feat:增加提醒事项

lib/utils/date_utils.dart

@@ -1,3 +1,7 @@
-String formatDate(DateTime date) {
-  return '${date.month}月${date.day}日';
-}
+// String formatDate(DateTime date) {
+//   return '${date.month}月${date.day}日';
+// }
+//
+// String formatTime(DateTime datetime) {
+//   return '${datetime.year}-${datetime.month}-${datetime.day} ${datetime.hour}:${datetime.minute}:${datetime.second}';
+// }

lib/utils/notify_utils.dart

@@ -0,0 +1,146 @@
+import 'package:flutter_local_notifications/flutter_local_notifications.dart';
+import 'package:timezone/data/latest_all.dart' as tz;
+import 'package:timezone/timezone.dart' as tz;
+
+class NotifyService {
+  static final NotifyService _instance = NotifyService._internal();
+
+  factory NotifyService() => _instance;
+
+  NotifyService._internal();
+
+  late FlutterLocalNotificationsPlugin _notifications;
+
+  // 使用绝对时间（而不是相对时间），避免时区转换问题。
+  final dateInterpretation = UILocalNotificationDateInterpretation.absoluteTime;
+
+  // Android特殊模式，即使设备处于省电模式也能准时触发。
+  final scheduleMode = AndroidScheduleMode.exactAllowWhileIdle;
+
+  // 初始化通知服务
+  Future<void> initialize() async {
+    _notifications = FlutterLocalNotificationsPlugin();
+
+    // 初始化时区
+    tz.initializeTimeZones();
+    // String timeZoneName = await FlutterNativeTimezone.getLocalTimezone();
+    tz.setLocalLocation(tz.getLocation("Asia/Shanghai"));
+
+    // 设置Android平台的初始化配置 使用应用图标作为通知图标
+    const AndroidInitializationSettings androidSettings =
+        AndroidInitializationSettings('@mipmap/ic_launcher');
+
+    // 设置iOS平台的初始化配置
+    const DarwinInitializationSettings iosSettings =
+        DarwinInitializationSettings(
+          requestAlertPermission: true,
+          requestBadgePermission: true,
+          requestSoundPermission: true,
+        );
+
+    // 初始化设置
+    const InitializationSettings settings = InitializationSettings(
+      android: androidSettings,
+      iOS: iosSettings,
+    );
+
+    await _notifications.initialize(settings);
+  }
+
+  // 创建Android通知详情
+  AndroidNotificationDetails _androidNotificationDetails() {
+    const channelId = 'com.cxx.flisp_app';
+    const channelName = '闪灵';
+    const channelDescription = '闪灵通知';
+    return const AndroidNotificationDetails(
+      channelId,
+      channelName,
+      channelDescription: channelDescription,
+      importance: Importance.high,
+      priority: Priority.high,
+      playSound: true,
+      enableVibration: true,
+    );
+  }
+
+  // 创建iOS通知详情
+  DarwinNotificationDetails _iosNotificationDetails() {
+    return const DarwinNotificationDetails(
+      presentAlert: true,
+      presentBadge: true,
+      presentSound: true,
+    );
+  }
+
+  NotificationDetails get _details {
+    return NotificationDetails(
+      android: _androidNotificationDetails(),
+      iOS: _iosNotificationDetails(),
+    );
+  }
+
+  // 立即显示通知
+  Future<void> showInstantNotification({
+    required String title,
+    required String body,
+    int id = 0,
+  }) async {
+    await _notifications.show(id, title, body, _details);
+  }
+
+  // 安排定时通知
+  Future<void> scheduleNotification({
+    required int id,
+    required String title,
+    required String body,
+    required DateTime scheduledTime,
+  }) async {
+    print("scheduleNotification: $id");
+    await _notifications.zonedSchedule(
+      id,
+      title,
+      body,
+      tz.TZDateTime.from(scheduledTime, tz.local),
+      _details,
+      uiLocalNotificationDateInterpretation:
+          UILocalNotificationDateInterpretation.absoluteTime,
+      androidScheduleMode: AndroidScheduleMode.exactAllowWhileIdle,
+    );
+  }
+
+  // 取消特定通知
+  Future<void> cancelNotification(int id) async {
+    print("cancelNotification: $id");
+    await _notifications.cancel(id);
+  }
+
+  // 取消所有通知
+  Future<void> cancelAllNotifications() async {
+    await _notifications.cancelAll();
+  }
+
+  // 检查通知权限
+  Future<bool> checkPermission() async {
+    final bool? result =
+        await _notifications
+            .resolvePlatformSpecificImplementation<
+              AndroidFlutterLocalNotificationsPlugin
+            >()
+            ?.areNotificationsEnabled();
+    return result ?? false;
+  }
+
+  // 请求权限
+  Future<void> requestPermission() async {
+    await _notifications
+        .resolvePlatformSpecificImplementation<
+          IOSFlutterLocalNotificationsPlugin
+        >()
+        ?.requestPermissions(alert: true, badge: true, sound: true);
+  }
+
+  // 获取所有待处理的通知
+  Future<List<PendingNotificationRequest>> getPendingNotifications() async {
+    return await _notifications.pendingNotificationRequests();
+  }
+}