如何在 WPF 中创建类似 Windows 8 风格的进度环？
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How to create a Progress Ring like Windows 8 Style in WPF?
提问by Debhere
I want to show progress in my Desktop apps like Windows 8 ProgressRing. This type of progress is shown at times of installation or when Windows Start, but this control can be used in many applications as its very clean and modern, but I don't know how to achieve that. The progress ring image is here.
我想在我的桌面应用程序（如 Windows 8 ）中显示进度ProgressRing。这种类型的进度会在安装时或 Windows 启动时显示，但这种控件可以在许多应用程序中使用，因为它非常干净和现代，但我不知道如何实现。进度环图像在这里。
Please see the image:
请看图片：
May I know how do I code for it may be in XAML or in Code? I have seen that in WPF ProgressRingcontrol is not present, so I have to go to some custom control. Idea link or suggestions please how can I proceed.
我可以知道如何使用 XAML 或 Code 对其进行编码吗？我已经看到在 WPFProgressRing中不存在控件，所以我必须去一些自定义控件。想法链接或建议请我如何继续。
采纳答案by Stewbob
Using MahApps.Metrowould be much simpler, but given below is a simple Metro-like wait indicator showing how it would be done in XAML.
使用MahApps.Metro会简单得多，但下面给出了一个简单的类似 Metro 的等待指示器，显示了它是如何在 XAML 中完成的。
<Viewbox>
<Canvas Width="50" Height="50"
HorizontalAlignment="Left"
VerticalAlignment="Top">
<Path Data="M50,27.5 C50,24.23333 45,24.23333 45,27.5 C45,30.83333 50,30.83333 50,27.5"
Fill="#FFFFFFFF"
RenderTransformOrigin="0.5,0.83333">
<Path.RenderTransform >
<RotateTransform x:Name="_rot1" Angle="0"/>
</Path.RenderTransform>
<Path.Triggers>
<EventTrigger RoutedEvent="Path.Loaded">
<BeginStoryboard>
<Storyboard>
<DoubleAnimationUsingKeyFrames Storyboard.TargetName="_rot1"
Storyboard.TargetProperty="Angle"
RepeatBehavior="Forever">
<EasingDoubleKeyFrame KeyTime="0:0:0" Value="360"/>
<EasingDoubleKeyFrame KeyTime="0:0:2" Value="0">
<EasingDoubleKeyFrame.EasingFunction>
<PowerEase Power="1.3" EasingMode="EaseInOut"/>
</EasingDoubleKeyFrame.EasingFunction>
</EasingDoubleKeyFrame>
<EasingDoubleKeyFrame KeyTime="0:0:3" Value="0"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</Path.Triggers>
</Path>
<Path Data="M50,27.5 C50,24.23333 45,24.23333 45,27.5 C45,30.83333 50,30.83333 50,27.5"
Fill="#DDFFFFFF"
RenderTransformOrigin="0.5,0.83333">
<Path.RenderTransform>
<RotateTransform x:Name="_rot2" Angle="13"/>
</Path.RenderTransform>
<Path.Triggers>
<EventTrigger RoutedEvent="Path.Loaded">
<BeginStoryboard>
<Storyboard>
<DoubleAnimationUsingKeyFrames Storyboard.TargetName="_rot2"
Storyboard.TargetProperty="Angle"
RepeatBehavior="Forever">
<EasingDoubleKeyFrame KeyTime="0:0:0" Value="13"/>
<EasingDoubleKeyFrame KeyTime="0:0:0.2" Value="13"/>
<EasingDoubleKeyFrame KeyTime="0:0:2.2" Value="-347">
<EasingDoubleKeyFrame.EasingFunction>
<PowerEase Power="1.3" EasingMode="EaseInOut"/>
</EasingDoubleKeyFrame.EasingFunction>
</EasingDoubleKeyFrame>
<EasingDoubleKeyFrame KeyTime="0:0:3" Value="-347"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</Path.Triggers>
</Path>
<Path Data="M50,27.5 C50,24.23333 45,24.23333 45,27.5 C45,30.83333 50,30.83333 50,27.5"
Fill="#BBFFFFFF"
RenderTransformOrigin="0.5,0.83333">
<Path.RenderTransform>
<RotateTransform x:Name="_rot3" Angle="26"/>
</Path.RenderTransform>
<Path.Triggers>
<EventTrigger RoutedEvent="Path.Loaded">
<BeginStoryboard>
<Storyboard>
<DoubleAnimationUsingKeyFrames Storyboard.TargetName="_rot3"
Storyboard.TargetProperty="Angle"
RepeatBehavior="Forever">
<EasingDoubleKeyFrame KeyTime="0:0:0" Value="26"/>
<EasingDoubleKeyFrame KeyTime="0:0:0.4" Value="26"/>
<EasingDoubleKeyFrame KeyTime="0:0:2.4" Value="-334">
<EasingDoubleKeyFrame.EasingFunction>
<PowerEase Power="1.3" EasingMode="EaseInOut"/>
</EasingDoubleKeyFrame.EasingFunction>
</EasingDoubleKeyFrame>
<EasingDoubleKeyFrame KeyTime="0:0:3" Value="-334"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</Path.Triggers>
</Path>
<Path Data="M50,27.5 C50,24.23333 45,24.23333 45,27.5 C45,30.83333 50,30.83333 50,27.5"
Fill="#99FFFFFF"
RenderTransformOrigin="0.5,0.83333">
<Path.RenderTransform>
<RotateTransform x:Name="_rot4" Angle="39"/>
</Path.RenderTransform>
<Path.Triggers>
<EventTrigger RoutedEvent="Path.Loaded">
<BeginStoryboard>
<Storyboard>
<DoubleAnimationUsingKeyFrames Storyboard.TargetName="_rot4"
Storyboard.TargetProperty="Angle"
RepeatBehavior="Forever">
<EasingDoubleKeyFrame KeyTime="0:0:0" Value="39"/>
<EasingDoubleKeyFrame KeyTime="0:0:0.6" Value="39"/>
<EasingDoubleKeyFrame KeyTime="0:0:2.6" Value="-321">
<EasingDoubleKeyFrame.EasingFunction>
<PowerEase Power="1.3" EasingMode="EaseInOut"/>
</EasingDoubleKeyFrame.EasingFunction>
</EasingDoubleKeyFrame>
<EasingDoubleKeyFrame KeyTime="0:0:3" Value="-321"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</Path.Triggers>
</Path>
<Path Data="M50,27.5 C50,24.23333 45,24.23333 45,27.5 C45,30.83333 50,30.83333 50,27.5"
Fill="#77FFFFFF"
RenderTransformOrigin="0.5,0.83333">
<Path.RenderTransform>
<RotateTransform x:Name="_rot5" Angle="52"/>
</Path.RenderTransform>
<Path.Triggers>
<EventTrigger RoutedEvent="Path.Loaded">
<BeginStoryboard>
<Storyboard>
<DoubleAnimationUsingKeyFrames Storyboard.TargetName="_rot5"
Storyboard.TargetProperty="Angle"
RepeatBehavior="Forever">
<EasingDoubleKeyFrame KeyTime="0:0:0" Value="52"/>
<EasingDoubleKeyFrame KeyTime="0:0:0.8" Value="52"/>
<EasingDoubleKeyFrame KeyTime="0:0:2.8" Value="-308">
<EasingDoubleKeyFrame.EasingFunction>
<PowerEase Power="1.3" EasingMode="EaseInOut"/>
</EasingDoubleKeyFrame.EasingFunction>
</EasingDoubleKeyFrame>
<EasingDoubleKeyFrame KeyTime="0:0:3" Value="-308"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</Path.Triggers>
</Path>
</Canvas>
</Viewbox>
It's essentially the same Pathobject, a filled circle, used 5 times, at 5 different rotation angles and 5 different opacity values for the fill.
它本质上是同一个Path对象，一个实心圆，使用了 5 次，以 5 个不同的旋转角度和 5 个不同的填充不透明度值。
Doubtless, there is a more efficient way to do this, but this method shows the animation and timings, as well as the easing to give it more natural, less abrupt feel, when the circles spin around and stop.
毫无疑问，有一种更有效的方法可以做到这一点，但这种方法会显示动画和时间，以及在圆圈旋转和停止时赋予它更自然、更不突然的感觉的缓动。
回答by Anatoliy Nikolaev
Use ProgressRingfrom MahApps.Metro:
使用ProgressRing自MahApps.Metro：
The
ProgressRingcontrol is styled after a similar control in Windows 8 to indicate activity rather than a percentage of progress completed.
该
ProgressRing控件采用 Windows 8 中类似控件的样式，以指示活动而不是已完成的进度百分比。
Example:
例子：
<Controls:ProgressRing IsActive="True" />
To change the size of the rings, you need to set Widthand Height. Also, you can set a different color for each ring and set the size less than the established. To do this and get this Control without install full MahApps.Metropack, look at my previous answer:
要更改戒指的大小，您需要设置Width和Height。此外，您可以为每个戒指设置不同的颜色，并设置小于既定的尺寸。要做到这一点并在不安装完整MahApps.Metro包的情况下获得此控件，请查看我之前的答案：
