Windows 8.1 Universal explicitly create MainPage

Question

Is there any way to explicitly instance MainPage in Windows 8.1 universal app? I want to resolve it using autofac or similar IoC container and pass requirements in constructor.

Answer 1

You can explicitly set Content property of Frame in OnLaunched method of your application(App.xaml.cs file):

 protected async 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)
        {
            rootFrame = new Frame();

            rootFrame.CacheSize = 1;

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

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

        if (rootFrame.Content == null)
        {
            #if WINDOWS_PHONE_APP
            // Removes the turnstile navigation for startup.
            if (rootFrame.ContentTransitions != null)
            {
                this.transitions = new TransitionCollection();
                foreach (var c in rootFrame.ContentTransitions)
                {
                    this.transitions.Add(c);
                }
            }

            rootFrame.ContentTransitions = null;
            rootFrame.Navigated += this.RootFrame_FirstNavigated;
            #endif

            rootFrame.Content = new MainPage();
        }

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

Instead rootFrame.Content = new MainPage(); you can assign Content property with any Page instance.