Windows Phone 8.1 Helpers

InputScopeHelper.cs

    public static class InputScopeHelper
    {
        public static InputScope GetSingleScope(InputScopeNameValue myscope)
        {
            InputScope scope = new InputScope();
            InputScopeName name = new InputScopeName();

            name.NameValue = myscope;
            scope.Names.Add(name);

            return scope;
        }
    }

LanguageSwitchHelper.cs

using System.Globalization;
using Windows.ApplicationModel.Resources.Core;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;

namespace WindowsPhoneHelpers
{
    public static class LanguageSwitchHelper
    {
        public static void ChangeLanguage(string code, FlowDirection flowDirection)
        {
            var culture = new CultureInfo(code);
            Windows.Globalization.ApplicationLanguages.PrimaryLanguageOverride = culture.Name;
            CultureInfo.DefaultThreadCurrentCulture = culture;
            CultureInfo.DefaultThreadCurrentUICulture = culture;
            var frame = Window.Current.Content as Frame;
            if (frame != null)
                frame.FlowDirection = flowDirection;
            var loader = new Windows.ApplicationModel.Resources.ResourceLoader();

            ResourceManager.Current.DefaultContext.Reset();
            Windows.ApplicationModel.Resources.Core.ResourceContext.GetForCurrentView().Reset();
            Windows.ApplicationModel.Resources.Core.ResourceContext.GetForViewIndependentUse().Reset();
        }             
    }
}

LocalSettingsHelper.cs

using System;

namespace WindowsPhoneHelpers
{
    public static class LocalSettingsHelper
    {
        public static bool? GetBool(string key)
        {
            try
            {
                bool b = (bool) Windows.Storage.ApplicationData.Current.LocalSettings.Values[key];
                return b;
            }
            catch (NullReferenceException)
            {
                return null;
            }
        }

        public static void SaveBool(string key, bool value)
        {
            Windows.Storage.ApplicationData.Current.LocalSettings.Values[key] = value;
        }

        public static string GetString(string key)
        {
            try
            {
                string s = Windows.Storage.ApplicationData.Current.LocalSettings.Values[key] as string;
                return s;
            }
            catch (NullReferenceException)
            {
                return null;
            }
        }
        public static void SaveString(string key, string value)
        {
            Windows.Storage.ApplicationData.Current.LocalSettings.Values[key] = value;
        }
    }
}

NavigationHelper.cs

using System;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;

namespace WindowsPhoneHelpers
{
    public static class NavigationHelper
    {

        public static void NavigateTo(Type pageType)
        {
            Frame rootFrame = Window.Current.Content as Frame;
            if(rootFrame == null) return;
            var currentPage = rootFrame.CurrentSourcePageType;
            if (currentPage == pageType) return;

          rootFrame.Navigate(pageType);
        }
    }
}

ProgressIndicatorHelper.cs

using Windows.UI.ViewManagement;

namespace WindowsPhoneHelpers
{
    public static class ProgressIndicatorHelper
    {
        public static void ShowLoader(string loaderMessage)
        {
            StatusBarProgressIndicator progressbar = StatusBar.GetForCurrentView().ProgressIndicator;
            progressbar.Text = loaderMessage;
            progressbar.ShowAsync();
        }

        public static void HideLoader()
        {
            StatusBarProgressIndicator progressbar = StatusBar.GetForCurrentView().ProgressIndicator;
            progressbar.HideAsync();
        }
    }
}