Swift FCM 연결용 AppDelegate (Only Code)

FCM 연결을 할때 AppDelegate 에 일부 코드를 넣어야하는데 

이게 은근 할때마다 헷갈려서 제가 쓸려고 올려봅니다.

(FCM : Firebase Cloud Message 일종의 푸시 서비스 라고 생각하시면 됩니다.)

 

(순수 코드만 올릴거라 별도의 설명은 없습니다.)

import UIKit
import Firebase
import FirebaseMessaging

@main
class AppDelegate: UIResponder, UIApplicationDelegate {
   
    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        
        // Override point for customization after application launch.
        
        sleep(1)
        
        
        FirebaseApp.configure()
            
          Messaging.messaging().delegate = self
          UNUserNotificationCenter.current().delegate = self
          let authOptions: UNAuthorizationOptions = [.alert, .badge, .sound]
            
          UNUserNotificationCenter.current().requestAuthorization(options: authOptions) { _, _ in }
          application.registerForRemoteNotifications()
        
        return true
    }

    // MARK: UISceneSession Lifecycle

    func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {
        // Called when a new scene session is being created.
        // Use this method to select a configuration to create the new scene with.
        return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
    }

    func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {
        // Called when the user discards a scene session.
        // If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.
        // Use this method to release any resources that were specific to the discarded scenes, as they will not return.
    }

    // fcm token
    func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
      let deviceTokenString = deviceToken.reduce("", {$0 + String(format: "%02X", $1)})
      print("[Log] deviceToken :", deviceTokenString)
        
      Messaging.messaging().apnsToken = deviceToken
    }

}

extension AppDelegate: UNUserNotificationCenterDelegate {
  func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
      
      if #available(iOS 14.0, *) {
           completionHandler([.banner, .list, .badge, .sound])
       } else {
           completionHandler([.alert, .badge, .sound])
       }
  }
  
  func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
    completionHandler()
  }
}


extension AppDelegate: MessagingDelegate {
    func messaging(_ messaging: Messaging, didReceiveRegistrationToken fcmToken: String?) {
        print("파이어베이스 토큰: \(fcmToken)")
        // TODO: If necessary send token to application server.

    }
    
    func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any],
                     fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {
        // TODO: Handle data of notification
        completionHandler(UIBackgroundFetchResult.newData)
    }
    

}

이 코드가 정답은 아니지만 

혹시 저처럼 FCM 가이드보다가 헷갈리시는 분들을 위해 올려봅니다. 

 

오늘도 파이팅입니다.