/// <summary>
        /// Initializes a new instance of the AppShell, sets the static 'Current' reference,
        /// adds callbacks for Back requests and changes in the SplitView's DisplayMode, and
        /// provide the nav menu list with the data to display.
        /// </summary>
        public AppShell()
        {
            this.InitializeComponent();

            this.Loaded += (sender, args) =>
            {
                Current = this;

                this.TogglePaneButton.Focus(FocusState.Programmatic);
            };

            this.RootSplitView.RegisterPropertyChangedCallback(
                SplitView.DisplayModeProperty,
                (s, a) =>
                {
                    // Ensure that we update the reported size of the TogglePaneButton when the SplitView's
                    // DisplayMode changes.
                    this.CheckTogglePaneButtonSizeChanged();
                });

            SystemNavigationManager.GetForCurrentView().BackRequested += SystemNavigationManager_BackRequested;

            // If on a phone device that has hardware buttons then we hide the app's back button.
            if (ApiInformation.IsTypePresent("Windows.Phone.UI.Input.HardwareButtons"))
            {
                this.BackButton.Visibility = Visibility.Collapsed;
            }

            NavMenuList.ItemsSource = navlist;
        }
        /// <summary>
        /// Вызывается при обычном запуске приложения пользователем.  Будут использоваться другие точки входа,
        /// например, если приложение запускается для открытия конкретного файла.
        /// </summary>
        /// <param name="e">Сведения о запросе и обработке запуска.</param>
        protected override async void OnLaunched(LaunchActivatedEventArgs e)
        {

#if DEBUG
            if (System.Diagnostics.Debugger.IsAttached)
            {
                //this.DebugSettings.EnableFrameRateCounter = true;
            }
#endif

            AppShell shell = Window.Current.Content as AppShell;

            // Не повторяйте инициализацию приложения, если в окне уже имеется содержимое,
            // только обеспечьте активность окна
            if (shell == null)
            {
                // Create a AppShell to act as the navigation context and navigate to the first page
                shell = new AppShell();

                // Set the default language
                shell.Language = Windows.Globalization.ApplicationLanguages.Languages[0];

                shell.AppFrame.NavigationFailed += OnNavigationFailed;

                if (e.PreviousExecutionState == ApplicationExecutionState.Terminated)
                {
                    //TODO: Load state from previously suspended application
                }
            }

            // Place our app shell in the current Window
            Window.Current.Content = shell;

            if (shell.AppFrame.Content == null)
            {
                try
                {
                    var data = await ApplicationData.Current.LocalFolder.GetFileAsync("data");
                    var readData = await ReadWrite.readStringFromLocalFile("data");
                    if (readData == "")
                    {
                        shell.AppFrame.Navigate(typeof(AddNewAccount), e.Arguments, new Windows.UI.Xaml.Media.Animation.SuppressNavigationTransitionInfo());
                    }
                    else
                    {
                        Profile myProfile = JsonSerilizer.ToProfile(readData);
                        if (myProfile.Password != null)
                        {
                            shell.AppFrame.Navigate(typeof(LoginPage), e.Arguments, new Windows.UI.Xaml.Media.Animation.SuppressNavigationTransitionInfo());
                        }
                        else
                        {
                            shell.AppFrame.Navigate(typeof(NewPassword), e.Arguments, new Windows.UI.Xaml.Media.Animation.SuppressNavigationTransitionInfo());
                        }
                    }
                   
                }
                catch (FileNotFoundException ex)
                {
                    shell.AppFrame.Navigate(typeof(AddNewAccount), e.Arguments, new Windows.UI.Xaml.Media.Animation.SuppressNavigationTransitionInfo());
                }
               
               
                // When the navigation stack isn't restored, navigate to the first page
                // suppressing the initial entrance animation.
               
            }

            // Ensure the current window is active
            Window.Current.Activate();
        }