Registering for Push Notifications in Xcode 8 Swift 3 0

Question

I m trying to get my app working in Xcode 8 0  and am running into an error  I know this code worked fine in previous versions of swift  but I m assuming the code for this is changed in the new version  Here s the code I m trying to run   let settings   UIUserNotificationSettings forTypes    Sound   Alert   Badge   categories  nil       UIApplication sharedApplication   registerUserNotificationSettings settings  UIApplication shared   registerForRemoteNotifications     The error that I m getting is  Argument labels   forTypes   categories    do not match any available overloads   Is there a different command that I could try to get this working

User · Answer

Heads up  you should be using the main thread for this action   let center   UNUserNotificationCenter current   center requestAuthorization options   badge   alert   sound      granted  error  in         if granted               DispatchQueue main async execute                    UIApplication shared registerForRemoteNotifications

User · Answer

First  listen to user notification status  i e   registerForRemoteNotifications   to get APNs device token  Second  request authorization  When being authorized by the user  deviceToken will be sent to the listener  the AppDelegate  Third  report the device token to your server   extension AppDelegate           1     deviceToken     UIApplication shared registerForRemoteNotifications            2                    token      static func registerRemoteNotifications             if  available iOS 10                   let uc   UNUserNotificationCenter current               uc delegate   UIApplication shared delegate as  AppDelegate             uc requestAuthorization options    alert   badge   sound      granted  error  in                 if let error   error                    aps-certificate   error     nil                     print  UNUserNotificationCenter           error                                      DispatchQueue main async                       onAuthorization granted  granted                                            else               let app   UIApplication shared             app registerUserNotificationSettings UIUserNotificationSettings types    badge   sound   alert   categories  nil                                       app registerUserNotificationSettings                                func application   app  UIApplication  didRegister notificationSettings  UIUserNotificationSettings                                           a            app                          b                                 token                  c   badge  alert sound   notificationSettings types rawValue    0   app isRegisteredForRemoteNotifications        token                          types                                      isRegisteredForRemoteNotifications     false        onAuthorization granted  app isRegisteredForRemoteNotifications             static func onAuthorization granted  Bool            guard granted else   return              do something          extension AppDelegate       func application   app  UIApplication  didRegisterForRemoteNotificationsWithDeviceToken deviceToken  Data                                    token     aps-certificate         token              token     func application   app  UIApplication  didFailToRegisterForRemoteNotificationsWithError error  Error

User · Answer

Import the UserNotifications framework and add the UNUserNotificationCenterDelegate in AppDelegate swift   Request user permission  func application   application  UIApplication  didFinishLaunchingWithOptions launchOptions   NSObject  AnyObject    - gt  Bool             let center   UNUserNotificationCenter current           center requestAuthorization options   badge   alert   sound      granted  error  in                Enable or disable features based on authorization                    application registerForRemoteNotifications           return true     Getting device token   func application   application  UIApplication  didRegisterForRemoteNotificationsWithDeviceToken deviceToken  Data         let deviceTokenString   deviceToken reduce       0   String format    02X    1        print deviceTokenString      In case of error  func application   application  UIApplication  didFailToRegisterForRemoteNotificationsWithError error  Error             print  i am not available in simulator   error        In case if you need to know the permissions granted  UNUserNotificationCenter current   getNotificationSettings     settings  in              switch settings soundSetting              case  enabled                   print  enabled sound setting                case  disabled                   print  setting has been disabled                case  notSupported                  print  something vital went wrong here

User · Answer

func application   application  UIApplication  didFinishLaunchingWithOptions launchOptions   NSObject  AnyObject    - gt  Bool        if  available iOS 10                  Notifications get posted to the function  delegate    func userNotificationCenter   center  UNUserNotificationCenter  didReceive response  UNNotificationResponse  withCompletionHandler completionHandler     - gt  Void             UNUserNotificationCenter current   requestAuthorization options    alert   badge   sound      granted  error  in              guard error    nil else                     Display Error   Handle Error   etc                   return                            if granted                     Do stuff here                      Register for RemoteNotifications  Your Remote Notifications can display alerts now                    DispatchQueue main async                       application registerForRemoteNotifications                                               else                     Handle user denying permissions                                      Register for remote notifications   If permission above is NOT granted  all notifications are delivered silently to AppDelegate          application registerForRemoteNotifications             else           let settings   UIUserNotificationSettings types    alert   badge   sound   categories  nil          application registerUserNotificationSettings settings          application registerForRemoteNotifications              return true

User · Answer

The answer from ast1 is very simple and useful   It works for me  thank you so much  I just want to poin it out here  so people who need this answer can find it easily  So  here is my code from registering local and remote  push  notification         1  In Appdelegate  didFinishLaunchingWithOptions add these line of codes     let mynotif   UNUserNotificationCenter current       mynotif requestAuthorization options    alert   sound   badge     granted  error  in    register and ask user s permission for local notification        2  Add these functions at the bottom of your AppDelegate before the last         func application   application  UIApplication  didRegister notificationSettings  UNNotificationSettings            application registerForRemoteNotifications    register for push notif after users granted their permission for showing notification       func application   application  UIApplication  didRegisterForRemoteNotificationsWithDeviceToken deviceToken  Data        let tokenString   deviceToken reduce       0   String format    02X    1        print  Device Token    tokenString     print device token in debugger console       func application   application  UIApplication  didFailToRegisterForRemoteNotificationsWithError error  Error        print  Failed to register    error     print error in debugger console

User · Answer

Well this work for me  First  in AppDelegate  import UserNotifications   Then      func application   application  UIApplication  didFinishLaunchingWithOptions launchOptions   UIApplicationLaunchOptionsKey  Any    - gt  Bool              Override point for customization after application launch          registerForRemoteNotification           return true            func registerForRemoteNotification             if  available iOS 10 0                   let center    UNUserNotificationCenter current               center delegate   self             center requestAuthorization options    sound   alert   badge      granted  error  in                 if error    nil                      UIApplication shared registerForRemoteNotifications                                                     else               UIApplication shared registerUserNotificationSettings UIUserNotificationSettings types    sound   alert   badge   categories  nil               UIApplication shared registerForRemoteNotifications                     To get devicetoken     func application   application  UIApplication  didRegisterForRemoteNotificationsWithDeviceToken deviceToken  Data            let deviceTokenString   deviceToken reduce       0   String format    02X    1

User · Answer

I had issues with the answers here in converting the deviceToken Data object to a string to send to my server with the current beta of Xcode 8  Especially the one that was using deviceToken description as in 8 0b6 that would return  32 Bytes  which isn t very useful     This is what worked for me     Create an extension on Data to implement a  hexString  method   extension Data       func hexString   - gt  String           return self reduce       string  byte in             string   String format    02X   byte                      And then use that when you receive the callback from registering for remote notifications   func application   application  UIApplication  didRegisterForRemoteNotificationsWithDeviceToken deviceToken  Data        let deviceTokenString   deviceToken hexString          Send to your server here

User · Answer

Simply do the following in didFinishWithLaunching    if  available iOS 10 0            let center   UNUserNotificationCenter current        center delegate   self     center requestAuthorization options             in         application registerForRemoteNotifications             Remember about import statement   import UserNotifications

User · Answer

Take a look at this commented code   import Foundation import UserNotifications import ObjectMapper  class AppDelegate       let center   UNUserNotificationCenter current      extension AppDelegate        struct Keys           static let deviceToken    deviceToken                MARK  - UIApplicationDelegate Methods     func application    UIApplication  didRegisterForRemoteNotificationsWithDeviceToken deviceToken  Data             if let tokenData  String   String data  deviceToken  encoding  String Encoding utf8                debugPrint  Device Push Token   tokenData                          Prepare the Device Token for Registration  remove spaces and  lt   gt           setDeviceToken deviceToken             func application    UIApplication  didFailToRegisterForRemoteNotificationsWithError error  Error            debugPrint error localizedDescription                MARK  - Private Methods              Register remote notification to send notifications             func registerRemoteNotification              center requestAuthorization options    alert   sound   badge      granted  error  in                 Enable or disable features based on authorization              if granted     true                    DispatchQueue main async                       UIApplication shared registerForRemoteNotifications                                   else                   debugPrint  User denied the permissions                                               Deregister remote notification             func deregisterRemoteNotification             UIApplication shared unregisterForRemoteNotifications              func setDeviceToken   token  Data            let token   token map   String format    02 2hhx   arguments    0     joined           UserDefaults setObject token as AnyObject   forKey     deviceToken                class func deviceToken   - gt  String           let deviceToken  String    UserDefaults objectForKey    deviceToken     as  String          if isObjectInitialized deviceToken as AnyObject                 return deviceToken                     return  123             func isObjectInitialized   value  AnyObject   - gt  Bool           guard let     value else                   return false                        return true          extension AppDelegate  UNUserNotificationCenterDelegate        func userNotificationCenter   center  UNUserNotificationCenter  willPresent notification  UNNotification  withCompletionHandler completionHandler   escaping UNNotificationPresentationOptions  - gt  Swift Void                 notification request content userInfo  Identifier    notification request identifier             completionHandler   alert   badge   sound              func userNotificationCenter   center  UNUserNotificationCenter  didReceive response  UNNotificationResponse  withCompletionHandler completionHandler   escaping   - gt  Swift Void             debugPrint    response notification request content userInfo  Identifier    response notification request identifier               Let me know if there is any problem

User · Answer

import UserNotifications    Next  go to the project editor for your target  and in the General tab  look for the Linked Frameworks and Libraries section  Click   and select UserNotifications framework     iOS 12 support if  available iOS 12             UNUserNotificationCenter current   requestAuthorization options   badge   alert   sound   provisional   providesAppNotificationSettings   criticalAlert     granted  error  in       application registerForRemoteNotifications         iOS 10 support if  available iOS 10             UNUserNotificationCenter current   requestAuthorization options   badge   alert   sound     granted  error  in       application registerForRemoteNotifications        iOS 9 support else if  available iOS 9             UIApplication shared registerUserNotificationSettings UIUserNotificationSettings types    badge   sound   alert   categories  nil       UIApplication shared registerForRemoteNotifications        iOS 8 support else if  available iOS 8             UIApplication shared registerUserNotificationSettings UIUserNotificationSettings types    badge   sound   alert   categories  nil       UIApplication shared registerForRemoteNotifications        iOS 7 support else         application registerForRemoteNotifications matching    badge   sound   alert      Use Notification delegate methods    Called when APNs has assigned the device a unique token func application   application  UIApplication  didRegisterForRemoteNotificationsWithDeviceToken deviceToken  Data             Convert token to string     let deviceTokenString   deviceToken reduce  quot  quot     0   String format   quot  02X quot    1        print  quot APNs device token    deviceTokenString  quot         Called when APNs failed to register the device for push notifications func application   application  UIApplication  didFailToRegisterForRemoteNotificationsWithError error  Error             Print the error to console  you should alert the user that registration failed      print  quot APNs registration failed    error  quot      For receiving push notification func application   application  UIApplication  didReceiveRemoteNotification userInfo   AnyHashable   Any   fetchCompletionHandler completionHandler   escaping  UIBackgroundFetchResult  - gt  Void        completionHandler UIBackgroundFetchResult noData      Setting up push notifications is enabling the feature within Xcode 8 for your app  Simply go to the project editor for your target and then click on the Capabilities tab  Look for Push Notifications and toggle its value to ON   Check below link for more Notification delegate methods  Handling Local and Remote Notifications UIApplicationDelegate - Handling Local and Remote Notifications https   developer apple com reference uikit uiapplicationdelegate

User · Answer

In iOS10 instead of your code  you should request an authorization for notification with the following   Don t forget to add the UserNotifications Framework   if  available iOS 10 0               UNUserNotificationCenter current   requestAuthorization   alert   sound   badge      granted  Bool  error  NSError   in                Do something here                   Also  the correct code for you is  use in the else of the previous condition  for example     let setting   UIUserNotificationSettings types    alert   badge   sound   categories  nil  UIApplication shared   registerUserNotificationSettings setting  UIApplication shared   registerForRemoteNotifications     Finally  make sure Push Notification is activated under target-  Capabilities -  Push notification   set it on On

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