feat:增加日程模块tab页面

lib/widgets/calendar_widget.dart

@@ -1,3 +1,4 @@
+import 'package:flisp_app/models/calendar.dart';
 import 'package:flisp_app/provider/calendar_provider.dart';
 import 'package:flisp_app/widgets/common.dart';
 import 'package:flutter/material.dart';
@@ -16,6 +17,23 @@ class AppointmentDataSource extends CalendarDataSource {
   }
 }
 
+Widget buildTabs({
+  required BuildContext context,
+  required CalendarTab currentTab,
+  required ValueChanged<CalendarTab> onTabChanged,
+}) {
+  return Container(
+    padding: EdgeInsets.all(8),
+    child: buildToggleSwitch(
+      context: context,
+      currentTab: currentTab,
+      tabValues: CalendarTab.values,
+      labels: CalendarTab.values.map((e) => e.label).toList(),
+      onTabChanged: onTabChanged,
+    ),
+  );
+}
+
 Widget buildCalendarMenu({required void Function(CalendarView) onSelected}) {
   return PopupMenuButton<CalendarView>(
     onSelected: onSelected,