闪烁动画WPF

Question

我有这个动画,一种闪烁的动画,这样当点击按钮时,矩形"闪烁".我已经为动画编写了代码,只是想知道是否有更好的方法来实现这个动画.有什么建议？

代码如下:

    <Window.Resources>
    <Storyboard x:Key="OnClick1">
        <ObjectAnimationUsingKeyFrames Duration="0:0:10" Storyboard.TargetProperty="(UIElement.Visibility)" Storyboard.TargetName="rectangle">
            <DiscreteObjectKeyFrame KeyTime="0" Value="{x:Static Visibility.Collapsed}"/>
            <DiscreteObjectKeyFrame KeyTime="0:0:0.1" Value="{x:Static Visibility.Visible}"/>
            <DiscreteObjectKeyFrame KeyTime="0:0:0.2" Value="{x:Static Visibility.Collapsed}"/>
            <DiscreteObjectKeyFrame KeyTime="0:0:0.3" Value="{x:Static Visibility.Visible}"/>
            <DiscreteObjectKeyFrame KeyTime="0:0:0.4" Value="{x:Static Visibility.Collapsed}"/>
            <DiscreteObjectKeyFrame KeyTime="0:0:0.5" Value="{x:Static Visibility.Visible}"/>
            <DiscreteObjectKeyFrame KeyTime="0:0:0.6" Value="{x:Static Visibility.Collapsed}"/>
            <DiscreteObjectKeyFrame KeyTime="0:0:0.7" Value="{x:Static Visibility.Visible}"/>
            <DiscreteObjectKeyFrame KeyTime="0:0:0.8" Value="{x:Static Visibility.Collapsed}"/>
            <DiscreteObjectKeyFrame KeyTime="0:0:0.9" Value="{x:Static Visibility.Visible}"/>
        </ObjectAnimationUsingKeyFrames>
    </Storyboard>
</Window.Resources>
<Window.Triggers>
    <EventTrigger RoutedEvent="ButtonBase.Click" SourceName="button">
        <BeginStoryboard Storyboard="{StaticResource OnClick1}"/>
    </EventTrigger>
</Window.Triggers>

<Grid x:Name="LayoutRoot">
    <Rectangle x:Name="rectangle" Fill="#FFF4F4F5" HorizontalAlignment="Left" Height="35" Margin="129,166,0,0" Stroke="Black" VerticalAlignment="Top" Width="73"/>
    <Button x:Name="button" Content="Button" Margin="272,158,263,0" Height="37" VerticalAlignment="Top"/>
</Grid>

Answer 1

ObjectAnimationUsingKeyFrames您可以DoubleAnimation在Opacity矩形的属性上使用simple,而不是动画:

<Storyboard x:Key="OnClick1">
    <DoubleAnimation Storyboard.TargetName="rectangle"
                     Storyboard.TargetProperty="Opacity"
                     From="0"
                     To="1"
                     RepeatBehavior="10x"
                     AutoReverse="True"
                     Duration="0:0:0.1"/>
</Storyboard>

Answer 2

我知道这是一个旧线程，但是要添加到 Pavlo 的答案中，这对我有帮助并且是正确的。我想要更多的实际闪烁效果，而不是快速的“淡入淡出”。我使用了他的动画代码并对其进行了一些修改：

在您的资源中：

<!-- Animation to flicker, like a cursor when typing -->
<Storyboard x:Key="AnimateFlicker" RepeatBehavior="Forever">
    <DoubleAnimation Storyboard.TargetProperty="Opacity"
                     From="0"
                     To="1"
                     AutoReverse="True"
                     BeginTime="0:0:1"
                     Duration="0:0:0.08" />
    <DoubleAnimation Storyboard.TargetProperty="Opacity"
                     From="1"
                     To="1"
                     AutoReverse="True"
                     Duration="0:0:0.4" />
    <DoubleAnimation Storyboard.TargetProperty="Opacity"
                     From="1"
                     To="0"
                     AutoReverse="True"
                     Duration="0:0:0.08" />
</Storyboard>

在您的 XAML 中：

<TextBlock Text="Flicker Me" FontSize="14" Margin="0">
    <TextBlock.Triggers>
        <EventTrigger RoutedEvent="Loaded">
            <BeginStoryboard Storyboard="{StaticResource AnimateFlicker}" />
        </EventTrigger>
    </TextBlock.Triggers>
</TextBlock>