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.NET CORE(C#) WPF 抽屉式菜单

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本文背景代码实现本文参考源码1. 本文背景

使用简单动画实现抽屉式菜单

2. 代码实现

使用 .NET CORE 3.1 创建名为 “AnimatedColorfulMenu” 的WPF模板项目，添加1个Nuget库：MaterialDesignThemes，版本为最新预览版3.1.0-ci948。

解决方案主要文件目录组织结构：

AnimatedColorfulMenuApp.xamlMainWindow.xaml2.1 引入样式

文件【App.xaml】，在 StartupUri 中设置启动的视图【MainWindow.xaml】，并在【Application.Resources】节点增加 MaterialDesignThemes库的样式文件：

<Application.Resources>    <ResourceDictionary>        <ResourceDictionary.MergedDictionaries>            <ResourceDictionary Source="pack://application:,,,/MaterialDesignThemes.Wpf;component/Themes/MaterialDesignTheme.Light.xaml" />            <ResourceDictionary Source="pack://application:,,,/MaterialDesignThemes.Wpf;component/Themes/MaterialDesignTheme.Defaults.xaml" />            <ResourceDictionary Source="pack://application:,,,/MaterialDesignColors;component/Themes/Recommended/Primary/MaterialDesignColor.Blue.xaml" />            <ResourceDictionary Source="pack://application:,,,/MaterialDesignColors;component/Themes/Recommended/Accent/MaterialDesignColor.Indigo.xaml" />        </ResourceDictionary.MergedDictionaries>    </ResourceDictionary></Application.Resources>

2.2 演示窗体布局

文件【MainWindow.xaml】，代码不多，主要看左侧菜单，启动时，菜单在显示窗体左侧-150位置；点击展开菜单，使用简单的动画，慢慢呈现在显示窗体左侧，源码如下：

<Window x:Class="AnimatedColorfulMenu.MainWindow"        xmlns=";        xmlns:x=";        xmlns:d=";        xmlns:mc=";        xmlns:materialDesign=";        mc:Ignorable="d" Height="600" Width="1080" ResizeMode="NoResize"         WindowStartupLocation="CenterScreen" WindowStyle="None">    <Window.Resources>        <Storyboard x:Key="CloseMenu">            <DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.X)" Storyboard.TargetName="GridMenu">                <EasingDoubleKeyFrame KeyTime="0" Value="150"/>                <EasingDoubleKeyFrame KeyTime="0:0:0.5" Value="0"/>            </DoubleAnimationUsingKeyFrames>            <DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Opacity)" Storyboard.TargetName="GridBackground">                <EasingDoubleKeyFrame KeyTime="0" Value="1"/>                <EasingDoubleKeyFrame KeyTime="0:0:0.5" Value="0"/>            </DoubleAnimationUsingKeyFrames>        </Storyboard>        <Storyboard x:Key="OpenMenu">            <DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.X)" Storyboard.TargetName="GridMenu">                <EasingDoubleKeyFrame KeyTime="0" Value="0"/>                <EasingDoubleKeyFrame KeyTime="0:0:0.5" Value="150"/>            </DoubleAnimationUsingKeyFrames>            <DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Opacity)" Storyboard.TargetName="GridBackground">                <EasingDoubleKeyFrame KeyTime="0" Value="0"/>                <EasingDoubleKeyFrame KeyTime="0:0:0.5" Value="1"/>            </DoubleAnimationUsingKeyFrames>        </Storyboard>    </Window.Resources>    <Window.Triggers>        <EventTrigger RoutedEvent="ButtonBase.Click" SourceName="ButtonClose">            <BeginStoryboard x:Name="CloseMenu_BeginStoryboard" Storyboard="{StaticResource CloseMenu}"/>        </EventTrigger>        <EventTrigger RoutedEvent="ButtonBase.Click" SourceName="ButtonOpen">            <BeginStoryboard Storyboard="{StaticResource OpenMenu}"/>        </EventTrigger>    </Window.Triggers>    <Grid>        <Grid x:Name="GridBackground" Background="#55313131" Opacity="0"/>        <Button x:Name="ButtonOpen" HorizontalAlignment="Left" VerticalAlignment="Top" Background="{x:Null}" BorderBrush="{x:Null}" Width="30" Height="30" Padding="0">            <materialDesign:PackIcon Kind="Menu" Foreground="#FF313131"/>        </Button>        <!--左侧抽屉菜单，默认在显示窗体之外，点击菜单图标再通过简单的动画呈现出来-->        <Grid x:Name="GridMenu" Width="150" HorizontalAlignment="Left" Margin="-150 0 0 0" Background="White" RenderTransformOrigin="0.5,0.5">            <Grid.RenderTransform>                <TransformGroup>                    <ScaleTransform/>                    <SkewTransform/>                    <RotateTransform/>                    <TranslateTransform/>                </TransformGroup>            </Grid.RenderTransform>            <StackPanel>                <Image Height="140" Source="; Stretch="Fill"/>                <ListView Foreground="#FF313131" FontFamily="Champagne & Limousines" FontSize="18">                    <ListViewItem Height="45" Padding="0">                        <StackPanel Orientation="Horizontal" Margin="10 0">                            <materialDesign:PackIcon Kind="Recycle" Width="20" Height="20" Foreground="Gray" Margin="5" VerticalAlignment="Center"/>                            <TextBlock Text="回收" Margin="10"/>                        </StackPanel>                    </ListViewItem>                    <ListViewItem Height="45" Padding="0">                        <StackPanel Orientation="Horizontal" Margin="10 0">                            <materialDesign:PackIcon Kind="HelpCircleOutline" Width="20" Height="20" Foreground="#FFF08033" Margin="5" VerticalAlignment="Center"/>                            <TextBlock Text="帮助" Margin="10"/>                        </StackPanel>                    </ListViewItem>                    <ListViewItem Height="45" Padding="0">                        <StackPanel Orientation="Horizontal" Margin="10 0">                            <materialDesign:PackIcon Kind="Lightbulb" Width="20" Height="20" Foreground="Green" Margin="5" VerticalAlignment="Center"/>                            <TextBlock Text="发送反馈" Margin="10"/>                        </StackPanel>                    </ListViewItem>                    <ListViewItem Height="45" Padding="0">                        <StackPanel Orientation="Horizontal" Margin="10 0">                            <materialDesign:PackIcon Kind="Heart" Width="20" Height="20" Foreground="#FFD41515" Margin="5" VerticalAlignment="Center"/>                            <TextBlock Text="推荐" Margin="10"/>                        </StackPanel>                    </ListViewItem>                    <ListViewItem Height="45" Padding="0">                        <StackPanel Orientation="Horizontal" Margin="10 0">                            <materialDesign:PackIcon Kind="StarCircle" Width="20" Height="20" Foreground="#FFE6A701" Margin="5" VerticalAlignment="Center"/>                            <TextBlock Text="溢价认购" Margin="10"/>                        </StackPanel>                    </ListViewItem>                    <ListViewItem Height="45" Padding="0">                        <StackPanel Orientation="Horizontal" Margin="10 0">                            <materialDesign:PackIcon Kind="Settings" Width="20" Height="20" Foreground="#FF0069C1" Margin="5" VerticalAlignment="Center"/>                            <TextBlock Text="设置" Margin="10"/>                        </StackPanel>                    </ListViewItem>                </ListView>            </StackPanel>            <Button x:Name="ButtonClose" HorizontalAlignment="Right" VerticalAlignment="Top" Background="{x:Null}" Foreground="#CCC" BorderBrush="{x:Null}" Width="30" Height="30" Padding="0">                <materialDesign:PackIcon Kind="Close"/>            </Button>        </Grid>    </Grid></Window>

3.本文参考视频一：C# WPF Material Design UI: Animated Colorful Navigation Drawer，配套源码：AnimatedColorfulMenu。C# WPF开源控件库《MaterialDesignInXAML》4.源码

效果图实现代码在文中已经全部给出，可直接Copy，按解决方案目录组织代码文件即可运行。

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