自习室优化ok

lib/pages/teacher/room/widgets/status_view.dart

@@ -1,11 +1,11 @@
-import 'dart:async';
-
 import 'package:app/utils/time.dart';
 import 'package:app/widgets/base/dialog/config_dialog.dart';
 import 'package:flutter/material.dart';
+import 'package:flutter_easyloading/flutter_easyloading.dart';
 import 'package:go_router/go_router.dart';
 import 'package:provider/provider.dart';
 
+import '../../../../widgets/room/core/count_down_vm.dart';
 import 'content_view.dart';
 import '../viewmodel/tch_room_vm.dart';
 
@@ -17,40 +17,12 @@ class StatusView extends StatefulWidget {
 }
 
 class _StatusViewState extends State<StatusView> {
-  int _seconds = 0;
-  Timer? _timer;
-
   @override
-  void dispose() {
-    _timer?.cancel();
-    super.dispose();
-  }
-
-  void _startCountDown(DateTime startTime) {
-    // 避免重复计时器
-    if (_timer != null) return;
-
-    final now = DateTime.now();
-    int diff = startTime.difference(now).inSeconds;
-
-    if (diff <= 0) {
-      return;
-    }
-    setState(() {
-      _seconds = diff;
-    });
-
-    _timer = Timer.periodic(const Duration(seconds: 1), (timer) {
-      if (!mounted) return;
-      setState(() {
-        _seconds--;
-      });
-
-      if (_seconds <= 0) {
-        _timer?.cancel();
-        _timer = null;
-      }
-    });
+  void initState() {
+    super.initState();
+    final countVM = context.read<CountDownVM>();
+    countVM.removeListener(_onCountDownEnd);
+    countVM.addListener(_onCountDownEnd);
   }
 
   ///开播中返回拦截弹窗
@@ -72,55 +44,65 @@ class _StatusViewState extends State<StatusView> {
     );
   }
 
+  ///监听会议室倒计时结束的时候
+  void _onCountDownEnd() {
+    final countVM = context.read<CountDownVM>();
+    if (countVM.endCountDown == 0) {
+      EasyLoading.showToast("自习室已到结束时间，请记得关闭会议室");
+      countVM.removeListener(_onCountDownEnd);
+    }
+  }
+
   @override
   Widget build(BuildContext context) {
-    final vm = context.watch<TchRoomVM>();
+    final tchVM = context.watch<TchRoomVM>();
+    var roomStatus = tchVM.roomInfo.roomStatus;
 
     /// 1. 未加载
-    if (vm.roomStatus == -1) {
+    if (roomStatus == -1) {
       return const Align(
         child: Text("加载中", style: TextStyle(color: Colors.white)),
       );
     }
 
     /// 2. 未开始的房间
-    if (vm.roomStatus == 0) {
-      if (vm.canEnterRoom) {
-        // 到时间了 → 自动开播
-        WidgetsBinding.instance.addPostFrameCallback((_) {
-          vm.toggleRoom(isOpen: true);
-        });
-      } else {
-        // 没到时间 → 启动倒计时
-        _startCountDown(parseTime(vm.roomInfo.startTime));
-      }
-
-      return Align(
-        child: Column(
-          mainAxisAlignment: MainAxisAlignment.center,
-          children: [
-            const Text(
-              "未到开播时间，到点后自动开播",
-              style: TextStyle(color: Colors.white),
-            ),
-            Container(
-              margin: const EdgeInsets.symmetric(vertical: 10),
-              child: Text(
-                formatSeconds(_seconds),
-                style: const TextStyle(
-                  color: Colors.white,
-                  fontSize: 26,
-                  fontWeight: FontWeight.bold,
-                ),
+    if (roomStatus == 0) {
+      return Consumer<CountDownVM>(
+        builder: (_, countVM, __) {
+          if (countVM.canEnterRoom) {
+            tchVM.toggleRoom(isOpen: true);
+            return SizedBox();
+          } else {
+            countVM.startStartCountdown();
+            return Align(
+              child: Column(
+                mainAxisAlignment: MainAxisAlignment.center,
+                children: [
+                  const Text(
+                    "未到开播时间，到点后自动开播",
+                    style: TextStyle(color: Colors.white),
+                  ),
+                  Container(
+                    margin: const EdgeInsets.symmetric(vertical: 10),
+                    child: Text(
+                      formatSeconds(countVM.startCountDown),
+                      style: const TextStyle(
+                        color: Colors.white,
+                        fontSize: 26,
+                        fontWeight: FontWeight.bold,
+                      ),
+                    ),
+                  ),
+                ],
               ),
-            ),
-          ],
-        ),
+            );
+          }
+        },
       );
     }
 
     /// 3. 已开播
-    if (vm.roomStatus == 1) {
+    if (roomStatus == 1) {
       return PopScope(
         canPop: false,
         onPopInvokedWithResult: (didPop, _) {