方案: 图标位置不变化的情况下设置透明度实现

代码:

<Window

    x:Class="WpfApp1.MainWindow"

    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

    xmlns:ec="http://schemas.microsoft.com/expression/2010/controls"

    xmlns:local="clr-namespace:WpfApp1"

    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

    Title="MainWindow"

    Width="300"

    Height="300"

    mc:Ignorable="d">

    <Window.Resources>

        <Duration x:Key="AnimationTime">0:0:.84</Duration>

    </Window.Resources>

    <Grid Background="Gray">

        <Ellipse

            x:Name="ellipse"

            Width="80"

            Height="80"

            RenderTransformOrigin="0.5,0.5" />

        <ec:PathListBox HorizontalAlignment="Left" VerticalAlignment="Top">

            <ec:PathListBox.LayoutPaths>

                <ec:LayoutPath Distribution="Even" SourceElement="{Binding ElementName=ellipse}" />

            </ec:PathListBox.LayoutPaths>

            <Ellipse

                Width="15"

                Height="15"

                Fill="White">

                <Ellipse.Triggers>

                    <EventTrigger RoutedEvent="Window.Loaded">

                        <BeginStoryboard>

                            <Storyboard>

                                <DoubleAnimation

                                    BeginTime="0:0:.770"

                                    RepeatBehavior="Forever"

                                    Storyboard.TargetProperty="Opacity"

                                    From=".2"

                                    To="1"

                                    Duration="{StaticResource AnimationTime}" />

                            </Storyboard>

                        </BeginStoryboard>

                    </EventTrigger>

                </Ellipse.Triggers>

            </Ellipse>

            <Ellipse

                Width="15"

                Height="15"

                Fill="White">

                <Ellipse.Triggers>

                    <EventTrigger RoutedEvent="Window.Loaded">

                        <BeginStoryboard>

                            <Storyboard>

                                <DoubleAnimation

                                    BeginTime="0:0:.700"

                                    RepeatBehavior="Forever"

                                    Storyboard.TargetProperty="Opacity"

                                    From=".2"

                                    To="1"

                                    Duration="{StaticResource AnimationTime}" />

                            </Storyboard>

                        </BeginStoryboard>

                    </EventTrigger>

                </Ellipse.Triggers>

            </Ellipse>

            <Ellipse

                Width="15"

                Height="15"

                Fill="White">

                <Ellipse.Triggers>

                    <EventTrigger RoutedEvent="Window.Loaded">

                        <BeginStoryboard>

                            <Storyboard>

                                <DoubleAnimation

                                    BeginTime="0:0:.630"

                                    RepeatBehavior="Forever"

                                    Storyboard.TargetProperty="Opacity"

                                    From=".2"

                                    To="1"

                                    Duration="{StaticResource AnimationTime}" />

                            </Storyboard>

                        </BeginStoryboard>

                    </EventTrigger>

                </Ellipse.Triggers>

            </Ellipse>

            <Ellipse

                Width="15"

                Height="15"

                Fill="White">

                <Ellipse.Triggers>

                    <EventTrigger RoutedEvent="Window.Loaded">

                        <BeginStoryboard>

                            <Storyboard>

                                <DoubleAnimation

                                    BeginTime="0:0:.560"

                                    RepeatBehavior="Forever"

                                    Storyboard.TargetProperty="Opacity"

                                    From=".2"

                                    To="1"

                                    Duration="{StaticResource AnimationTime}" />

                            </Storyboard>

                        </BeginStoryboard>

                    </EventTrigger>

                </Ellipse.Triggers>

            </Ellipse>

            <Ellipse

                Width="15"

                Height="15"

                Fill="White">

                <Ellipse.Triggers>

                    <EventTrigger RoutedEvent="Window.Loaded">

                        <BeginStoryboard>

                            <Storyboard>

                                <DoubleAnimation

                                    BeginTime="0:0:.490"

                                    RepeatBehavior="Forever"

                                    Storyboard.TargetProperty="Opacity"

                                    From=".2"

                                    To="1"

                                    Duration="{StaticResource AnimationTime}" />

                            </Storyboard>

                        </BeginStoryboard>

                    </EventTrigger>

                </Ellipse.Triggers>

            </Ellipse>

            <Ellipse

                Width="15"

                Height="15"

                Fill="White">

                <Ellipse.Triggers>

                    <EventTrigger RoutedEvent="Window.Loaded">

                        <BeginStoryboard>

                            <Storyboard>

                                <DoubleAnimation

                                    BeginTime="0:0:.420"

                                    RepeatBehavior="Forever"

                                    Storyboard.TargetProperty="Opacity"

                                    From=".2"

                                    To="1"

                                    Duration="{StaticResource AnimationTime}" />

                            </Storyboard>

                        </BeginStoryboard>

                    </EventTrigger>

                </Ellipse.Triggers>

            </Ellipse>

            <Ellipse

                Width="15"

                Height="15"

                Fill="White">

                <Ellipse.Triggers>

                    <EventTrigger RoutedEvent="Window.Loaded">

                        <BeginStoryboard>

                            <Storyboard>

                                <DoubleAnimation

                                    BeginTime="0:0:.350"

                                    RepeatBehavior="Forever"

                                    Storyboard.TargetProperty="Opacity"

                                    From=".2"

                                    To="1"

                                    Duration="{StaticResource AnimationTime}" />

                            </Storyboard>

                        </BeginStoryboard>

                    </EventTrigger>

                </Ellipse.Triggers>

            </Ellipse>

            <Ellipse

                Width="15"

                Height="15"

                Fill="White">

                <Ellipse.Triggers>

                    <EventTrigger RoutedEvent="Window.Loaded">

                        <BeginStoryboard>

                            <Storyboard>

                                <DoubleAnimation

                                    BeginTime="0:0:0.280"

                                    RepeatBehavior="Forever"

                                    Storyboard.TargetProperty="Opacity"

                                    From=".2"

                                    To="1"

                                    Duration="{StaticResource AnimationTime}" />

                            </Storyboard>

                        </BeginStoryboard>

                    </EventTrigger>

                </Ellipse.Triggers>

            </Ellipse>

            <Ellipse

                Width="15"

                Height="15"

                Fill="White">

                <Ellipse.Triggers>

                    <EventTrigger RoutedEvent="Window.Loaded">

                        <BeginStoryboard>

                            <Storyboard>

                                <DoubleAnimation

                                    BeginTime="0:0:0.210"

                                    RepeatBehavior="Forever"

                                    Storyboard.TargetProperty="Opacity"

                                    From=".2"

                                    To="1"

                                    Duration="{StaticResource AnimationTime}" />

                            </Storyboard>

                        </BeginStoryboard>

                    </EventTrigger>

                </Ellipse.Triggers>

            </Ellipse>

            <Ellipse

                Width="15"

                Height="15"

                Fill="White">

                <Ellipse.Triggers>

                    <EventTrigger RoutedEvent="Window.Loaded">

                        <BeginStoryboard>

                            <Storyboard>

                                <DoubleAnimation

                                    BeginTime="0:0:0.140"

                                    RepeatBehavior="Forever"

                                    Storyboard.TargetProperty="Opacity"

                                    From=".2"

                                    To="1"

                                    Duration="{StaticResource AnimationTime}" />

                            </Storyboard>

                        </BeginStoryboard>

                    </EventTrigger>

                </Ellipse.Triggers>

            </Ellipse>

            <Ellipse

                Width="15"

                Height="15"

                Fill="White">

                <Ellipse.Triggers>

                    <EventTrigger RoutedEvent="Window.Loaded">

                        <BeginStoryboard>

                            <Storyboard>

                                <DoubleAnimation

                                    BeginTime="0:0:0.7"

                                    RepeatBehavior="Forever"

                                    Storyboard.TargetProperty="Opacity"

                                    From=".2"

                                    To="1"

                                    Duration="{StaticResource AnimationTime}" />

                            </Storyboard>

                        </BeginStoryboard>

                    </EventTrigger>

                </Ellipse.Triggers>

            </Ellipse>

            <Ellipse

                Width="15"

                Height="15"

                Fill="White">

                <Ellipse.Triggers>

                    <EventTrigger RoutedEvent="Window.Loaded">

                        <BeginStoryboard>

                            <Storyboard>

                                <DoubleAnimation

                                    BeginTime="0:0:0"

                                    RepeatBehavior="Forever"

                                    Storyboard.TargetProperty="Opacity"

                                    From=".2"

                                    To="1"

                                    Duration="{StaticResource AnimationTime}" />

                            </Storyboard>

                        </BeginStoryboard>

                    </EventTrigger>

                </Ellipse.Triggers>

            </Ellipse>

        </ec:PathListBox>

    </Grid>

</Window>

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