Add Design.IsDesignMode to the desktop version

v2rayN/ServiceLib/Common/JsonUtils.cs

@@ -35,9 +35,13 @@ public class JsonUtils
     /// <typeparam name="T"></typeparam>
     /// <param name="obj"></param>
     /// <returns></returns>
-    public static T DeepCopy<T>(T obj)
+    public static T? DeepCopy<T>(T? obj)
     {
-        return Deserialize<T>(Serialize(obj, false))!;
+        if (obj is null)
+        {
+            return default;
+        }
+        return Deserialize<T>(Serialize(obj, false));
     }
 
     /// <summary>
@@ -67,7 +71,7 @@ public class JsonUtils
     /// </summary>
     /// <param name="strJson"></param>
     /// <returns></returns>
-    public static JsonNode? ParseJson(string strJson)
+    public static JsonNode? ParseJson(string? strJson)
     {
         try
         {
@@ -116,7 +120,7 @@ public class JsonUtils
     /// <param name="obj"></param>
     /// <param name="options"></param>
     /// <returns></returns>
-    public static string Serialize(object? obj, JsonSerializerOptions options)
+    public static string Serialize(object? obj, JsonSerializerOptions? options)
     {
         var result = string.Empty;
         try
@@ -125,7 +129,7 @@ public class JsonUtils
             {
                 return result;
             }
-            result = JsonSerializer.Serialize(obj, options);
+            result = JsonSerializer.Serialize(obj, options ?? _defaultSerializeOptions);
         }
         catch (Exception ex)
         {

v2rayN/ServiceLib/Common/Utils.cs

@@ -963,13 +963,13 @@ public class Utils
 
     #region Platform
 
-    public static bool IsWindows() => RuntimeInformation.IsOSPlatform(OSPlatform.Windows);
+    public static bool IsWindows() => OperatingSystem.IsWindows();
 
-    public static bool IsLinux() => RuntimeInformation.IsOSPlatform(OSPlatform.Linux);
+    public static bool IsLinux() => OperatingSystem.IsLinux();
 
-    public static bool IsOSX() => RuntimeInformation.IsOSPlatform(OSPlatform.OSX);
+    public static bool IsOSX() => OperatingSystem.IsMacOS();
 
-    public static bool IsNonWindows() => !RuntimeInformation.IsOSPlatform(OSPlatform.Windows);
+    public static bool IsNonWindows() => !OperatingSystem.IsWindows();
 
     public static string GetExeName(string name)
     {

v2rayN/v2rayN.Desktop/App.axaml.cs

@@ -10,15 +10,17 @@ public partial class App : Application
 
         AppDomain.CurrentDomain.UnhandledException += CurrentDomain_UnhandledException;
         TaskScheduler.UnobservedTaskException += TaskScheduler_UnobservedTaskException;
-
-        DataContext = StatusBarViewModel.Instance;
     }
 
     public override void OnFrameworkInitializationCompleted()
     {
         if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
+        {
+            if (!Design.IsDesignMode)
             {
                 AppManager.Instance.InitComponents();
+                DataContext = StatusBarViewModel.Instance;
+            }
 
             desktop.Exit += OnExit;
             desktop.MainWindow = new MainWindow();

v2rayN/v2rayN.Desktop/Program.cs

@@ -54,12 +54,19 @@ internal class Program
     // Avalonia configuration, don't remove; also used by visual designer.
     public static AppBuilder BuildAvaloniaApp()
     {
-        return AppBuilder.Configure<App>()
+        var builder = AppBuilder.Configure<App>()
            .UsePlatformDetect()
            //.WithInterFont()
            .WithFontByDefault()
            .LogToTrace()
-            .UseReactiveUI()
-            .With(new MacOSPlatformOptions { ShowInDock = AppManager.Instance.Config.UiItem.MacOSShowInDock });
+           .UseReactiveUI();
+
+        if (OperatingSystem.IsMacOS())
+        {
+            var showInDock = Design.IsDesignMode || AppManager.Instance.Config.UiItem.MacOSShowInDock;
+            builder = builder.With(new MacOSPlatformOptions { ShowInDock = showInDock });
+        }
+
+        return builder;
     }
 }