UWP在导航视图中使用亚克力

Question

我正在研究UWP的压克力选项，遇到了一个奇怪的问题。本质上，我试图获取“导航”视图以使用自定义的“丙烯酸笔刷”。但是，主窗口背景比Navigationview更透明。我需要使NavigationView与当前主视图一样透明。香港专业教育学院附上图片，以帮助澄清这一点。很难解释：

正如您在左侧看到的那样，导航视图不如右侧的主要功能窗口透明。我需要交换它，以便NavigationView比MainPage更透明。

这是我的App.XAML

<Application
    x:Class="BS.App"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:BS">
    <Application.Resources>
        <AcrylicBrush x:Key="CustomAcrylicDark"
                      BackgroundSource="HostBackdrop"
                      TintColor="Gray"
                      TintOpacity="0.6"
                      FallbackColor="Black"/>
        <AcrylicBrush x:Key="CustomAcrylicLight"
                      BackgroundSource="HostBackdrop"
                      TintColor="White"
                      TintOpacity="0.6"
                      FallbackColor="White"/>       
    </Application.Resources>
</Application>

这是我的MainPage.XAML

<Page
    x:Class="BS.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:BS"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d"
    RequestedTheme="Dark"
    Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">

    <Page.Resources>

    </Page.Resources>
    <Grid>
        <NavigationView Background="{StaticResource CustomAcrylicDark}" PaneTitle="BS" IsBackButtonVisible="Collapsed" CompactModeThresholdWidth="9999" ExpandedModeThresholdWidth="9999" CompactPaneLength="96">
            <NavigationView.MenuItems>
                <NavigationViewItem Name="HItem" Content="HOME" Tag="HOME_Page" FontSize="22" HorizontalAlignment="Center" FontWeight="Bold" Foreground="MediumPurple"/>
                <NavigationViewItemSeparator/>
                <NavigationViewItem Name="OItem" Content="OVERVIEW" Tag="O_Page" FontSize="22" HorizontalAlignment="Center" FontWeight="Bold" Foreground="MediumPurple"/>
                <NavigationViewItem Name="BItem" Content="BILLS" Tag="B_Page" FontSize="22" HorizontalAlignment="Center" FontWeight="Bold" Foreground="MediumPurple"/>
                <NavigationViewItem Name="PItem" Content="PEOPLE" Tag="B_Page" FontSize="22" HorizontalAlignment="Center" FontWeight="Bold" Foreground="MediumPurple"/>
                <NavigationViewItem Name="TItem" Content="TRANSFERS" Tag="T_Page" FontSize="22" HorizontalAlignment="Center" FontWeight="Bold" Foreground="MediumPurple"/>
                <NavigationViewItem Name="PItem" Content="PAY DATES" Tag="P_Page" FontSize="22" HorizontalAlignment="Center" FontWeight="Bold" Foreground="MediumPurple"/>
            </NavigationView.MenuItems>
        </NavigationView>
    </Grid>
</Page>

先感谢您。

Answer 1

NavigationView建立在之上Splitview。在中Splitview，您会找到一个名为的属性，PaneBackground但NavigationView不允许您设置其PaneBackground属性Splitview。

但是，您并非不走运，在研究的模板时NavigationView，我发现该PaneBackground属性已绑定到ThemeResource被称为NavigationViewDefaultPaneBackground。因此，您的工作是覆盖此属性。像这样：

<Grid>
    <Grid.Resources>
        <AcrylicBrush x:Key="NavigationViewDefaultPaneBackground"
                  BackgroundSource="HostBackdrop"
                  TintColor="Gray"
                  TintOpacity="0.6"
                  FallbackColor="Black"/>
    </Grid.Resources>
    <NavigationView x:Name="Navview" Background="{StaticResource CustomAcrylicDark}" PaneTitle="BS" IsBackButtonVisible="Collapsed" 
                    CompactModeThresholdWidth="9999" ExpandedModeThresholdWidth="9999" CompactPaneLength="96">

        <NavigationView.MenuItems>
            <NavigationViewItem Name="HItem" Content="HOME" Tag="HOME_Page" FontSize="22" HorizontalAlignment="Center" FontWeight="Bold" Foreground="MediumPurple"/>
            <NavigationViewItemSeparator/>
            <NavigationViewItem Name="OItem" Content="OVERVIEW" Tag="O_Page" FontSize="22" HorizontalAlignment="Center" FontWeight="Bold" Foreground="MediumPurple"/>
            <NavigationViewItem Name="BItem" Content="BILLS" Tag="B_Page" FontSize="22" HorizontalAlignment="Center" FontWeight="Bold" Foreground="MediumPurple"/>
            <NavigationViewItem Name="PItem" Content="PEOPLE" Tag="B_Page" FontSize="22" HorizontalAlignment="Center" FontWeight="Bold" Foreground="MediumPurple"/>
            <NavigationViewItem Name="TItem" Content="TRANSFERS" Tag="T_Page" FontSize="22" HorizontalAlignment="Center" FontWeight="Bold" Foreground="MediumPurple"/>
            <NavigationViewItem Name="PItem2" Content="PAY DATES" Tag="P_Page" FontSize="22" HorizontalAlignment="Center" FontWeight="Bold" Foreground="MediumPurple"/>
        </NavigationView.MenuItems>
        <Button HorizontalAlignment="Center" Content="{x:Bind Navview.DisplayMode, Mode=OneWay}"/>
    </NavigationView>
</Grid>

结果如下：

因此，您可以使用此方法根据需要设置窗格的背景。希望能有所帮助。