C# uwp模糊屏幕的一部分

我正在使用UWP社区工具包创建模糊，如下所示：

<Grid x:Name="gridContent" VerticalAlignment="Stretch" HorizontalAlignment="Stretch">
        <interactivity:Interaction.Behaviors>
            <behaviors:Blur x:Name="BlurBehavior"
                Value="0"
                Duration="0"
                Delay="0"
                AutomaticallyStart="True"/>
        </interactivity:Interaction.Behaviors>
</Grid>

这对整个网格来说效果很好

但是，我的问题是，现在这个网格中有一个listview，我想在该listview中创建半透明的自定义标题，我只想模糊标题下的内容。因此，该标题下的内容将动态更改

有人知道如何做到这一点吗？

在内容网格内的单独网格中使用模糊

下面是一个代码示例

<Grid Name="MainGrid">
    <ListView>
        ....
    </ListView>
    <Grid VerticalAlignment="Top" HorizontalAlignment="Stretch">
        <interactivity:Interaction.Behaviors>
            <behaviors:Blur Value="25" Duration="0" Delay="0" AutomaticallyStart="True"/>
        </interactivity:Interaction.Behaviors>

        <!-- If you want color shade -->
        <Grid.Background>
            <SolidColorBrush Color="Red" Opacity="0.5"/>
        </Grid.Background>
    </Grid>
</Grid>

有关更多信息，请参阅内容网格内的单独网格中使用模糊

下面是一个代码示例

<Grid Name="MainGrid">
    <ListView>
        ....
    </ListView>
    <Grid VerticalAlignment="Top" HorizontalAlignment="Stretch">
        <interactivity:Interaction.Behaviors>
            <behaviors:Blur Value="25" Duration="0" Delay="0" AutomaticallyStart="True"/>
        </interactivity:Interaction.Behaviors>

        <!-- If you want color shade -->
        <Grid.Background>
            <SolidColorBrush Color="Red" Opacity="0.5"/>
        </Grid.Background>
    </Grid>
</Grid>

有关更多信息，请参阅默认情况下，ListView的标题可随内容一起滚动。一个更优雅的解决方案是将标题模板提取到ScrollViewer之外并使其模糊。注意：最初需要给内容添加一个填充以给标题留出空间，并且顶部填充值应等于标题的高度

你可以用一种风格做任何事情-

<Application.Resources>
    <x:Double x:Key="ListViewHeaderHeight">200</x:Double>
    <Thickness x:Key="ListViewContentMargin" Top="{StaticResource ListViewHeaderHeight}"></Thickness>

    <Style x:Key="BlurredHeaderListViewStyle" TargetType="ListView">
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="ListView">
                    <Grid BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}">
                        <ScrollViewer x:Name="ScrollViewer" AutomationProperties.AccessibilityView="Raw" BringIntoViewOnFocusChange="{TemplateBinding ScrollViewer.BringIntoViewOnFocusChange}" HorizontalScrollMode="{TemplateBinding ScrollViewer.HorizontalScrollMode}" HorizontalScrollBarVisibility="{TemplateBinding ScrollViewer.HorizontalScrollBarVisibility}" IsHorizontalRailEnabled="{TemplateBinding ScrollViewer.IsHorizontalRailEnabled}" IsHorizontalScrollChainingEnabled="{TemplateBinding ScrollViewer.IsHorizontalScrollChainingEnabled}" IsVerticalScrollChainingEnabled="{TemplateBinding ScrollViewer.IsVerticalScrollChainingEnabled}" IsVerticalRailEnabled="{TemplateBinding ScrollViewer.IsVerticalRailEnabled}" IsDeferredScrollingEnabled="{TemplateBinding ScrollViewer.IsDeferredScrollingEnabled}" TabNavigation="{TemplateBinding TabNavigation}" VerticalScrollBarVisibility="{TemplateBinding ScrollViewer.VerticalScrollBarVisibility}" VerticalScrollMode="{TemplateBinding ScrollViewer.VerticalScrollMode}" ZoomMode="{TemplateBinding ScrollViewer.ZoomMode}">
                            <ItemsPresenter Margin="{StaticResource ListViewContentMargin}" FooterTransitions="{TemplateBinding FooterTransitions}" FooterTemplate="{TemplateBinding FooterTemplate}" Footer="{TemplateBinding Footer}" HeaderTransitions="{TemplateBinding HeaderTransitions}" Padding="{TemplateBinding Padding}"/>
                        </ScrollViewer>

                        <ContentPresenter x:Name="HeaderPresenter" Background="Transparent" Height="{StaticResource ListViewHeaderHeight}" ContentTemplate="{TemplateBinding HeaderTemplate}" Content="{TemplateBinding Header}" VerticalAlignment="Top">
                            <interactivity:Interaction.Behaviors>
                                <behaviors:Blur x:Name="BlurBehavior" Value="12" />
                            </interactivity:Interaction.Behaviors>
                        </ContentPresenter>
                    </Grid>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
</Application.Resources>

后果 默认情况下，ListView的标题可以与内容一起滚动。一个更优雅的解决方案是将标题模板提取到ScrollViewer之外并使其模糊。注意：最初需要给内容添加一个填充以给标题留出空间，并且顶部填充值应等于标题的高度

你可以用一种风格做任何事情-

<Application.Resources>
    <x:Double x:Key="ListViewHeaderHeight">200</x:Double>
    <Thickness x:Key="ListViewContentMargin" Top="{StaticResource ListViewHeaderHeight}"></Thickness>

    <Style x:Key="BlurredHeaderListViewStyle" TargetType="ListView">
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="ListView">
                    <Grid BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}">
                        <ScrollViewer x:Name="ScrollViewer" AutomationProperties.AccessibilityView="Raw" BringIntoViewOnFocusChange="{TemplateBinding ScrollViewer.BringIntoViewOnFocusChange}" HorizontalScrollMode="{TemplateBinding ScrollViewer.HorizontalScrollMode}" HorizontalScrollBarVisibility="{TemplateBinding ScrollViewer.HorizontalScrollBarVisibility}" IsHorizontalRailEnabled="{TemplateBinding ScrollViewer.IsHorizontalRailEnabled}" IsHorizontalScrollChainingEnabled="{TemplateBinding ScrollViewer.IsHorizontalScrollChainingEnabled}" IsVerticalScrollChainingEnabled="{TemplateBinding ScrollViewer.IsVerticalScrollChainingEnabled}" IsVerticalRailEnabled="{TemplateBinding ScrollViewer.IsVerticalRailEnabled}" IsDeferredScrollingEnabled="{TemplateBinding ScrollViewer.IsDeferredScrollingEnabled}" TabNavigation="{TemplateBinding TabNavigation}" VerticalScrollBarVisibility="{TemplateBinding ScrollViewer.VerticalScrollBarVisibility}" VerticalScrollMode="{TemplateBinding ScrollViewer.VerticalScrollMode}" ZoomMode="{TemplateBinding ScrollViewer.ZoomMode}">
                            <ItemsPresenter Margin="{StaticResource ListViewContentMargin}" FooterTransitions="{TemplateBinding FooterTransitions}" FooterTemplate="{TemplateBinding FooterTemplate}" Footer="{TemplateBinding Footer}" HeaderTransitions="{TemplateBinding HeaderTransitions}" Padding="{TemplateBinding Padding}"/>
                        </ScrollViewer>

                        <ContentPresenter x:Name="HeaderPresenter" Background="Transparent" Height="{StaticResource ListViewHeaderHeight}" ContentTemplate="{TemplateBinding HeaderTemplate}" Content="{TemplateBinding Header}" VerticalAlignment="Top">
                            <interactivity:Interaction.Behaviors>
                                <behaviors:Blur x:Name="BlurBehavior" Value="12" />
                            </interactivity:Interaction.Behaviors>
                        </ContentPresenter>
                    </Grid>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
</Application.Resources>

后果

---

可能是复制品，或者他们正在使用新的丙烯酸系统，可能是复制品，或者他们正在使用新的丙烯酸系统，这只会模糊容器的内容，而不是容器后面的内容。不。先试试看。我用这种方法在汉堡菜单中创建了磨砂玻璃效果。下面是一个代码示例，如何使此标头固定，它正在移动？@user3239349如果您想要固定标头，那么使用ListView.header是没有意义的。只需将标题内容放在列表视图上方即可。@user3239349发生了什么事？这只会模糊容器的内容，而不会模糊容器后面的内容。否。先试试看。我用这种方法在汉堡菜单中创建了磨砂玻璃效果。下面是一个代码示例，如何使此标头固定，它正在移动？@user3239349如果您想要固定标头，那么使用ListView.header是没有意义的。只需将标题内容放在ListView上方。@user3239349发生了什么事？无法反序列化XBF元数据属性列表，因为在类型“Microsoft.Xaml.Interactivity.Interaction”中找不到“行为”。[行：0位置：0]你知道我做错了什么吗？我包含了xmlns:interactivity=using:Microsoft.Xaml.interactivity xmlns:behavies=using:Microsoft.Toolkit.Uwp.UI.Animations.behavior请确保已包含。无法反序列化XBF元数据属性列表，因为在类型“Microsoft.Xaml.interactivity.interactivity”中找不到“行为”。[行：0位置：0]你知道我做错了什么吗？我包括了xmlns:interactivity=using:Microsoft.Xaml.interactivity xmlns:behavies=using:Microsoft.Toolkit.Uwp.UI.Animations.behavior确保您有。