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我创建了一个 C# WPF 应用程序。因为我有有限的 UI 组件（标签、MediaElement、图像源（4））。我正在使用最大化窗口加载我的应用程序。当我启动我的 exe 时，黑屏会显示一秒钟，然后会出现实际的 UI。

我设置了一个属性，即 AllowsTranparency = True。它解决了上述问题，但要花费一个新的成本，即，如果将此属性设置为 true，则在 MediaElement 中播放的视频会滞后很多。

所以，这个解决方案被排除了。

应用程序.xaml：

<Application x:Class="MainWin.App"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:local="clr-namespace:MainWin"
             Startup="MainWindow.xaml">
</Application>

主窗口.xaml：

<Window x:Class="MainWin.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:MainWin"
        mc:Ignorable="d"
        Title="" Width="width" Height="height"
        Loaded="Window_Load"
        WindowState="Maximized"
        WindowStartupLocation="CenterScreen"
        WindowStyle="None"
        AllowsTransparency="False"
        Topmost="True"
        Opacity="0">
    <Grid x:Name="grid" Width="0" Height="0">
        <MediaElement x:Name="name" Opacity="0" Visibility="Visible" LoadedBehavior="Play" MediaEnded="Media_Ended" Source="loc" Margin="0,0,0,0"/>
        <Image Name="name" RenderOptions.BitmapScalingMode="HighQuality" Source="" Visibility="Hidden" Width="1400" Height="660" Opacity="0"/>
        <Image Name="name" RenderOptions.BitmapScalingMode="HighQuality" Source="" Stretch="Fill" Visibility="Hidden" Width="20" Height="12" Opacity="0"/>
        <Image Name="name" RenderOptions.BitmapScalingMode="HighQuality" Source="" Stretch="Fill" Visibility="Hidden" InkCanvas.Top="530" InkCanvas.Left="2330" Width="2000" Height="12" Opacity="0"/>
        <Image Name="name" RenderOptions.BitmapScalingMode="HighQuality" Source="" Stretch="Fill" Visibility="Hidden" InkCanvas.Top="530" InkCanvas.Left="2330" Width="20" Height="12" Opacity="0"/>
        <Image Name="name" RenderOptions.BitmapScalingMode="HighQuality" Source="" Stretch="Fill" Visibility="Hidden" Width="20" Height="12" Opacity="0"/>
        <Image Name="name" RenderOptions.BitmapScalingMode="HighQuality" Source="loc" Stretch="Fill" Visibility="Hidden" Width="0" Height="12" Opacity="0"/>
        <Image Name="name" RenderOptions.BitmapScalingMode="HighQuality" Source="loc" Stretch="Fill" Visibility="Hidden" Width="20" Height="12" Opacity="0"/>
        <Label x:Name="name" Content="text" Width="712" HorizontalAlignment="Center" HorizontalContentAlignment="Center" Visibility="Hidden" Foreground="White" FontSize="font" FontFamily="font" FontWeight="Regular" Opacity="0"/>
        <Label x:Name="name" Content="text" Width="1248" HorizontalAlignment="Center" HorizontalContentAlignment="Center" Foreground="White" FontSize="font" Visibility="Hidden" FontFamily="font"  FontWeight="Regular" Opacity="0"/>
        <Label x:Name="name" Content="text" Width="710" HorizontalAlignment="Center" HorizontalContentAlignment="Center" Visibility="Hidden" Foreground="White" FontSize="font" FontFamily="font"  FontWeight="Regular" Opacity="0"/>
        <Label x:Name="name" Content="text" Width="710"  HorizontalAlignment="Center" HorizontalContentAlignment="Center" Visibility="Hidden" Foreground="White" FontSize="font" FontFamily="font"  FontWeight="Regular" Opacity="0"/>
    </Grid>
</Window>

我想删除应用程序启动时出现的黑屏。

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1 回答 1

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更改标签的Background="Color you want"或透明。Window

于 2019-02-19T05:22:14.253 回答