Exemplo n.º 1
0
        private void SetSelectedItem(int direction)
        {
            if (SelectedItem == null)
            {
                SelectedItem = Pins.FirstOrDefault();
            }

            var index    = Pins.IndexOf(SelectedItem as IMapPin);
            var newIndex = (index + direction) % (Pins.Count);

            if (newIndex < 0)
            {
                newIndex = Pins.Count - 1;
            }

            SelectedItem = Pins[newIndex];
        }