Wpf VisualStateManager--当控件处于焦点时显示鼠标悬停状态
我正在使用Windows8样式(以前是metro)创建一个WPF按钮 我希望按钮的聚焦状态以坚实的背景显示。当鼠标在控件上时,我希望背景稍微变暗,以创建可以单击按钮的视觉提示 不幸的是,我在下面编写的XAML不起作用。聚焦状态显示正确,但当鼠标位于控件上方时,背景不会像我希望的那样变暗Wpf VisualStateManager--当控件处于焦点时显示鼠标悬停状态,wpf,styling,controltemplate,visualstatemanager,Wpf,Styling,Controltemplate,Visualstatemanager,我正在使用Windows8样式(以前是metro)创建一个WPF按钮 我希望按钮的聚焦状态以坚实的背景显示。当鼠标在控件上时,我希望背景稍微变暗,以创建可以单击按钮的视觉提示 不幸的是,我在下面编写的XAML不起作用。聚焦状态显示正确,但当鼠标位于控件上方时,背景不会像我希望的那样变暗 <Color x:Key="DoxCycleGreen"> #FF8DC63F </Color> <!-- Soft Interface : DoxCycle Green
<Color x:Key="DoxCycleGreen">
#FF8DC63F
</Color>
<!-- Soft Interface : DoxCycle Green -->
<Color x:Key="DoxCycleGreenSoft">
#FFC0DC8F
</Color>
<Style x:Key="MetroButton" TargetType="{x:Type Button}">
<Setter Property="FocusVisualStyle" Value="{x:Null}"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<Border Name="RootElement">
<VisualStateManager.VisualStateGroups>
<VisualStateGroup Name="CommonStates">
<VisualState Name="Normal" />
<VisualState Name="MouseOver">
<Storyboard>
<ColorAnimation Storyboard.TargetName="BackgroundColor" Storyboard.TargetProperty="Color" To="{StaticResource DoxCycleGreen}" Duration="0:0:0.150" />
<ColorAnimation Storyboard.TargetName="FontColor" Storyboard.TargetProperty="Color" To="White" Duration="0:0:0.150" />
</Storyboard>
</VisualState>
<VisualState Name="Focused">
<Storyboard>
<ColorAnimation Storyboard.TargetName="BackgroundColor" Storyboard.TargetProperty="Color" To="{StaticResource DoxCycleGreenSoft}" Duration="0:0:0.150" />
<ColorAnimation Storyboard.TargetName="FontColor" Storyboard.TargetProperty="Color" To="White" Duration="0:0:0.150" />
</Storyboard>
</VisualState>
<VisualState Name="Pressed">
<Storyboard>
<ColorAnimation Storyboard.TargetName="BackgroundColor" Storyboard.TargetProperty="Color" To="Transparent" Duration="0:0:0.150" />
<ColorAnimation Storyboard.TargetName="FontColor" Storyboard.TargetProperty="Color" To="{StaticResource DoxCycleGreen}" Duration="0:0:0.150" />
</Storyboard>
</VisualState>
<VisualState Name="Disabled">
<Storyboard>
<ColorAnimation Storyboard.TargetName="BorderColor" Storyboard.TargetProperty="Color" To="DarkGray" Duration="0:0:0.1" />
<ColorAnimation Storyboard.TargetName="FontColor" Storyboard.TargetProperty="Color" To="DarkGray" Duration="0:0:0.1" />
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Grid Background="Transparent" >
<Border BorderThickness="1,1,1,1" Padding="2">
<Border.BorderBrush>
<SolidColorBrush x:Name="BorderColor" Color="{StaticResource DoxCycleGreen}"/>
</Border.BorderBrush>
<Border.Background>
<SolidColorBrush x:Name="BackgroundColor" Color="White"/>
</Border.Background>
<ContentPresenter
x:Name="ContentSite"
VerticalAlignment="Center"
HorizontalAlignment="Center"
ContentSource="Content">
<TextBlock.Foreground>
<SolidColorBrush x:Name="FontColor" Color="{StaticResource DoxCycleGreen}"/>
</TextBlock.Foreground>
</ContentPresenter>
</Border>
</Grid>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
#FF8DC63F
#FFC0DC8F
我现在已经测试了您的代码。你这里有几个问题。但是,主要的问题是WPF控件一次只能处于特定状态组的一个可视状态。在这里的情况下,控件可以被聚焦和鼠标移动,WPF必须选择要应用的状态(它不能应用两个状态,因为它们处于同一状态组)。因此,在本例中,它只是将其保持在聚焦状态,而不是将其发送到鼠标悬停状态
如果控件的每个状态都位于不同的状态组中,则控件可以处于多个状态。发件人:
每个VisualStateGroup包含一组互斥的VisualState对象。也就是说,控件在每个VisualState组中始终恰好处于一种状态
因此,我们更正此代码的第一步是包含适当的状态组,这些状态组将允许按钮能够显示其聚焦状态,然后显示其鼠标悬停状态(其他可能的情况可以通过此更改更正,但这是您特别注意到的,您以前的方法没有得到的)
要做到这一点,我们需要小心地正确命名我们的州组和(特别是)我们的州名称。这是因为Button类内部的代码可能会发出类似于VisualStateManager.goState的调用(这是“verysSpecificStateName”,true)代码>(我没有检查Button类的实际源代码来验证这一点,但是在编写了需要启动状态更改的自定义控件之后,我知道它一定是这样的)。为了获得所需状态组和状态名称的列表,我们可以使用Expression Blend来“编辑”控件模板的副本(这将为我们填充所需的状态),或者找到它们。这些文件向我们表明,我们需要一个名为“焦点国家”的国家小组,以及该小组中的两个名为“焦点”和“非焦点”的国家(以及其他国家小组和国家)。另一方面,为了说明Button类是如何通过这些特定的命名状态启动其状态更改的,如果您通过将“焦点”状态名称替换为“拼写错误的焦点”来更改原始代码,您将看到您的按钮从未进入该状态
实施这第一个变更,我们可能会得到如下结果:
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal" />
<VisualState x:Name="MouseOver">
<Storyboard>
<ColorAnimation Storyboard.TargetName="BackgroundColor"
Storyboard.TargetProperty="Color"
To="{StaticResource DoxCycleGreen}" Duration="0:0:0.150" />
<ColorAnimation Storyboard.TargetName="FontColor" Storyboard.TargetProperty="Color"
To="White" Duration="0:0:0.150" />
</Storyboard>
</VisualState>
<VisualState x:Name="Pressed">
<Storyboard>
<ColorAnimation Storyboard.TargetName="BackgroundColor"
Storyboard.TargetProperty="Color"
To="Transparent" Duration="0:0:0.150" />
<ColorAnimation Storyboard.TargetName="FontColor"
Storyboard.TargetProperty="Color"
To="{StaticResource DoxCycleGreen}" Duration="0:0:0.150" />
</Storyboard>
</VisualState>
<VisualState x:Name="Disabled">
<Storyboard>
<ColorAnimation Storyboard.TargetName="BorderColor"
Storyboard.TargetProperty="Color" To="DarkGray" Duration="0:0:0.1" />
<ColorAnimation Storyboard.TargetName="FontColor"
Storyboard.TargetProperty="Color" To="DarkGray" Duration="0:0:0.1" />
</Storyboard>
</VisualState>
</VisualStateGroup>
<!-- Focus States -->
<VisualStateGroup x:Name="FocusStates">
<VisualState x:Name="Focused">
<Storyboard>
<ColorAnimation Storyboard.TargetName="BackgroundColor"
Storyboard.TargetProperty="Color"
To="{StaticResource DoxCycleGreenSoft}" Duration="0:0:0.150" />
<ColorAnimation Storyboard.TargetName="FontColor"
Storyboard.TargetProperty="Color"
To="White" Duration="0:0:0.150" />
</Storyboard>
</VisualState>
<VisualState x:Name="Unfocused"/>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
这在某种程度上解决了问题。但是,如果您在Expression Blend中查看此项,您会在状态组标题中注意到一条警告:
我们之所以收到此警告,是因为我们正在更改多个状态组中相同属性/对象对的值—在本例中是名为“BackgroundColor”的对象的“Color”属性。为什么这会成为一个问题?因为我前面说过,一个控件可以同时处于多个状态,如果这些状态位于不同的状态组中。因此,如果用户指定了按钮焦点,并且用户也将鼠标移到了按钮上,那么WPF可能无法确定要应用哪个动画,因为这两个州都表示要以不同的方式对相同的确切属性设置动画
而且,第一次改变并不能完全满足我们的需求。如果您尝试对按钮进行对焦,然后将鼠标悬停在按钮上方,则按钮会正确地从“正常”变为“对焦”,再变为“鼠标悬停”。但是如果现在停止悬停,您将看到按钮不会返回到其“聚焦”状态
有几种方法
<Color x:Key="DoxCycleGreen">
#FF8DC63F
</Color>
<SolidColorBrush x:Key="DoxCycleGreenBrush" Color="{StaticResource DoxCycleGreen}" />
<!-- Soft Interface : DoxCycle Green -->
<Color x:Key="DoxCycleGreenSoft">
#FFC0DC8F
</Color>
<SolidColorBrush x:Key="DoxCycleGreenSoftBrush" Color="{StaticResource DoxCycleGreenSoft}" />
<Style x:Key="ButtonStyle1" TargetType="{x:Type Button}">
<Setter Property="FocusVisualStyle" Value="{x:Null}"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<Border Name="RootElement">
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal" />
<VisualState x:Name="MouseOver">
<Storyboard>
<ColorAnimation Storyboard.TargetName="BackgroundColor"
Storyboard.TargetProperty="Color"
To="{StaticResource DoxCycleGreen}" Duration="0:0:0.150" />
<ColorAnimation Storyboard.TargetName="FontColor"
Storyboard.TargetProperty="Color"
To="White" Duration="0:0:0.150" />
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Opacity)" Storyboard.TargetName="MouseOverBorder">
<EasingDoubleKeyFrame KeyTime="0" Value="1"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Pressed">
<Storyboard>
<ColorAnimation Storyboard.TargetName="BackgroundColor"
Storyboard.TargetProperty="Color"
To="Transparent" Duration="0:0:0.150" />
<ColorAnimation Storyboard.TargetName="FontColor"
Storyboard.TargetProperty="Color"
To="{StaticResource DoxCycleGreen}" Duration="0:0:0.150" />
</Storyboard>
</VisualState>
<VisualState x:Name="Disabled">
<Storyboard>
<ColorAnimation Storyboard.TargetName="BorderColor"
Storyboard.TargetProperty="Color" To="DarkGray" Duration="0:0:0.1" />
<ColorAnimation Storyboard.TargetName="FontColor"
Storyboard.TargetProperty="Color" To="DarkGray" Duration="0:0:0.1" />
</Storyboard>
</VisualState>
</VisualStateGroup>
<!-- Focus States -->
<VisualStateGroup x:Name="FocusStates">
<VisualStateGroup.Transitions>
<VisualTransition GeneratedDuration="0:0:0.15"/>
</VisualStateGroup.Transitions>
<VisualState x:Name="Focused">
<Storyboard>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Opacity)"
Storyboard.TargetName="FocusBorder">
<EasingDoubleKeyFrame KeyTime="0" Value="1"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Opacity)" Storyboard.TargetName="ContentSiteWhiteForeground">
<EasingDoubleKeyFrame KeyTime="0" Value="1"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Unfocused"/>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Grid Background="Transparent" >
<Border x:Name="BaseBorder" BorderThickness="1,1,1,1">
<Border.BorderBrush>
<SolidColorBrush x:Name="BorderColor" Color="{StaticResource DoxCycleGreen}"/>
</Border.BorderBrush>
<Border.Background>
<SolidColorBrush x:Name="BackgroundColor" Color="White"/>
</Border.Background>
</Border>
<Border x:Name="FocusBorder"
BorderThickness="1,1,1,1"
Background="{DynamicResource DoxCycleGreenSoftBrush}"
Opacity="0" />
<Border x:Name="MouseOverBorder"
BorderThickness="1,1,1,1"
Background="{DynamicResource DoxCycleGreenBrush}"
Opacity="0" />
<ContentPresenter
x:Name="ContentSite"
VerticalAlignment="Center"
HorizontalAlignment="Center"
ContentSource="Content" Margin="2">
<TextBlock.Foreground>
<SolidColorBrush x:Name="FontColor" Color="{StaticResource DoxCycleGreen}"/>
</TextBlock.Foreground>
</ContentPresenter>
<ContentPresenter
x:Name="ContentSiteWhiteForeground"
VerticalAlignment="Center"
HorizontalAlignment="Center"
ContentSource="Content" Margin="2" Opacity="0">
<TextBlock.Foreground>
<SolidColorBrush Color="White" />
</TextBlock.Foreground>
</ContentPresenter>
</Grid>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<Style x:Key="MetroButton" TargetType="{x:Type Button}">
<Setter Property="SnapsToDevicePixels" Value="true"/>
<Setter Property="OverridesDefaultStyle" Value="true"/>
<Setter Property="MinHeight" Value="23"/>
<Setter Property="MinWidth" Value="75"/>
<Setter Property="FocusVisualStyle" Value="{x:Null}"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<Border Name="RootElement">
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal" />
<VisualState x:Name="MouseOver">
<Storyboard>
<ColorAnimation Storyboard.TargetName="BackgroundColor"
Storyboard.TargetProperty="Color"
To="{StaticResource DoxCycleGreen}" Duration="0:0:0.150" />
<ColorAnimation Storyboard.TargetName="FontColor"
Storyboard.TargetProperty="Color"
To="White" Duration="0:0:0.150" />
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Opacity)" Storyboard.TargetName="MouseOverBorder">
<EasingDoubleKeyFrame KeyTime="0" Value="1"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Pressed">
<Storyboard>
<ColorAnimation Storyboard.TargetName="BackgroundColor"
Storyboard.TargetProperty="Color"
To="Transparent" Duration="0:0:0.150" />
<ColorAnimation Storyboard.TargetName="FontColor"
Storyboard.TargetProperty="Color"
To="{StaticResource DoxCycleGreen}" Duration="0:0:0.150" />
</Storyboard>
</VisualState>
<VisualState x:Name="Disabled">
<Storyboard>
<ColorAnimation Storyboard.TargetName="BorderColor"
Storyboard.TargetProperty="Color" To="DarkGray" Duration="0:0:0.1" />
<ColorAnimation Storyboard.TargetName="FontColor"
Storyboard.TargetProperty="Color" To="DarkGray" Duration="0:0:0.1" />
</Storyboard>
</VisualState>
</VisualStateGroup>
<!-- Focus States -->
<VisualStateGroup x:Name="FocusStates">
<VisualStateGroup.Transitions>
<VisualTransition GeneratedDuration="0:0:0.15"/>
</VisualStateGroup.Transitions>
<VisualState x:Name="Focused">
<Storyboard>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Opacity)"
Storyboard.TargetName="FocusBorder">
<EasingDoubleKeyFrame KeyTime="0" Value="1"/>
</DoubleAnimationUsingKeyFrames>
<ColorAnimationUsingKeyFrames Storyboard.TargetName="FontColor" Storyboard.TargetProperty="Color">
<EasingColorKeyFrame KeyTime="0" Value="White"/>
</ColorAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Unfocused"/>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Grid Background="Transparent" >
<Border x:Name="BaseBorder" BorderThickness="1,1,1,1">
<Border.BorderBrush>
<SolidColorBrush x:Name="BorderColor" Color="{StaticResource DoxCycleGreen}"/>
</Border.BorderBrush>
<Border.Background>
<SolidColorBrush x:Name="BackgroundColor" Color="White"/>
</Border.Background>
</Border>
<Border x:Name="FocusBorder"
BorderThickness="1"
Background="{DynamicResource DoxCycleGreenSoftBrush}"
Opacity="0" />
<Border x:Name="MouseOverBorder"
BorderThickness="1"
Background="{DynamicResource DoxCycleGreenBrush}"
Opacity="0" />
<ContentPresenter x:Name="ContentSite"
VerticalAlignment="Center"
HorizontalAlignment="Center"
RecognizesAccessKey="True"
ContentSource="Content" Margin="8,4">
<TextBlock.Foreground>
<SolidColorBrush x:Name="FontColor" Color="{StaticResource DoxCycleGreen}"/>
</TextBlock.Foreground>
</ContentPresenter>
</Grid>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>