feat:增加刷新日程提醒功能

lib/layout/main_screen.dart

@@ -2,7 +2,13 @@ import 'package:flisp_app/layout/app_body.dart';
 import 'package:flisp_app/layout/app_drawer.dart';
 import 'package:flisp_app/layout/app_floating_button.dart';
 import 'package:flisp_app/layout/app_navbar.dart';
+import 'package:flisp_app/models/calendar.dart';
+import 'package:flisp_app/models/todo.dart';
 import 'package:flisp_app/provider/app_provider.dart';
+import 'package:flisp_app/service/calendar_service.dart';
+import 'package:flisp_app/service/todo_service.dart';
+import 'package:flisp_app/utils/date_utils.dart';
+import 'package:flisp_app/utils/notify_utils.dart';
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 
@@ -15,11 +21,55 @@ class MainScreen extends StatefulWidget {
 
 class _MainScreenState extends State<MainScreen> {
   final GlobalKey<AppBodyState> _appBodyKey = GlobalKey();
+  final NotifyService notifyService = NotifyService();
 
   void _onPressedFloatingButton(int index) {
     _appBodyKey.currentState?.showPageAddDialog(index);
   }
 
+  @override
+  void initState() {
+    super.initState();
+    refreshScheduled();
+  }
+
+  /// 重新刷新提醒 防止每次重启设备后提醒丢失的问题
+  void refreshScheduled() async {
+    await notifyService.cancelAllNotifications();
+
+    TodoService todoService = TodoService();
+    final List<Todo> todoResult = todoService.getAllTodos(
+      TodoSortMode.priority,
+    );
+    final List<Todo> todayTodos =
+        todoResult.where((todo) => isToday(todo.scheduledTime)).toList();
+
+    for (Todo todo in todayTodos) {
+      await notifyService.scheduleNotification(
+        id: todo.id,
+        title: '待办提醒',
+        body: todo.title,
+        scheduledTime: todo.scheduledTime!,
+      );
+    }
+
+    CalendarService calendarService = CalendarService();
+    final List<Calendar> calendarResult = calendarService.getAllCalendars();
+    final List<Calendar> todayCalendars =
+        calendarResult
+            .where((calendar) => isToday(calendar.scheduledTime))
+            .toList();
+
+    for (Calendar calendar in todayCalendars) {
+      await notifyService.scheduleNotification(
+        id: calendar.id,
+        title: '日程提醒',
+        body: calendar.title,
+        scheduledTime: calendar.scheduledTime!,
+      );
+    }
+  }
+
   @override
   Widget build(BuildContext context) {
     final provider = context.watch<AppProvider>();