Fixed UserSecretsManager

README.md

@@ -42,6 +42,22 @@ This will automatically initialize following extensions.
 ## Available content
 Please find a list of available content below.
 
+### Utilities
+
+#### UserSecretsManager
+The `UserSecretsManager` helps you to manage your user secrets in your application. It reads the `secrets.json` file stored in the user profile folder.
+
+```cs
+if (Assembly is null)
+{
+    Assembly = IntrospectionExtensions.GetTypeInfo(typeof(MauiProgram)).Assembly;
+    UserSecretsManager.Settings = new UserSecretsManager.UserSecretsManagerBuilder()
+        .WithAppNamespace("SharedMauiXamlStylesLibrary.SampleApp")
+        .WithCustomAssambly(Assembly)
+        .Build();
+}
+```
+
 ### Behaviors
 
 #### Namespace

src/SharedNetCoreLibrary/Utilities/UserSecretsManager.cs

@@ -64,6 +64,10 @@ public UserSecretsManager(string appNamespace, string userSecretsFileName)
             AppNamespace = appNamespace;
             UserSecretsFileName = userSecretsFileName;
         }
+        public UserSecretsManager(string appNamespace, string userSecretsFileName, Assembly assembly) : this(appNamespace, userSecretsFileName)
+        {
+            CurrentAssembly = assembly;
+        }
         #endregion
 
         #region Methods
@@ -72,7 +76,16 @@ public void Initialize(Assembly? assembly = null)
         {
             try
             {
-                CurrentAssembly ??= GetAssembly(typeof(UserSecretsManager));
+                // Override in case a custom assembly is provided
+                if (assembly is not null)
+                    CurrentAssembly = assembly;
+#if NET8_0_OR_GREATER
+                ArgumentNullException.ThrowIfNull(CurrentAssembly, nameof(CurrentAssembly));
+#else
+                if (CurrentAssembly is null)
+                    throw new ArgumentNullException($"The `{nameof(CurrentAssembly)}` cannot be null!");
+#endif
+                //CurrentAssembly ??= GetAssembly(typeof(UserSecretsManager));
                 Stream? stream = CurrentAssembly?.GetManifestResourceStream($"{AppNamespace}.{UserSecretsFileName}");
                 if (stream is not null)
                 {