C#

test = label.Text;

//[assembly:ExportRenderer(typeof(MyPicker), typeof(MyiOSPicker))]

[assembly: ExportRenderer(typeof(MyPickerRenderer), typeof(PickerRendererIos))]

namespace DigitalNatives.iOS
{

    public class PickerRendererIos : PickerRenderer, IUIPickerViewDelegate 
    {
        IElementController ElementController => Element as IElementController;
        public String test = "";

        public PickerRendererIos()
        {
        }

        [Export("pickerView:viewForRow:forComponent:reusingView:")]

         public UIView GetView(UIPickerView pickerView, nint row, nint component, UIView view)
        {
            UILabel label = new UILabel
            {
                TextColor = UIColor.Blue,
                Text = Element.Items[(int)row].ToString(),
                TextAlignment = UITextAlignment.Center,
            };
            test = label.Text;

            Console.WriteLine(Element.Items[(int)row]);

            return label;
        } 


        protected override void OnElementChanged(ElementChangedEventArgs<Picker> e)
        {
              base.OnElementChanged(e);

              if (Control != null)
              {
                  UIPickerView pickerView = (UIPickerView)Control.InputView;
                  pickerView.WeakDelegate = this;
                  pickerView.BackgroundColor = UIColor.White;


            /*  var picker = (Picker)this.Element;
                picker.SelectedIndexChanged += (sender, ee) =>
                {
                    //test = picker.Items[picker.SelectedIndex];
                    test = picker.SelectedItem.ToString();
                }; */

            }

            if (e.OldElement != null)
              {
                  var toolbar = (UIToolbar)Control.InputAccessoryView;
                  var doneBtn = toolbar.Items[1];

                  doneBtn.Clicked -= DoneBtn_Clicked;
              }

              if (e.NewElement != null)
              {
                   var text = e.NewElement.SelectedItem;
                  // test = text.ToString();

                  var toolbar = (UIToolbar)Control.InputAccessoryView;
                  var doneBtn = toolbar.Items[1];

                  doneBtn.Clicked += DoneBtn_Clicked;
              }
        }



        void DoneBtn_Clicked(object sender, EventArgs e)
        {
            Console.WriteLine("Clicked!!!!");
            Element.SelectedItem = test;
        }
    }
}