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C# WPF 时钟动画(1/2)

内容目录

  1. 实现效果
  2. 业务场景
  3. 编码实现
  4. 本文参考
  5. 源码下载

1.实现效果

目前只实现了秒针动画，下篇文章实现完整效果，可在网站上查看，微信公众号今天只发布了一篇。

效果

2.业务场景

玩具

3.编码实现

工程简单，只更改一个主窗体文件，另加一个时钟背景图片

3.1 主窗体 MainWindow.xaml

布局时钟的时针、分针、秒针，及添加秒针动画，秒针动画写的比较啰嗦，只写了30秒，其实可以在MainWindow.xaml.cs文件中用for循环添加EasingDoubleKeyFrame，直接添加到xaml中占代码也不美观，暂时先这样吧，下篇文章有空改了。

<Window x:Class="Clock.MainWindow"

        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

        xmlns:local="clr-namespace:Clock"

        mc:Ignorable="d"

        AllowsTransparency="True" WindowStyle="None" ResizeMode="NoResize"

        Height="520" Width="520" WindowStartupLocation="CenterScreen" Background="{x:Null}">

    <Window.Resources>

        <Storyboard x:Key="sbseconds" RepeatBehavior="Forever">

            <DoubleAnimationUsingKeyFrames Storyboard.TargetName="second" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[2].(RotateTransform.Angle)">

                <EasingDoubleKeyFrame KeyTime="0" Value="-90">

                    <EasingDoubleKeyFrame.EasingFunction>

                        <BackEase EasingMode="EaseOut" Amplitude="0.4"/>

                    </EasingDoubleKeyFrame.EasingFunction>

                </EasingDoubleKeyFrame>

                <EasingDoubleKeyFrame KeyTime="00:00:1" Value="-84">

                    <EasingDoubleKeyFrame.EasingFunction>

                        <BackEase EasingMode="EaseOut" Amplitude="0.4"/>

                    </EasingDoubleKeyFrame.EasingFunction>

                </EasingDoubleKeyFrame>

                <EasingDoubleKeyFrame KeyTime="00:00:2" Value="-78">

                    <EasingDoubleKeyFrame.EasingFunction>

                        <BackEase EasingMode="EaseOut" Amplitude="0.4"/>

                    </EasingDoubleKeyFrame.EasingFunction>

                </EasingDoubleKeyFrame>

                <EasingDoubleKeyFrame KeyTime="00:00:3" Value="-72">

                    <EasingDoubleKeyFrame.EasingFunction>

                        <BackEase EasingMode="EaseOut" Amplitude="0.4"/>

                    </EasingDoubleKeyFrame.EasingFunction>

                </EasingDoubleKeyFrame>

                <EasingDoubleKeyFrame KeyTime="00:00:4" Value="-66">

                    <EasingDoubleKeyFrame.EasingFunction>

                        <BackEase EasingMode="EaseOut" Amplitude="0.4"/>

                    </EasingDoubleKeyFrame.EasingFunction>

                </EasingDoubleKeyFrame>

                <EasingDoubleKeyFrame KeyTime="00:00:5" Value="-60">

                    <EasingDoubleKeyFrame.EasingFunction>

                        <BackEase EasingMode="EaseOut" Amplitude="0.4"/>

                    </EasingDoubleKeyFrame.EasingFunction>

                </EasingDoubleKeyFrame>

                <EasingDoubleKeyFrame KeyTime="00:00:6" Value="-54">

                    <EasingDoubleKeyFrame.EasingFunction>

                        <BackEase EasingMode="EaseOut" Amplitude="0.4"/>

                    </EasingDoubleKeyFrame.EasingFunction>

                </EasingDoubleKeyFrame>

                <EasingDoubleKeyFrame KeyTime="00:00:7" Value="-48">

                    <EasingDoubleKeyFrame.EasingFunction>

                        <BackEase EasingMode="EaseOut" Amplitude="0.4"/>

                    </EasingDoubleKeyFrame.EasingFunction>

                </EasingDoubleKeyFrame>

                <EasingDoubleKeyFrame KeyTime="00:00:8" Value="-42">

                    <EasingDoubleKeyFrame.EasingFunction>

                        <BackEase EasingMode="EaseOut" Amplitude="0.4"/>

                    </EasingDoubleKeyFrame.EasingFunction>

                </EasingDoubleKeyFrame>

                <EasingDoubleKeyFrame KeyTime="00:00:9" Value="-36">

                    <EasingDoubleKeyFrame.EasingFunction>

                        <BackEase EasingMode="EaseOut" Amplitude="0.4"/>

                    </EasingDoubleKeyFrame.EasingFunction>

                </EasingDoubleKeyFrame>

                <EasingDoubleKeyFrame KeyTime="00:00:10" Value="-30">

                    <EasingDoubleKeyFrame.EasingFunction>

                        <BackEase EasingMode="EaseOut" Amplitude="0.4"/>

                    </EasingDoubleKeyFrame.EasingFunction>

                </EasingDoubleKeyFrame>

                <EasingDoubleKeyFrame KeyTime="00:00:11" Value="-24">

                    <EasingDoubleKeyFrame.EasingFunction>

                        <BackEase EasingMode="EaseOut" Amplitude="0.4"/>

                    </EasingDoubleKeyFrame.EasingFunction>

                </EasingDoubleKeyFrame>

                <EasingDoubleKeyFrame KeyTime="00:00:12" Value="-18">

                    <EasingDoubleKeyFrame.EasingFunction>

                        <BackEase EasingMode="EaseOut" Amplitude="0.4"/>

                    </EasingDoubleKeyFrame.EasingFunction>

                </EasingDoubleKeyFrame>

                <EasingDoubleKeyFrame KeyTime="00:00:13" Value="-12">

                    <EasingDoubleKeyFrame.EasingFunction>

                        <BackEase EasingMode="EaseOut" Amplitude="0.4"/>

                    </EasingDoubleKeyFrame.EasingFunction>

                </EasingDoubleKeyFrame>

                <EasingDoubleKeyFrame KeyTime="00:00:14" Value="-6">

                    <EasingDoubleKeyFrame.EasingFunction>

                        <BackEase EasingMode="EaseOut" Amplitude="0.4"/>

                    </EasingDoubleKeyFrame.EasingFunction>

                </EasingDoubleKeyFrame>

                <EasingDoubleKeyFrame KeyTime="00:00:15" Value="0">

                    <EasingDoubleKeyFrame.EasingFunction>

                        <BackEase EasingMode="EaseOut" Amplitude="0.4"/>

                    </EasingDoubleKeyFrame.EasingFunction>

                </EasingDoubleKeyFrame>

                <EasingDoubleKeyFrame KeyTime="00:00:16" Value="6">

                    <EasingDoubleKeyFrame.EasingFunction>

                        <BackEase EasingMode="EaseOut" Amplitude="0.4"/>

                    </EasingDoubleKeyFrame.EasingFunction>

                </EasingDoubleKeyFrame>

                <EasingDoubleKeyFrame KeyTime="00:00:17" Value="12">

                    <EasingDoubleKeyFrame.EasingFunction>

                        <BackEase EasingMode="EaseOut" Amplitude="0.4"/>

                    </EasingDoubleKeyFrame.EasingFunction>

                </EasingDoubleKeyFrame>

                <EasingDoubleKeyFrame KeyTime="00:00:18" Value="18">

                    <EasingDoubleKeyFrame.EasingFunction>

                        <BackEase EasingMode="EaseOut" Amplitude="0.4"/>

                    </EasingDoubleKeyFrame.EasingFunction>

                </EasingDoubleKeyFrame>

                <EasingDoubleKeyFrame KeyTime="00:00:19" Value="24">

                    <EasingDoubleKeyFrame.EasingFunction>

                        <BackEase EasingMode="EaseOut" Amplitude="0.4"/>

                    </EasingDoubleKeyFrame.EasingFunction>

                </EasingDoubleKeyFrame>

                <EasingDoubleKeyFrame KeyTime="00:00:20" Value="30">

                    <EasingDoubleKeyFrame.EasingFunction>

                        <BackEase EasingMode="EaseOut" Amplitude="0.4"/>

                    </EasingDoubleKeyFrame.EasingFunction>

                </EasingDoubleKeyFrame>

                <EasingDoubleKeyFrame KeyTime="00:00:21" Value="36">

                    <EasingDoubleKeyFrame.EasingFunction>

                        <BackEase EasingMode="EaseOut" Amplitude="0.4"/>

                    </EasingDoubleKeyFrame.EasingFunction>

                </EasingDoubleKeyFrame>

                <EasingDoubleKeyFrame KeyTime="00:00:22" Value="42">

                    <EasingDoubleKeyFrame.EasingFunction>

                        <BackEase EasingMode="EaseOut" Amplitude="0.4"/>

                    </EasingDoubleKeyFrame.EasingFunction>

                </EasingDoubleKeyFrame>

                <EasingDoubleKeyFrame KeyTime="00:00:23" Value="48">

                    <EasingDoubleKeyFrame.EasingFunction>

                        <BackEase EasingMode="EaseOut" Amplitude="0.4"/>

                    </EasingDoubleKeyFrame.EasingFunction>

                </EasingDoubleKeyFrame>

                <EasingDoubleKeyFrame KeyTime="00:00:24" Value="54">

                    <EasingDoubleKeyFrame.EasingFunction>

                        <BackEase EasingMode="EaseOut" Amplitude="0.4"/>

                    </EasingDoubleKeyFrame.EasingFunction>

                </EasingDoubleKeyFrame>

                <EasingDoubleKeyFrame KeyTime="00:00:25" Value="60">

                    <EasingDoubleKeyFrame.EasingFunction>

                        <BackEase EasingMode="EaseOut" Amplitude="0.4"/>

                    </EasingDoubleKeyFrame.EasingFunction>

                </EasingDoubleKeyFrame>

                <EasingDoubleKeyFrame KeyTime="00:00:26" Value="66">

                    <EasingDoubleKeyFrame.EasingFunction>

                        <BackEase EasingMode="EaseOut" Amplitude="0.4"/>

                    </EasingDoubleKeyFrame.EasingFunction>

                </EasingDoubleKeyFrame>

                <EasingDoubleKeyFrame KeyTime="00:00:27" Value="72">

                    <EasingDoubleKeyFrame.EasingFunction>

                        <BackEase EasingMode="EaseOut" Amplitude="0.4"/>

                    </EasingDoubleKeyFrame.EasingFunction>

                </EasingDoubleKeyFrame>

                <EasingDoubleKeyFrame KeyTime="00:00:28" Value="78">

                    <EasingDoubleKeyFrame.EasingFunction>

                        <BackEase EasingMode="EaseOut" Amplitude="0.4"/>

                    </EasingDoubleKeyFrame.EasingFunction>

                </EasingDoubleKeyFrame>

                <EasingDoubleKeyFrame KeyTime="00:00:29" Value="84">

                    <EasingDoubleKeyFrame.EasingFunction>

                        <BackEase EasingMode="EaseOut" Amplitude="0.4"/>

                    </EasingDoubleKeyFrame.EasingFunction>

                </EasingDoubleKeyFrame>

                <EasingDoubleKeyFrame KeyTime="00:00:30" Value="90">

                    <EasingDoubleKeyFrame.EasingFunction>

                        <BackEase EasingMode="EaseOut" Amplitude="0.4"/>

                    </EasingDoubleKeyFrame.EasingFunction>

                </EasingDoubleKeyFrame>

            </DoubleAnimationUsingKeyFrames>

        </Storyboard>

    </Window.Resources>

    <Window.Triggers>

        <EventTrigger RoutedEvent="FrameworkElement.Loaded">

            <BeginStoryboard Storyboard="{StaticResource sbseconds}"/>

        </EventTrigger>

    </Window.Triggers>

    <Grid>

        <Border BorderThickness="10" BorderBrush="Black" CornerRadius="300" Width="520" Height="520">

            <Grid Height="500" Width="500" HorizontalAlignment="Center" VerticalAlignment="Center">

                <Border CornerRadius="350">

                    <Border.Background>

                        <ImageBrush ImageSource="Assets/clock.png"/>

                    </Border.Background>

                </Border>

                <Border CornerRadius="350" Background="#778889BB"/>

                <Border x:Name="hour" CornerRadius="0 15 15 0" Height="10" Width="130" BorderThickness="3" BorderBrush="#FF66B01C" Margin="0,245,120,245" HorizontalAlignment="Right" RenderTransformOrigin="0,0.5">

                    <Border.RenderTransform>

                        <TransformGroup>

                            <ScaleTransform/>

                            <SkewTransform/>

                            <RotateTransform Angle="-90"/>

                            <TranslateTransform/>

                        </TransformGroup>

                    </Border.RenderTransform>

                </Border>

                <Border x:Name="minute" CornerRadius="0 15 15 0" Height="5" Width="160" BorderThickness="3" BorderBrush="#FFD15209" Margin="250.5,247,0,248" HorizontalAlignment="Left" RenderTransformOrigin="0,0.5">

                    <Border.RenderTransform>

                        <TransformGroup>

                            <ScaleTransform/>

                            <SkewTransform/>

                            <RotateTransform Angle="-90"/>

                            <TranslateTransform/>

                        </TransformGroup>

                    </Border.RenderTransform>

                </Border>

                <Border x:Name="second" CornerRadius="0 15 15 0" Height="3" Width="220" Background="Red" Margin="0,248,30,248" HorizontalAlignment="Right" RenderTransformOrigin="0,0.5">

                    <Border.RenderTransform>

                        <TransformGroup>

                            <ScaleTransform/>

                            <SkewTransform/>

                            <RotateTransform Angle="-90"/>

                            <TranslateTransform/>

                        </TransformGroup>

                    </Border.RenderTransform>

                </Border>

                <Ellipse Fill="Black" Width="20" Height="20" HorizontalAlignment="Center" VerticalAlignment="Center"/>

            </Grid>

        </Border>

    </Grid>

</Window>

4.本文参考

Design com WPF 大神的学习视频：1/2 - Creating a clock with Animations

5.代码下载

源码中实现了全部效果，大伙可以直接下载编译运行，但还是建议看大神视频学习，视频中使用Blend布局时钟、设置动画，类似PS(PhotoShop)，设计界面很是方便的。

Github源码下载：Clock

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