DIspose添加

TestingModule/ViewModels/LogAreaViewModel.cs

@@ -11,12 +11,11 @@ using UIShare.ViewModelBase;
 
 namespace TestingModule.ViewModels
 {
-    public class LogAreaViewModel : NavigateViewModelBase
+    public class LogAreaViewModel : NavigateViewModelBase, IDisposable
     {
         // 日志集合
         private ObservableCollection<LogItem> _logs = new();
 
-       
         public ObservableCollection<LogItem> Logs
         {
             get => _logs;
@@ -27,18 +26,42 @@ namespace TestingModule.ViewModels
         public LogAreaViewModel(IContainerProvider containerProvider) : base(containerProvider)
         {
             ClearLogCommand = new DelegateCommand(ClearLog);
+
+            // 2. 保持原有逻辑，但请确保在 Dispose 中对其进行清理
             LoggerHelper.Progress = new System.Progress<(string message, string color, int depth)>(
                log =>
                {
+                   // 增加防御性代码：防止进入销毁流程时异步回调引发空引用异常
+                   if (Logs == null) return;
+
                    var brush = (Brush)new BrushConverter().ConvertFromString(log.color);
                    Logs.Add(new LogItem(log.message, brush, log.depth));
                });
         }
 
-
         private void ClearLog()
         {
-            Logs.Clear();
+            Logs?.Clear();
+        }
+
+        /// <summary>
+        /// 完善后的资源释放方法
+        /// </summary>
+        public void Dispose()
+        {
+            try
+            {
+                LoggerHelper.Progress = null!;
+                if (Logs != null)
+                {
+                    Logs.Clear();
+                    Logs = null!; 
+                }
+            }
+            catch (Exception ex)
+            {
+                Logger.LoggerHelper.ErrorWithNotify($"释放日志组件（LogAreaViewModel）资源失败: {ex.Message}");
+            }
         }
     }