Update alarm notification when app in foreground, background and terminate

lib/product/permission/notification_permission.dart

@@ -1,8 +1,10 @@
 import 'dart:developer';
+import 'dart:io';
 
 import 'package:app_settings/app_settings.dart';
 import 'package:firebase_messaging/firebase_messaging.dart';
 import 'package:flutter/material.dart';
+import 'package:flutter_local_notifications/flutter_local_notifications.dart';
 import 'package:permission_handler/permission_handler.dart';
 import '../base/widget/dialog/request_permission_dialog.dart';
 
@@ -11,7 +13,7 @@ class NotificationPermission {
   static NotificationPermission? _instance;
   static NotificationPermission get instance =>
       _instance ??= NotificationPermission._init();
-
+  static final FlutterLocalNotificationsPlugin _notificationsPlugin = FlutterLocalNotificationsPlugin();
   Future<bool> checkNotificationPermission(context) async {
     var status = await Permission.notification.status;
     log("Status: $status");
@@ -44,4 +46,21 @@ class NotificationPermission {
           Icons.location_on_outlined, "ABCDE", AppSettingsType.notification);
     }
   }
+   Future<bool?> requestNotificationPermission() async {
+    try {
+      if (Platform.isAndroid) {
+        return await _notificationsPlugin
+            .resolvePlatformSpecificImplementation<AndroidFlutterLocalNotificationsPlugin>()
+            ?.requestNotificationsPermission();
+      } else if (Platform.isIOS) {
+        return await _notificationsPlugin
+            .resolvePlatformSpecificImplementation<IOSFlutterLocalNotificationsPlugin>()
+            ?.requestPermissions(alert: true, sound: true, badge: true);
+      }
+      return null;
+    } catch (e) {
+      log("Error requesting notification permission: $e");
+      return null;
+    }
+  }
 }