Android Spinner没有使用新选择的项目Xamarin.Android进行更新

Question

I have a spinner containing a list of countries. The page load with the following

The user select a country from the drop down menu. Let say we select Algeria

After Algeria is selected the drop down will close but the selected country is still shown as Unknown

Next, when I select another country, only then the previous country which was Algeria is shown. Not the newly selected country.

My code

public class SpinnerActivity : Activity
{
    private ArrayAdapter adapter;
    private Spinner spinner;
    protected override void OnCreate(Bundle bundle)
    {
        base.OnCreate(bundle);

        // Set our view from the "Main" layout resource
        SetContentView(Resource.Layout.SpinnerControl);

        spinner = FindViewById<Spinner>(Resource.Id.spinner);
        spinner.ItemSelected += new EventHandler<AdapterView.ItemSelectedEventArgs>(spinner_ItemSelected);

        adapter = ArrayAdapter.CreateFromResource(
            this, Resource.Array.countries_array, Android.Resource.Layout.SimpleSpinnerItem);

        adapter.SetDropDownViewResource(Android.Resource.Layout.SimpleSpinnerDropDownItem);
        adapter.NotifyDataSetChanged();
        spinner.Adapter = adapter;

        spinner.SetSelection(GameSettings.ISettings.CountrySetting);
    }


    private void spinner_ItemSelected(object sender, AdapterView.ItemSelectedEventArgs e)
    {
        Spinner spinner = (Spinner)sender;
        spinner.SetSelection(adapter.GetPosition(e.Position));
        Console.WriteLine("Setting{0}", GameSettings.ISettings.CountrySetting);
        if (e.Position != GameSettings.ISettings.CountrySetting)
        {
            GameSettings.ISettings.CountrySetting = e.Position;
            Options.countryText.ChangeText("Country: " + System.Environment.NewLine + ScoreHelper.GetCountry(GameSettings.ISettings.CountrySetting));
            ScoreBoards.Board.IsInfoUpdated = true;

        }
    }
}

So how do I update the spinner with the selected item right away when the drop down is closed?

Answer 1

Apparently this issue only happens on device emulator. I did not encounter it when debugging on a physical device.