add:软件启动动画

Ink Canvas/Windows/SplashScreen.xaml

@@ -45,12 +45,36 @@
                 
                 <!-- 进度条 -->
                 <ProgressBar x:Name="LoadingProgress" 
-                             Width="500" 
-                             Height="8" 
+                             Width="530" 
+                             Height="5" 
                              Margin="0,-170,0,0"
                              Background="#40000000"
                              Foreground="#0078D4"
-                             IsIndeterminate="True" />
+                             IsIndeterminate="True">
+                    <ProgressBar.Style>
+                        <Style TargetType="ProgressBar">
+                            <Setter Property="Template">
+                                <Setter.Value>
+                                    <ControlTemplate TargetType="ProgressBar">
+                                        <Grid>
+                                            <Border Name="PART_Track" 
+                                                    Background="{TemplateBinding Background}" 
+                                                    CornerRadius="4"/>
+                                            <Border Name="PART_Indicator" 
+                                                    Background="{TemplateBinding Foreground}" 
+                                                    CornerRadius="4"
+                                                    HorizontalAlignment="Left">
+                                                <Border.RenderTransform>
+                                                    <ScaleTransform ScaleX="1" ScaleY="1"/>
+                                                </Border.RenderTransform>
+                                            </Border>
+                                        </Grid>
+                                    </ControlTemplate>
+                                </Setter.Value>
+                            </Setter>
+                        </Style>
+                    </ProgressBar.Style>
+                </ProgressBar>
             </StackPanel>
         </Grid>
     </Grid>

Ink Canvas/Windows/SplashScreen.xaml.cs

@@ -2,6 +2,7 @@ using System;
 using System.Reflection;
 using System.Threading.Tasks;
 using System.Windows;
+using System.Windows.Controls;
 using System.Windows.Media.Animation;
 using System.Windows.Threading;
 
@@ -91,8 +92,29 @@ namespace Ink_Canvas.Windows
         {
             Dispatcher.Invoke(() =>
             {
-                LoadingProgress.IsIndeterminate = false;
-                LoadingProgress.Value = progress;
+                if (LoadingProgress.IsIndeterminate)
+                {
+                    LoadingProgress.IsIndeterminate = false;
+                    LoadingProgress.Value = 0; 
+                }
+                
+                // 创建平滑过渡动画
+                var animation = new DoubleAnimation
+                {
+                    From = LoadingProgress.Value,
+                    To = progress,
+                    Duration = TimeSpan.FromMilliseconds(800), 
+                    EasingFunction = new CubicEase { EasingMode = EasingMode.EaseOut }
+                };
+                
+                // 添加动画完成事件
+                animation.Completed += (s, e) =>
+                {
+                    // 确保最终值正确设置
+                    LoadingProgress.Value = progress;
+                };
+                
+                LoadingProgress.BeginAnimation(ProgressBar.ValueProperty, animation);
             });
         }