WPF之动画
来源：互联网 发布：淘宝网针织护腰带 编辑：程序博客网 时间：2024/06/06 00:47
线性关键帧、不连续关键帧动画：
<Window.Triggers> <EventTrigger RoutedEvent="Window.Loaded"> <EventTrigger.Actions> <BeginStoryboard> <Storyboard> <PointAnimationUsingKeyFrames Storyboard.TargetName="ellipse" Storyboard.TargetProperty="Fill.GradientOrigin" RepeatBehavior="Forever" > <LinearPointKeyFrame Value="0.7,0.3" KeyTime="0:0:0"></LinearPointKeyFrame> <LinearPointKeyFrame Value="0.3,0.7" KeyTime="0:0:5"></LinearPointKeyFrame> <LinearPointKeyFrame Value="0.5,0.9" KeyTime="0:0:8"></LinearPointKeyFrame> <LinearPointKeyFrame Value="0.9,0.6" KeyTime="0:0:10"></LinearPointKeyFrame> <LinearPointKeyFrame Value="0.8,0.2" KeyTime="0:0:12"></LinearPointKeyFrame> <LinearPointKeyFrame Value="0.7,0.3" KeyTime="0:0:14"></LinearPointKeyFrame> <DiscretePointKeyFrame Value="0.7,0.3" KeyTime="0:0:20"></DiscretePointKeyFrame> <DiscretePointKeyFrame Value="0.3,0.7" KeyTime="0:0:25"></DiscretePointKeyFrame> <DiscretePointKeyFrame Value="0.5,0.9" KeyTime="0:0:28"></DiscretePointKeyFrame> <DiscretePointKeyFrame Value="0.9,0.6" KeyTime="0:0:20"></DiscretePointKeyFrame> <DiscretePointKeyFrame Value="0.8,0.2" KeyTime="0:0:22"></DiscretePointKeyFrame> <DiscretePointKeyFrame Value="0.7,0.3" KeyTime="0:0:24"></DiscretePointKeyFrame> </PointAnimationUsingKeyFrames> <ColorAnimation Storyboard.TargetName="ellipse" Storyboard.TargetProperty="Fill.GradientStops[1].Color" To="Black" Duration="0:0:10" AutoReverse="True" RepeatBehavior="Forever"></ColorAnimation> </Storyboard> </BeginStoryboard> </EventTrigger.Actions> </EventTrigger> </Window.Triggers> <Grid> <Ellipse Name="ellipse" Margin="5" Grid.Row="1" Stretch="Uniform"> <Ellipse.Fill> <RadialGradientBrush RadiusX="1" RadiusY="1" GradientOrigin="0.7,0.3"> <GradientStop Color="White" Offset="0" ></GradientStop> <GradientStop Color="Blue" Offset="1" ></GradientStop> </RadialGradientBrush> </Ellipse.Fill> </Ellipse> </Grid>视觉动画：
<Button Name="visual" HorizontalAlignment="Center" VerticalAlignment="Center"> <Button.Content>Test</Button.Content> <Button.Triggers> <EventTrigger RoutedEvent="Button.Click"> <BeginStoryboard> <Storyboard RepeatBehavior="Forever"> <DoubleAnimation Storyboard.TargetName="rectangle" Storyboard.TargetProperty="RenderTransform.Children[0].AngleY" To="180" Duration="0:0:15" AutoReverse="True"></DoubleAnimation> <DoubleAnimation Storyboard.TargetName="rectangle" Storyboard.TargetProperty="RenderTransform.Children[1].Angle" To="180" Duration="0:0:20" AutoReverse="True"></DoubleAnimation> <DoubleAnimation Storyboard.TargetName="rectangle" Storyboard.TargetProperty="Opacity" To="0.1" Duration="0:0:4" AutoReverse="True"></DoubleAnimation> </Storyboard> </BeginStoryboard> </EventTrigger> </Button.Triggers> </Button> <Rectangle Grid.Row="1" Name="rectangle" Width="100" Stretch="Uniform" ClipToBounds="False" RenderTransformOrigin="0.5,0.5"> <Rectangle.Fill> <VisualBrush Visual="{Binding ElementName=visual}"> </VisualBrush> </Rectangle.Fill> <Rectangle.RenderTransform> <TransformGroup> <SkewTransform CenterX="0.5"></SkewTransform> <RotateTransform CenterX="0.5" CenterY="0.5"></RotateTransform> </TransformGroup> </Rectangle.RenderTransform> </Rectangle> </Grid>样式动画： <Style TargetType="{x:Type Button}"> <Setter Property="HorizontalAlignment" Value="Center"></Setter> <Setter Property="RenderTransformOrigin" Value="0.5,0.5"></Setter> <Setter Property="Padding" Value="20,15"></Setter> <Setter Property="Margin" Value="2"></Setter> <Setter Property="Effect"> <Setter.Value> <BlurEffect Radius="10"></BlurEffect> </Setter.Value> </Setter> <Style.Triggers> <EventTrigger RoutedEvent="Button.MouseEnter"> <EventTrigger.Actions> <BeginStoryboard> <Storyboard> <DoubleAnimation Storyboard.TargetProperty="Effect.Radius" To="0" Duration="0:0:0.4"></DoubleAnimation> </Storyboard> </BeginStoryboard> </EventTrigger.Actions> </EventTrigger> <EventTrigger RoutedEvent="Button.MouseLeave"> <EventTrigger.Actions> <BeginStoryboard> <Storyboard> <DoubleAnimation Storyboard.TargetProperty="Effect.Radius" To="10" Duration="0:0:0.2"></DoubleAnimation> </Storyboard> </BeginStoryboard> </EventTrigger.Actions> </EventTrigger> </Style.Triggers> </Style> </Window.Resources> <StackPanel Margin="5"> <Button>One</Button> <Button>Two</Button> <Button>Three</Button> <Button>Four</Button> <TextBlock Name="lbl" Margin="5"></TextBlock> </StackPanel><Window.Triggers> <EventTrigger RoutedEvent="Window.Loaded"> <EventTrigger.Actions> <BeginStoryboard> <Storyboard SpeedRatio="1.5"> <DoubleAnimation Storyboard.TargetName="element" Storyboard.TargetProperty="Opacity" From="0.2" To="1" Duration="0:0:2.5"></DoubleAnimation> <DoubleAnimation Storyboard.TargetName="element" Storyboard.TargetProperty="RenderTransform.Children[1].Angle" From="70" To="0" Duration="0:0:2" ></DoubleAnimation> <DoubleAnimation Storyboard.TargetName="element" Storyboard.TargetProperty="RenderTransform.Children[0].ScaleX" From="0" To="1" Duration="0:0:2" AccelerationRatio="1"></DoubleAnimation> <DoubleAnimation Storyboard.TargetName="element" Storyboard.TargetProperty="RenderTransform.Children[0].ScaleY" From="0" To="1" Duration="0:0:2" AccelerationRatio="1"></DoubleAnimation> <DoubleAnimation Storyboard.TargetName="element" Storyboard.TargetProperty="RenderTransform.Children[0].ScaleX" To="0.98" BeginTime="0:0:2" Duration="0:0:0.05" DecelerationRatio="1"></DoubleAnimation> <DoubleAnimation Storyboard.TargetName="element" Storyboard.TargetProperty="RenderTransform.Children[0].ScaleY" To="0.98" BeginTime="0:0:2" Duration="0:0:0.05" DecelerationRatio="1"></DoubleAnimation> <DoubleAnimation Storyboard.TargetName="element" Storyboard.TargetProperty="RenderTransform.Children[0].ScaleX" To="1" BeginTime="0:0:2.05" Duration="0:0:0.2" AccelerationRatio="1"></DoubleAnimation> <DoubleAnimation Storyboard.TargetName="element" Storyboard.TargetProperty="RenderTransform.Children[0].ScaleY" To="1" BeginTime="0:0:2.05" Duration="0:0:0.2" AccelerationRatio="1"></DoubleAnimation> </Storyboard> </BeginStoryboard> </EventTrigger.Actions> </EventTrigger> </Window.Triggers>
<Window.Triggers> <EventTrigger RoutedEvent="Window.Loaded"> <EventTrigger.Actions> <BeginStoryboard> <Storyboard SpeedRatio="1.5" Completed="storyboardCompleted"> <DoubleAnimation Storyboard.TargetName="rectangle" Storyboard.TargetProperty="Opacity" From="0.2" To="1" Duration="0:0:2.5"></DoubleAnimation> <DoubleAnimation Storyboard.TargetName="rectangle" Storyboard.TargetProperty="RenderTransform.Children[1].Angle" From="70" To="0" Duration="0:0:2" ></DoubleAnimation> <DoubleAnimation Storyboard.TargetName="rectangle" Storyboard.TargetProperty="RenderTransform.Children[0].ScaleX" From="0" To="1" Duration="0:0:2" AccelerationRatio="1"></DoubleAnimation> <DoubleAnimation Storyboard.TargetName="rectangle" Storyboard.TargetProperty="RenderTransform.Children[0].ScaleY" From="0" To="1" Duration="0:0:2" AccelerationRatio="1"></DoubleAnimation> <DoubleAnimation Storyboard.TargetName="rectangle" Storyboard.TargetProperty="RenderTransform.Children[0].ScaleX" To="0.98" BeginTime="0:0:2" Duration="0:0:0.05" DecelerationRatio="1"></DoubleAnimation> <DoubleAnimation Storyboard.TargetName="rectangle" Storyboard.TargetProperty="RenderTransform.Children[0].ScaleY" To="0.98" BeginTime="0:0:2" Duration="0:0:0.05" DecelerationRatio="1"></DoubleAnimation> <DoubleAnimation Storyboard.TargetName="rectangle" Storyboard.TargetProperty="RenderTransform.Children[0].ScaleX" To="1" BeginTime="0:0:2.05" Duration="0:0:0.2" AccelerationRatio="1"></DoubleAnimation> <DoubleAnimation Storyboard.TargetName="rectangle" Storyboard.TargetProperty="RenderTransform.Children[0].ScaleY" To="1" BeginTime="0:0:2.05" Duration="0:0:0.2" AccelerationRatio="1"></DoubleAnimation> </Storyboard> </BeginStoryboard> </EventTrigger.Actions> </EventTrigger> </Window.Triggers>基于帧的动画：
private bool rendering = false; private void cmdStart_Clicked(object sender, RoutedEventArgs e) { if (!rendering) { ellipses.Clear(); canvas.Children.Clear(); CompositionTarget.Rendering += RenderFrame; rendering = true; } } private void cmdStop_Clicked(object sender, RoutedEventArgs e) { StopRendering(); } private void StopRendering() { CompositionTarget.Rendering -= RenderFrame; rendering = false; } private List<EllipseInfo> ellipses = new List<EllipseInfo>(); private double accelerationY = 0.1; private int minStartingSpeed = 1; private int maxStartingSpeed = 50; private double speedRatio = 0.1; private int minEllipses = 20; private int maxEllipses = 100; private int ellipseRadius = 10; private void RenderFrame(object sender, EventArgs e) { if (ellipses.Count == 0) { // Animation just started. Create the ellipses. int halfCanvasWidth = (int)canvas.ActualWidth / 2; Random rand = new Random(); int ellipseCount = rand.Next(minEllipses, maxEllipses+1); for (int i = 0; i < ellipseCount; i++) { Ellipse ellipse = new Ellipse(); ellipse.Fill = Brushes.LimeGreen; ellipse.Width = ellipseRadius; ellipse.Height = ellipseRadius; Canvas.SetLeft(ellipse, halfCanvasWidth + rand.Next(-halfCanvasWidth, halfCanvasWidth)); Canvas.SetTop(ellipse, 0); canvas.Children.Add(ellipse); EllipseInfo info = new EllipseInfo(ellipse, speedRatio * rand.Next(minStartingSpeed, maxStartingSpeed)); ellipses.Add(info); } } else { for (int i = ellipses.Count-1; i >= 0; i--) { EllipseInfo info = ellipses[i]; double top = Canvas.GetTop(info.Ellipse); Canvas.SetTop(info.Ellipse, top + 1 * info.VelocityY); if (top >= (canvas.ActualHeight - ellipseRadius*2 - 10)) { // This circle has reached the bottom. // Stop animating it. ellipses.Remove(info); } else { // Increase the velocity. info.VelocityY += accelerationY; } if (ellipses.Count == 0) { // End the animation. // There's no reason to keep calling this method // if it has no work to do. StopRendering(); } } } } } public class EllipseInfo { public Ellipse Ellipse { get; set; } public double VelocityY { get; set; } public EllipseInfo(Ellipse ellipse, double velocityY) { VelocityY = velocityY; Ellipse = ellipse; } }KeySpline：<Window.Triggers> <EventTrigger RoutedEvent="Window.Loaded"> <EventTrigger.Actions> <BeginStoryboard> <Storyboard> <DoubleAnimationUsingKeyFrames Storyboard.TargetName="ellipse1" Storyboard.TargetProperty="(Canvas.Left)" > <SplineDoubleKeyFrame KeyTime="0:0:5" Value="250" KeySpline="0.25,0 0.5,0.7"></SplineDoubleKeyFrame> <SplineDoubleKeyFrame KeyTime="0:0:10" Value="500" KeySpline="0.25,0.8 0.2,0.4"></SplineDoubleKeyFrame> </DoubleAnimationUsingKeyFrames> <DoubleAnimation Storyboard.TargetName="ellipse2" Storyboard.TargetProperty="(Canvas.Left)" To="500" Duration="0:0:10"> </DoubleAnimation> </Storyboard> </BeginStoryboard> </EventTrigger.Actions> </EventTrigger> </Window.Triggers> <Canvas Margin="10"> <Ellipse Name="ellipse1" Canvas.Left="0" Fill="Red" Width="10" Height="10"></Ellipse> <Path Stroke="Blue" StrokeThickness="1" StrokeDashArray="2 1" Canvas.Top="25"> <Path.Data> <PathGeometry> <PathFigure> <BezierSegment Point1="25,0" Point2="50,70" Point3="100,100" /> </PathFigure> </PathGeometry> </Path.Data> <Path.RenderTransform> <ScaleTransform ScaleX="2.5"></ScaleTransform> </Path.RenderTransform> </Path> <Path Stroke="Blue" StrokeThickness="1" StrokeDashArray="2 1" Canvas.Left="250" Canvas.Top="25"> <Path.Data> <PathGeometry> <PathFigure> <BezierSegment Point1="25,80" Point2="20,40" Point3="100,100" /> </PathFigure> </PathGeometry> </Path.Data> <Path.RenderTransform> <ScaleTransform ScaleX="2.5"></ScaleTransform> </Path.RenderTransform> </Path> <Ellipse Name="ellipse2" Canvas.Top="150" Canvas.Left="0" Fill="Red" Width="10" Height="10"></Ellipse> </Canvas>基于路径动画：
<Window.Resources> <PathGeometry x:Key="path"> <PathFigure IsClosed="True"> <ArcSegment Point="100,200" Size="15,10" SweepDirection="Clockwise"></ArcSegment> <ArcSegment Point="400,50" Size="5,5" ></ArcSegment> </PathFigure> </PathGeometry> </Window.Resources> <Window.Triggers> <EventTrigger RoutedEvent="Window.Loaded"> <EventTrigger.Actions> <BeginStoryboard> <Storyboard> <DoubleAnimationUsingPath Storyboard.TargetName="image" Storyboard.TargetProperty="(Canvas.Left)" PathGeometry="{StaticResource path}" Duration="0:0:5" RepeatBehavior="Forever" Source="X" /> <DoubleAnimationUsingPath Storyboard.TargetName="image" Storyboard.TargetProperty="(Canvas.Top)" PathGeometry="{StaticResource path}" Duration="0:0:5" RepeatBehavior="Forever" Source="Y" /> </Storyboard> </BeginStoryboard> </EventTrigger.Actions> </EventTrigger> </Window.Triggers> <Canvas Margin="10"> <Path Stroke="Red" StrokeThickness="1" Data="{StaticResource path}" Canvas.Top="10" Canvas.Left="10"> </Path> <Image Name="image"> <Image.Source> <DrawingImage> <DrawingImage.Drawing> <GeometryDrawing Brush="LightSteelBlue"> <GeometryDrawing.Geometry> <GeometryGroup> <EllipseGeometry Center="10,10" RadiusX="9" RadiusY="4" /> <EllipseGeometry Center="10,10" RadiusX="4" RadiusY="9" /> </GeometryGroup> </GeometryDrawing.Geometry> <GeometryDrawing.Pen> <Pen Thickness="1" Brush="Black" /> </GeometryDrawing.Pen> </GeometryDrawing> </DrawingImage.Drawing> </DrawingImage> </Image.Source> </Image> </Canvas>旋转动画： <Style TargetType="{x:Type Button}"> <Setter Property="HorizontalAlignment" Value="Center"></Setter> <Setter Property="RenderTransformOrigin" Value="0.5,0.5"></Setter> <Setter Property="Padding" Value="20,15"></Setter> <Setter Property="Margin" Value="2"></Setter> <Setter Property="RenderTransform"> <Setter.Value> <RotateTransform></RotateTransform> </Setter.Value> </Setter> <Style.Triggers> <EventTrigger RoutedEvent="Button.MouseEnter"> <EventTrigger.Actions> <BeginStoryboard Name="rotateStoryboardBegin"> <Storyboard> <DoubleAnimation Storyboard.TargetProperty="RenderTransform.Angle" To="360" Duration="0:0:0.8" RepeatBehavior="Forever"></DoubleAnimation> </Storyboard> </BeginStoryboard> </EventTrigger.Actions> </EventTrigger> <EventTrigger RoutedEvent="Button.MouseLeave"> <EventTrigger.Actions> <BeginStoryboard> <Storyboard> <DoubleAnimation Storyboard.TargetProperty="RenderTransform.Angle" Duration="0:0:0.2"></DoubleAnimation> </Storyboard> </BeginStoryboard> </EventTrigger.Actions> </EventTrigger> </Style.Triggers> </Style> </Window.Resources> <StackPanel Margin="5" Button.Click="cmd_Clicked"> <Button>One</Button> <Button>Two</Button> <Button>Three</Button> <Button>Four</Button> <TextBlock Name="lbl" Margin="5"></TextBlock> </StackPanel>布局动画： <Style TargetType="{x:Type Button}"> <Setter Property="HorizontalAlignment" Value="Center"></Setter> <Setter Property="RenderTransformOrigin" Value="0.5,0.5"></Setter> <Setter Property="Padding" Value="20,15"></Setter> <Setter Property="Margin" Value="2"></Setter> <Setter Property="LayoutTransform"> <Setter.Value> <RotateTransform></RotateTransform> </Setter.Value> </Setter> <Style.Triggers> <EventTrigger RoutedEvent="Button.MouseEnter"> <EventTrigger.Actions> <BeginStoryboard Name="rotateStoryboardBegin"> <Storyboard> <DoubleAnimation Storyboard.TargetProperty="LayoutTransform.Angle" To="360" Duration="0:0:0.8" RepeatBehavior="Forever"></DoubleAnimation> </Storyboard> </BeginStoryboard> </EventTrigger.Actions> </EventTrigger> <EventTrigger RoutedEvent="Button.MouseLeave"> <EventTrigger.Actions> <!-- <RemoveStoryboard BeginStoryboardName="rotateStoryboardBegin"></RemoveStoryboard> --> <BeginStoryboard> <Storyboard> <DoubleAnimation Storyboard.TargetProperty="LayoutTransform.Angle" Duration="0:0:0.2"></DoubleAnimation> </Storyboard> </BeginStoryboard> </EventTrigger.Actions> </EventTrigger> </Style.Triggers> </Style> </Window.Resources> <StackPanel Margin="5" Button.Click="cmd_Clicked"> <Button>One</Button> <Button>Two</Button> <Button>Three</Button> <Button>Four</Button> <TextBlock Name="lbl" Margin="5"></TextBlock> </StackPanel> private void cmd_Clicked(object sender, RoutedEventArgs e) { lbl.Text = "You clicked: " + ((Button)e.OriginalSource).Content; }- WPF之动画
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