private async Task ShowTimePopup()
{
var dateTimeAlertController = new UIAlertController();
var timePicker = new UIDatePicker();
timePicker.Date = _selectedDate;
timePicker.Mode = UIDatePickerMode.Time;
timePicker.TranslatesAutoresizingMaskIntoConstraints = false;
var rootView = dateTimeAlertController.View;
rootView.AddSubview(timePicker);
rootView.AddConstraints(timePicker.WithSameTop(rootView),
timePicker.AtBottomOf(rootView, 100f),
timePicker.WithSameLeft(rootView),
timePicker.WithSameRight(rootView));
dateTimeAlertController.AddAction(UIAlertAction.Create(ConstantsHelper.Ok, UIAlertActionStyle.Default, action =>
{
_selectedDate = timePicker.Date;
var timeFormatter = new NSDateFormatter {
DateFormat = "HH:mm"
};
_currentTimeField.Text = timeFormatter.StringFor(_selectedDate);
}));
dateTimeAlertController.AddAction(UIAlertAction.Create(ConstantsHelper.Cancel, UIAlertActionStyle.Cancel, null));
await PresentViewControllerAsync(dateTimeAlertController, true);
}