在运行时更改ui语言

Question

我试图动态更改我的UWP应用的ui语言。 除了包含语言组合框本身的页面外，一切正常。

我必须从组合框中选择一种语言两次以查看页面更改为另一种语言，为什么我必须两次这样做？

private void comboUILanguages_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
        ResourceController.ChangeUILanguage((string)((ComboBox)sender).SelectedItem);

        //for now, use a simple condition to determine wheter the page should be refreshed immediatly
        if (true)
        {
            MainPage.Current.RefreshMenu();
            Reload(currentGroup);
        }
}

private bool Reload(object param = null)
{
        var type = Frame.CurrentSourcePageType;

        try
        {
            return Frame.Navigate(type, param);
        }
        finally
        {
            Frame.BackStack.Remove(Frame.BackStack.Last());
        }
}

我的ResourceController：

class ResourceController
{
    private static ResourceLoader resourceLoader = ResourceLoader.GetForViewIndependentUse();

    public static string GetTranslation(string resource)
    {
        return resourceLoader.GetString(resource);
    }

    public static void ChangeUILanguage(string language)
    {
        Windows.Globalization.ApplicationLanguages.PrimaryLanguageOverride = language;
        Windows.ApplicationModel.Resources.Core.ResourceContext.GetForViewIndependentUse().Reset();
    }

    public static string GetCurrentUILanguage()
    {
        return CultureInfo.CurrentUICulture.TwoLetterISOLanguageName; 
    }
}