该动画所需的三维透视外观可以通过动画A实现。
PlaneProjection
. “摆”的过冲和后摆很可能用
BackEase
缓解功能。
这是一个粗略的尝试,虽然很接近,但您可能需要对数字进行更多的微调,以获得更平滑的结果(最终的解决方案并不完全正确):-
<Grid x:Name="LayoutRoot" Background="White">
<Grid.Resources>
<Storyboard x:Name="Swing">
<DoubleAnimationUsingKeyFrames Duration="0:0:1" Storyboard.TargetName="Notice"
Storyboard.TargetProperty="(Border.Projection).(PlaneProjection.RotationX)">
<EasingDoubleKeyFrame KeyTime="0:0:0.75" Value="15">
<EasingDoubleKeyFrame.EasingFunction>
<BackEase EasingMode="EaseOut" Amplitude="1.3" />
</EasingDoubleKeyFrame.EasingFunction>
</EasingDoubleKeyFrame>
<EasingDoubleKeyFrame KeyTime="0:0:1" Value="0">
<EasingDoubleKeyFrame.EasingFunction>
<BackEase EasingMode="EaseOut" Amplitude="2" />
</EasingDoubleKeyFrame.EasingFunction>
</EasingDoubleKeyFrame>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</Grid.Resources>
<Border x:Name="Notice" Background="Orange" CornerRadius="5" HorizontalAlignment="Left" VerticalAlignment="Top" Margin="10" >
<Border.Projection>
<PlaneProjection RotationX="90" CenterOfRotationY="0" />
</Border.Projection>
<TextBlock FontSize="24" FontWeight="Bold" Foreground="Yellow">NICE EFFECT?</TextBlock>
</Border>
<Button Content="Go" Height="35" HorizontalAlignment="Left" Margin="214,13,0,0" Name="button1" VerticalAlignment="Top" Width="142" Click="button1_Click" />
</Grid>
代码:
private void button1_Click(object sender, RoutedEventArgs e)
{
((PlaneProjection)Notice.Projection).RotationX = 90;
Swing.Begin();
}