启动加载页

2026-08-31 14:55:21 +08:00
parent 7a56eb98d2
commit 4acb4d8d13
4 changed files with 72 additions and 5 deletions
@@ -234,11 +234,23 @@ namespace MainModule.ViewModels
        #region 命令处理与事件
        private async Task OnLoad()
        {
-            if (!IsInitialized)
+            // 设备初始化期间仅对当前台架显示灰度遮罩层，初始化完成后关闭（finally 保证异常时也能关闭）
+            _eventAggregator.GetEvent<ScopeOverlayEvent>().Publish(new ScopeOverlayArgs { Scope = TestStatus, Show = true });
+            // 让遮罩层先完成渲染，再进入同步阻塞的设备初始化（泵送 Dispatcher 至 Render 优先级）
+            System.Windows.Application.Current?.Dispatcher.Invoke(() => { }, System.Windows.Threading.DispatcherPriority.Render);
+            try
            {
-                await _deviceManager.ConnectAllDevices();
-                IsInitialized = true;
+                if (!IsInitialized)
+                {
+                    await _deviceManager.ConnectAllDevices();
+                    IsInitialized = true;
+                }
            }
+            finally
+            {
+                _eventAggregator.GetEvent<ScopeOverlayEvent>().Publish(new ScopeOverlayArgs { Scope = TestStatus, Show = false });
+            }
+            
        }

        private void OnRefresh()