C# 扩展SplashScreen之前显示的默认SplashScreen

我正在尝试在我的windows 8应用商店应用程序上添加自定义splashscreen 我设法让它工作，但默认的SplashScreen仍然出现在我的自定义屏幕之前

这是我的SplashScreen XAML：

<Page
x:Class="CartuxaTablet.ExtendedSplash"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:CartuxaTablet"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d">

<Grid Background="#FF0000">
    <Grid.RowDefinitions>
        <RowDefinition/>
        <RowDefinition Height="180"/>
    </Grid.RowDefinitions>

    <Canvas Grid.Row="0">
        <Image x:Name="extendedSplashImage" Source="ms-appx:///Assets/splash.png" Canvas.Left="158" Canvas.Top="48" />
    </Canvas>
    <StackPanel Grid.Row="1" HorizontalAlignment="Center">
        <ProgressRing IsActive="True"></ProgressRing>
    </StackPanel>
</Grid>

---

我需要做些额外的事情来禁用默认启动屏幕吗？

您不能禁用默认启动屏幕，但可以使用它来自定义它。您可以看到。

我遵循了本教程，我的代码是否应该替换当前的SplashScreen？或者我必须同时使用两者吗？不幸的是，您的代码无法替换默认代码。你必须两者兼用。

namespace CartuxaTablet
{
    /// <summary>
    /// An empty page that can be used on its own or navigated to within a Frame.
    /// </summary>
    partial class ExtendedSplash
    {
        internal Rect splashImageRect; // Rect to store splash screen image coordinates.
        internal bool dismissed = false; // Variable to track splash screen dismissal status.
        internal Frame rootFrame;

        private SplashScreen splash; // Variable to hold the splash screen object.

        public ExtendedSplash(SplashScreen splashscreen, bool loadState)
        {
            InitializeComponent();


            // Listen for window resize events to reposition the extended splash screen image accordingly.
            // This is important to ensure that the extended splash screen is formatted properly in response to snapping, unsnapping, rotation, etc...
            Window.Current.SizeChanged += new WindowSizeChangedEventHandler(ExtendedSplash_OnResize);

            splash = splashscreen;

            if (splash != null)
            {
                // Register an event handler to be executed when the splash screen has been dismissed.
                splash.Dismissed += new TypedEventHandler<SplashScreen, Object>(DismissedEventHandler);

                // Retrieve the window coordinates of the splash screen image.
                splashImageRect = splash.ImageLocation;
                PositionImage();
            }

            // Create a Frame to act as the navigation context
            rootFrame = new Frame();

            // Restore the saved session state if necessary
            RestoreStateAsync(loadState);
        }

        async void RestoreStateAsync(bool loadState)
        {
            if (loadState)
                await SuspensionManager.RestoreAsync();

            // Normally you should start the time consuming task asynchronously here and
            // dismiss the extended splash screen in the completed handler of that task
            // This sample dismisses extended splash screen  in the handler for "Learn More" button for demonstration
        }

        // Position the extended splash screen image in the same location as the system splash screen image.
        void PositionImage()
        {
            extendedSplashImage.SetValue(Canvas.LeftProperty, splashImageRect.X);
            extendedSplashImage.SetValue(Canvas.TopProperty, splashImageRect.Y);
            extendedSplashImage.Height = splashImageRect.Height;
            extendedSplashImage.Width = splashImageRect.Width;
        }

        void ExtendedSplash_OnResize(Object sender, WindowSizeChangedEventArgs e)
        {
            // Safely update the extended splash screen image coordinates. This function will be fired in response to snapping, unsnapping, rotation, etc...
            if (splash != null)
            {
                // Update the coordinates of the splash screen image.
                splashImageRect = splash.ImageLocation;
                PositionImage();
            }
        }



        // Include code to be executed when the system has transitioned from the splash screen to the extended splash screen (application's first view).
        void DismissedEventHandler(SplashScreen sender, object e)
        {
            dismissed = true;

            // Navigate away from the app's extended splash screen after completing setup operations here...
            // This sample navigates away from the extended splash screen when the "Learn More" button is clicked.
        }
    }
}

if (e.PreviousExecutionState != ApplicationExecutionState.Running)
            {
                bool loadState = (e.PreviousExecutionState == ApplicationExecutionState.Terminated);
                ExtendedSplash extendedSplash = new ExtendedSplash(e.SplashScreen, loadState);
                Window.Current.Content = extendedSplash;
            }

            Window.Current.Activate();