App.xaml.cs

using Windows.UI.Xaml;
using System.Threading.Tasks;
using SJ5000Plus.Services.SettingsServices;
using Windows.ApplicationModel.Activation;
using Template10.Controls;
using Template10.Common;
using SJ5000Plus.Services.CameraServices;
using Windows.Foundation;
using System;

namespace SJ5000Plus
{
    /// Documentation on APIs used in this page:
    /// https://github.com/Windows-XAML/Template10/wiki

    sealed partial class App : Template10.Common.BootStrapper
    {
        public ICameraService Camera;

        public App()
        {
            Microsoft.ApplicationInsights.WindowsAppInitializer.InitializeAsync(
                Microsoft.ApplicationInsights.WindowsCollectors.Metadata |
                Microsoft.ApplicationInsights.WindowsCollectors.Session);
            InitializeComponent();
            SplashFactory = (e) => new Views.Splash(e);

            #region App settings

            var _settings = SettingsService.Instance;
            RequestedTheme = _settings.AppTheme;
            CacheMaxDuration = _settings.CacheMaxDuration;
            ShowShellBackButton = _settings.UseShellBackButton;

            #endregion

        }

        // runs even if restored from state
        public override Task OnInitializeAsync(IActivatedEventArgs args)
        {
            // content may already be shell when resuming
            if ((Window.Current.Content as ModalDialog) == null)
            {
                // setup hamburger shell inside a modal dialog
                var nav = NavigationServiceFactory(BackButton.Attach, ExistingContent.Include);
                Window.Current.Content = new ModalDialog
                {
                    DisableBackButtonWhenModal = true,
                    Content = new Views.Shell(nav),
                    ModalContent = new Views.Busy(),
                };
            }
            return Task.CompletedTask;
        }

        // runs only when not restored from state
        public override Task OnStartAsync(StartKind startKind, IActivatedEventArgs args)
        {
            // Show phone statusbar
            if (Windows.Foundation.Metadata.ApiInformation
                .IsTypePresent("Windows.UI.ViewManagement.StatusBar"))
            {
                //await Windows.UI.ViewManagement.StatusBar.GetForCurrentView().HideAsync();
                Windows.UI.ViewManagement.StatusBar.GetForCurrentView().BackgroundOpacity = 1;
            }

            NavigationService.Navigate(typeof(Views.ConnectPage));
            return Task.CompletedTask;
        }
    }
}