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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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