public class MainActivity : Activity
    {
        Spinner kapely;
        TextView txtVybrana;
        ArrayAdapter<string> adapter;

        protected void inicializaceUI()
        {
            kapely = FindViewById<Spinner>(Resource.Id.spinnerKapely);
            txtVybrana = FindViewById<TextView>(Resource.Id.TextViewVybrana);
            adapter = new ArrayAdapter<string>(this,Android.Resource.Layout.SimpleSpinnerDropDownItem);
        }

        protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate(bundle);
            SetContentView (Resource.Layout.Main);
            inicializaceUI();
            kapely.Adapter = adapter;
            dopln_kapely();
            kapely.ItemSelected += new EventHandler<AdapterView.ItemSelectedEventArgs>(ItemSelectedHandler);
        }

        protected void dopln_kapely()
        {
            adapter.Add("Prosím vyber");
            adapter.Add("U2");
            adapter.Add("Pink Floyd");
            adapter.Add("RHCP");
            adapter.Add("Blue October");
            adapter.Add("J.A.R.");
            adapter.Add("Monkey Business");
        }

        void ItemSelectedHandler(object sender,AdapterView.ItemSelectedEventArgs e)
        {
            txtVybrana.Text = Convert.ToString(adapter.GetItem(e.Position));
        }
    }