Getting empty device token in iPhone 5 and iPhone SE

Question

I am not getting device token in iPhone 5 (10.2.1) and SE(10.3.1) and other 5 related devices but successfully getting tokens in all iPhone 6 (including plus, SE) and 7, and 7+ also.

This is my code for registering

func registerForPushNotification(let application: UIApplication) {
    let notificationTypes: UIUserNotificationType = [UIUserNotificationType.Alert, UIUserNotificationType.Badge, UIUserNotificationType.Sound]
    let pushNotificationSettings = UIUserNotificationSettings(forTypes: notificationTypes, categories: nil)
    application.registerUserNotificationSettings(pushNotificationSettings)

    application.applicationIconBadgeNumber = 0

    if pushNotificationSettings.types != .None {
        application.registerForRemoteNotifications()
    }
}

And this is my code for collecting token

func application(application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: NSData) {

    let characterSet: NSCharacterSet = NSCharacterSet( charactersInString: "<>" )
    let deviceTokenString: String = ( deviceToken.description as NSString )
        .stringByTrimmingCharactersInSet( characterSet )
        .stringByReplacingOccurrencesOfString( " ", withString: "" ) as String
    print( deviceTokenString )
}

Any help?

see requestAuthorization in this http://stackoverflow.com/a/37967012/3901620 — KKRocks, May 09 '17 at 06:04
@BalajiGalave In 6, my os is 10.1.1 which runs successfully but in 5, os is 10.2.1 which returns empty — Anik Islam Abhi, May 09 '17 at 06:08
have you implemented `didRegisterUserNotificationSettings` ? — Ketan Parmar, May 09 '17 at 06:12
@Lion nope, i have implemented `didFinishLaunchingWithOptions` — Anik Islam Abhi, May 09 '17 at 06:13
in which mode are you running application in all the device ? — Sunil M., May 09 '17 at 06:14
implement `didRegisterUserNotificationSettings` and in this method register for remote notification again! — Ketan Parmar, May 09 '17 at 06:15
With the same code of `didFinishLaunchingWithOptions` ? @Lion — Anik Islam Abhi, May 09 '17 at 06:19
yeah! this method returns settings allows by users, so you should implement it! In `didFinishLaunchingWithOptions` you register for settings that you want but this method returns settings that user have changed from setting app! you should do like : if notificationSettings.types != [] { application.registerForRemoteNotifications() } Refer [Raywenderlich tutorial for reference](https://www.raywenderlich.com/123862/push-notifications-tutorial) — Ketan Parmar, May 09 '17 at 06:24
for getting device token `let deviceTokenString = deviceToken.reduce("", {$0 + String(format: "%02X", $1)})` this code is better , isn't it @Lion — Prashant Tukadiya, May 09 '17 at 06:29
@MikeAlter : it is good but nothing wrong in OP's code also! — Ketan Parmar, May 09 '17 at 06:34
@AnikIslamAbhi : this can be issue of `APNS` also for respective ios version! Have you print `deviceToken` before doing any operation on it ? i mean check that you are getting token (NSData) or not! — Ketan Parmar, May 09 '17 at 07:27

score 0 · Accepted Answer · answered May 31 '17 at 02:44

0

I have handled didRegisterUserNotificationSettings in my AppDelegate

Like this

func application(application: UIApplication, didRegisterUserNotificationSettings notificationSettings: UIUserNotificationSettings) {
    if notificationSettings.types != [] {
        application.registerForRemoteNotifications()
    }   
}

This solved the issue which was suggested by @Lion

answered May 31 '17 at 02:44

Anik Islam Abhi

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You mean you only changed from `.None` to `[]` and your problem was solved?! – mfaani May 31 '17 at 03:02
I didn't handle `didRegisterUserNotificationSettings` previously. After handling this, my problem solved @Honey – Anik Islam Abhi May 31 '17 at 03:51

Getting empty device token in iPhone 5 and iPhone SE

1 Answers1