1. 运用StrokeDashOffset做守候提示动画
圆形的守候提示动画非常轻易做，只需让它扭转就可以了：
然则圆形之外的外形就不轻易做了，比方三角形，总不能让它纯真地扭转吧：
要处理这个题目可以运用StrokeDashOffset。StrokeDashOffset用于掌握虚线边框的第一个短线相对于Shape最先点的位移，运用动画掌握这个数值可以做出边框转动的结果：
<Page.Resources><Storyboard x:Name="ProgressStoryboard"><DoubleAnimationUsingKeyFrames EnableDependentAnimation="True" Storyboard.TargetProperty="(Shape.StrokeDashOffset)" Storyboard.TargetName="triangle"><EasingDoubleKeyFrame KeyTime="0:1:0" Value="-500" /></DoubleAnimationUsingKeyFrames></Storyboard></Page.Resources><Grid Background="#FFCCCCCC"><Grid Height="100" HorizontalAlignment="Center"><StackPanel Orientation="Horizontal" VerticalAlignment="Center"><TextBlock Text="L" FontSize="55" Margin="0,0,5,4" /><local:Triangle x:Name="triangle" Height="40" Width="40" StrokeThickness="2" Stroke="RoyalBlue" StrokeDashArray="4.045 4.045" StrokeDashOffset="0.05" StrokeDashCap="Round" /><TextBlock Text="ading..." FontSize="55" Margin="5,0,0,4" /></StackPanel></Grid></Grid>
须要注重的是Shape的边长要正好能被StrokeDashArray中短线和缺口的和整除，即 满足边长 / StrokeThickness % Sum( StrokeDashArray ) = 0，这是因为在StrokeDashOffset=0的处所会截断短线，以下图所示：
别的注重的是边长的盘算，如Rectangle，边长并非(Height + Width) * 2，而是(Height - StrokeThickness) * 2 + (Width- StrokeThickness) * 2，以下图所示，边长应当从边框正中间最先盘算：
有一些Shape的边长盘算还会遭到Stretch影响，如上一篇中自定义的Triangle：
<StackPanel Orientation="Horizontal" HorizontalAlignment="Center"><Grid Height="50" Width="50"><local:Triangle Stretch="Fill" StrokeThickness="5" Stroke="RoyalBlue" /></Grid><Grid Height="50" Width="50" Margin="10,0,0,0"><local:Triangle Stretch="None" StrokeThickness="5" Stroke="RoyalBlue" /></Grid></StackPanel>
2. 运用StrokeDashArray做进度提示动画
StrokeDashArray用于将Shape的边框变成虚线，StrokeDashArray的值是一个double范例的有序鸠合，内里的数值指定虚线中每一段以StrokeThickness为单元的长度。用StrokeDashArray做进度提示的基础做法就是将进度Progress经由过程Converter转换为分红两段的StrokeDashArray，第一段为实线，示意当前进度，第二段为空缺。假定一个Shape的边长是100，当前进度为50，则将StrokeDashArray设置成{50，double.MaxValue}两段。
做成动画以下图所示：
<Page.Resources><Style TargetType="TextBlock"><Setter Property="FontSize"
Value="12" /></Style><local:ProgressToStrokeDashArrayConverter x:Key="ProgressToStrokeDashArrayConverter"
TargetPath="{Binding ElementName=Triangle}" /><local:ProgressToStrokeDashArrayConverter2 x:Key="ProgressToStrokeDashArrayConverter2"
TargetPath="{Binding ElementName=Triangle}" />
<toolkit:StringFormatConverter x:Key="StringFormatConverter" /><local:ProgressWrapper x:Name="ProgressWrapper" /><Storyboard x:Name="Storyboard1"><DoubleAnimation Duration="0:0:5"
To="100"
Storyboard.TargetProperty="Progress"
Storyboard.TargetName="ProgressWrapper"
EnableDependentAnimation="True" /></Storyboard></Page.Resources><Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"><Viewbox Height="150"><StackPanel Orientation="Horizontal"><Grid><local:Triangle Height="40"
Width="40"
StrokeThickness="2"
Stroke="DarkGray" /><local:Triangle x:Name="Triangle"
Height="40"
Width="40"
StrokeThickness="2"
Stroke="RoyalBlue"
StrokeDashArray="{Binding Progress,Source={StaticResource ProgressWrapper},Converter={StaticResource ProgressToStrokeDashArrayConverter}}" /><TextBlock Text="{Binding Progress,Source={StaticResource ProgressWrapper},Converter={StaticResource StringFormatConverter},ConverterParameter='{}{0:0}'}"
HorizontalAlignment="Center"
VerticalAlignment="Center"
Margin="0,15,0,0" /></Grid><Grid Margin="20,0,0,0"><local:Triangle Height="40"
Width="40"
StrokeThickness="2"
Stroke="DarkGray" /><local:Triangle x:Name="Triangle2"
Height="40"
Width="40"
StrokeThickness="2"
Stroke="RoyalBlue"
StrokeDashArray="{Binding Progress,Source={StaticResource ProgressWrapper},Converter={StaticResource ProgressToStrokeDashArrayConverter2}}" /><TextBlock Text="{Binding Progress,Source={StaticResource ProgressWrapper},Converter={StaticResource StringFormatConverter},ConverterParameter='{}{0:0}'}"
HorizontalAlignment="Center"
VerticalAlignment="Center"
Margin="0,15,0,0" /></Grid></StackPanel></Viewbox></Grid>
个中ProgressToStrokeDashArrayConverter和ProgressToStrokeDashArrayConverter2的代码以下：
public class ProgressToStrokeDashArrayConverter : DependencyObject, IValueConverter
{/// <summary>/// 猎取或设置TargetPath的值/// </summary> public Path TargetPath
{
get { return (Path)GetValue(TargetPathProperty);
}
set {
SetValue(TargetPathProperty, value);
}
}/// <summary>/// 标识 TargetPath 依靠属性。///
</summary>public static readonly DependencyProperty TargetPathProperty =
DependencyProperty.Register("TargetPath", typeof(Path), typeof(ProgressToStrokeDashArrayConverter), new PropertyMetadata(null));public virtual object Convert(object value, Type targetType, object parameter, string language)
{
if (value is double == false)return null;
var progress = (double)value;if (TargetPath == null)return null;var totalLength = GetTotalLength();
var firstSection = progress * totalLength / 100 / TargetPath.StrokeThickness;if (progress == 100)
firstSection = Math.Ceiling(firstSection);var result = new DoubleCollection {
firstSection, double.MaxValue };return result;
}public object ConvertBack(object value, Type targetType, object parameter, string language)
{throw new NotImplementedException();
}protected double GetTotalLength()
{var geometry = TargetPath.Data as PathGeometry;
if (geometry == null)
return 0;
if (geometry.Figures.Any() == false)return 0;
var figure = geometry.Figures.FirstOrDefault();
if (figure == null)
return 0;
var totalLength = 0d;
var point = figure.StartPoint;
foreach (var item in figure.Segments)
{
var segment = item as LineSegment;
if (segment == null)
return 0;
totalLength += Math.Sqrt(Math.Pow(point.X - segment.Point.X, 2) + Math.Pow(point.Y - segment.Point.Y, 2));
point = segment.Point;
}
totalLength += Math.Sqrt(Math.Pow(point.X - figure.StartPoint.X, 2) + Math.Pow(point.Y - figure.StartPoint.Y, 2));
return totalLength;
}
}
public class ProgressToStrokeDashArrayConverter2 : ProgressToStrokeDashArrayConverter
{
public override object Convert(object value, Type targetType, object parameter, string language)
{
if (value is double == false)return null;
var progress = (double)value;
if (TargetPath == null)
return null;
var totalLength = GetTotalLength();
totalLength = totalLength / TargetPath.StrokeThickness;
var thirdSection = progress * totalLength / 100;
if (progress == 100)
thirdSection = Math.Ceiling(thirdSection);
var secondSection = (totalLength - thirdSection) / 2;
var result = new DoubleCollection { 0, secondSection, thirdSection, double.MaxValue };
return result;
}
}
因为代码只是用于演示，protected double GetTotalLength()写得比较迁就。可以看到这两个Converter继续自DependencyObject，这是因为这里须要经由过程绑定为TargetPath赋值。
这里另有另一个类ProgressWrapper：
public class ProgressWrapper : DependencyObject
{/// <summary>/// 猎取或设置Progress的值/// </summary> public double Progress
{get { return (double)GetValue(ProgressProperty); }set { SetValue(ProgressProperty, value); }
}/// <summary>/// 标识 Progress 依靠属性。///
</summary>public static readonly DependencyProperty ProgressProperty =
DependencyProperty.Register("Progress", typeof(double), typeof(ProgressWrapper), new PropertyMetadata(0d));
}
因为这里没有可供Storyboard操纵的double属性，所以用这个类充任Storyboard和StrokeDashArray的桥梁。UWPCommunityToolkit中也有一个差不多用法的类BindableValueHolder，这个类通用性比较强，可以参考它的用法。
3. 运用Behavior革新进度提示动画代码
只是做个动画罢了，又是Converter，又是Wrapper，又是Binding，看起来非常复杂，假如Shape上面有Progress属性就轻易多了。这时候起首会斟酌附加属性，在XAML用法以下：
<UserControl.Resources> <Storyboard x:Name="Storyboard1"><DoubleAnimation Duration="0:0:5" To="100" Storyboard.TargetProperty="(local:PathExtention.Progress)" Storyboard.TargetName="Triangle" /> </Storyboard></UserControl.Resources><Grid x:Name="LayoutRoot" Background="White"><local:Triangle x:Name="Triangle" Height="40" local:PathExtention.Progress="0" Width="40" StrokeThickness="2" Stroke="RoyalBlue" ></local:Triangle></Grid>
但实在这是行不通的，XAML有一个存在了良久的限定：However, an existing limitation of the Windows Runtime XAML implementation is that you cannot animate a custom attached property.。这个限定决议了XAML不能对自定义附加属性做动画。不过，这个限定只限定了不能对自定义附加属性自身做动画，但对附加属性中的类的属性则可以，比方以下这类写法应当是行得通的：
<UserControl.Resources> <Storyboard x:Name="Storyboard1"><DoubleAnimation Duration="0:0:5" To="100" Storyboard.TargetProperty="(local:PathExtention.Progress)" Storyboard.TargetName="TrianglePathExtention" /> </Storyboard></UserControl.Resources><Grid x:Name="LayoutRoot" Background="White"><local:Triangle x:Name="Triangle" Height="40" Width="40" StrokeThickness="2" Stroke="RoyalBlue" > <local:PathHelper><local:PathExtention x:Name="TrianglePathExtention" Progress="0" /> </local:PathHelper></local:Triangle></Grid>
更文雅的写法是应用XamlBehaviors，这篇文章很好地诠释了XamlBehaviors的作用：
XAML Behaviors非常重要，因为它们供应了一种要领，让开发人员可以以一种简约、可反复的体式格局轻松地向UI对象增添功用。 他们无需建立控件的子类或反复编写逻辑代码，只需简朴地增添一个XAML代码片断。
要运用Behavior革新现有代码，只需完成一个PathProgressBehavior：
public class PathProgressBehavior : Behavior<UIElement>
{protected override void OnAttached()
{base.OnAttached();UpdateStrokeDashArray();
}/// <summary>/// 猎取或设置Progress的值/// </summary> public double Progress
{get { return (double)GetValue(ProgressProperty); }set { SetValue(ProgressProperty, value); }
}/*Progress DependencyProperty*/protected virtual void OnProgressChanged(double oldValue, double newValue)
{UpdateStrokeDashArray();
}protected virtual double GetTotalLength(Path path)
{/*some code*/}private void UpdateStrokeDashArray()
{
var target = AssociatedObject as Path;if (target == null)return;double progress = Progress;
//if (target.ActualHeight == 0 || target.ActualWidth == 0)//
return;
if (target.StrokeThickness == 0)
return;
var totalLength = GetTotalLength(target);
var firstSection = progress * totalLength / 100 / target.StrokeThickness;
if (progress == 100)
firstSection = Math.Ceiling(firstSection);
var result = new DoubleCollection {
firstSection, double.MaxValue
};
target.StrokeDashArray = result;
}
}
XAML中以下运用：
<UserControl.Resources> <Storyboard x:Name="Storyboard1"><DoubleAnimation Duration="0:0:5" To="100" Storyboard.TargetProperty="Progress" Storyboard.TargetName="PathProgressBehavior" EnableDependentAnimation="True"/> </Storyboard></UserControl.Resources><Grid x:Name="LayoutRoot" Background="White"> <local:Triangle x:Name="Triangle" Height="40" local:PathExtention.Progress="0" Width="40" StrokeThickness="2" Stroke="RoyalBlue" ><interactivity:Interaction.Behaviors> <local:PathProgressBehavior x:Name="PathProgressBehavior" /></interactivity:Interaction.Behaviors> </local:Triangle></Grid>
如许看起来就清新多了。
4. 模拟背景添补动画
先看看结果：
实在这篇文章里并不会议论添补动画，不过起首声明做添补动画会更轻易快捷，这一段只是深切进修过程当中的产品，实用价值不高。
上图三角形的添补的结果只须要叠加两个一样大小的Shape，前面谁人设置Stretch="Uniform"，再经由过程DoubleAnimation转变它的高度就可以了。笔墨也是雷同的道理，叠加两个雷同的TextBlock，将前面谁人放在一个无边框的ScrollViewer里再去转变ScrollViewer的高度。
<Page.Resources><Style TargetType="TextBlock"><Setter Property="FontSize"
Value="12" /></Style><local:ProgressToHeightConverter x:Key="ProgressToHeightConverter"
TargetContentControl="{Binding ElementName=ContentControl}" /><local:ReverseProgressToHeightConverter x:Key="ReverseProgressToHeightConverter"
TargetContentControl="{Binding ElementName=ContentControl2}" /><toolkit:StringFormatConverter x:Key="StringFormatConverter" /><local:ProgressWrapper x:Name="ProgressWrapper" /><Storyboard x:Name="Storyboard1"><DoubleAnimation Duration="0:0:5"
To="100"
Storyboard.TargetProperty="Progress"
Storyboard.TargetName="ProgressWrapper"
EnableDependentAnimation="True" /></Storyboard></Page.Resources><Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"><Grid><local:Triangle Height="40"
Width="40"
StrokeThickness="2"
Fill="LightGray" /><local:Triangle Height="40"
Width="40"
Stretch="Fill"
StrokeThickness="2"
Stroke="RoyalBlue" /><ContentControl x:Name="ContentControl"
VerticalAlignment="Bottom"
HorizontalAlignment="Center"
Height="{Binding Progress,Source={StaticResource ProgressWrapper},Converter={StaticResource ProgressToHeightConverter}}"><local:Triangle x:Name="Triangle3" Height="40"
Width="40"
StrokeThickness="2"
Fill="RoyalBlue"
Stretch="Uniform"
VerticalAlignment="Bottom" /></ContentControl><TextBlock Text="{Binding Progress,Source={StaticResource ProgressWrapper},Converter={StaticResource StringFormatConverter},ConverterParameter='{}{0:0}'}"
HorizontalAlignment="Center"
VerticalAlignment="Center"
Margin="0,12,0,0"
Foreground="White" /><ContentControl x:Name="ContentControl2"
Height="{Binding Progress,Source={StaticResource ProgressWrapper},Converter={StaticResource ReverseProgressToHeightConverter}}"
VerticalAlignment="Top"
HorizontalAlignment="Center"><ScrollViewer BorderThickness="0"
Padding="0,0,0,0"
VerticalScrollBarVisibility="Disabled"
HorizontalScrollBarVisibility="Disabled"
VerticalAlignment="Top"
Height="40"><Grid Height="40"><TextBlock Text="{Binding Progress,Source={StaticResource ProgressWrapper},Converter={StaticResource StringFormatConverter},ConverterParameter='{}{0:0}'}"
HorizontalAlignment="Center"
VerticalAlignment="Center"
Margin="0,12,0,0" /></Grid></ScrollViewer></ContentControl></Grid></Grid>
ProgressToHeightConverter和ReverseProgressToHeightConverter的代码以下：
public class ProgressToHeightConverter : DependencyObject, IValueConverter
{/// <summary>/// 猎取或设置TargetContentControl的值/// </summary> public ContentControl TargetContentControl
{
get {
return (ContentControl)GetValue(TargetContentControlProperty);
}
set {
SetValue(TargetContentControlProperty, value);
}
}/// <summary>/// 标识 TargetContentControl 依靠属性。///
</summary>public static readonly DependencyProperty TargetContentControlProperty =
DependencyProperty.Register("TargetContentControl", typeof(ContentControl), typeof(ProgressToHeightConverter), new PropertyMetadata(null));
public object Convert(object value, Type targetType, object parameter, string language)
{
if (value is double == false)
return 0d;
var progress = (double)value;
if (TargetContentControl == null)
return 0d;
var element = TargetContentControl.Content as FrameworkElement;
if (element == null)
return 0d;return element.Height * progress / 100;
}public object ConvertBack(object value, Type targetType, object parameter, string language)
{throw new NotImplementedException();
}
}public class ReverseProgressToHeightConverter : DependencyObject, IValueConverter
{/// <summary>/// 猎取或设置TargetContentControl的值/// </summary>
public ContentControl TargetContentControl
{
get {
return (ContentControl)GetValue(TargetContentControlProperty);
}
set {
SetValue(TargetContentControlProperty, value);
}
}/// <summary>/// 标识 TargetContentControl 依靠属性。///
</summary>public static readonly DependencyProperty TargetContentControlProperty =
DependencyProperty.Register("TargetContentControl", typeof(ContentControl), typeof(ReverseProgressToHeightConverter), new PropertyMetadata(null));
public object Convert(object value, Type targetType, object parameter, string language)
{
if (value is double == false)
return double.NaN;
var progress = (double)value;if (TargetContentControl == null)return double.NaN;
var element = TargetContentControl.Content as FrameworkElement;
if (element == null)return double.NaN;
return element.Height * (100 - progress) / 100;
}
public object ConvertBack(object value, Type targetType, object parameter, string language)
{
throw new NotImplementedException();
}
}
再提示一次，实际上老老实实做添补动画彷佛更轻易些。
5. 将动画应用到Button的ControlTemplate
一样的手艺，合营ControlTemplate可以制造很风趣的按钮：
PointerEntered时，按钮的边框从进入点向反方向延长。PointerExited时，边框从反方向向移出点消弱。要做到这点须要在PointerEntered时转变边框的方向，运用了ChangeAngleToEnterPointerBehavior：
public class ChangeAngleToEnterPointerBehavior : Behavior<Ellipse>
{protected override void OnAttached()
{base.OnAttached();
AssociatedObject.PointerEntered += OnAssociatedObjectPointerEntered;
AssociatedObject.PointerExited += OnAssociatedObjectPointerExited;
}protected override void OnDetaching()
{base.OnDetaching();
AssociatedObject.PointerEntered -= OnAssociatedObjectPointerEntered;
AssociatedObject.PointerExited -= OnAssociatedObjectPointerExited;
}private void OnAssociatedObjectPointerExited(object sender, PointerRoutedEventArgs e)
{UpdateAngle(e);
}private void OnAssociatedObjectPointerEntered(object sender, PointerRoutedEventArgs e)
{UpdateAngle(e);
}private void UpdateAngle(PointerRoutedEventArgs e)
{if (AssociatedObject == null || AssociatedObject.StrokeThickness == 0)return;
AssociatedObject.RenderTransformOrigin = new Point(0.5, 0.5);var rotateTransform = AssociatedObject.RenderTransform as RotateTransform;if (rotateTransform == null)
{
rotateTransform = new RotateTransform();
AssociatedObject.RenderTransform = rotateTransform;
}var point = e.GetCurrentPoint(AssociatedObject.Parent as UIElement).Position;var centerPoint = new Point(AssociatedObject.ActualWidth / 2, AssociatedObject.ActualHeight / 2);var angleOfLine = Math.Atan2(point.Y - centerPoint.Y, point.X - centerPoint.X) * 180 / Math.PI;
rotateTransform.Angle = angleOfLine + 180;
}
}
这个类定名不是很好，不过迁就一下吧。
为了做出边框延长的结果，别的须要一个类EllipseProgressBehavior：
public class EllipseProgressBehavior : Behavior<Ellipse>
{/// <summary>/// 猎取或设置Progress的值/// </summary>
public double Progress
{
get {
return (double)GetValue(ProgressProperty);
}
set {
SetValue(ProgressProperty, value);
}
}/// <summary>/// 标识 Progress 依靠属性。/// </summary>
public static readonly DependencyProperty ProgressProperty =
DependencyProperty.Register("Progress", typeof(double), typeof(EllipseProgressBehavior), new PropertyMetadata(0d, OnProgressChanged));
private static void OnProgressChanged(DependencyObject obj, DependencyPropertyChangedEventArgs args)
{
var target = obj as EllipseProgressBehavior;
double oldValue = (double)args.OldValue;
double newValue = (double)args.NewValue;if (oldValue != newValue)
target.OnProgressChanged(oldValue, newValue);
}
protected virtual void OnProgressChanged(double oldValue, double newValue)
{UpdateStrokeDashArray();
}protected virtual double GetTotalLength()
{if (AssociatedObject == null)return 0;
return (AssociatedObject.ActualHeight - AssociatedObject.StrokeThickness) * Math.PI;
}private void UpdateStrokeDashArray()
{if (AssociatedObject == null || AssociatedObject.StrokeThickness == 0)
return;
//if (target.ActualHeight == 0 || target.ActualWidth == 0)//
return;var totalLength = GetTotalLength();
totalLength = totalLength / AssociatedObject.StrokeThickness;
var thirdSection = Progress * totalLength / 100;
var secondSection = (totalLength - thirdSection) / 2;
var result = new DoubleCollection { 0, secondSection, thirdSection, double.MaxValue };
AssociatedObject.StrokeDashArray = result;
}
}
套用到ControlTemplate以下：
<ControlTemplate TargetType="Button"><Grid x:Name="RootGrid"><VisualStateManager.VisualStateGroups><VisualStateGroup x:Name="CommonStates"><VisualStateGroup.Transitions><VisualTransition GeneratedDuration="0:0:1"
To="Normal"><Storyboard><DoubleAnimationUsingKeyFrames EnableDependentAnimation="True"
Storyboard.TargetProperty="(local:EllipseProgressBehavior.Progress)"
Storyboard.TargetName="EllipseProgressBehavior"><EasingDoubleKeyFrame KeyTime="0:0:1"
Value="0"><EasingDoubleKeyFrame.EasingFunction><QuinticEase EasingMode="EaseOut" /></EasingDoubleKeyFrame.EasingFunction></EasingDoubleKeyFrame></DoubleAnimationUsingKeyFrames></Storyboard></VisualTransition><VisualTransition GeneratedDuration="0:0:1"
To="PointerOver"><Storyboard><DoubleAnimationUsingKeyFrames EnableDependentAnimation="True"
Storyboard.TargetProperty="(local:EllipseProgressBehavior.Progress)"
Storyboard.TargetName="EllipseProgressBehavior"><EasingDoubleKeyFrame KeyTime="0:0:1"
Value="100"><EasingDoubleKeyFrame.EasingFunction><QuinticEase EasingMode="EaseOut" /></EasingDoubleKeyFrame.EasingFunction></EasingDoubleKeyFrame></DoubleAnimationUsingKeyFrames></Storyboard></VisualTransition></VisualStateGroup.Transitions><VisualState x:Name="Normal"><Storyboard><PointerUpThemeAnimation Storyboard.TargetName="RootGrid" /></Storyboard></VisualState><VisualState x:Name="PointerOver"><Storyboard><PointerUpThemeAnimation Storyboard.TargetName="RootGrid" /></Storyboard><VisualState.Setters><Setter Target="EllipseProgressBehavior.(local:EllipseProgressBehavior.Progress)"
Value="100" /></VisualState.Setters></VisualState><VisualState x:Name="Pressed"><Storyboard><PointerDownThemeAnimation Storyboard.TargetName="RootGrid" /></Storyboard></VisualState><VisualState x:Name="Disabled" /></VisualStateGroup></VisualStateManager.VisualStateGroups><ContentPresenter x:Name="ContentPresenter"
AutomationProperties.AccessibilityView="Raw"
ContentTemplate="{TemplateBinding ContentTemplate}"
ContentTransitions="{TemplateBinding ContentTransitions}"
Content="{TemplateBinding Content}"
HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"
Padding="{TemplateBinding Padding}"
VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}" /><Ellipse Fill="Transparent" Stroke="{TemplateBinding BorderBrush}" StrokeThickness="2"><interactivity:Interaction.Behaviors><local:ChangeAngleToEnterPointerBehavior /><local:EllipseProgressBehavior x:Name="EllipseProgressBehavior" /></interactivity:Interaction.Behaviors></Ellipse></Grid></ControlTemplate>
注重：我没有勉励任何人自定义按钮表面的意义，能用体系自带的动画或款式就只管用体系自带的，没有设计师的情况下 又想UI做得异乎寻常一般会做得很丢脸。想要UI悦目，合理的规划、合理的色彩、合理的图片就足够了。
6. 结语
在进修Shape的过程当中以为好玩就做了许多尝试，因为之前工作中做过不少守候、进度的动画，所以此次就试着做出本文的动画。
XAML的传统动画并没有供应太多功用，主如果ColorAnimation、DoubleAnimation、PointAnimation三种，不过靠Binding和Converter可以填补这方面的不足，完成许多须要的功用。
本文的一些动画结果参考了SVG的动画。话说回来，Windows 10 1703新增了SvgImageSource，不过看起来只是简朴地将SVG翻译成对应的Shape，然后用Shape显现，不少高等特征都不支撑（以下图暗影的滤镜），用法以下：
<Image><Image.Source><SvgImageSource UriSource="feoffset_1.svg" /></Image.Source></Image>
SvgImageSource：
底本的Svg：
以上就是用Shape做动画实例代码的细致内容，更多请关注ki4网别的相干文章！
