代码创建 WPF 旋转动画

一、WPF窗体上有一个名为rectangle2的矩形

对应的XAML如下：

<Window x:Class="WpfVideo.Window1"
??????? xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
??????? xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
??????? Title="Window1" Height="434" Width="593" Loaded="Window_Loaded">
??? <Grid>
??????? <Button Content="Button" Height="23" HorizontalAlignment="Left" Margin="29,67,0,0" Name="button2" VerticalAlignment="Top" Width="75" Click="button2_Click" />
<Rectangle Height="71" HorizontalAlignment="Left" Margin="50,207,0,0" Name="rectangle2" Stroke="Black" VerticalAlignment="Top" Width="101" Fill="#FF967878" />
??????? <Button Content="Button" Height="23" HorizontalAlignment="Left" Margin="162,67,0,0" Name="button1" VerticalAlignment="Top" Width="75" Click="button1_Click" />
??? </Grid>
< /Window>

二、方法一

private void button1_Click(object sender, RoutedEventArgs e)
??????? {
??????????? RotateTransform rtf = new RotateTransform();
??????????? rectangle2.RenderTransform = rtf;
??????????? DoubleAnimation dbAscending = new DoubleAnimation(0, 360, new Duration(TimeSpan.FromSeconds(1)));
??????????? Storyboard storyboard = new Storyboard();
??????????? dbAscending.RepeatBehavior = RepeatBehavior.Forever;
??????????? storyboard.Children.Add(dbAscending);
??????????? Storyboard.SetTarget(dbAscending, rectangle2);
??????????? Storyboard.SetTargetProperty(dbAscending, new PropertyPath("RenderTransform.Angle"));
??????????? storyboard.Begin();
??????? }

三、方法二

private void button2_Click(object sender, RoutedEventArgs e)
??????? {
??????????? RotateTransform rtf = new RotateTransform();
??????????? rectangle2.RenderTransform = rtf;
??????????? DoubleAnimation dbAscending = new DoubleAnimation(0, 360, new Duration(TimeSpan.FromSeconds(1)));
??????????? dbAscending.RepeatBehavior = RepeatBehavior.Forever;
??????????? rtf.BeginAnimation(RotateTransform.AngleProperty, dbAscending);
??????? }