feat:增加日程模块

lib/layout/main_screen.dart

@@ -1,4 +1,5 @@
 import 'package:flisp_app/layout/app_drawer.dart';
+import 'package:flisp_app/pages/calendar_page.dart';
 import 'package:flisp_app/pages/flisp_page.dart';
 import 'package:flisp_app/pages/todo_page.dart';
 import 'package:flisp_app/provider/app_provider.dart';
@@ -15,10 +16,15 @@ class MainScreen extends StatefulWidget {
 class _MainScreenState extends State<MainScreen> {
   final GlobalKey<FlispPageState> _flispPageKey = GlobalKey();
   final GlobalKey<TodoPageState> _todoPageKey = GlobalKey();
+  final GlobalKey<CalendarPageState> _calendarPageKey = GlobalKey();
 
   List<BottomNavigationBarItem> navItems = [
     BottomNavigationBarItem(icon: Icon(Icons.flash_on), label: '闪灵'),
     BottomNavigationBarItem(icon: Icon(Icons.checklist), label: '待办'),
+    BottomNavigationBarItem(
+      icon: Icon(Icons.calendar_month_rounded),
+      label: '日程',
+    ),
   ];
 
   @override
@@ -50,7 +56,9 @@ class _MainScreenState extends State<MainScreen> {
               type: BottomNavigationBarType.fixed,
               backgroundColor: Theme.of(context).colorScheme.surface,
               selectedItemColor: Theme.of(context).colorScheme.primary,
-              unselectedItemColor: Theme.of(context).colorScheme.onSurface.withAlpha(120),
+              unselectedItemColor: Theme.of(
+                context,
+              ).colorScheme.onSurface.withAlpha(120),
               showSelectedLabels: true,
               showUnselectedLabels: true,
               items: navItems,
@@ -74,6 +82,10 @@ class _MainScreenState extends State<MainScreen> {
       if (_todoPageKey.currentState != null) {
         _todoPageKey.currentState!.showAddDialog();
       }
+    } else if (index == 2) {
+      if (_calendarPageKey.currentState != null) {
+        _calendarPageKey.currentState!.showAddDialog();
+      }
     }
   }
 
@@ -101,13 +113,15 @@ class _MainScreenState extends State<MainScreen> {
         return FlispPage(key: _flispPageKey);
       case 1:
         return TodoPage(key: _todoPageKey);
+      case 2:
+        return CalendarPage(key: _calendarPageKey);
       default:
         return FlispPage(key: _flispPageKey);
     }
   }
 
   String _getAppBarTitle(int index) {
-    final titles = {0: '闪灵', 1: '待办'};
+    final titles = {0: '闪灵', 1: '待办', 2: '日程'};
     return titles[index] ?? '闪灵';
   }
 }