mohemm-flutter-app/ios/Runner/AppDelegate.swift

import UIKit
import Flutter
import Firebase
import flutter_local_notifications


@UIApplicationMain
@objc class AppDelegate: FlutterAppDelegate {
  override func application(
    _ application: UIApplication,
    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
  ) -> Bool {
     FirebaseApp.configure()
     FlutterLocalNotificationsPlugin.setPluginRegistrantCallback { (registry) in
           GeneratedPluginRegistrant.register(with: registry)
       }
       if #available(iOS 10.0, *) {
         UNUserNotificationCenter.current().delegate = self as UNUserNotificationCenterDelegate
       }
    GeneratedPluginRegistrant.register(with: self)
    return super.application(application, didFinishLaunchingWithOptions: launchOptions)
  }
}