public void ShowPopup()
{
GlobalData.AppointmentPopupWindow = new ExtendedPopupWindow();
GlobalData.AppointmentPopupWindow.Touchable = true;
GlobalData.AppointmentPopupWindow.Focusable = false;
GlobalData.AppointmentPopupWindow.OutsideTouchable = false;
Point windowDimensions = new Point();
_activity.WindowManager.DefaultDisplay.GetSize(windowDimensions);
int[] itemPosition = new int[2];
_calendarItem.GetLocationOnScreen(itemPosition);
Point itemPoint = new Point(itemPosition[POINT_X], itemPosition[POINT_Y]);
int itemHeight = _calendarItem.Height;
int itemWidth = _calendarItem.Width;
//start orientation detection
if (_activity.Resources.Configuration.Orientation == Android.Content.Res.Orientation.Portrait)
{
AdjustPopupInPortraitMode(itemPoint, windowDimensions, itemHeight);
}
else
{
AdjustPopupInLandscapeMode(itemPoint, windowDimensions, itemWidth);
}
UpdateAdapter();
}