Xamarin：windows uwp 的分段控制

Question

如何在 windows UWP 中为分段控件制作自定义渲染器。我按照此 link 自定义呈现 IOS 和 android 中的分段控件。但是我找不到 windows UWP 的任何内容。任何人都可以在此提供任何资源，或者是否有任何替代方法可以类似于 windows UWP 中的分段控制。

Answer 1

我用自定义样式的 RadioButtons 做过一次。为您的按钮编辑 RadioButton 样式 - 创建您想要的已选中和未选中样式，并为它们分配相同的组，这样您一次只能 select 一个按钮。不知道有没有更简单的方法。

编辑：示例代码，按照您想要的方式进行编辑：

<Page.Resources>
    <Style x:Key="RadioButtonStyle1" TargetType="RadioButton">
        <Setter Property="Background" Value="Transparent"/>
        <Setter Property="Foreground" Value="{ThemeResource RadioButtonContentForegroundThemeBrush}"/>
        <Setter Property="Padding" Value="0,0,0,0"/>
        <Setter Property="HorizontalAlignment" Value="Center"/>
        <Setter Property="VerticalAlignment" Value="Stretch"/>
        <Setter Property="HorizontalContentAlignment" Value="Center"/>
        <Setter Property="VerticalContentAlignment" Value="Center"/>
        <Setter Property="FontFamily" Value="{ThemeResource ContentControlThemeFontFamily}"/>
        <Setter Property="FontSize" Value="{ThemeResource ControlContentThemeFontSize}"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="RadioButton">
                    <Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" 
                        Background="{TemplateBinding Background}">
                        <VisualStateManager.VisualStateGroups>
                            <VisualStateGroup x:Name="CommonStates">
                                <VisualState x:Name="Normal"/>
                                <VisualState x:Name="PointerOver">

                                </VisualState>
                                <VisualState x:Name="Pressed">

                                </VisualState>
                                <VisualState x:Name="Disabled">
                                    <Storyboard>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="BackgroundRectangle">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource RadioButtonDisabledBackgroundThemeBrush}"/>
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="ContentPresenter">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource RadioButtonContentDisabledForegroundThemeBrush}"/>
                                        </ObjectAnimationUsingKeyFrames>
                                    </Storyboard>
                                </VisualState>
                            </VisualStateGroup>
                            <VisualStateGroup x:Name="CheckStates">
                                <VisualState x:Name="Checked">
                                    <Storyboard>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="BackgroundRectangle">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="Blue"/>
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="ContentPresenter">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="White"/>
                                        </ObjectAnimationUsingKeyFrames>
                                    </Storyboard>
                                </VisualState>
                                <VisualState x:Name="Unchecked">

                                </VisualState>
                                <VisualState x:Name="Indeterminate"/>
                            </VisualStateGroup>
                            <VisualStateGroup x:Name="FocusStates">
                                <VisualState x:Name="Focused">
                                    <Storyboard>
                                        <DoubleAnimation Duration="0" To="1" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="FocusVisualWhite"/>
                                        <DoubleAnimation Duration="0" To="1" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="FocusVisualBlack"/>
                                    </Storyboard>
                                </VisualState>
                                <VisualState x:Name="Unfocused"/>
                                <VisualState x:Name="PointerFocused"/>
                            </VisualStateGroup>
                        </VisualStateManager.VisualStateGroups>


                        <Grid HorizontalAlignment="Stretch">
                            <Grid x:Name="BackgroundRectangle" Background="Transparent">
                                <Border BorderThickness="1" BorderBrush="White" Margin="0" HorizontalAlignment="Stretch">
                                    <Rectangle Margin="0" StrokeThickness="{ThemeResource RadioButtonBorderThemeThickness}" HorizontalAlignment="Stretch" UseLayoutRounding="False"/>
                                </Border>
                                <TextBlock VerticalAlignment="Center" HorizontalAlignment="Center" x:Name="Title"></TextBlock>

                            </Grid>
                            <ContentPresenter x:Name="ContentPresenter" Foreground="White" AutomationProperties.AccessibilityView="Raw" 
                                          ContentTemplate="{TemplateBinding ContentTemplate}" ContentTransitions="{TemplateBinding ContentTransitions}" 
                                          Content="{TemplateBinding Content}" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" 
                                          Margin="{TemplateBinding Padding}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
                        </Grid>
                    </Border>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
</Page.Resources>


<Grid Height="40" Background="Black" BorderThickness="0">
    <Grid.ColumnDefinitions>
        <ColumnDefinition Width="10"/>
        <ColumnDefinition Width="Auto"/>
        <ColumnDefinition Width="Auto"/>
        <ColumnDefinition Width="Auto"/>
        <ColumnDefinition Width="Auto"/>
        <ColumnDefinition Width="10"/>
    </Grid.ColumnDefinitions>

    <RadioButton Height="30" Content="Button1" Grid.Column="1" Style="{StaticResource RadioButtonStyle1}" GroupName="MainGroup" Checked="Button1_OnChecked"></RadioButton>
    <RadioButton Height="30" Content="Button2" Grid.Column="2" Style="{StaticResource RadioButtonStyle1}" GroupName="MainGroup" Checked="Button2_OnChecked"></RadioButton>
    <RadioButton Height="30" Content="Button3" Grid.Column="3" Style="{StaticResource RadioButtonStyle1}" GroupName="MainGroup" Checked="Button3_OnChecked"></RadioButton>
    <RadioButton Height="30" Content="Button4" Grid.Column="4" Style="{StaticResource RadioButtonStyle1}" GroupName="MainGroup" Checked="Button4_OnChecked"></RadioButton>
</Grid>

Answer 2

我自己找到了解决方案。

最近找了个nuget包FreshEssentials. It has the implementation of segmented button group. Follow this github link找实现。简单易用。

Answer 3

现在有一个 Xamarin Forms 跨平台库可以做到这一点。

Plugin Segmented Control for .NET Standard

Xamarin：windows uwp 的分段控制

Xamarin : Segmented Control for windows uwp

c#

custom-renderer

xamarin.forms

uwp