WPF 加载等待动画

原文:WPF 加载等待动画

版权声明：本文为博主原创文章，未经博主允许不得转载。https://blog.csdn.net/qq_29844879/article/details/80216587

直接上代码：

xmal：

<Controls:MetroWindow x:Class="MyControlLibrarys.LoadDialog"

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

        xmlns:local="clr-namespace:MyControlLibrarys"

        Title="正在加载" WindowStyle="None" Height="180" Width="430" ShowMaxRestoreButton="False" ShowMinButton="False" ShowCloseButton="False"

        WindowStartupLocation="CenterScreen" Opacity="1">

    <Grid>

        <Grid.ColumnDefinitions>

            <ColumnDefinition Width="*"/>

            <ColumnDefinition Width="4*"/>

        </Grid.ColumnDefinitions>

        <Label Height="36" Grid.Column="1" HorizontalAlignment="Left" Margin="20 0" Name="message" VerticalAlignment="Center" FontSize="20" />

        <Grid Width="35" Height="35">

            <Grid.Resources>

                <DrawingBrush x:Key="brush" Stretch="None" AlignmentX="Center" AlignmentY="Top">

                    <DrawingBrush.Drawing>

                        <GeometryDrawing Brush="Black">

                            <GeometryDrawing.Geometry>

                                <EllipseGeometry RadiusX="2" RadiusY="5"/>

                            </GeometryDrawing.Geometry>

                        </GeometryDrawing>

                    </DrawingBrush.Drawing>

                </DrawingBrush>

            </Grid.Resources>

            <Rectangle x:Name="r01" Fill="{StaticResource brush}" Opacity="0.2" RenderTransformOrigin="0.5,0.5">

                <Rectangle.RenderTransform>

                    <RotateTransform Angle="0"/>

                </Rectangle.RenderTransform>

            </Rectangle>

            <Rectangle x:Name="r02" Fill="{StaticResource brush}" Opacity="0.2" RenderTransformOrigin="0.5,0.5">

                <Rectangle.RenderTransform>

                    <RotateTransform Angle="30"/>

                </Rectangle.RenderTransform>

            </Rectangle>

            <Rectangle x:Name="r03" Fill="{StaticResource brush}" Opacity="0.2" RenderTransformOrigin="0.5,0.5">

                <Rectangle.RenderTransform>

                    <RotateTransform Angle="60"/>

                </Rectangle.RenderTransform>

            </Rectangle>

            <Rectangle x:Name="r04" Fill="{StaticResource brush}" Opacity="0.2" RenderTransformOrigin="0.5,0.5">

                <Rectangle.RenderTransform>

                    <RotateTransform Angle="90"/>

                </Rectangle.RenderTransform>

            </Rectangle>

            <Rectangle x:Name="r05" Fill="{StaticResource brush}" Opacity="0.2" RenderTransformOrigin="0.5,0.5">

                <Rectangle.RenderTransform>

                    <RotateTransform Angle="120"/>

                </Rectangle.RenderTransform>

            </Rectangle>

            <Rectangle x:Name="r06" Fill="{StaticResource brush}" Opacity="0.2" RenderTransformOrigin="0.5,0.5">

                <Rectangle.RenderTransform>

                    <RotateTransform Angle="150"/>

                </Rectangle.RenderTransform>

            </Rectangle>

            <Rectangle x:Name="r07" Fill="{StaticResource brush}" Opacity="0.2" RenderTransformOrigin="0.5,0.5">

                <Rectangle.RenderTransform>

                    <RotateTransform Angle="180"/>

                </Rectangle.RenderTransform>

            </Rectangle>

            <Rectangle x:Name="r08" Fill="{StaticResource brush}" Opacity="0.2" RenderTransformOrigin="0.5,0.5">

                <Rectangle.RenderTransform>

                    <RotateTransform Angle="210"/>

                </Rectangle.RenderTransform>

            </Rectangle>

            <Rectangle x:Name="r09" Fill="{StaticResource brush}" Opacity="0.2" RenderTransformOrigin="0.5,0.5">

                <Rectangle.RenderTransform>

                    <RotateTransform Angle="240"/>

                </Rectangle.RenderTransform>

            </Rectangle>

            <Rectangle x:Name="r10" Fill="{StaticResource brush}" Opacity="0.2" RenderTransformOrigin="0.5,0.5">

                <Rectangle.RenderTransform>

                    <RotateTransform Angle="270"/>

                </Rectangle.RenderTransform>

            </Rectangle>

            <Rectangle x:Name="r11" Fill="{StaticResource brush}" Opacity="0.2" RenderTransformOrigin="0.5,0.5">

                <Rectangle.RenderTransform>

                    <RotateTransform Angle="300"/>

                </Rectangle.RenderTransform>

            </Rectangle>

            <Rectangle x:Name="r12" Fill="{StaticResource brush}" Opacity="0.2" RenderTransformOrigin="0.5,0.5">

                <Rectangle.RenderTransform>

                    <RotateTransform Angle="330"/>

                </Rectangle.RenderTransform>

            </Rectangle>

            <Grid.Triggers>

                <EventTrigger RoutedEvent="Grid.Loaded">

                    <BeginStoryboard>

                        <Storyboard RepeatBehavior="Forever">

                            <DoubleAnimation Storyboard.TargetName="r01" Storyboard.TargetProperty="Opacity" AutoReverse="True" Duration="0:0:0.08333" BeginTime="0:0:0.00000" To="0"/>

                            <DoubleAnimation Storyboard.TargetName="r02" Storyboard.TargetProperty="Opacity" AutoReverse="True" Duration="0:0:0.08333" BeginTime="0:0:0.08333" To="0"/>

                            <DoubleAnimation Storyboard.TargetName="r03" Storyboard.TargetProperty="Opacity" AutoReverse="True" Duration="0:0:0.08333" BeginTime="0:0:0.16666" To="0"/>

                            <DoubleAnimation Storyboard.TargetName="r04" Storyboard.TargetProperty="Opacity" AutoReverse="True" Duration="0:0:0.08333" BeginTime="0:0:0.24999" To="0"/>

                            <DoubleAnimation Storyboard.TargetName="r05" Storyboard.TargetProperty="Opacity" AutoReverse="True" Duration="0:0:0.08333" BeginTime="0:0:0.33332" To="0"/>

                            <DoubleAnimation Storyboard.TargetName="r06" Storyboard.TargetProperty="Opacity" AutoReverse="True" Duration="0:0:0.08333" BeginTime="0:0:0.41665" To="0"/>

                            <DoubleAnimation Storyboard.TargetName="r07" Storyboard.TargetProperty="Opacity" AutoReverse="True" Duration="0:0:0.08333" BeginTime="0:0:0.49998" To="0"/>

                            <DoubleAnimation Storyboard.TargetName="r08" Storyboard.TargetProperty="Opacity" AutoReverse="True" Duration="0:0:0.08333" BeginTime="0:0:0.58331" To="0"/>

                            <DoubleAnimation Storyboard.TargetName="r09" Storyboard.TargetProperty="Opacity" AutoReverse="True" Duration="0:0:0.08333" BeginTime="0:0:0.66664" To="0"/>

                            <DoubleAnimation Storyboard.TargetName="r10" Storyboard.TargetProperty="Opacity" AutoReverse="True" Duration="0:0:0.08333" BeginTime="0:0:0.74997" To="0"/>

                            <DoubleAnimation Storyboard.TargetName="r11" Storyboard.TargetProperty="Opacity" AutoReverse="True" Duration="0:0:0.08333" BeginTime="0:0:0.83330" To="0"/>

                            <DoubleAnimation Storyboard.TargetName="r12" Storyboard.TargetProperty="Opacity" AutoReverse="True" Duration="0:0:0.08333" BeginTime="0:0:0.91663" To="0"/>

                        </Storyboard>

                    </BeginStoryboard>

                </EventTrigger>

            </Grid.Triggers>

        </Grid>

    </Grid>

</Controls:MetroWindow>

.cs：

 /// <summary>

    /// Interaction logic for LoadDialog.xaml

    /// </summary>

    public partial class LoadDialog : MetroWindow

    {

        public LoadDialog()

        {

            InitializeComponent();

            //this.Topmost = true;    //始终保持最上层

        }

        public void SetProgressText(string desc)

        {

            //this.message.Content = desc;

            this.Dispatcher.Invoke(new Action(() =>

            {

                this.message.Content = desc;

            }));

        }

    }