更新

App.xaml.cs

@@ -28,6 +28,12 @@ namespace 自救器呼吸器综合检验仪
 
         private void App_DispatcherUnhandledException(object sender, System.Windows.Threading.DispatcherUnhandledExceptionEventArgs e)
         {
+            if (AppShutdownCoordinator.ShouldSuppressDuringShutdown(e.Exception))
+            {
+                e.Handled = true;
+                return;
+            }
+
             LogError(e.Exception, "UI线程异常");
             e.Handled = true; // 标记为已处理，避免崩溃（仅用于调试）
         }
@@ -49,6 +55,11 @@ namespace 自救器呼吸器综合检验仪
             string logPath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "error.log");
             string logContent = $"[{DateTime.Now:yyyy-MM-dd HH:mm:ss}] {type}：\n{ex.ToString()}\n\n";
             File.AppendAllText(logPath, logContent);
+            if (AppShutdownCoordinator.IsShutdownInProgress)
+            {
+                return;
+            }
+
             MessageBox.Show($"发生错误，详情已记录到 {logPath}", "错误");
         }
 

AppShutdownCoordinator.cs

@@ -0,0 +1,65 @@
+using System;
+using System.ComponentModel;
+using System.Threading;
+using System.Windows;
+using System.Windows.Threading;
+
+namespace 自救器呼吸器综合检验仪
+{
+    internal static class AppShutdownCoordinator
+    {
+        private static int _shutdownRequested;
+
+        public static bool IsShutdownInProgress
+        {
+            get
+            {
+                Application application = Application.Current;
+                if (application == null)
+                {
+                    return Interlocked.CompareExchange(ref _shutdownRequested, 0, 0) == 1;
+                }
+
+                return Interlocked.CompareExchange(ref _shutdownRequested, 0, 0) == 1
+                    || application.Dispatcher.HasShutdownStarted
+                    || application.Dispatcher.HasShutdownFinished;
+            }
+        }
+
+        public static void RequestShutdown()
+        {
+            Application application = Application.Current;
+            if (application == null)
+            {
+                return;
+            }
+
+            if (Interlocked.Exchange(ref _shutdownRequested, 1) == 1)
+            {
+                return;
+            }
+
+            application.Dispatcher.BeginInvoke(
+                DispatcherPriority.ApplicationIdle,
+                new Action(() =>
+                {
+                    if (application.Dispatcher.HasShutdownStarted || application.Dispatcher.HasShutdownFinished)
+                    {
+                        return;
+                    }
+
+                    application.Shutdown();
+                }));
+        }
+
+        public static bool ShouldSuppressDuringShutdown(Exception exception)
+        {
+            if (!IsShutdownInProgress || exception == null)
+            {
+                return false;
+            }
+
+            return exception is InvalidOperationException || exception is Win32Exception;
+        }
+    }
+}

Data/BaseWindow.xaml

@@ -5,7 +5,7 @@
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
         xmlns:local="clr-namespace:自救器呼吸器综合检验仪.Data"
         mc:Ignorable="d"
-        Title="BaseWindow" Height="450" Width="800">
+        Title="BaseWindow" Height="600" Width="1024" WindowState="Maximized">
     <Grid>
         
     </Grid>

DetectionMenuWindow.xaml

@@ -2,7 +2,7 @@
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:local="clr-namespace:自救器呼吸器综合检验仪"
-        Title="检验功能选择" Height="700" Width="1200"
+        Title="检验功能选择" Height="600" Width="1024" WindowState="Maximized"
         WindowStartupLocation="CenterScreen"
         FontFamily="Segoe UI"
         Background="#F5F7FA">
@@ -127,4 +127,4 @@
             <Button Content="返回主页" Tag="FK_4" Style="{StaticResource ReturnButtonStyle}" Click="ReturnToMain_Click"/>
         </StackPanel>
     </Grid>
-</Window>
+</Window>

LoadingOverlayWindow.xaml

@@ -0,0 +1,187 @@
+<Window x:Class="自救器呼吸器综合检验仪.LoadingOverlayWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        WindowStyle="None"
+        AllowsTransparency="True"
+        Background="#5C0F2238"
+        ShowInTaskbar="False"
+        ShowActivated="False"
+        ResizeMode="NoResize"
+        Topmost="False"
+        WindowStartupLocation="Manual">
+    <Window.Resources>
+        <Storyboard x:Key="CardIntroStoryboard">
+            <DoubleAnimation Storyboard.TargetName="LoadingCard"
+                             Storyboard.TargetProperty="Opacity"
+                             From="0"
+                             To="1"
+                             Duration="0:0:0.18" />
+            <DoubleAnimation Storyboard.TargetName="CardTranslate"
+                             Storyboard.TargetProperty="Y"
+                             From="18"
+                             To="0"
+                             Duration="0:0:0.18" />
+        </Storyboard>
+
+        <Storyboard x:Key="SpinnerStoryboard" RepeatBehavior="Forever">
+            <DoubleAnimation Storyboard.TargetName="SpinnerRotate"
+                             Storyboard.TargetProperty="Angle"
+                             From="0"
+                             To="360"
+                             Duration="0:0:0.95" />
+            <DoubleAnimation Storyboard.TargetName="SpinnerGlowScale"
+                             Storyboard.TargetProperty="ScaleX"
+                             From="0.88"
+                             To="1.08"
+                             Duration="0:0:0.65"
+                             AutoReverse="True"
+                             RepeatBehavior="Forever" />
+            <DoubleAnimation Storyboard.TargetName="SpinnerGlowScale"
+                             Storyboard.TargetProperty="ScaleY"
+                             From="0.88"
+                             To="1.08"
+                             Duration="0:0:0.65"
+                             AutoReverse="True"
+                             RepeatBehavior="Forever" />
+        </Storyboard>
+
+        <Storyboard x:Key="SubtitlePulseStoryboard" RepeatBehavior="Forever" AutoReverse="True">
+            <DoubleAnimation Storyboard.TargetName="SubtitleText"
+                             Storyboard.TargetProperty="Opacity"
+                             From="0.62"
+                             To="1"
+                             Duration="0:0:0.8" />
+        </Storyboard>
+    </Window.Resources>
+
+    <Window.Triggers>
+        <EventTrigger RoutedEvent="Loaded">
+            <BeginStoryboard Storyboard="{StaticResource CardIntroStoryboard}" />
+            <BeginStoryboard Storyboard="{StaticResource SpinnerStoryboard}" />
+            <BeginStoryboard Storyboard="{StaticResource SubtitlePulseStoryboard}" />
+        </EventTrigger>
+    </Window.Triggers>
+
+    <Grid IsHitTestVisible="False">
+        <Border x:Name="LoadingCard"
+                Width="390"
+                Padding="32"
+                HorizontalAlignment="Center"
+                VerticalAlignment="Center"
+                CornerRadius="18"
+                Background="#F7FAFD"
+                BorderBrush="#CFE0F1"
+                BorderThickness="1"
+                Opacity="0">
+            <Border.Effect>
+                <DropShadowEffect BlurRadius="28"
+                                  Opacity="0.24"
+                                  ShadowDepth="0"
+                                  Color="#0F2238" />
+            </Border.Effect>
+            <Border.RenderTransform>
+                <TranslateTransform x:Name="CardTranslate" Y="18" />
+            </Border.RenderTransform>
+
+            <StackPanel>
+                <Border HorizontalAlignment="Center"
+                        Margin="0,0,0,14"
+                        Padding="12,5"
+                        CornerRadius="999"
+                        Background="#E6F0FA">
+                    <TextBlock Text="页面切换中"
+                               FontSize="12"
+                               FontWeight="SemiBold"
+                               Foreground="#245E95" />
+                </Border>
+
+                <Grid Width="92"
+                      Height="92"
+                      Margin="0,0,0,20"
+                      HorizontalAlignment="Center">
+                    <Ellipse Width="92"
+                             Height="92"
+                             Fill="#EAF2FB" />
+                    <Ellipse Width="72"
+                             Height="72"
+                             Fill="#F7FAFD">
+                        <Ellipse.Effect>
+                            <DropShadowEffect BlurRadius="16"
+                                              Opacity="0.12"
+                                              ShadowDepth="0"
+                                              Color="#2A7FD1" />
+                        </Ellipse.Effect>
+                    </Ellipse>
+                    <Canvas Width="56"
+                            Height="56"
+                            HorizontalAlignment="Center"
+                            VerticalAlignment="Center"
+                            RenderTransformOrigin="0.5,0.5">
+                        <Canvas.RenderTransform>
+                            <RotateTransform x:Name="SpinnerRotate" />
+                        </Canvas.RenderTransform>
+                        <Canvas.Effect>
+                            <DropShadowEffect BlurRadius="10"
+                                              Opacity="0.26"
+                                              ShadowDepth="0"
+                                              Color="#2A7FD1" />
+                        </Canvas.Effect>
+                        <Canvas.LayoutTransform>
+                            <ScaleTransform x:Name="SpinnerGlowScale" />
+                        </Canvas.LayoutTransform>
+
+                        <Ellipse Width="12" Height="12" Fill="#2A7FD1" Canvas.Left="22" Canvas.Top="0" />
+                        <Ellipse Width="10" Height="10" Fill="#4F98DE" Canvas.Left="39" Canvas.Top="7" />
+                        <Ellipse Width="8" Height="8" Fill="#76B0E8" Canvas.Left="48" Canvas.Top="23" />
+                        <Ellipse Width="7" Height="7" Fill="#A8D1F4" Canvas.Left="43" Canvas.Top="40" />
+                        <Ellipse Width="6" Height="6" Fill="#D3E8FA" Canvas.Left="25" Canvas.Top="49" />
+                        <Ellipse Width="7" Height="7" Fill="#9BC9F0" Canvas.Left="9" Canvas.Top="42" />
+                        <Ellipse Width="8" Height="8" Fill="#69A8E4" Canvas.Left="1" Canvas.Top="24" />
+                        <Ellipse Width="10" Height="10" Fill="#3B8BD7" Canvas.Left="8" Canvas.Top="7" />
+                    </Canvas>
+                </Grid>
+
+                <TextBlock x:Name="TitleText"
+                           Text="正在切换检测页面"
+                           FontSize="26"
+                           FontWeight="Bold"
+                           Foreground="#17324D"
+                           HorizontalAlignment="Center"
+                           TextAlignment="Center"
+                           TextWrapping="Wrap" />
+                <TextBlock x:Name="SubtitleText"
+                           Text="正在打开检测页面，请稍候..."
+                           Margin="0,10,0,6"
+                           FontSize="14"
+                           Foreground="#4C637A"
+                           HorizontalAlignment="Center"
+                           TextAlignment="Center"
+                           TextWrapping="Wrap" />
+                <TextBlock x:Name="HintText"
+                           Text="系统正在加载界面资源并同步设备状态，请稍候..."
+                           Margin="0,0,0,18"
+                           FontSize="12"
+                           Foreground="#6B7F93"
+                           HorizontalAlignment="Center"
+                           TextAlignment="Center"
+                           TextWrapping="Wrap" />
+
+                <Border Height="8"
+                        CornerRadius="999"
+                        Background="#DCE8F4">
+                    <Grid Width="110"
+                          HorizontalAlignment="Left">
+                        <Rectangle RadiusX="999"
+                                   RadiusY="999"
+                                   Fill="#2A7FD1" />
+                        <Rectangle Margin="12,0"
+                                   RadiusX="999"
+                                   RadiusY="999"
+                                   Fill="#72B1EA"
+                                   Opacity="0.68" />
+                    </Grid>
+                </Border>
+            </StackPanel>
+        </Border>
+    </Grid>
+</Window>

LoadingOverlayWindow.xaml.cs

@@ -0,0 +1,133 @@
+using System;
+using System.Windows;
+using System.Windows.Media.Animation;
+using System.Windows.Threading;
+
+namespace 自救器呼吸器综合检验仪
+{
+    public partial class LoadingOverlayWindow : Window
+    {
+        private static readonly TimeSpan MinimumDisplayDuration = TimeSpan.FromMilliseconds(700);
+        private static readonly TimeSpan DismissAnimationDuration = TimeSpan.FromMilliseconds(240);
+
+        private readonly DateTime _shownAtUtc;
+        private bool _closeRequested;
+
+        public LoadingOverlayWindow()
+        {
+            InitializeComponent();
+            _shownAtUtc = DateTime.UtcNow;
+        }
+
+        public void AlignTo(Window referenceWindow)
+        {
+            if (referenceWindow == null)
+            {
+                return;
+            }
+
+            WindowState = WindowState.Normal;
+
+            double width = referenceWindow.ActualWidth > 0 ? referenceWindow.ActualWidth : referenceWindow.Width;
+            double height = referenceWindow.ActualHeight > 0 ? referenceWindow.ActualHeight : referenceWindow.Height;
+
+            if (width <= 0 || height <= 0)
+            {
+                Rect restoreBounds = referenceWindow.RestoreBounds;
+                width = restoreBounds.Width > 0 ? restoreBounds.Width : width;
+                height = restoreBounds.Height > 0 ? restoreBounds.Height : height;
+            }
+
+            Left = referenceWindow.Left;
+            Top = referenceWindow.Top;
+            Width = width;
+            Height = height;
+        }
+
+        public void MatchTopmost(Window referenceWindow)
+        {
+            if (referenceWindow == null)
+            {
+                return;
+            }
+
+            Topmost = referenceWindow.Topmost;
+        }
+
+        public void SetMessage(string title, string subtitle)
+        {
+            if (!string.IsNullOrWhiteSpace(title))
+            {
+                TitleText.Text = title;
+            }
+
+            if (!string.IsNullOrWhiteSpace(subtitle))
+            {
+                SubtitleText.Text = subtitle;
+            }
+        }
+
+        public void CloseWhenReady()
+        {
+            if (_closeRequested)
+            {
+                return;
+            }
+
+            _closeRequested = true;
+            TimeSpan remaining = MinimumDisplayDuration - (DateTime.UtcNow - _shownAtUtc);
+            if (remaining <= TimeSpan.Zero)
+            {
+                CloseOverlay();
+                return;
+            }
+
+            DispatcherTimer timer = new DispatcherTimer(
+                remaining,
+                DispatcherPriority.Background,
+                OnCloseTimerTick,
+                Dispatcher);
+            timer.Start();
+        }
+
+        private void OnCloseTimerTick(object sender, EventArgs e)
+        {
+            DispatcherTimer timer = sender as DispatcherTimer;
+            if (timer != null)
+            {
+                timer.Stop();
+                timer.Tick -= OnCloseTimerTick;
+            }
+
+            CloseOverlay();
+        }
+
+        private void CloseOverlay()
+        {
+            if (Dispatcher.HasShutdownStarted || Dispatcher.HasShutdownFinished || !IsLoaded)
+            {
+                return;
+            }
+
+            DoubleAnimation fadeOutAnimation = new DoubleAnimation
+            {
+                From = Opacity,
+                To = 0,
+                Duration = new Duration(DismissAnimationDuration),
+                FillBehavior = FillBehavior.Stop
+            };
+
+            fadeOutAnimation.Completed += (sender, args) =>
+            {
+                if (Dispatcher.HasShutdownStarted || Dispatcher.HasShutdownFinished || !IsLoaded)
+                {
+                    return;
+                }
+
+                Close();
+            };
+
+            BeginAnimation(OpacityProperty, fadeOutAnimation);
+        }
+    }
+}

MainWindow.xaml

@@ -2,7 +2,7 @@
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:local="clr-namespace:自救器呼吸器综合检验仪"
-        Title="自救器呼吸器综合检验仪" Height="900" Width="1280"
+        Title="自救器呼吸器综合检验仪" Height="600" Width="1024" WindowState="Maximized"
         WindowStartupLocation="CenterScreen"
         Background="Transparent"
         FontFamily="Microsoft YaHeui" Loaded="Window_Loaded" Closed="Window_Closed" Closing="Window_Closing">
@@ -11,7 +11,7 @@
         <local:MainViewModel />
     </Window.DataContext>
 
-    
+
     <Window.Resources>
 
         <Style x:Key="LabelStyle" TargetType="TextBlock">
@@ -34,7 +34,7 @@
 
 
     </Window.Resources>
-    
+
     <!-- 背景层 -->
     <Grid>
         <!-- 背景图片 -->
@@ -69,9 +69,9 @@
                         <TextBlock Text="定量供应检验系统" 
                                    FontSize="26" FontWeight="Bold" Foreground="White"/>
                         <!--<TextBlock Text="定量供应检验系统" 
-                                   FontSize="14" Foreground="#CCFFFFFF" Margin="0,5,0,0"/>-->                 
+                                   FontSize="14" Foreground="#CCFFFFFF" Margin="0,5,0,0"/>-->
                     </StackPanel>
-                    <StackPanel Orientation="Horizontal" Margin="2" HorizontalAlignment="Center">
+                    <StackPanel Grid.Column="3" Orientation="Horizontal" Margin="2" HorizontalAlignment="Center">
                         <TextBlock Text="样品编号：" FontSize="26" FontWeight="Bold" Foreground="White" Style="{StaticResource LabelStyle}"/>
                         <TextBox x:Name="pressureDiff2" Text="" Width="180" Style="{StaticResource TextBoxStyle}" LostFocus="pressureDiff2_GotFocus"/>
 
@@ -98,7 +98,7 @@
             <!-- 主内容区域 -->
             <Grid Grid.Row="1" Margin="0,0,0,20">
                 <Grid.ColumnDefinitions>
-                    <ColumnDefinition Width="2*"/>
+                    <ColumnDefinition Width="3*"/>
                     <ColumnDefinition Width="1*"/>
                 </Grid.ColumnDefinitions>
 
@@ -113,45 +113,57 @@
                     <Border Grid.Row="0" Background="White" Margin="0,0,0,20" 
                             BorderBrush="#E1E8ED" BorderThickness="1">
                         <StackPanel Margin="30,25">
-                            
+
                             <TextBlock Text="⚙️ 参数配置" FontSize="20" FontWeight="Bold" 
                                        Foreground="#2C3E50" Margin="0,0,0,20"/>
-                            
+
 
                             <!-- 检验时间配置 -->
-                            <StackPanel Orientation="Horizontal" Margin="0,0,0,15">
+                            <Grid Margin="0,0,0,15">
-                                <TextBlock Text="检验时间：" Width="100" VerticalAlignment="Center" 
+                                <Grid.ColumnDefinitions>
+                                    <ColumnDefinition Width="100"/>
+                                    <ColumnDefinition Width="100"/>
+                                    <ColumnDefinition Width="Auto"/>
+                                    <ColumnDefinition Width="120"/>
+                                    <ColumnDefinition Width="120"/>
+                                    <ColumnDefinition Width="*"/>
+                                </Grid.ColumnDefinitions>
+                                <Grid.RowDefinitions>
+                                    <RowDefinition Height="Auto"/>
+                                    <RowDefinition Height="Auto"/>
+                                </Grid.RowDefinitions>
+                                <TextBlock Grid.Column="0" Text="检验时间：" VerticalAlignment="Center" 
                                            FontSize="14" FontWeight="SemiBold" Foreground="#2C3E50"/>
-                                <TextBox x:Name="settingtime" Text="0" Width="100" Height="35" 
+                                <TextBox Grid.Column="1" x:Name="settingtime" Text="0" Width="100" Height="35" 
                                          VerticalContentAlignment="Center" TextAlignment="Center"
                                          BorderBrush="#DCDFE6" BorderThickness="1" Background="#FAFBFC"
                                          FontSize="14" TextChanged="settingtime_TextChanged"/>
-                                <TextBlock Text="秒" Margin="15,0,40,0" VerticalAlignment="Center" 
+                                <TextBlock Grid.Column="2" Text="秒" Margin="15,0,20,0" VerticalAlignment="Center" 
                                            FontSize="14" Foreground="#7F8C8D"/>
 
                                 <Button Content="🔧 设置参数" Click="BtnWrite401_Click" 
-                                        Background="#3498DB" Foreground="White" FontSize="13" FontWeight="Bold"
+                                        Grid.Row="1" Grid.Column="0"
-                                        Width="120" Height="38" BorderThickness="0" Margin="0,0,25,0"
+                                        Background="#3498DB" Foreground="White" FontSize="13" FontWeight="Bold" Height="38" BorderThickness="0" Margin="0,12,53,0"
-                                        Cursor="Hand"/>
+                                        Cursor="Hand" Grid.ColumnSpan="2"/>
 
                                 <Button x:Name="btn_flow2" Content="定量供氧L/min" Click="BtnWrite400_Click"
-                                        Background="#3498DB" Foreground="White" FontSize="13" FontWeight="Bold"
+                                        Grid.Row="1" Grid.Column="1"
-                                        Width="120" Height="38" BorderThickness="0" Margin="0,0,25,0"
+                                        Background="#3498DB" Foreground="White" FontSize="13" FontWeight="Bold" Height="38" BorderThickness="0" Margin="91,12,8,0"
-                                        Cursor="Hand"/>
+                                        Cursor="Hand" Grid.ColumnSpan="3"/>
 
                                 <Button x:Name="btn_flow3" Content="自动/手动补给供氧(L/min)" Click="BtnWrite400_Click1"
-                Background="#3498DB" Foreground="White" FontSize="13" FontWeight="Bold"
+                Grid.Row="1" Grid.Column="4" Grid.ColumnSpan="2"
-                Width="174" Height="38" BorderThickness="0" Margin="0,0,25,0"
+                Background="#3498DB" Foreground="White" FontSize="12" FontWeight="Bold"
-                Cursor="Hand"/>
+                Height="38" BorderThickness="0" Padding="12,0" Margin="44,12,24,0" Cursor="Hand"/>
 
 
 
                                 <!--<Border Background="#F8F9FA" Padding="10,6" BorderBrush="#E1E8ED" BorderThickness="1">-->
-                                    <!--<TextBlock x:Name="label_flow" Text="0-100L/min" VerticalAlignment="Center"
+                                <!--<TextBlock x:Name="label_flow" Text="0-100L/min" VerticalAlignment="Center"
                                                FontSize="12" FontWeight="Bold" Foreground="#3498DB"/>-->
-                                    
+
                                 <!--</Border>-->
-                            </StackPanel>
+                            </Grid>
 
                             <!-- 试验时间显示 -->
                             <!--<StackPanel Orientation="Horizontal">
@@ -228,7 +240,7 @@
                                         </StackPanel>
                                     </StackPanel>
                                 </Border>
-                                
+
                             </Grid>
                         </StackPanel>
                     </Border>
@@ -306,4 +318,4 @@
             </Border>
         </Grid>
     </Grid>
-</Window>
+</Window>

MainWindow.xaml.cs

@@ -37,6 +37,10 @@ namespace 自救器呼吸器综合检验仪
         private bool _wasRunning = false; // 上次检验的运行状态
         private bool _recordAdded = false;   // 本轮测试是否已插入记录
         private DateTime _testStartTime; // 测试开始时间
+        private Button _selectedParameterButton;
+
+        private static readonly Brush ParameterButtonDefaultBrush = CreateParameterButtonBrush("#3498DB");
+        private static readonly Brush ParameterButtonSelectedBrush = CreateParameterButtonBrush("#F39C12");
 
         int retryCount = 0; // 连接失败重试次数
         private TcpClient _tcpClient => ModbusResourceManager.Instance.TcpClient;
@@ -225,6 +229,7 @@ namespace 自救器呼吸器综合检验仪
         {
             _modbusMaster.WriteSingleCoil(1, 75, true);
             isReset = true;
+            UpdateParameterButtonSelection(sender as Button);
         }
 
 
@@ -236,6 +241,39 @@ namespace 自救器呼吸器综合检验仪
             });
         }
 
+        private static Brush CreateParameterButtonBrush(string colorCode)
+        {
+            return new SolidColorBrush((Color)ColorConverter.ConvertFromString(colorCode));
+        }
+
+        private void UpdateParameterButtonSelection(Button selectedButton)
+        {
+            if (selectedButton == null)
+            {
+                return;
+            }
+
+            if (_selectedParameterButton != null && !ReferenceEquals(_selectedParameterButton, selectedButton))
+            {
+                ApplyParameterButtonStyle(_selectedParameterButton, false);
+            }
+
+            _selectedParameterButton = selectedButton;
+            ApplyParameterButtonStyle(_selectedParameterButton, true);
+        }
+
+        private void ApplyParameterButtonStyle(Button button, bool isSelected)
+        {
+            if (button == null)
+            {
+                return;
+            }
+
+            button.Background = isSelected ? ParameterButtonSelectedBrush : ParameterButtonDefaultBrush;
+            button.BorderBrush = Brushes.Transparent;
+            button.BorderThickness = new Thickness(0);
+        }
+
         private void Button_Click(object sender, RoutedEventArgs e)
         {
             //ma.BtnClickFunctionForNew(Function.ButtonType.切换型, 170);
@@ -261,22 +299,22 @@ namespace 自救器呼吸器综合检验仪
 
         private void Button_Click_4(object sender, RoutedEventArgs e)
         {
-            SwitchWindow(ref _mainWindow, () => new MainWindow());
+            SwitchWindow(ref _mainWindow, () => new MainWindow(), "正在进入定量供应检验", "正在准备定量供应检验页面...");
         }
 
         private void Button_Click_5(object sender, RoutedEventArgs e)
         {
-            SwitchWindow(ref _mainWindow2, () => new MainWindow2());
+            SwitchWindow(ref _mainWindow2, () => new MainWindow2(), "正在进入负压气密性检验", "正在切换到负压气密性检验页面...");
         }
 
         private void Button_Click_6(object sender, RoutedEventArgs e)
         {
-            SwitchWindow(ref _mainWindow3, () => new MainWindow3());
+            SwitchWindow(ref _mainWindow3, () => new MainWindow3(), "正在进入正压气密性检验", "正在切换到正压气密性检验页面...");
         }
 
         private void Button_Click_7(object sender, RoutedEventArgs e)
         {
-            SwitchWindow(ref _mainWindow4, () => new MainWindow4());
+            SwitchWindow(ref _mainWindow4, () => new MainWindow4(), "正在进入排气阀压力测试", "正在切换到排气阀压力测试页面...");
         }
 
         private void Window_Loaded(object sender, RoutedEventArgs e)
@@ -319,11 +357,6 @@ namespace 自救器呼吸器综合检验仪
 
             pressureDiff2.Text = ConfigurationManager.AppSettings["No"]?.ToString();
 
-
-            string imagePath = System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Resources/sleep2.jpg");
-            ImageBrush brush = new ImageBrush();
-            brush.ImageSource = new BitmapImage(new Uri(imagePath, UriKind.Absolute));
-            this.Background = brush;
         }
 
         private void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e)
@@ -340,18 +373,12 @@ namespace 自救器呼吸器综合检验仪
             // 释放Modbus资源
             ModbusResourceManager.Instance?.Dispose();
 
-            // 确保应用程序完全退出
+            // 延后到当前窗口完成关闭后再统一关停，避免关闭重入。
-            Application.Current.Shutdown();
+            AppShutdownCoordinator.RequestShutdown();
         }
         private void Window_Closed(object sender, EventArgs e)
         {
-            // 清理其他窗口实例
+            // 由应用级关停统一处理其他窗口，避免关闭链路重入。
-            //_mainWindow?.Close();
-            _mainWindow2?.Close();
-            _mainWindow3?.Close();
-            _mainWindow4?.Close();
-            _mainWindow5?.Close();
-            _reportWindow?.Close();
         }
         private void BtnWrite401_Click(object sender, RoutedEventArgs e)
         {
@@ -373,6 +400,7 @@ namespace 自救器呼吸器综合检验仪
 
                 System.Threading.Tasks.Task.Delay(50);
                 _isManualInput = false; // 写入后恢复读取
+                UpdateParameterButtonSelection(sender as Button);
                 //await ReadAddr400DataAsync(); // 刷新显示（确认写入成功）
 
             }
@@ -382,7 +410,7 @@ namespace 自救器呼吸器综合检验仪
             }
         }
 
-        private void SwitchWindow<T>(ref T windowInstance, Func<T> createFunc) where T : Window, new()
+        private void SwitchWindow<T>(ref T windowInstance, Func<T> createFunc, string loadingTitle = null, string loadingSubtitle = null) where T : Window, new()
         {
             // 1. 停止当前窗口的定时器（不释放资源）
             _readTimer?.Stop();
@@ -406,22 +434,12 @@ namespace 自救器呼吸器综合检验仪
                 // 添加窗口关闭事件处理
                 windowInstance.Closed += (s, args) =>
                 {
-                    // 窗口关闭时重新启动定时器并显示当前窗口
+                    WindowNavigationHelper.RestoreWindow(this, () => _readTimer?.Start());
-                    _readTimer?.Start();
-                    //this.Show();
-                    this.Activate();
                 };
             }
-            else
-            {
-                // 激活已存在的窗口（前置显示）
-                windowInstance.Activate();
-                //return;
-            }
 
-            // 4. 切换窗口：隐藏当前窗口，显示目标窗口（非模态）
+            // 4. 目标窗口完成首帧渲染后再切换，避免白屏
-            this.Hide();
+            WindowNavigationHelper.ShowWithoutWhiteFlash(this, windowInstance, loadingTitle, loadingSubtitle);
-            windowInstance.Show(); // 使用 Show() 而不是 ShowDialog()
         }
 
         // 添加重连方法
@@ -572,6 +590,7 @@ namespace 自救器呼吸器综合检验仪
         {
             _modbusMaster.WriteSingleCoil(1, 75, false);
             isReset = false;
+            UpdateParameterButtonSelection(sender as Button);
         }
 
         //private void pressureDiff2_GotFocus(object sender, RoutedEventArgs e)

MainWindow2.xaml

@@ -2,7 +2,7 @@
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:local="clr-namespace:自救器呼吸器综合检验仪"
-        Title="自救器呼吸器综合检验仪" Height="900" Width="1280"
+        Title="自救器呼吸器综合检验仪" Height="600" Width="1024" WindowState="Maximized"
         WindowStartupLocation="CenterScreen"
         Background="Transparent"
         FontFamily="Microsoft YaHeui"  Loaded="Window_Loaded" Closed="Window_Closed" Closing="Window_Closing">
@@ -339,4 +339,4 @@
             </Border>
         </Grid>
     </Grid>
-</Window>
+</Window>

MainWindow2.xaml.cs

@@ -419,22 +419,22 @@ namespace 自救器呼吸器综合检验仪
 
         private void Button_Click_4(object sender, RoutedEventArgs e)
         {
-            SwitchWindow(ref _mainWindow, () => new MainWindow());
+            SwitchWindow(ref _mainWindow, () => new MainWindow(), "正在进入定量供应检验", "正在准备定量供应检验页面...");
         }
 
         private void Button_Click_5(object sender, RoutedEventArgs e)
         {
-            SwitchWindow(ref _mainWindow2, () => new MainWindow2());
+            SwitchWindow(ref _mainWindow2, () => new MainWindow2(), "正在进入负压气密性检验", "正在切换到负压气密性检验页面...");
         }
 
         private void Button_Click_6(object sender, RoutedEventArgs e)
         {
-            SwitchWindow(ref _mainWindow3, () => new MainWindow3());
+            SwitchWindow(ref _mainWindow3, () => new MainWindow3(), "正在进入正压气密性检验", "正在切换到正压气密性检验页面...");
         }
 
         private void Button_Click_7(object sender, RoutedEventArgs e)
         {
-            SwitchWindow(ref _mainWindow4, () => new MainWindow4());
+            SwitchWindow(ref _mainWindow4, () => new MainWindow4(), "正在进入排气阀压力测试", "正在切换到排气阀压力测试页面...");
         }
 
 
@@ -476,7 +476,7 @@ namespace 自救器呼吸器综合检验仪
         }
 
 
-        private void SwitchWindow<T>(ref T windowInstance, Func<T> createFunc) where T : Window, new()
+        private void SwitchWindow<T>(ref T windowInstance, Func<T> createFunc, string loadingTitle = null, string loadingSubtitle = null) where T : Window, new()
         {
             // 1. 停止当前窗口的定时器（不释放资源）
             _readTimer?.Stop();
@@ -500,22 +500,12 @@ namespace 自救器呼吸器综合检验仪
                 // 添加窗口关闭事件处理
                 windowInstance.Closed += (s, args) =>
                 {
-                    // 窗口关闭时重新启动定时器并显示当前窗口
+                    WindowNavigationHelper.RestoreWindow(this, () => _readTimer?.Start());
-                    _readTimer?.Start();
-                    //this.Show();
-                    this.Activate();
                 };
             }
-            else
-            {
-                // 激活已存在的窗口（前置显示）
-                windowInstance.Activate();
-                //return;
-            }
 
-            // 4. 切换窗口：隐藏当前窗口，显示目标窗口（非模态）
+            // 4. 目标窗口完成首帧渲染后再切换，避免白屏
-            this.Hide();
+            WindowNavigationHelper.ShowWithoutWhiteFlash(this, windowInstance, loadingTitle, loadingSubtitle);
-            windowInstance.Show(); // 使用 Show() 而不是 ShowDialog()
         }
         // 添加重连方法
         private bool TryReconnect()
@@ -668,17 +658,12 @@ namespace 自救器呼吸器综合检验仪
             // 释放Modbus资源
             ModbusResourceManager.Instance?.Dispose();
 
-            // 确保应用程序完全退出
+            // 延后到当前窗口完成关闭后再统一关停，避免关闭重入。
-            Application.Current.Shutdown();
+            AppShutdownCoordinator.RequestShutdown();
         }
         private void Window_Closed(object sender, EventArgs e)
         {
-            // 清理其他窗口实例
+            // 由应用级关停统一处理其他窗口，避免关闭链路重入。
-            //_mainWindow2?.Close();
-            _mainWindow3?.Close();
-            _mainWindow4?.Close();
-            _mainWindow?.Close();
-            _reportWindow2?.Close();
         }
 
         //private void number_GotFocus(object sender, RoutedEventArgs e)

MainWindow3.xaml

@@ -2,7 +2,7 @@
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:local="clr-namespace:自救器呼吸器综合检验仪"
-        Title="自救器呼吸器综合检验仪" Height="900" Width="1280"
+        Title="自救器呼吸器综合检验仪" Height="600" Width="1024" WindowState="Maximized"
         WindowStartupLocation="CenterScreen"
         Background="Transparent"
         FontFamily="Microsoft YaHeui"
@@ -310,4 +310,4 @@
             </Border>
         </Grid>
     </Grid>
-</Window>
+</Window>

MainWindow3.xaml.cs

@@ -394,22 +394,22 @@ namespace 自救器呼吸器综合检验仪
 
         private void Button_Click_4(object sender, RoutedEventArgs e)
         {
-            SwitchWindow(ref _mainWindow, () => new MainWindow());
+            SwitchWindow(ref _mainWindow, () => new MainWindow(), "正在进入定量供应检验", "正在准备定量供应检验页面...");
         }
 
         private void Button_Click_5(object sender, RoutedEventArgs e)
         {
-            SwitchWindow(ref _mainWindow2, () => new MainWindow2());
+            SwitchWindow(ref _mainWindow2, () => new MainWindow2(), "正在进入负压气密性检验", "正在切换到负压气密性检验页面...");
         }
 
         private void Button_Click_6(object sender, RoutedEventArgs e)
         {
-            SwitchWindow(ref _mainWindow3, () => new MainWindow3());
+            SwitchWindow(ref _mainWindow3, () => new MainWindow3(), "正在进入正压气密性检验", "正在切换到正压气密性检验页面...");
         }
 
         private void Button_Click_7(object sender, RoutedEventArgs e)
         {
-            SwitchWindow(ref _mainWindow4, () => new MainWindow4());
+            SwitchWindow(ref _mainWindow4, () => new MainWindow4(), "正在进入排气阀压力测试", "正在切换到排气阀压力测试页面...");
         }
 
         private void Window_Loaded(object sender, RoutedEventArgs e)
@@ -449,7 +449,7 @@ namespace 自救器呼吸器综合检验仪
             System.Threading.Tasks.Task.Delay(50);
         }
 
-        private void SwitchWindow<T>(ref T windowInstance, Func<T> createFunc) where T : Window, new()
+        private void SwitchWindow<T>(ref T windowInstance, Func<T> createFunc, string loadingTitle = null, string loadingSubtitle = null) where T : Window, new()
         {
             // 1. 停止当前窗口的定时器（不释放资源）
             _readTimer?.Stop();
@@ -473,22 +473,12 @@ namespace 自救器呼吸器综合检验仪
                 // 添加窗口关闭事件处理
                 windowInstance.Closed += (s, args) =>
                 {
-                    // 窗口关闭时重新启动定时器并显示当前窗口
+                    WindowNavigationHelper.RestoreWindow(this, () => _readTimer?.Start());
-                    _readTimer?.Start();
-                    //this.Show();
-                    this.Activate();
                 };
             }
-            else
-            {
-                // 激活已存在的窗口（前置显示）
-                windowInstance.Activate();
-                //return;
-            }
 
-            // 4. 切换窗口：隐藏当前窗口，显示目标窗口（非模态）
+            // 4. 目标窗口完成首帧渲染后再切换，避免白屏
-            this.Hide();
+            WindowNavigationHelper.ShowWithoutWhiteFlash(this, windowInstance, loadingTitle, loadingSubtitle);
-            windowInstance.Show(); // 使用 Show() 而不是 ShowDialog()
         }
         // 添加重连方法
         private bool TryReconnect()
@@ -671,17 +661,12 @@ namespace 自救器呼吸器综合检验仪
             // 释放Modbus资源
             ModbusResourceManager.Instance?.Dispose();
 
-            // 确保应用程序完全退出
+            // 延后到当前窗口完成关闭后再统一关停，避免关闭重入。
-            Application.Current.Shutdown();
+            AppShutdownCoordinator.RequestShutdown();
         }
         private void Window_Closed(object sender, EventArgs e)
         {
-            // 清理其他窗口实例
+            // 由应用级关停统一处理其他窗口，避免关闭链路重入。
-            _mainWindow?.Close();
-            _mainWindow2?.Close();
-            //_mainWindow3?.Close();
-            _mainWindow4?.Close();
-            _reportWindow3?.Close();
         }
     }
 }

MainWindow4.xaml

@@ -2,7 +2,7 @@
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:local="clr-namespace:自救器呼吸器综合检验仪"
-        Title="自救器呼吸器综合检验仪" Height="900" Width="1280"
+        Title="自救器呼吸器综合检验仪" Height="600" Width="1024" WindowState="Maximized"
         WindowStartupLocation="CenterScreen"
         Background="Transparent"
         FontFamily="Microsoft YaHeui"
@@ -226,4 +226,4 @@
             </Border>
         </Grid>
     </Grid>
-</Window>
+</Window>

MainWindow4.xaml.cs

@@ -238,22 +238,22 @@ namespace 自救器呼吸器综合检验仪
 
         private void Button_Click_4(object sender, RoutedEventArgs e)
         {
-            SwitchWindow(ref _mainWindow, () => new MainWindow());
+            SwitchWindow(ref _mainWindow, () => new MainWindow(), "正在进入定量供应检验", "正在准备定量供应检验页面...");
         }
 
         private void Button_Click_5(object sender, RoutedEventArgs e)
         {
-            SwitchWindow(ref _mainWindow2, () => new MainWindow2());
+            SwitchWindow(ref _mainWindow2, () => new MainWindow2(), "正在进入负压气密性检验", "正在切换到负压气密性检验页面...");
         }
 
         private void Button_Click_6(object sender, RoutedEventArgs e)
         {
-            SwitchWindow(ref _mainWindow3, () => new MainWindow3());
+            SwitchWindow(ref _mainWindow3, () => new MainWindow3(), "正在进入正压气密性检验", "正在切换到正压气密性检验页面...");
         }
 
         private void Button_Click_7(object sender, RoutedEventArgs e)
         {
-            SwitchWindow(ref _mainWindow4, () => new MainWindow4());
+            SwitchWindow(ref _mainWindow4, () => new MainWindow4(), "正在进入排气阀压力测试", "正在切换到排气阀压力测试页面...");
         }
 
         private void Window_Loaded(object sender, RoutedEventArgs e)
@@ -294,7 +294,7 @@ namespace 自救器呼吸器综合检验仪
         }
 
 
-        private void SwitchWindow<T>(ref T windowInstance, Func<T> createFunc) where T : Window, new()
+        private void SwitchWindow<T>(ref T windowInstance, Func<T> createFunc, string loadingTitle = null, string loadingSubtitle = null) where T : Window, new()
         {
             // 1. 停止当前窗口的定时器（不释放资源）
             _readTimer?.Stop();
@@ -318,22 +318,12 @@ namespace 自救器呼吸器综合检验仪
                 // 添加窗口关闭事件处理
                 windowInstance.Closed += (s, args) =>
                 {
-                    // 窗口关闭时重新启动定时器并显示当前窗口
+                    WindowNavigationHelper.RestoreWindow(this, () => _readTimer?.Start());
-                    _readTimer?.Start();
-                    //this.Show();
-                    this.Activate();
                 };
             }
-            else
-            {
-                // 激活已存在的窗口（前置显示）
-                windowInstance.Activate();
-                //return;
-            }
 
-            // 4. 切换窗口：隐藏当前窗口，显示目标窗口（非模态）
+            // 4. 目标窗口完成首帧渲染后再切换，避免白屏
-            this.Hide();
+            WindowNavigationHelper.ShowWithoutWhiteFlash(this, windowInstance, loadingTitle, loadingSubtitle);
-            windowInstance.Show(); // 使用 Show() 而不是 ShowDialog()
         }
         private bool TryReconnect()
         {
@@ -505,17 +495,12 @@ namespace 自救器呼吸器综合检验仪
             // 释放Modbus资源
             ModbusResourceManager.Instance?.Dispose();
 
-            // 确保应用程序完全退出
+            // 延后到当前窗口完成关闭后再统一关停，避免关闭重入。
-            Application.Current.Shutdown();
+            AppShutdownCoordinator.RequestShutdown();
         }
         private void Window_Closed(object sender, EventArgs e)
         {
-            // 清理其他窗口实例
+            // 由应用级关停统一处理其他窗口，避免关闭链路重入。
-            _mainWindow2?.Close();
-            _mainWindow3?.Close();
-            //_mainWindow4?.Close();
-            _mainWindow?.Close();
-            _reportWindow4?.Close();
         }
     }
 }

ParameterSettingsWindow.xaml

@@ -1,7 +1,7 @@
 <Window x:Class="自救器呼吸器综合检验仪.ParameterSettingsWindow"
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-        Title="参数设置" Height="768" Width="1024"
+        Title="参数设置" Height="600" Width="1024" WindowState="Maximized"
         WindowStartupLocation="CenterScreen"
         ResizeMode="NoResize" Loaded="Window_Loaded" Closed="Window_Closed" Closing="Window_Closing">
 
@@ -307,4 +307,4 @@
             </StackPanel>
         </Border>
     </Grid>
-</Window>
+</Window>

ParameterSettingsWindow.xaml.cs

@@ -140,22 +140,16 @@ namespace 自救器呼吸器综合检验仪
                 // 添加窗口关闭事件处理
                 windowInstance.Closed += (s, args) =>
                 {
-                    // 窗口关闭时重新启动定时器并显示当前窗口
+                    WindowNavigationHelper.RestoreWindow(this, () => _readTimer?.Start());
-                    _readTimer?.Start();
-                    this.Show();
-                    this.Activate();
                 };
             }
             else
             {
-                // 激活已存在的窗口（前置显示）
+                WindowNavigationHelper.ShowWithoutWhiteFlash(this, windowInstance);
-                windowInstance.Activate();
                 return;
             }
 
-            // 4. 切换窗口：隐藏当前窗口，显示目标窗口（非模态）
+            WindowNavigationHelper.ShowWithoutWhiteFlash(this, windowInstance);
-            this.Hide();
-            windowInstance.Show(); // 使用 Show() 而不是 ShowDialog()
         }
 
 
@@ -488,18 +482,12 @@ _modbusMaster?.ReadHoldingRegisters(1, 290, 2)
             // 释放Modbus资源
             ModbusResourceManager.Instance?.Dispose();
 
-            // 确保应用程序完全退出
+            // 延后到当前窗口完成关闭后再统一关停，避免关闭重入。
-            Application.Current.Shutdown();
+            AppShutdownCoordinator.RequestShutdown();
         }
         private void Window_Closed(object sender, EventArgs e)
         {
-            // 清理其他窗口实例
+            // 由应用级关停统一处理其他窗口，避免关闭链路重入。
-            _mainWindow?.Close();
-            _mainWindow2?.Close();
-            _mainWindow3?.Close();
-            //_mainWindow4?.Close();
-
-            _mainWindow4?.Close();
         }
         // 重置为默认值
         private void ResetToDefaults()
@@ -789,4 +777,4 @@ _modbusMaster?.ReadHoldingRegisters(1, 290, 2)
             }
         }
     }
-}
+}

ReportWindow.xaml

@@ -1,7 +1,7 @@
 <Window x:Class="自救器呼吸器综合检验仪.ReportWindow"
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-        Title="定量供氧检验报表" Height="900" Width="1280"
+        Title="定量供氧检验报表" Height="600" Width="1024" WindowState="Maximized"
         WindowStartupLocation="CenterScreen" Loaded="Window_Loaded" Closed="Window_Closed" Closing="Window_Closing" >
     <Grid>
         <Grid.RowDefinitions>
@@ -42,4 +42,4 @@
         Width="100" Height="30" Margin="5" Background="#FF4CAF50" Foreground="White"/>
         </StackPanel>
     </Grid>
-</Window>
+</Window>

ReportWindow.xaml.cs

@@ -218,14 +218,12 @@ namespace 自救器呼吸器综合检验仪
             // 释放Modbus资源
             ModbusResourceManager.Instance?.Dispose();
 
-            // 确保应用程序完全退出
+            // 延后到当前窗口完成关闭后再统一关停，避免关闭重入。
-            Application.Current.Shutdown();
+            AppShutdownCoordinator.RequestShutdown();
         }
         private void Window_Closed(object sender, EventArgs e)
         {
-
+            // 由应用级关停统一处理其他窗口，避免关闭链路重入。
-            //_mainWindow4?.Close();
-            _mainWindow?.Close();
         }
 
         private void BtnPrint_Click(object sender, RoutedEventArgs e)
@@ -274,22 +272,16 @@ namespace 自救器呼吸器综合检验仪
                 // 添加窗口关闭事件处理
                 windowInstance.Closed += (s, args) =>
                 {
-                    // 窗口关闭时重新启动定时器并显示当前窗口
+                    WindowNavigationHelper.RestoreWindow(this);
-
-                    this.Show();
-                    this.Activate();
                 };
             }
             else
             {
-                // 激活已存在的窗口（前置显示）
+                WindowNavigationHelper.ShowWithoutWhiteFlash(this, windowInstance);
-                windowInstance.Activate();
                 return;
             }
 
-            // 4. 切换窗口：隐藏当前窗口，显示目标窗口（非模态）
+            WindowNavigationHelper.ShowWithoutWhiteFlash(this, windowInstance);
-            this.Hide();
-            windowInstance.Show(); // 使用 Show() 而不是 ShowDialog()
         }
 
         private void BtnClose_Click(object sender, RoutedEventArgs e)
@@ -297,4 +289,4 @@ namespace 自救器呼吸器综合检验仪
             SwitchWindow(ref _mainWindow, () => new MainWindow());
         }
     }
-}
+}

ReportWindow2.xaml

@@ -1,7 +1,7 @@
 <Window x:Class="自救器呼吸器综合检验仪.ReportWindow2"
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-        Title="负压气密性检验报表" Height="900" Width="1280"
+        Title="负压气密性检验报表" Height="600" Width="1024" WindowState="Maximized"
         WindowStartupLocation="CenterScreen" Loaded="Window_Loaded" Closed="Window_Closed" Closing="Window_Closing">
     <Grid>
         <Grid.RowDefinitions>
@@ -43,4 +43,4 @@
 Width="100" Height="30" Margin="5" Background="#FF4CAF50" Foreground="White"/>
         </StackPanel>
     </Grid>
-</Window>
+</Window>

ReportWindow2.xaml.cs

@@ -232,14 +232,12 @@ namespace 自救器呼吸器综合检验仪
             // 释放Modbus资源
             ModbusResourceManager.Instance?.Dispose();
 
-            // 确保应用程序完全退出
+            // 延后到当前窗口完成关闭后再统一关停，避免关闭重入。
-            Application.Current.Shutdown();
+            AppShutdownCoordinator.RequestShutdown();
         }
         private void Window_Closed(object sender, EventArgs e)
         {
-
+            // 由应用级关停统一处理其他窗口，避免关闭链路重入。
-            //_mainWindow4?.Close();
-            _reportWindow2?.Close();
         }
 
         //private void BtnClose_Click(object sender, RoutedEventArgs e)
@@ -294,22 +292,16 @@ namespace 自救器呼吸器综合检验仪
                 // 添加窗口关闭事件处理
                 windowInstance.Closed += (s, args) =>
                 {
-                    // 窗口关闭时重新启动定时器并显示当前窗口
+                    WindowNavigationHelper.RestoreWindow(this);
-
-                    this.Show();
-                    this.Activate();
                 };
             }
             else
             {
-                // 激活已存在的窗口（前置显示）
+                WindowNavigationHelper.ShowWithoutWhiteFlash(this, windowInstance);
-                windowInstance.Activate();
                 return;
             }
 
-            // 4. 切换窗口：隐藏当前窗口，显示目标窗口（非模态）
+            WindowNavigationHelper.ShowWithoutWhiteFlash(this, windowInstance);
-            this.Hide();
-            windowInstance.Show(); // 使用 Show() 而不是 ShowDialog()
         }
 
         private void BtnClose_Click(object sender, RoutedEventArgs e)
@@ -317,4 +309,4 @@ namespace 自救器呼吸器综合检验仪
             SwitchWindow(ref _mainWindow2, () => new MainWindow2());
         }
     }
-}
+}

ReportWindow3.xaml

@@ -1,7 +1,7 @@
 <Window x:Class="自救器呼吸器综合检验仪.ReportWindow3"
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-        Title="正压气密性检验报表" Height="900" Width="1280"
+        Title="正压气密性检验报表" Height="600" Width="1024" WindowState="Maximized"
         WindowStartupLocation="CenterScreen" Loaded="Window_Loaded" Closed="Window_Closed" Closing="Window_Closing">
     <Grid>
         <Grid.RowDefinitions>
@@ -43,4 +43,4 @@
 Width="100" Height="30" Margin="5" Background="#FF4CAF50" Foreground="White"/>
         </StackPanel>
     </Grid>
-</Window>
+</Window>

ReportWindow3.xaml.cs

@@ -230,14 +230,12 @@ namespace 自救器呼吸器综合检验仪
             // 释放Modbus资源
             ModbusResourceManager.Instance?.Dispose();
 
-            // 确保应用程序完全退出
+            // 延后到当前窗口完成关闭后再统一关停，避免关闭重入。
-            Application.Current.Shutdown();
+            AppShutdownCoordinator.RequestShutdown();
         }
         private void Window_Closed(object sender, EventArgs e)
         {
-
+            // 由应用级关停统一处理其他窗口，避免关闭链路重入。
-            //_mainWindow4?.Close();
-            _reportWindow3?.Close();
         }
 
         //private void BtnClose_Click(object sender, RoutedEventArgs e)
@@ -292,22 +290,16 @@ namespace 自救器呼吸器综合检验仪
                 // 添加窗口关闭事件处理
                 windowInstance.Closed += (s, args) =>
                 {
-                    // 窗口关闭时重新启动定时器并显示当前窗口
+                    WindowNavigationHelper.RestoreWindow(this);
-
-                    this.Show();
-                    this.Activate();
                 };
             }
             else
             {
-                // 激活已存在的窗口（前置显示）
+                WindowNavigationHelper.ShowWithoutWhiteFlash(this, windowInstance);
-                windowInstance.Activate();
                 return;
             }
 
-            // 4. 切换窗口：隐藏当前窗口，显示目标窗口（非模态）
+            WindowNavigationHelper.ShowWithoutWhiteFlash(this, windowInstance);
-            this.Hide();
-            windowInstance.Show(); // 使用 Show() 而不是 ShowDialog()
         }
 
         private void BtnClose_Click(object sender, RoutedEventArgs e)
@@ -316,4 +308,4 @@ namespace 自救器呼吸器综合检验仪
         }
 
     }
-}
+}

ReportWindow4.xaml

@@ -1,7 +1,7 @@
 <Window x:Class="自救器呼吸器综合检验仪.ReportWindow4"
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-        Title="排气阀检验报表" Height="900" Width="1280"
+        Title="排气阀检验报表" Height="600" Width="1024" WindowState="Maximized"
         WindowStartupLocation="CenterScreen" Loaded="Window_Loaded" Closed="Window_Closed" Closing="Window_Closing" >
     <Grid>
         <Grid.RowDefinitions>
@@ -40,4 +40,4 @@
 Width="100" Height="30" Margin="5" Background="#FF4CAF50" Foreground="White"/>
         </StackPanel>
     </Grid>
-</Window>
+</Window>

ReportWindow4.xaml.cs

@@ -271,14 +271,12 @@ namespace 自救器呼吸器综合检验仪
             // 释放Modbus资源
             ModbusResourceManager.Instance?.Dispose();
 
-            // 确保应用程序完全退出
+            // 延后到当前窗口完成关闭后再统一关停，避免关闭重入。
-            Application.Current.Shutdown();
+            AppShutdownCoordinator.RequestShutdown();
         }
         private void Window_Closed(object sender, EventArgs e)
         {
-
+            // 由应用级关停统一处理其他窗口，避免关闭链路重入。
-            //_mainWindow4?.Close();
-            _reportWindow4?.Close();
         }
 
         //private void BtnClose_Click(object sender, RoutedEventArgs e)
@@ -333,22 +331,16 @@ namespace 自救器呼吸器综合检验仪
                 // 添加窗口关闭事件处理
                 windowInstance.Closed += (s, args) =>
                 {
-                    // 窗口关闭时重新启动定时器并显示当前窗口
+                    WindowNavigationHelper.RestoreWindow(this);
-
-                    this.Show();
-                    this.Activate();
                 };
             }
             else
             {
-                // 激活已存在的窗口（前置显示）
+                WindowNavigationHelper.ShowWithoutWhiteFlash(this, windowInstance);
-                windowInstance.Activate();
                 return;
             }
 
-            // 4. 切换窗口：隐藏当前窗口，显示目标窗口（非模态）
+            WindowNavigationHelper.ShowWithoutWhiteFlash(this, windowInstance);
-            this.Hide();
-            windowInstance.Show(); // 使用 Show() 而不是 ShowDialog()
         }
 
         private void BtnClose_Click(object sender, RoutedEventArgs e)
@@ -357,4 +349,4 @@ namespace 自救器呼吸器综合检验仪
         }
 
     }
-}
+}

WindowNavigationHelper.cs

@@ -0,0 +1,257 @@
+using System;
+using System.Windows;
+using System.Windows.Media;
+using System.Windows.Media.Animation;
+using System.Windows.Threading;
+
+namespace 自救器呼吸器综合检验仪
+{
+    internal static class WindowNavigationHelper
+    {
+        private const string SlideTransformResourceKey = "__WindowNavigationHelperSlideTransform";
+        private static readonly TimeSpan TargetFadeDuration = TimeSpan.FromMilliseconds(420);
+        private static readonly TimeSpan ContentSlideDuration = TimeSpan.FromMilliseconds(360);
+        private static readonly CubicEase SlideEase = new CubicEase { EasingMode = EasingMode.EaseOut };
+
+        public static void ShowWithoutWhiteFlash(Window currentWindow, Window targetWindow, string loadingTitle = null, string loadingSubtitle = null)
+        {
+            if (!CanInteractWith(currentWindow) || !CanInteractWith(targetWindow))
+            {
+                return;
+            }
+
+            ApplyWindowPlacement(currentWindow, targetWindow);
+            PrepareTargetWindowForReveal(targetWindow);
+
+            if (targetWindow.IsVisible)
+            {
+                RevealTargetWindow(currentWindow, targetWindow, null);
+                return;
+            }
+
+            LoadingOverlayWindow loadingOverlay = ShowLoadingOverlay(currentWindow, loadingTitle, loadingSubtitle);
+
+            if (targetWindow.IsLoaded)
+            {
+                targetWindow.Show();
+                targetWindow.Dispatcher.BeginInvoke(
+                    DispatcherPriority.ContextIdle,
+                    new Action(() => RevealTargetWindow(currentWindow, targetWindow, loadingOverlay)));
+                return;
+            }
+
+            EventHandler contentRenderedHandler = null;
+            contentRenderedHandler = (sender, args) =>
+            {
+                targetWindow.ContentRendered -= contentRenderedHandler;
+                RevealTargetWindow(currentWindow, targetWindow, loadingOverlay);
+            };
+
+            targetWindow.ContentRendered += contentRenderedHandler;
+            targetWindow.Show();
+        }
+
+        public static void RestoreWindow(Window windowToRestore, Action beforeRestore = null)
+        {
+            if (!CanInteractWith(windowToRestore))
+            {
+                return;
+            }
+
+            beforeRestore?.Invoke();
+
+            if (!windowToRestore.IsVisible)
+            {
+                windowToRestore.Show();
+            }
+
+            windowToRestore.Activate();
+        }
+
+        private static void ApplyWindowPlacement(Window currentWindow, Window targetWindow)
+        {
+            targetWindow.WindowStartupLocation = WindowStartupLocation.Manual;
+            targetWindow.WindowState = currentWindow.WindowState;
+
+            if (currentWindow.WindowState != WindowState.Normal)
+            {
+                return;
+            }
+
+            targetWindow.Left = currentWindow.Left;
+            targetWindow.Top = currentWindow.Top;
+            targetWindow.Width = currentWindow.ActualWidth > 0 ? currentWindow.ActualWidth : currentWindow.Width;
+            targetWindow.Height = currentWindow.ActualHeight > 0 ? currentWindow.ActualHeight : currentWindow.Height;
+        }
+
+        private static void PrepareTargetWindowForReveal(Window targetWindow)
+        {
+            targetWindow.Opacity = 0;
+
+            FrameworkElement contentRoot = targetWindow.Content as FrameworkElement;
+            if (contentRoot == null)
+            {
+                return;
+            }
+
+            TranslateTransform slideTransform = GetOrCreateSlideTransform(contentRoot);
+            slideTransform.X = 72;
+            contentRoot.Opacity = 0.9;
+        }
+
+        private static void RevealTargetWindow(Window currentWindow, Window targetWindow, LoadingOverlayWindow loadingOverlay)
+        {
+            if (!CanInteractWith(currentWindow) || !CanInteractWith(targetWindow))
+            {
+                CloseLoadingOverlay(loadingOverlay);
+                return;
+            }
+
+            currentWindow.Hide();
+            AnimateTargetWindow(targetWindow);
+            targetWindow.Activate();
+            targetWindow.Dispatcher.BeginInvoke(
+                DispatcherPriority.ContextIdle,
+                new Action(() => CloseLoadingOverlay(loadingOverlay)));
+        }
+
+        private static LoadingOverlayWindow ShowLoadingOverlay(Window currentWindow, string loadingTitle, string loadingSubtitle)
+        {
+            if (!CanInteractWith(currentWindow))
+            {
+                return null;
+            }
+
+            LoadingOverlayWindow loadingOverlay = new LoadingOverlayWindow();
+            loadingOverlay.AlignTo(currentWindow);
+            loadingOverlay.MatchTopmost(currentWindow);
+            loadingOverlay.SetMessage(
+                loadingTitle ?? "正在切换检测页面",
+                loadingSubtitle ?? "正在加载页面资源和设备状态，请稍候...");
+            loadingOverlay.Show();
+            return loadingOverlay;
+        }
+
+        private static void CloseLoadingOverlay(LoadingOverlayWindow loadingOverlay)
+        {
+            if (loadingOverlay == null)
+            {
+                return;
+            }
+
+            if (loadingOverlay.Dispatcher.HasShutdownStarted || loadingOverlay.Dispatcher.HasShutdownFinished)
+            {
+                return;
+            }
+
+            if (!loadingOverlay.IsLoaded)
+            {
+                return;
+            }
+
+            loadingOverlay.CloseWhenReady();
+        }
+
+        private static void AnimateTargetWindow(Window targetWindow)
+        {
+            if (targetWindow == null || targetWindow.Dispatcher.HasShutdownStarted || targetWindow.Dispatcher.HasShutdownFinished)
+            {
+                return;
+            }
+
+            DoubleAnimation fadeInAnimation = new DoubleAnimation
+            {
+                From = targetWindow.Opacity,
+                To = 1,
+                Duration = new Duration(TargetFadeDuration),
+                FillBehavior = FillBehavior.HoldEnd
+            };
+            targetWindow.BeginAnimation(UIElement.OpacityProperty, fadeInAnimation);
+
+            FrameworkElement contentRoot = targetWindow.Content as FrameworkElement;
+            if (contentRoot == null)
+            {
+                return;
+            }
+
+            TranslateTransform slideTransform = GetOrCreateSlideTransform(contentRoot);
+            DoubleAnimation slideAnimation = new DoubleAnimation
+            {
+                From = slideTransform.X,
+                To = 0,
+                Duration = new Duration(ContentSlideDuration),
+                EasingFunction = SlideEase,
+                FillBehavior = FillBehavior.HoldEnd
+            };
+            slideTransform.BeginAnimation(TranslateTransform.XProperty, slideAnimation);
+
+            DoubleAnimation contentFadeAnimation = new DoubleAnimation
+            {
+                From = contentRoot.Opacity,
+                To = 1,
+                Duration = new Duration(ContentSlideDuration),
+                EasingFunction = SlideEase,
+                FillBehavior = FillBehavior.HoldEnd
+            };
+            contentRoot.BeginAnimation(UIElement.OpacityProperty, contentFadeAnimation);
+        }
+
+        private static TranslateTransform GetOrCreateSlideTransform(FrameworkElement contentRoot)
+        {
+            if (contentRoot.Resources[SlideTransformResourceKey] is TranslateTransform cachedTransform)
+            {
+                return cachedTransform;
+            }
+
+            TranslateTransform slideTransform = null;
+            Transform renderTransform = contentRoot.RenderTransform;
+
+            if (renderTransform is TranslateTransform existingTranslate)
+            {
+                slideTransform = existingTranslate;
+            }
+            else if (renderTransform is TransformGroup existingGroup)
+            {
+                foreach (Transform child in existingGroup.Children)
+                {
+                    if (child is TranslateTransform childTranslate)
+                    {
+                        slideTransform = childTranslate;
+                        break;
+                    }
+                }
+
+                if (slideTransform == null)
+                {
+                    slideTransform = new TranslateTransform();
+                    existingGroup.Children.Add(slideTransform);
+                }
+            }
+            else if (renderTransform == null || renderTransform == Transform.Identity || renderTransform.Value.IsIdentity)
+            {
+                slideTransform = new TranslateTransform();
+                contentRoot.RenderTransform = slideTransform;
+            }
+            else
+            {
+                TransformGroup transformGroup = new TransformGroup();
+                transformGroup.Children.Add(renderTransform);
+                slideTransform = new TranslateTransform();
+                transformGroup.Children.Add(slideTransform);
+                contentRoot.RenderTransform = transformGroup;
+            }
+
+            contentRoot.RenderTransformOrigin = new Point(0.5, 0.5);
+            contentRoot.Resources[SlideTransformResourceKey] = slideTransform;
+            return slideTransform;
+        }
+
+        private static bool CanInteractWith(Window window)
+        {
+            return window != null
+                && !AppShutdownCoordinator.IsShutdownInProgress
+                && !window.Dispatcher.HasShutdownStarted
+                && !window.Dispatcher.HasShutdownFinished;
+        }
+    }
+}

自救器呼吸器综合检验仪.csproj

@@ -152,6 +152,9 @@
     <Compile Include="DetectionMenuWindow.xaml.cs">
       <DependentUpon>DetectionMenuWindow.xaml</DependentUpon>
     </Compile>
+    <Compile Include="LoadingOverlayWindow.xaml.cs">
+      <DependentUpon>LoadingOverlayWindow.xaml</DependentUpon>
+    </Compile>
     <Compile Include="ParameterSettingsWindow.xaml.cs">
       <DependentUpon>ParameterSettingsWindow.xaml</DependentUpon>
     </Compile>
@@ -179,7 +182,9 @@
       <DependentUpon>App.xaml</DependentUpon>
       <SubType>Code</SubType>
     </Compile>
+    <Compile Include="AppShutdownCoordinator.cs" />
     <Compile Include="MainViewModel.cs" />
+    <Compile Include="WindowNavigationHelper.cs" />
     <Compile Include="MainWindow2.xaml.cs">
       <DependentUpon>MainWindow2.xaml</DependentUpon>
     </Compile>
@@ -205,6 +210,10 @@
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
     </Page>
+    <Page Include="LoadingOverlayWindow.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
     <Page Include="MainWindow2.xaml">
       <SubType>Designer</SubType>
       <Generator>XamlIntelliSenseFileGenerator</Generator>
@@ -303,4 +312,4 @@
     </PropertyGroup>
     <Error Condition="!Exists('packages\MaterialDesignThemes.5.3.0\build\MaterialDesignThemes.targets')" Text="$([System.String]::Format('$(ErrorText)', 'packages\MaterialDesignThemes.5.3.0\build\MaterialDesignThemes.targets'))" />
   </Target>
-</Project>
+</Project>