Xaml 进行不带触发器的条件样式更改_Xaml_Winrt Xaml_Win Universal App_Uwp

Xaml 进行不带触发器的条件样式更改

xaml uwp

Xaml 进行不带触发器的条件样式更改,xaml,winrt-xaml,win-universal-app,uwp,Xaml,Winrt Xaml,Win Universal App,Uwp,我第一次尝试使用AppBar，在理解如何在风格上实现我想要的AppBar时遇到了一些困难以下是我定义的一些数据模板，以便在AppBar中的按钮上使用图标。我不喜欢stockAppBarButton，因为它将按钮和图标堆叠在一起。我无法看到如何使它们水平堆叠，所以我只使用自定义按钮模板 <DataTemplate x:Key="NewFolderIconTemplate"> <Path Data="M10,4L12,6H20A2,2 0 0,1 22,8V18A2,2

我第一次尝试使用AppBar，在理解如何在风格上实现我想要的AppBar时遇到了一些困难

以下是我定义的一些数据模板，以便在AppBar中的按钮上使用图标。我不喜欢stock

AppBarButton

，因为它将按钮和图标堆叠在一起。我无法看到如何使它们水平堆叠，所以我只使用自定义按钮模板

<DataTemplate x:Key="NewFolderIconTemplate">
    <Path Data="M10,4L12,6H20A2,2 0 0,1 22,8V18A2,2 0 0,1 20,20H4C2.89,20 2,19.1 2,18V6C2,4.89 2.89,4 4,4H10M15,9V12H12V14H15V17H17V14H20V12H17V9H15Z"
            Fill="Black" 
            HorizontalAlignment="Stretch"
            VerticalAlignment="Center"
            Width="24"
            Height="24"
            Margin="0 0 10 0"/>
</DataTemplate>
<DataTemplate x:Key="RefreshIconTemplate">
    <Path Data="M19,12H22.32L17.37,16.95L12.42,12H16.97C17,10.46 16.42,8.93 15.24,7.75C12.9,5.41 9.1,5.41 6.76,7.75C4.42,10.09 4.42,13.9 6.76,16.24C8.6,18.08 11.36,18.47 13.58,17.41L15.05,18.88C12,20.69 8,20.29 5.34,17.65C2.22,14.53 2.23,9.47 5.35,6.35C8.5,3.22 13.53,3.21 16.66,6.34C18.22,7.9 19,9.95 19,12Z"
            Fill="Black" 
            HorizontalAlignment="Stretch"
            VerticalAlignment="Center"
            Width="24"
            Height="24"
            Margin="0 0 10 0"/>
</DataTemplate>
<DataTemplate x:Key="SortingIconTemplate">
    <Path Data="M9.25,5L12.5,1.75L15.75,5H9.25M15.75,19L12.5,22.25L9.25,19H15.75M8.89,14.3H6L5.28,17H2.91L6,7H9L12.13,17H9.67L8.89,14.3M6.33,12.68H8.56L7.93,10.56L7.67,9.59L7.42,8.63H7.39L7.17,9.6L6.93,10.58L6.33,12.68M13.05,17V15.74L17.8,8.97V8.91H13.5V7H20.73V8.34L16.09,15V15.08H20.8V17H13.05Z"
            Fill="Black" 
            HorizontalAlignment="Stretch"
            VerticalAlignment="Center"
            Width="24"
            Height="24"
            Margin="0 0 10 0"/>
</DataTemplate>

接下来是实际的AppBar。我将一系列按钮放置在垂直堆栈面板内，并将堆栈面板放置在应用程序栏内，以便获得垂直菜单效果

<Page.TopAppBar>
    <AppBar HorizontalAlignment="Right"
            Background="Transparent">

        <AppBar.Resources>
            <Style TargetType="Button"
                   x:Key="AppBarButton">
                <Setter Property="HorizontalAlignment"
                        Value="Stretch" />
                <Setter Property="Background"
                        Value="{ThemeResource ApplicationPageBackgroundThemeBrush}" />
                <Setter Property="HorizontalContentAlignment"
                        Value="Left" />
            </Style>
        </AppBar.Resources>

        <StackPanel HorizontalAlignment="Right">
            <Button Command="{Binding Path=RefreshDirectoryListCommand}"
                    Style="{StaticResource AppBarButton}">
                <StackPanel Orientation="Horizontal">
                    <ContentControl ContentTemplate="{StaticResource RefreshIconTemplate}"
                                    VerticalAlignment="Center"
                                    Margin="0 0 10 0"/>
                    <TextBlock Text="Refresh" />
                </StackPanel>
            </Button>
            <Button Command="{Binding Path=CreateNewFolderCommand}"
                    Style="{StaticResource AppBarButton}">
                <StackPanel Orientation="Horizontal">
                    <ContentControl ContentTemplate="{StaticResource NewFolderIconTemplate}"
                                    VerticalAlignment="Center"
                                    Margin="0 0 10 0"/>
                    <TextBlock Text="New Folder" />
                </StackPanel>
            </Button>
            <Button Command="{Binding Path=SortListCommand}"
                    Style="{StaticResource AppBarButton}">
                <StackPanel Orientation="Horizontal">
                    <ContentControl ContentTemplate="{StaticResource SortingIconTemplate}"
                                    VerticalAlignment="Center"
                                    Margin="0 0 10 0"/>
                    <TextBlock Text="Sort" />
                </StackPanel>
            </Button>
        </StackPanel>
    </AppBar>
</Page.TopAppBar>



当我将鼠标悬停在它们上时，将渲染边框。UWP应用程序似乎不再具有触发器，那么改变鼠标悬停的最佳方式是什么？我仍然可以通过样式来完成，还是必须替换控件模板

在我的AppBar中选择一个按钮会使该按钮变为半透明，从而允许其下方的内容渗入。最好的方式是什么？我希望保留模糊动画，并删除透明度：/

AppBar本身的背景设置为白色，但当我将鼠标移到它上面时，背景为灰色。我想，一旦我知道如何解决类似的边界问题和按钮上的透明度问题，这个问题就可以解决了

这似乎更像是我不知道如何正确地设置缺少触发器的样式的问题。其他人通常做什么来实现这些影响，构建自定义控件模板？如果是这样，Microsoft是否为原始模板提供XAML，这样您就不必100%从头开始？
是的，通常我们需要使用自定义控件模板来实现这些效果。Microsoft为默认模板提供了XAML代码，您可以在中找到它们。同样在Visual Studio中，打开文档大纲视图，选择要编辑的控件，右键单击，然后选择“编辑模板”选项，然后选择“编辑cpoy…”。在此之后，您可以在您选择的位置看到默认模板。默认情况下，它位于您的
中。这里我们需要和的模板

有没有办法将ApPBar配置为按此方式运行，或者我必须设置自定义控件模板的样式
在AppBar
的模板中，我们可以看到以下代码：
<Grid x:Name="ContentRoot" ... >
    <Grid.ColumnDefinitions>
        <ColumnDefinition Width="*"/>
        <ColumnDefinition Width="Auto"/>
    </Grid.ColumnDefinitions>
    ...
    <ContentControl x:Name="ContentControl" ... />
    <Button x:Name="ExpandButton" Grid.Column="1" ... >
    ...
<Grid>

<VisualState x:Name="PointerOver">
    <Storyboard>
        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
            Storyboard.TargetProperty="BorderBrush">
            <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightBaseMediumLowBrush}" />
        </ObjectAnimationUsingKeyFrames>
        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
        Storyboard.TargetProperty="Foreground">
            <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightBaseHighBrush}" />
        </ObjectAnimationUsingKeyFrames>
        <PointerUpThemeAnimation Storyboard.TargetName="RootGrid" />
    </Storyboard>
</VisualState>
<VisualState x:Name="Pressed">
    <Storyboard>
        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="RootGrid"
        Storyboard.TargetProperty="Background">
            <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlBackgroundBaseMediumLowBrush}" />
        </ObjectAnimationUsingKeyFrames>
        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
        Storyboard.TargetProperty="BorderBrush">
            <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightTransparentBrush}" />
        </ObjectAnimationUsingKeyFrames>
        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
        Storyboard.TargetProperty="Foreground">
            <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightBaseHighBrush}" />
        </ObjectAnimationUsingKeyFrames>
        <PointerDownThemeAnimation Storyboard.TargetName="RootGrid" />
    </Storyboard>
</VisualState>

要在鼠标悬停时删除边框，可以删除
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
    Storyboard.TargetProperty="BorderBrush">
    <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightBaseMediumLowBrush}" />
</ObjectAnimationUsingKeyFrames>

在“按下”VisualState
以移除透明度

我想，一旦我知道如何解决类似的边界问题和按钮上的透明度问题，这个问题就可以解决了
是的，这是按钮上的类似问题。“ExpandButton”具有以下样式：
<Style x:Key="EllipsisButton" TargetType="Button">
    <Setter Property="Background" Value="Transparent"/>
    <Setter Property="Foreground" Value="{ThemeResource SystemControlForegroundBaseHighBrush}"/>
    <Setter Property="BorderThickness" Value="0"/>
    <Setter Property="Padding" Value="0,0,9,0"/>
    <Setter Property="HorizontalAlignment" Value="Stretch"/>
    <Setter Property="HorizontalContentAlignment" Value="Right"/>
    <Setter Property="VerticalAlignment" Value="Stretch"/>
    <Setter Property="VerticalContentAlignment" Value="Top"/>
    <Setter Property="FontFamily" Value="{ThemeResource ContentControlThemeFontFamily}"/>
    <Setter Property="FontWeight" Value="SemiBold"/>
    <Setter Property="FontSize" Value="{ThemeResource ControlContentThemeFontSize}"/>
    <Setter Property="Width" Value="{ThemeResource AppBarExpandButtonThemeWidth}"/>
    <Setter Property="UseSystemFocusVisuals" Value="True"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="Button">
                <Grid>
                    <VisualStateManager.VisualStateGroups>
                        <VisualStateGroup x:Name="CommonStates">
                            <VisualState x:Name="Normal"/>
                            <VisualState x:Name="PointerOver">
                                <Storyboard>
                                    <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="ContentPresenter">
                                        <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightListLowBrush}"/>
                                    </ObjectAnimationUsingKeyFrames>
                                    <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="ContentPresenter">
                                        <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightAltBaseHighBrush}"/>
                                    </ObjectAnimationUsingKeyFrames>
                                </Storyboard>
                            </VisualState>
                            <VisualState x:Name="Pressed">
                                <Storyboard>
                                    <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="ContentPresenter">
                                        <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightListMediumBrush}"/>
                                    </ObjectAnimationUsingKeyFrames>
                                </Storyboard>
                            </VisualState>
                            <VisualState x:Name="Disabled">
                                <Storyboard>
                                    <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="ContentPresenter">
                                        <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlDisabledBaseLowBrush}"/>
                                    </ObjectAnimationUsingKeyFrames>
                                </Storyboard>
                            </VisualState>
                        </VisualStateGroup>
                    </VisualStateManager.VisualStateGroups>
                    <ContentPresenter x:Name="ContentPresenter" AutomationProperties.AccessibilityView="Raw" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" ContentTemplate="{TemplateBinding ContentTemplate}" ContentTransitions="{TemplateBinding ContentTransitions}" HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}" Padding="{TemplateBinding Padding}" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"/>
                </Grid>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>



您还需要在“PointerOver”VisualState
中更改背景。但请注意，如果您的样式是在
中定义的，则需要将此样式的键更改为其他类似“MyEllipsisButton”的键，并在AppBar的模板中将此新样式设置为名为“EllipsisButton”的按钮，否则AppBar仍将使用“EllipsisButton”在系统的Generic.xaml中定义的样式和您的自定义样式将不起作用

<Style x:Key="EllipsisButton" TargetType="Button">
    <Setter Property="Background" Value="Transparent"/>
    <Setter Property="Foreground" Value="{ThemeResource SystemControlForegroundBaseHighBrush}"/>
    <Setter Property="BorderThickness" Value="0"/>
    <Setter Property="Padding" Value="0,0,9,0"/>
    <Setter Property="HorizontalAlignment" Value="Stretch"/>
    <Setter Property="HorizontalContentAlignment" Value="Right"/>
    <Setter Property="VerticalAlignment" Value="Stretch"/>
    <Setter Property="VerticalContentAlignment" Value="Top"/>
    <Setter Property="FontFamily" Value="{ThemeResource ContentControlThemeFontFamily}"/>
    <Setter Property="FontWeight" Value="SemiBold"/>
    <Setter Property="FontSize" Value="{ThemeResource ControlContentThemeFontSize}"/>
    <Setter Property="Width" Value="{ThemeResource AppBarExpandButtonThemeWidth}"/>
    <Setter Property="UseSystemFocusVisuals" Value="True"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="Button">
                <Grid>
                    <VisualStateManager.VisualStateGroups>
                        <VisualStateGroup x:Name="CommonStates">
                            <VisualState x:Name="Normal"/>
                            <VisualState x:Name="PointerOver">
                                <Storyboard>
                                    <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="ContentPresenter">
                                        <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightListLowBrush}"/>
                                    </ObjectAnimationUsingKeyFrames>
                                    <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="ContentPresenter">
                                        <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightAltBaseHighBrush}"/>
                                    </ObjectAnimationUsingKeyFrames>
                                </Storyboard>
                            </VisualState>
                            <VisualState x:Name="Pressed">
                                <Storyboard>
                                    <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="ContentPresenter">
                                        <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightListMediumBrush}"/>
                                    </ObjectAnimationUsingKeyFrames>
                                </Storyboard>
                            </VisualState>
                            <VisualState x:Name="Disabled">
                                <Storyboard>
                                    <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="ContentPresenter">
                                        <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlDisabledBaseLowBrush}"/>
                                    </ObjectAnimationUsingKeyFrames>
                                </Storyboard>
                            </VisualState>
                        </VisualStateGroup>
                    </VisualStateManager.VisualStateGroups>
                    <ContentPresenter x:Name="ContentPresenter" AutomationProperties.AccessibilityView="Raw" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" ContentTemplate="{TemplateBinding ContentTemplate}" ContentTransitions="{TemplateBinding ContentTransitions}" HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}" Padding="{TemplateBinding Padding}" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"/>
                </Grid>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>