重构机器状态页面的数据获取设定保证数据及时显示

lib/features/home/presentation/pages/running_status_page.dart

@@ -15,7 +15,7 @@ import '../../../../core/di/injection.dart';
 import '../../../../core/network/net_message_dispatcher.dart';
 import '../../../../core/network/protocol_decoder.dart';
 import '../../../devices/presentation/bloc/devices_cubit.dart';
-import '../../../devices/presentation/bloc/device_status_bloc.dart';
+import '../../../devices/presentation/bloc/device_status_cubit.dart';
 import '../../../devices/presentation/bloc/device_status_state.dart';
 
 // 配置：数据超时时间（5秒）
@@ -28,7 +28,10 @@ class RunningStatusPage extends StatefulWidget {
   State<RunningStatusPage> createState() => _RunningStatusPageState();
 }
 
-class _RunningStatusPageState extends State<RunningStatusPage> {
+class _RunningStatusPageState extends State<RunningStatusPage> with WidgetsBindingObserver {
+  // 🔥 静态实例引用,用于生命周期回调
+  static _RunningStatusPageState? _instance;
+  
   bool _isCardView = true;
 
   // 仪表盘/折线图切换状态
@@ -58,12 +61,31 @@ class _RunningStatusPageState extends State<RunningStatusPage> {
   @override
   void initState() {
     super.initState();
-    // 初始化超时计时器
+    // 🔥 注册静态实例
+    _instance = this;
+    debugPrint('🚀 [RunningStatusPage] initState 被调用');
+    // 🔥 简化:直接重置状态,不需要重新初始化监听器
+    context.read<DeviceStatusCubit>().reset();
+    // 🔥 关键:立即启动超时计时器,如果5秒内没收到数据就显示"暂无数据"
     _startDataTimeoutTimer();
+    
+    // 🔥 新增:监听应用生命周期
+    WidgetsBinding.instance.addObserver(this);
+  }
+  
+  @override
+  void didChangeAppLifecycleState(AppLifecycleState state) {
+    if (state == AppLifecycleState.resumed) {
+      debugPrint('🔄 [RunningStatusPage] 应用恢复,强制刷新UI');
+      _forceRefresh();
+    }
   }
 
   @override
   void dispose() {
+    // 🔥 移除生命周期观察者
+    WidgetsBinding.instance.removeObserver(this);
+    _instance = null;
     // 销毁计时器，防止内存泄漏
     _dataTimeoutTimer?.cancel();
     super.dispose();
@@ -819,7 +841,7 @@ class _RunningStatusPageState extends State<RunningStatusPage> {
       body: CustomScrollView(
         physics: const BouncingScrollPhysics(),
         slivers: [
-          BlocBuilder<DeviceStatusBloc, DeviceStatusState>(
+          BlocBuilder<DeviceStatusCubit, DeviceStatusState>(
             builder: (context, state) {
               // 新增：超时状态下显示--
               String qual = _isDataTimeout ? '--' : '--';
@@ -927,7 +949,7 @@ class _RunningStatusPageState extends State<RunningStatusPage> {
           ),
 
           SliverToBoxAdapter(
-            child: BlocBuilder<DeviceStatusBloc, DeviceStatusState>(
+            child: BlocBuilder<DeviceStatusCubit, DeviceStatusState>(
               builder: (context, state) {
                 debugPrint('🎨 [UI-Build] BlocBuilder 重建！当前状态类型：${state.runtimeType}');
 
@@ -942,6 +964,12 @@ class _RunningStatusPageState extends State<RunningStatusPage> {
                 if (!_isDataTimeout && state is DeviceStatusUpdated) {
                   debugPrint('📈 [UI] 检测到 Updated 状态，准备追加图表数据');
                   _appendChartData(state);
+                  // 🔥 关键:收到数据后立即重置超时计时器
+                  _startDataTimeoutTimer();
+                  // 如果之前是超时状态,现在恢复
+                  if (_isDataTimeout) {
+                    setState(() => _isDataTimeout = false);
+                  }
                 }
                 return Container(margin: const EdgeInsets.all(8), child: _isCardView ? _buildCardContentView(state) : _buildChartContentView(state));
               },
@@ -992,6 +1020,18 @@ class _RunningStatusPageState extends State<RunningStatusPage> {
     _voltageHistory.clear();
     _timeIndex = 0;
   }
+  
+  // 🔥 新增:强制刷新UI(用于息屏恢复)
+  void _forceRefresh() {
+    if (mounted) {
+      debugPrint('🔄 [RunningStatusPage] 执行强制刷新');
+      setState(() {
+        // 触发 UI 重建
+      });
+      // 重置超时计时器
+      _startDataTimeoutTimer();
+    }
+  }
 }
 
 // ====================== 带动画的圆形仪表盘 Widget ======================

lib/features/home/presentation/routes/home_routes.dart

@@ -7,7 +7,7 @@ import 'package:maibu_satabot_v2/features/home/presentation/pages/productDesc.da
 
 import '../../../../core/di/injection.dart';
 import '../../../../core/router/route_paths.dart';
-import '../../../devices/presentation/bloc/device_status_bloc.dart';
+import '../../../devices/presentation/bloc/device_status_cubit.dart';
 import '../../../remote_control/presentation/bloc/remote_control_cubit.dart';
 import '../../../remote_control/presentation/pages/remote_control_page.dart';
 import '../pages/route_plan_page.dart';
@@ -33,7 +33,7 @@ class HomeRoutes {
       path: RoutePaths.runningStatus,
       //  builder: (context, state) => const RunningStatusPage(),
       builder: (context, state) => BlocProvider(
-        create: (_) => sl<DeviceStatusBloc>(), // 从 GetIt 获取单例
+        create: (_) => DeviceStatusCubit(sl()), // 使用简化版 Cubit
         child: const RunningStatusPage(),
       ),
     ),