稳扎稳打Silverlight(11) - 2.0动画之ColorAnimation, DoubleAnimation, PointAnimation, 内插关键帧动画

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稳扎稳打Silverlight(11) - 2.0动画之ColorAnimation,DoubleAnimation,PointAnimation,内插关键帧动画

作者： webabcd


介绍
Silverlight 2.0 动画：
    ColorAnimation - 在两个 Color 值之间做线性内插动画处理
    DoubleAnimation - 在两个 Double 值之间做线性内插动画处理
    PointAnimation - 在两个 Point 值之间做线性内插动画处理
    内插关键帧动画 - 在 Color 或 Double 或 Point 动画中内插关键帧，以做线性, 离散,三次贝塞尔曲线的动画处理
    动态改变动画 - 通过程序控制，动态地改变动画


在线DEMO
http://www.cnblogs.com/webabcd/archive/2008/10/09/1307486.html


示例
1、ColorAnimation.xaml

< UserControl  x:Class ="Silverlight20.Animation.ColorAnimation"

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

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

     < StackPanel  HorizontalAlignment ="Left" >

         < Ellipse  x:Name ="ellipse"  Fill ="Red"  Width ="200"  Height ="100" >

             < Ellipse.Triggers >

            

                 <!--

                RoutedEvent - 所属对象的路由事件，仅有Loaded这个事件

                 -->

                 < EventTrigger  RoutedEvent ="Ellipse.Loaded" >

                     < BeginStoryboard  x:Name ="beginStoryboard" >

                         < Storyboard  x:Name ="storyboard" >

                        

                             <!-- ColorAnimation - 在两个 Color 值之间做线性内插动画处理 -->

                             <!--

                            Storyboard.TargetName - 要进行动画处理的对象的名称

                            Storyboard.TargetProperty - 要进行动画处理的对象的属性

                            BeginTime - 时间线在被触发 BeginTime 的时间后才能开始播放

                                TimeSpan - [-][日.]时:分:秒[.1位到7为的秒后的小数]（可为正；可为负；可为空；默认值为 0）

                            From - 动画的起始值

                            To - 动画的结束值

                            By - 动画从起始值开始计算，所需变化的总量（To 优先于 By）

                            Duration - 时间线的持续时间

                                TimeSpan - [-][日.]时:分:秒[.1位到7为的秒后的小数]

                                Automatic - 自动确定

                                Forever - 无限长

                            AutoReverse - 动画完成后是否要原路返回。默认值为 false

                            RepeatBehavior - 动画重复播放的时间、次数或类型

                                TimeSpan - [-][日.]时:分:秒[.1位到7为的秒后的小数]

                                nx - 播放次数。1x, 2x, 3x 

                                Forever - 永久播放

                            Speedratio - 时间线的速率的倍数。默认值 1

                            FillBehavior - 动画结束后的行为 [System.Windows.Media.Animation.FillBehavior枚举]

                                FillBehavior.HoldEnd - 动画结束后，保留动画属性的结束值。默认值

                                FillBehavior.Stop - 动画结束后，恢复动画属性为其初始值

                             -->

                             < ColorAnimation 

                                 Storyboard.TargetName ="ellipse"  

                                Storyboard.TargetProperty ="(Ellipse.Fill).(SolidColorBrush.Color)"  

                                BeginTime ="00:00:0"  

                                From ="Red"  

                                To ="Yellow"  

                                Duration ="Automatic"  

                                AutoReverse ="True"  

                                RepeatBehavior ="3x" >

                             </ ColorAnimation >

                         </ Storyboard >

                     </ BeginStoryboard >

                 </ EventTrigger >

             </ Ellipse.Triggers >

         </ Ellipse >

     </ StackPanel >

</ UserControl >

2、DoubleAnimation.xaml

< UserControl  x:Class ="Silverlight20.Animation.DoubleAnimation"

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

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

     < StackPanel  HorizontalAlignment ="Left" >

    

         < Rectangle  x:Name ="rectangle"  Width ="200"  Height ="100"  stroke ="Black"  strokeThickness ="6"  RadiusX ="25"  RadiusY ="25" >

             < Rectangle.Fill >

                 < ImageBrush  ImageSource ="/Silverlight20;component/Images/logo.jpg"  Stretch ="Fill"   />

             </ Rectangle.Fill >

         </ Rectangle >

        

         < StackPanel.Resources >

             < BeginStoryboard  x:Name ="beginStoryboard" >

                 < Storyboard  x:Name ="storyboard" >

                     <!-- DoubleAnimation - 在两个 Double 值之间做线性内插动画处理 -->

                     <!--

                    Storyboard.TargetName - 要进行动画处理的对象的名称

                    Storyboard.TargetProperty - 要进行动画处理的对象的属性

                    BeginTime - 时间线在被触发 BeginTime 的时间后才能开始播放

                        TimeSpan - [-][日.]时:分:秒[.1位到7为的秒后的小数]（可为正；可为负；可为空；默认值为 0）

                    From - 动画的起始值

                    To - 动画的结束值

                    By - 动画从起始值开始计算，所需变化的总量（To 优先于 By）

                    Duration - 时间线的持续时间

                        TimeSpan - [-][日.]时:分:秒[.1位到7为的秒后的小数]

                        Automatic - 自动确定

                        Forever - 无限长

                    AutoReverse - 动画完成后是否要原路返回。默认值为 false

                    RepeatBehavior - 动画重复播放的时间、次数或类型

                        TimeSpan - [-][日.]时:分:秒[.1位到7为的秒后的小数]

                        nx - 播放次数。1x, 3x 

                        Forever - 永久播放

                    Speedratio - 时间线的速率的倍数。默认值 1

                    FillBehavior - 动画结束后的行为 [System.Windows.Media.Animation.FillBehavior枚举]

                        FillBehavior.HoldEnd - 动画结束后，保留动画属性的结束值。默认值

                        FillBehavior.Stop - 动画结束后，恢复动画属性为其初始值

                     -->

                     < DoubleAnimation 

                         Storyboard.TargetName ="rectangle"  

                        Storyboard.TargetProperty ="Width"

                        From ="100"

                        By ="100"

                        BeginTime ="0:0:3"

                        Duration ="00:00:03"

                        AutoReverse ="False"

                        RepeatBehavior ="Forever" >

                     </ DoubleAnimation >

                 </ Storyboard >

             </ BeginStoryboard >

         </ StackPanel.Resources >

        

     </ StackPanel >

</ UserControl >

3、PointAnimation.xaml

< UserControl  x:Class ="Silverlight20.Animation.PointAnimation"

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

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

     < StackPanel  HorizontalAlignment ="Left" >

    

         < StackPanel  Orientation ="Horizontal" >

             < Button  Click ="Animation_Begin"  Width ="65"  Height ="30"  Margin ="2"  Content ="Begin"   />

             < Button  Click ="Animation_Pause"  Width ="65"  Height ="30"  Margin ="2"  Content ="Pause"   />

             < Button  Click ="Animation_Resume"  Width ="65"  Height ="30"  Margin ="2"  Content ="Resume"   />

             < Button  Click ="Animation_Stop"  Width ="65"  Height ="30"  Margin ="2"  Content ="Stop"   />

            

         </ StackPanel >

    

         < Path  Fill ="Red" >

             < Path.Data >

                 < EllipseGeometry  x:Name ="ellipseGeometry"  Center ="50,50"  RadiusX ="15"  RadiusY ="15"   />

             </ Path.Data >

         </ Path >

        

         < StackPanel.Resources >

             < Storyboard  x:Name ="storyboard" >

                 <!-- PointAnimation - 在两个 Point 值之间做线性内插动画处理 -->

                 <!--

                Storyboard.TargetName - 要进行动画处理的对象的名称

                Storyboard.TargetProperty - 要进行动画处理的对象的属性

                BeginTime - 时间线在被触发 BeginTime 的时间后才能开始播放

                    TimeSpan - [-][日.]时:分:秒[.1位到7为的秒后的小数]（可为正；可为负；可为空；默认值为 0）

                From - 动画的起始值

                To - 动画的结束值

                By - 动画从起始值开始计算，所需变化的总量（To 优先于 By）

                Duration - 时间线的持续时间

                    TimeSpan - [-][日.]时:分:秒[.1位到7为的秒后的小数]

                    Automatic - 自动确定

                    Forever - 无限长

                AutoReverse - 动画完成后是否要原路返回。默认值为 false

                RepeatBehavior - 动画重复播放的时间、次数或类型

                    TimeSpan - [-][日.]时:分:秒[.1位到7为的秒后的小数]

                    nx - 播放次数。1x, 3x 

                    Forever - 永久播放

                Speedratio - 时间线的速率的倍数。默认值 1

                FillBehavior - 动画结束后的行为 [System.Windows.Media.Animation.FillBehavior枚举]

                    FillBehavior.HoldEnd - 动画结束后，保留动画属性的结束值。默认值

                    FillBehavior.Stop - 动画结束后，恢复动画属性为其初始值

                 -->

                 < PointAnimation

                     Storyboard.TargetName ="ellipseGeometry"

                    Storyboard.TargetProperty ="Center"

                    BeginTime ="00:00:00"

                    From ="50,50"

                    To ="300,500"

                    Duration ="0:0:3"

                    AutoReverse ="True"

                    RepeatBehavior ="00:00:10" >

                 </ PointAnimation >

             </ Storyboard >

         </ StackPanel.Resources >

        

     </ StackPanel >

</ UserControl >

PointAnimation.xaml.cs

using  System;

using  System.Collections.Generic;

using  System.Linq;

using  System.Net;

using  System.Windows;

using  System.Windows.Controls;

using  System.Windows.Documents;

using  System.Windows.Input;

using  System.Windows.Media;

using  System.Windows.Media.Animation;

using  System.Windows.Shapes;

namespace  Silverlight20.Animation

{

    public partial class PointAnimation : UserControl

    

{

        public PointAnimation()

        

{

            InitializeComponent();

        }

        private void Animation_Begin(object sender, RoutedEventArgs e)

        

{

            // 播放

            storyboard.Begin();

        }

        private void Animation_Pause(object sender, RoutedEventArgs e)

        

{

            // 暂停

            storyboard.Pause();

        }

        private void Animation_Resume(object sender, RoutedEventArgs e)

        

{

            // 继续

            storyboard.Resume();

        }

        private void Animation_Stop(object sender, RoutedEventArgs e)

        

{

            // 停止

            storyboard.Stop();

        }

    }

}

4、KeyFrame.xaml

< UserControl  x:Class ="Silverlight20.Animation.KeyFrame"

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

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

     < StackPanel  HorizontalAlignment ="Left" >

    

         <!--

        ColorAnimationUsingKeyFrames - 在一组 KeyFrame 中所设置的多个 Color 值之间做动画处理

        DoubleAnimationUsingKeyFrames - 在一组 KeyFrame 中所设置的多个 Double 值之间做动画处理

        PointAnimationUsingKeyFrames - 在一组 KeyFrame 中所设置的多个 Point 值之间做动画处理

         -->

        

         <!--

        LinearColorKeyFrame - 在前一个关键帧的 Color 值及其自己的 Value 之间进行线性内插动画处理

        discreteColorKeyFrame - 在前一个关键帧的 Color 值及其自己的 Value 之间进行离散内插动画处理

        SplineColorKeyFrame - 在前一个关键帧的 Color 值及其自己的 Value 之间按 三次贝塞尔曲线 进行内插动画处理

        

        LinearDoubleKeyFrame - 在前一个关键帧的 Double 值及其自己的 Value 之间进行线性内插动画处理

        discreteDoubleKeyFrame - 在前一个关键帧的 Double 值及其自己的 Value 之间进行离散内插动画处理

        SplineDoubleKeyFrame - 在前一个关键帧的 Double 值及其自己的 Value 之间按 三次贝塞尔曲线 进行内插动画处理

        

        LinearPointKeyFrame - 在前一个关键帧的 Point 值及其自己的 Value 之间进行线性内插动画处理

        discretePointKeyFrame - 在前一个关键帧的 Point 值及其自己的 Value 之间进行离散内插动画处理

        SplinePointKeyFrame - 在前一个关键帧的 Point 值及其自己的 Value 之间按 三次贝塞尔曲线 进行内插动画处理

         -->

        

         <!--

        Value - 关键帧的目标值

        KeyTime - 到达关键帧目标值的时间

        KeySpline - 三次贝塞尔曲线的两个控制点：x1,y1 x2,y2（该三次贝塞尔曲线的起点为0,0，终点为1,1）

         -->

    

         < Grid  Margin ="5"   >

             < Grid.Resources >

                 < Storyboard  x:Name ="caStoryboard" >

                     < ColorAnimationUsingKeyFrames

                         Storyboard.TargetName ="caBrush"

                        Storyboard.TargetProperty ="Color"

                        Duration ="0:0:10"

                     >

                         < LinearColorKeyFrame  Value ="Green"  KeyTime ="0:0:3"   />

                         < discreteColorKeyFrame  Value ="Blue"  KeyTime ="0:0:4"   />

                         < SplineColorKeyFrame  Value ="Red"  KeySpline ="0.6,0.0 0.9,0.00"  KeyTime ="0:0:6"   />

                     </ ColorAnimationUsingKeyFrames >

                 </ Storyboard >

             </ Grid.Resources >

             < Rectangle  x:Name ="caRectangle"  MouseLeftButtonDown ="caRectangle_MouseLeftButtonDown"  Width ="100"  Height ="50" >

                 < Rectangle.Fill >

                     < SolidColorBrush  x:Name ="caBrush"  Color ="Red"   />

                 </ Rectangle.Fill >

             </ Rectangle >

         </ Grid >

         < Grid  Margin ="5"   >

             < Grid.Resources >

                 < Storyboard  x:Name ="daStoryboard" >

                     < DoubleAnimationUsingKeyFrames

                         Storyboard.TargetName ="daTransform"

                        Storyboard.TargetProperty ="X"

                        Duration ="0:0:10"

                     >

                         < LinearDoubleKeyFrame  Value ="500"  KeyTime ="0:0:3"   />

                         < discreteDoubleKeyFrame  Value ="400"  KeyTime ="0:0:4"   />

                         < SplineDoubleKeyFrame  Value ="0"  KeySpline ="0.6,0.00"  KeyTime ="0:0:6"   />

                     </ DoubleAnimationUsingKeyFrames >

                 </ Storyboard >

             </ Grid.Resources >

             < Rectangle  x:Name ="daRectangle"  MouseLeftButtonDown ="daRectangle_MouseLeftButtonDown"  Fill ="Red"  Width ="100"  Height ="50" >

                 < Rectangle.RenderTransform >

                     < TranslateTransform  x:Name ="daTransform"  X ="0"  Y ="0"   />

                 </ Rectangle.RenderTransform >

             </ Rectangle >

         </ Grid >

         < Grid  Margin ="5"   >

             < Grid.Resources >

                 < Storyboard  x:Name ="paStoryboard" >

                     < PointAnimationUsingKeyFrames

                         Storyboard.TargetName ="paGeometry"

                        Storyboard.TargetProperty ="Center"

                        Duration ="0:0:10"

                     >

                         < LinearPointKeyFrame  Value ="100,100"  KeyTime ="0:0:3"   />

                         < discretePointKeyFrame  Value ="200,200"  KeyTime ="0:0:4"   />

                         < SplinePointKeyFrame  Value ="50,50"  KeySpline ="0.6,0.00"  KeyTime ="0:0:6"   />

                     </ PointAnimationUsingKeyFrames >

                 </ Storyboard >

             </ Grid.Resources >

             < Path  Fill ="Red"  MouseLeftButtonDown ="paPath_MouseLeftButtonDown" >

                 < Path.Data >

                     < EllipseGeometry  x:Name ="paGeometry"  Center ="50,50"  RadiusX ="15"  RadiusY ="15"   />

                 </ Path.Data >

             </ Path >

         </ Grid >

     </ StackPanel >

</ UserControl >

KeyFrame.xaml.cs

using  System;

using  System.Collections.Generic;

using  System.Linq;

using  System.Net;

using  System.Windows;

using  System.Windows.Controls;

using  System.Windows.Documents;

using  System.Windows.Input;

using  System.Windows.Media;

using  System.Windows.Media.Animation;

using  System.Windows.Shapes;

namespace  Silverlight20.Animation

{

    public partial class KeyFrame : UserControl

    

{

        public KeyFrame()

        

{

            InitializeComponent();

        }

        private void caRectangle_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)

        

{

            caStoryboard.Begin();

        }

        private void daRectangle_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)

        

{

            daStoryboard.Begin();

        }

        private void paPath_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)

        

{

            paStoryboard.Begin();

        }

    }

}

5、Programmatically.xaml

< UserControl  x:Class ="Silverlight20.Animation.Programmatically"

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

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

     < StackPanel  HorizontalAlignment ="Left" >

         <!--

        MouseLeftButtonDown - 在该Canvas上单击鼠标后所执行的事件

         -->

         < Canvas  x:Name ="canvas"  Background ="Yellow"  Width ="640"  Height ="480"  MouseLeftButtonDown ="Canvas_MouseLeftButtonDown" >

             < Path  Fill ="Red" >

                 < Path.Data >

                     < EllipseGeometry  x:Name ="ellipseGeometry"  Center ="200,100"  RadiusX ="15"  RadiusY ="15"   />

                 </ Path.Data >

             </ Path >

         </ Canvas >

         < StackPanel.Resources >

             < Storyboard  x:Name ="storyboard" >

                 < PointAnimation 

                     x:Name ="pointAnimation"

                    Storyboard.TargetProperty ="Center"

                    Storyboard.TargetName ="ellipseGeometry"

                    Duration ="0:0:2" />

             </ Storyboard >

         </ StackPanel.Resources >

     </ StackPanel >

</ UserControl >

Programmatically.xaml.cs

using  System;

using  System.Collections.Generic;

using  System.Linq;

using  System.Net;

using  System.Windows;

using  System.Windows.Controls;

using  System.Windows.Documents;

using  System.Windows.Input;

using  System.Windows.Media;

using  System.Windows.Media.Animation;

using  System.Windows.Shapes;

namespace  Silverlight20.Animation

{

    public partial class Programmatically : UserControl

    

{

        public Programmatically()

        

{

            InitializeComponent();

        }

        private void Canvas_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)

@H_835_4045@

@H_455_4048@

        

{

            // 鼠标相对与canvas的坐标

            double newX = e.GetPosition(canvas).X;

            double newY = e.GetPosition(canvas).Y;

            Point myPoint = new Point(newX, newY);

            // 将动画的结束值设置为鼠标的当前坐标

            pointAnimation.To = myPoint;

            // 播放动画

            storyboard.Begin();

        }

    }

}

OK
[源码下载]