AppShellSample.App.OnLaunched C# (CSharp) Method

        protected override void OnLaunched(LaunchActivatedEventArgs e)
        {

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

            //Frame rootFrame = Window.Current.Content as Frame;


            //// Do not repeat app initialization when the Window already has content,
            //// just ensure that the window is active
            //if (rootFrame == null)
            //{
            //    // Create a Frame to act as the navigation context and navigate to the first page
            //    rootFrame = new Frame();

            //    rootFrame.NavigationFailed += OnNavigationFailed;

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

            //    // Place the frame in the current Window
            //    Window.Current.Content = rootFrame;
            //}

            AppShell shell = Window.Current.Content as AppShell;

            // Do not repeat app initialization when the Window already has content,
            // just ensure that the window is active
            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 = 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)
            {
                // When the navigation stack isn't restored, navigate to the first page
                // suppressing the initial entrance animation.
                shell.AppFrame.Navigate(typeof(MainPage), e.Arguments, new SuppressNavigationTransitionInfo());
            }
            // Ensure the current window is active
            Window.Current.Activate();
        }