorScaleStyle.SelectedLabelTextColor = UIColor.FromRGBA(28.0f / 255.0f, 178.0f / 255.0f, 213.0f / 255.0f, 1.0f);

            ChartViewModel     dataModel = new ChartViewModel();
            SFSplineAreaSeries series    = new SFSplineAreaSeries();

            series.Alpha        = 0.6f;
            series.BorderColor  = UIColor.FromRGBA(28.0f / 255.0f, 178.0f / 255.0f, 213.0f / 255.0f, 1.0f);
            series.Color        = UIColor.FromRGBA(124.0f / 255.0f, 230.0f / 255.0f, 199.0f / 255.0f, 1.0f);
            series.ItemsSource  = dataModel.DateTimeRangeData;
            series.XBindingPath = "XValue";
            series.YBindingPath = "YValue";

            ((SFChart)rangeNavigator.Content).Series.Add(series);


            ThumbLayer thumbLayer = new ThumbLayer();

            rangeNavigator.ThumbLayer = thumbLayer;

            this.AddSubview(lblTitle);
            this.AddSubview(lblValue);
            this.AddSubview(rangeNavigator);

            NSDateFormatter resultFormatter = new NSDateFormatter();

            resultFormatter.DateFormat = "MMM dd";

            lblTitle.Text = string.Format(@"Data usage cycle: {0} - {1}",
                                          resultFormatter.ToString(rangeNavigator.ViewRangeStart),
                                          resultFormatter.ToString(rangeNavigator.ViewRangeEnd));
            lblValue.Text = string.Format(@"Data usage - 101 MB");

            //this.control = this;
        }
Example #8
0
        void UpdateLabel()
        {
            var now = DateTime.Now;

            timeDisplayLabel.SetText(dateFormatter.ToString((NSDate)now));
        }
Example #9
0
		private void OnModalPickerDismissed (object sender, EventArgs e)
		{
			var dateFormatter = new NSDateFormatter()
			{
				DateFormat = "dd.MM.yyyy"
			};
			_dateButton.SetTitle(dateFormatter.ToString(_modalPicker.DatePicker.Date), UIControlState.Normal);
			_modalPicker.OnModalPickerDismissed -= OnModalPickerDismissed;
		}
Example #10
0
		private void DatePicker_ValueChanged(object sender,EventArgs e)
		{
			NSDateFormatter formatDate = new NSDateFormatter ();
			formatDate.DateFormat = "YYYY/MM/dd HH:mm:ss";
			this.lbl.Text = formatDate.ToString (this.datePicker.Date);
		}
Example #11
0
 public virtual string FormatDate(DateTime dt)
 {
     return(fmt.ToString(dt) + " " + dt.ToLocalTime().ToShortTimeString());
 }
Example #12
0
 private static string GetShowTimeText(DateTime?time)
 {
     return(time.HasValue ? TimeFormatter.ToString(time.Value.ToNSDate()) : null);
 }
        public void addItem()
        {
            NSDateFormatter dateFormatter = new NSDateFormatter() /*alloc*/  /*autorelease*/;
            dateFormatter.TimeStyle = NSDateFormatterStyle.Medium;
            string now = dateFormatter.ToString(NSDate.Now);
            items.Add(string.Format("{0}", now));

            this.TableView.ReloadData();

            this.stopLoading();
        }
 public virtual string FormatDate(DateTime dt)
 {
     return(string.Format("{0} {1}", fmt.ToString(dt), dt.ToLocalTime().ToShortTimeString()));
 }
Example #15
0
        private async void GetMyValidBookedReservations()
        {
            ShowLoadingView("Loading data...");

            _pickups = new List <Dictionary <string, string> > ();

            try
            {
                var lResult = LocationHelper.GetLocationResult();

                if (_selectedMarker != null)
                {
                    _selectedMarker.Map = null;
                    mapView.Clear();
                }


                if (_currentMarkers != null)
                {
                    foreach (var marker in _currentMarkers)
                    {
                        marker.Map = null;
                    }
                    _currentMarkers.Clear();
                    mapView.MarkerInfoWindow = null;
                }

                NSDateFormatter dateFormat = new NSDateFormatter();
                dateFormat.DateFormat = "MM/dd/yyyy";
                NSDate now    = NSDate.FromTimeIntervalSinceReferenceDate((DateTime.Now - (new DateTime(2001, 1, 1, 0, 0, 0))).TotalSeconds);
                var    strNow = dateFormat.ToString(now);

                var customerID = AppSettings.UserID;


                // please take a look it, Pavel
                var dic = new Dictionary <String, String>
                {
                    { Constant.GETREADYFORPICKUPLIST_CUSTOMERID, "553890" },
                    { Constant.GETREADYFORPICKUPLIST_CURRENTDATE, "2/13/2015" }
                };
                //var dic = new Dictionary<String, String>
                //{
                //	{Constant.GETREADYFORPICKUPLIST_CUSTOMERID, customerID},
                //	{Constant.GETREADYFORPICKUPLIST_CURRENTDATE, strNow}
                //};
                var result = await AppData.ApiCall(Constant.GETREADYFORPICKUPLIST, dic);

                var tt = (GetReadyForPickupListResponse)AppData.ParseResponse(Constant.GETREADYFORPICKUPLIST, result);

                var availableReservations = tt.PickupList;

                for (int i = 0; i < availableReservations.Count; i++)
                {
                    var reservation = availableReservations[i];

                    Task runSync = Task.Factory.StartNew(async() => {
                        var pickupData = await GetPickupDataForReservation(reservation);
                        _pickups.Add(pickupData);
                    }).Unwrap();
                    runSync.Wait();
                }

                var bounds = new CoordinateBounds();

                var listReservations = new List <KeyValuePair <object, string> >();
                listReservations.Add(new KeyValuePair <object, string>("0", "Ready for all rides"));
                foreach (Dictionary <String, String> pickup in _pickups)
                {
                    var marker = new Marker
                    {
                        Position = new CLLocationCoordinate2D(double.Parse(pickup["Latitude"]), double.Parse(pickup["Longitude"])),
                        Map      = mapView,
                        Icon     = rotateImage(UIImage.FromBundle(getMapVehicleIconByServiceID(pickup["ServiceID"])), float.Parse(pickup["Angle"])),
                        ZIndex   = int.Parse(pickup["ResID"])
                    };
                    _currentMarkers.Add(marker);
                    bounds = bounds.Including(marker.Position);

                    listReservations.Add(new KeyValuePair <object, string>(pickup["ResID"], pickup["DisplayTxt"]));                   //string.Format("Shared Van (7 Passengers) \n 3:45 Pick-Up to Los Angeles", pickup["ResID"], pickup["ResType"])));
                }

                if (_pickups.Count > 0)
                {
                    btnReadyPickup.BackgroundColor = UIColor.Green;
                    btnReadyPickup.SetTitle(string.Format("READY FOR PICKUP ({0})", _pickups.Count.ToString()), UIControlState.Normal);
                    SetupReadyPickup(txtBtnReadyPickup, listReservations, CallForReadyPickup);
                }
                else
                {
                    btnReadyPickup.BackgroundColor = UIColor.Gray;
                    btnReadyPickup.SetTitle("READY FOR PICKUP", UIControlState.Normal);
                }

                bounds = bounds.Including(new CLLocationCoordinate2D(lResult.Latitude, lResult.Longitude));

                _selectedMarker = new Marker {
                    Position = new CLLocationCoordinate2D(lResult.Latitude, lResult.Longitude),
                    Map      = mapView,
                    Icon     = UIImage.FromBundle("icon_mylocation.png")
                };

                mapView.SelectedMarker = _selectedMarker;

                if (_pickups.Count > 0)
                {
                    mapView.Animate(CameraUpdate.FitBounds(bounds, 100f));
                }

                mapView.TappedMarker = (map, maker) => {
                    mapView.MarkerInfoWindow = new GMSInfoFor(markerInfoWindow);
                    return(false);
                };
            }
            catch (Exception ex)
            {
                CrashReporter.Report(ex);
                HideLoadingView();
                return;
            }
            HideLoadingView();
        }
		// Custom UIPrintPageRenderer's may override this class to draw a custom print page header. 
		// To illustrate that, this class sets the date in the header.
		public override void DrawHeaderForPage (int index, RectangleF headerRect)
		{
			NSDateFormatter dateFormatter = new NSDateFormatter ();
			dateFormatter.DateFormat = "MMMM d, yyyy 'at' h:mm a";
			
			NSString dateString = new NSString (dateFormatter.ToString (NSDate.Now));
			dateFormatter.Dispose ();
			
			dateString.DrawString (headerRect, SystemFont, UILineBreakMode.Clip, UITextAlignment.Right);
			dateString.Dispose ();
		}
Example #17
0
        public override void LayoutSubviews()
        {
            foreach (var view in this.Subviews)
            {
                view.Frame = new CGRect(Frame.X, 0, Frame.Width, Frame.Height);
            }
            CreateOptionView();
            scheduleEditor.Editor.Frame     = new CGRect(0, 0, this.Frame.Size.Width, this.Frame.Size.Height);
            scheduleEditor.scrollView.Frame = new CGRect(scheduleEditor.Editor.Frame.X + 10, scheduleEditor.Editor.Frame.Y + 10, scheduleEditor.Editor.Frame.Size.Width - 10, scheduleEditor.Editor.Frame.Size.Height);

            scheduleEditor.EditorFrameUpdate();

            UIImageView image1 = new UIImageView();
            UIImageView image2 = new UIImageView();
            UIImageView image3 = new UIImageView();

            moveToDate = new UIButton();
            editorView = new UIButton();
            monthText  = new UILabel();

            headerView = new UIView();
            headerView.BackgroundColor = UIColor.FromRGB(214, 214, 214);

            NSDate     today    = new NSDate();
            NSCalendar calendar = NSCalendar.CurrentCalendar;
            // Get the year, month, day from the date
            NSDateComponents components = calendar.Components(
                NSCalendarUnit.Year | NSCalendarUnit.Month | NSCalendarUnit.Day, today);
            NSDate          startDate  = calendar.DateFromComponents(components);
            NSDateFormatter dateFormat = new NSDateFormatter();

            dateFormat.DateFormat = "MMMM YYYY";
            string monthName = dateFormat.ToString(startDate);

            monthText.Text          = monthName;
            monthText.TextColor     = UIColor.Black;
            monthText.TextAlignment = UITextAlignment.Left;
            moveToDate.AddSubview(image2);
            headerButton.AddSubview(image1);
            editorView.AddSubview(image3);


            string[] tableItems = new string[] { "Day", "Week", "WorkWeek", "Month" };
            tableView        = new UITableView();
            tableView.Frame  = new CGRect(0, 0, this.Frame.Size.Width / 2, 60.0f * 4);
            tableView.Hidden = true;
            tableView.Source = new ScheduleTableSource(tableItems);

            string deviceType = UIDevice.CurrentDevice.Model;

            if (deviceType == "iPhone" || deviceType == "iPod touch")
            {
                image1.Frame = new CGRect(0, 0, 60, 60);
                image1.Image = UIImage.FromFile("black-09.png");
                image2.Frame = new CGRect(0, 0, 60, 60);
                image2.Image = UIImage.FromFile("black-11.png");
                image3.Frame = new CGRect(0, 0, 60, 60);
                image3.Image = UIImage.FromFile("black-10.png");

                headerView.Frame   = new CGRect(0, 0, this.Frame.Size.Width, 50);
                moveToDate.Frame   = new CGRect((this.Frame.Size.Width / 6) + (this.Frame.Size.Width / 2), -10, this.Frame.Size.Width / 8, 50);
                editorView.Frame   = new CGRect((this.Frame.Size.Width / 6) + (this.Frame.Size.Width / 6) + (this.Frame.Size.Width / 2), -10, this.Frame.Size.Width / 8, 50);
                headerButton.Frame = new CGRect(-10, -10, this.Frame.Size.Width / 8, 50);
                monthText.Frame    = new CGRect(this.Frame.Size.Width / 8, -10, this.Frame.Size.Width / 2, 60);
                schedule.Frame     = new CGRect(0, 50, this.Frame.Size.Width, this.Frame.Size.Height - 50);
            }
            else
            {
                schedule.DayViewSettings.WorkStartHour = 7;
                schedule.DayViewSettings.WorkEndHour   = 18;

                schedule.WeekViewSettings.WorkStartHour = 7;
                schedule.WeekViewSettings.WorkEndHour   = 18;

                schedule.WorkWeekViewSettings.WorkStartHour = 7;
                schedule.WorkWeekViewSettings.WorkEndHour   = 18;

                image1.Frame = new CGRect(0, 0, 80, 80);
                image1.Image = UIImage.FromFile("black-09.png");
                image2.Frame = new CGRect(0, 0, 80, 80);
                image2.Image = UIImage.FromFile("black-11.png");
                image3.Frame = new CGRect(0, 0, 80, 80);
                image3.Image = UIImage.FromFile("black-10.png");

                headerView.Frame   = new CGRect(0, 0, this.Frame.Size.Width, 60);
                moveToDate.Frame   = new CGRect((this.Frame.Size.Width / 5) + (this.Frame.Size.Width / 2) + (this.Frame.Size.Width / 8), -10, this.Frame.Size.Width / 8, 50);
                editorView.Frame   = new CGRect((this.Frame.Size.Width / 5) + (this.Frame.Size.Width / 5) + (this.Frame.Size.Width / 2), -10, this.Frame.Size.Width / 8, 50);
                headerButton.Frame = new CGRect(0, -10, this.Frame.Size.Width / 8, 50);
                monthText.Frame    = new CGRect(this.Frame.Size.Width / 8, 5, this.Frame.Size.Width / 2, 50);
                schedule.Frame     = new CGRect(0, 60, this.Frame.Size.Width, this.Frame.Size.Height - 60);
            }

            moveToDate.TouchUpInside   += MoveToDate_TouchUpInside;
            headerButton.TouchUpInside += HeaderButton_TouchUpInside;
            editorView.TouchUpInside   += EditorView_TouchUpInside;

            headerView.AddSubview(moveToDate);
            headerView.AddSubview(editorView);
            headerView.AddSubview(monthText);
            headerView.AddSubview(headerButton);
            this.AddSubview(schedule);
            this.AddSubview(headerView);
            this.AddSubview(scheduleEditor.Editor);
            this.AddSubview(tableView);
            base.LayoutSubviews();
        }
        bool OnTextFieldShouldBeginEditing(UITextField textField)
        {
            var modalPicker = new ModalPickerViewController(ModalPickerType.Date, "Select A Date", this)
            {
                HeaderBackgroundColor = UIColor.Red,
                HeaderTextColor = UIColor.White,
                TransitioningDelegate = new ModalPickerTransitionDelegate(),
                ModalPresentationStyle = UIModalPresentationStyle.Custom
            };

            modalPicker.DatePicker.Mode = UIDatePickerMode.Date;

            modalPicker.OnModalPickerDismissed += (s, ea) => 
            {
                var dateFormatter = new NSDateFormatter()
                {
                    DateFormat = "MMMM dd, yyyy"
                };

                textField.Text = dateFormatter.ToString(modalPicker.DatePicker.Date);
            };

            PresentViewController(modalPicker, true, null);

            return false;
        }
Example #19
0
 void CalendarDidSelectDate(FSCalendar calendar, NSDate date, FSCalendarMonthPosition monthPosition)
 {
     System.Diagnostics.Debug.WriteLine($"Did select date: {DateFormatter.ToString(date)}");
     ConfigureVisibleCells();
 }
		private void UpdateDateLabel()
		{
			InvokeOnMainThread (() => {
				var dateFormatter = new NSDateFormatter () {
					DateFormat = "EEE MMM dd, h:mm aaa"
				};

				DateTime theTime = newDate.starttime;

				NSDate tempDate = theTime.DateTimeToNSDate ();
				DateStartBtn.SetTitle(dateFormatter.ToString (tempDate), UIControlState.Normal);
			});

		}
Example #21
0
        async void DateTimePikerFechafin(object sender, EventArgs e)
        {
            var modalPicker = new ModalPickerViewController(ModalPickerType.Date, "Elije Fecha", this)
            {
                HeaderBackgroundColor  = UIColor.Red,
                HeaderTextColor        = UIColor.White,
                TransitioningDelegate  = new ModalPickerTransitionDelegate(),
                ModalPresentationStyle = UIModalPresentationStyle.Custom
            };

            modalPicker.DatePicker.Mode = UIDatePickerMode.DateAndTime;

            modalPicker.OnModalPickerDismissed += (s, ea) =>
            {
                var dateFormatterFecha = new NSDateFormatter()
                {
                    DateFormat = "yyyy-MM-dd"
                };
                var dateFormatterHora = new NSDateFormatter()
                {
                    DateFormat = "HH:mm:ss"
                };

                NSLocale locale = NSLocale.FromLocaleIdentifier("es_MX");
                dateFormatterFecha.Locale = locale;
                dateFormatterHora.Locale  = locale;

                txtFinal.Text = dateFormatterFecha.ToString(modalPicker.DatePicker.Date) + " " + dateFormatterHora.ToString(modalPicker.DatePicker.Date);
            };

            await PresentViewControllerAsync(modalPicker, true);
        }