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WPF(Windows10通用应用程序开发) 线性插值动画 or 帧动画学习笔记及实例

  • 线性插值动画:
  1. [Storyboard]基本属性:

    TargetProperty:目标属性

    TargetName:目标名称    

    From:指向属性的初始值;(可省略)

    To/By:(二选一)

      To:指向属性动画完成后的值;(可省略)  

      By:指向属性初始值增加的值;(可省略)

    Duration:动画执行时间:格式:hh:mm:ss(如:0:0:1表示动画执行1s)

    AutoReverse:时间线(动画)达到Duration终点时是否倒退(true/false)

    RepeatBehavior:表示时间线(动画)播放次数

      ·Forever:表示动画一直运行;

      ·RepeatBehavior = "3x":表示动画执行3次(次数后面加‘x’作为原意字符)

      ·"[天.]hh:mm:ss[.秒的小数部分]":等于此格式表示 动画重复执行时间

    例(利用时间触发器):

<StackPanel x:Name="abc">
        <Rectangle x:Name="rect" Width="0" Height="100">
            <Rectangle.Fill>
                <SolidColorBrush Color="Blue"/>
            </Rectangle.Fill>
            <Rectangle.Triggers>
                <EventTrigger RoutedEvent="Loaded">//加载事件触发器
                    <BeginStoryboard>
                        <Storyboard RepeatBehavior="Forever" AutoReverse="True">//设置动画倒退并无限播放
                            <DoubleAnimation
                                Storyboard.TargetName="rect"//目标属性名称
                                Storyboard.TargetProperty="Width"//设置目标属性
                                From="100" To="200" Duration="0:0:3" />//From:设置初始属性的值 To:设置最后的属性的值 Duration:设置动画播放时间为3s
                        </Storyboard>
                    </BeginStoryboard>
                </EventTrigger>
            </Rectangle.Triggers>
        </Rectangle>
    </StackPanel>

 

 

 

    2.[Storyboard]动画类型属性:

    DoubleAnimation:变化动画

      ·TarnslateTransform:实现偏移动画

      ·RotateTransform:实现旋转动画

      ·ScaleTransform:实现缩放动画

    例:

<Canvas x:Name="canvasS" Loaded="Canvas_Loaded">
        <Canvas.Resources>
            <Storyboard x:Key="storyBoard">
                <DoubleAnimation Storyboard.TargetName="scaleTransfrom" 
                             Storyboard.TargetProperty="ScaleY"
                             From="1" To="2" Duration="0:0:3" //设置scaleTransfrom沿Y轴放大两倍
                             AutoReverse="True" RepeatBehavior="Forever"/>
            </Storyboard>
        </Canvas.Resources>
        <Rectangle x:Name="rectangle" Height="50" Width="50" Canvas.Left="75" Canvas.Top="75" Fill="Blue">
            <Rectangle.RenderTransform>
                <ScaleTransform x:Name="scaleTransfrom"/>//设置属性名称为ScaleTransform
       </Rectangle.RenderTransform> 
     </Rectangle>
     </Canvas>

private void Canvas_Loaded(object sender, RoutedEventArgs e)
{
rectangle.BeginStoryboard((Storyboard)canvasS.Resources[
"storyBoard"]);
}

 

 

 

    ColorAnimation:颜色渐变动画

      例1(利用事件,在后台事件控制播放动画):

 <Window.Resources>
        <Storyboard x:Key="storyboard1">
            <ColorAnimation From="Red" To="Yellow" //从红色渐变成黄色
                            Storyboard.TargetName="button1"
                            Storyboard.TargetProperty="(Button.Background).(SolidColorBrush.Color)" //(Button.Background).(SolidColorBrush.Color)表示目标属性为Button.Background类型为SolidColorBrush.Color的Color属性
                            Duration="0:0:5"
                            ></ColorAnimation>
        </Storyboard>
    </Window.Resources>
    <Grid>
        <Button x:Name="button" Content="start" Margin="10,10,10,0" VerticalAlignment="Top" Click="button_Click"/>
        <Button x:Name="button1" Content="Test" Margin="10,41,10,0" VerticalAlignment="Top"/>
    </Grid>

 private void button_Click(object sender, RoutedEventArgs e)
        {
            button1.BeginStoryboard((Storyboard)this.Resources["storyboard1"]);
        }

 

 例2(使用触发器控制播放动画):

 <Button  Content="Another Button" Height="30" Width="200"   HorizontalAlignment="Left">
                <Button.Background>
                    <SolidColorBrush x:Name="myAnimatedBrush" Color="Blue" />
                </Button.Background>
                <Button.Triggers>
                    <!-- Animates the color of the brush used to paint the second button from red to blue . -->
                    <EventTrigger RoutedEvent="Button.Click">
                        <BeginStoryboard>
                            <Storyboard>
                                <ColorAnimation  Storyboard.TargetName="myAnimatedBrush"
                                                 Storyboard.TargetProperty="Color"
                                                 From="Red" To="Blue" Duration="0:0:7" />
                            </Storyboard>
                        </BeginStoryboard>
                    </EventTrigger>
                </Button.Triggers>
            </Button>

  

 

    PointAnimation:Path图形动画

    在PathGeometry创建图形,改变图形中的某些点实现动画

例:扇形动画

利用四条曲线组合成一个圆,最后用一条直线连接圆心组成一个闭合图形,控制第三个扇形的第三个点,实现小精灵张嘴闭嘴的动画

  <Window.Resources>
        <Storyboard x:Name="storyboard1" x:Key="storyBoard">
            <PointAnimation From="60,10" To="100,50" Duration="0:0:2"
                                Storyboard.TargetName="bezierSegment" Storyboard.TargetProperty="Point3"
                                RepeatBehavior="5" AutoReverse="True"
                                />
        </Storyboard>
    </Window.Resources>
    <StackPanel x:Name="path" Loaded="StackPanel_Loaded">
            <Button Content="运行动画" Click="Button_Click"/>
            <Path  Fill="#FF4080FF" HorizontalAlignment="Left" Height="100" Width="100" Margin="162,164,0,0" VerticalAlignment="Top" Stretch="Fill">
                <Path.Data>
                    <PathGeometry>
                        <PathFigure StartPoint="100,50">
                            <BezierSegment Point1="100,77.6142" Point2="77.6142,100" Point3="50,100"></BezierSegment>
                            <BezierSegment Point1="22.3858,100" Point2="0,77.6142" Point3="0,50"></BezierSegment>
                            <BezierSegment Point1="0,22.3858" Point2="22.3858,0" Point3="50,0"></BezierSegment>
                            <BezierSegment x:Name="bezierSegment" Point1="77.6142,0" Point2="100,22.3858" Point3="100,50"></BezierSegment>
                            <LineSegment Point="50,50"/>
                            <!--形成一个闭合图形-->
                        </PathFigure>
                    </PathGeometry>
                </Path.Data>
            </Path>
        </StackPanel>

        private void Button_Click(object sender, RoutedEventArgs e)
        {
            path.BeginStoryboard((Storyboard)this.Resources["storyBoard"]);
        }

  

 

WPF(Windows10通用应用程序开发) 线性插值动画 or 帧动画学习笔记及实例