Get device token for push notification

Question

I am working on push notifications  I wrote the following code for fetching a device token   -  BOOL application  UIApplication   application didFinishLaunchingWithOptions  NSDictionary   launchOptions              Override point for customization after application launch          Add the view controller s view to the window and display       self window addSubview viewController view        self window makeKeyAndVisible        NSLog   Registering for push notifications                 UIApplication sharedApplication  registerForRemoteNotificationTypes        UIRemoteNotificationTypeSound   UIRemoteNotificationTypeAlert         return YES     -  void application  UIApplication   app didRegisterForRemoteNotificationsWithDeviceToken  NSData   deviceToken        NSString  str    NSString stringWithFormat   Device Token     deviceToken       NSLog   This is device token     deviceToken      -  void application  UIApplication   app didFailToRegisterForRemoteNotificationsWithError  NSError   err        NSString  str    NSString stringWithFormat    Error       err       NSLog   Error     err           I am able to run application on device successfully but not able to get the device id on console   I have no issues with certification and provisioning profiles

User · Answer

Swift 4 This works for me  Step 1 into TARGETS Click on add capability and select Push Notifications Step 2 in AppDelegate swift add the following code  func application   application  UIApplication  didFinishLaunchingWithOptions launchOptions   UIApplication LaunchOptionsKey  Any    - gt  Bool                 UNUserNotificationCenter current   requestAuthorization options    alert  sound      didAllow  error  in                                UIApplication shared registerForRemoteNotifications                    return true                  Get device token     func application   application  UIApplication  didRegisterForRemoteNotificationsWithDeviceToken deviceToken  Data                let tokenString   deviceToken reduce  quot  quot     0   String format   quot  02X quot    1                     print  quot The token    tokenString  quot

User · Answer

In a build setting set code signing Provision Profile if you have APN Enable certificate then you will definitely get the token id  and remove   Provision Profile   Automatic  and set to  Provision Profile   Your provision profile certificate

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In your AppDelegate  in the didRegisterForRemoteNotificationsWithDeviceToken method   Updated for Swift   func application   application  UIApplication  didRegisterForRemoteNotificationsWithDeviceToken deviceToken  Data        print    deviceToken reduce        0   String format    02 2hhx   arguments    1

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To get Token Device you can do by some steps   1  Enable APNS  Apple Push Notification Service  for both Developer Certification and Distribute Certification  then redownload those two file   2  Redownload both Developer Provisioning and Distribute Provisioning file   3  In Xcode interface  setting provisioning for PROJECT and TARGETS with two file provisioning have download   4  Finally  you need to add the code below in AppDelegate file to get Token Device   note  run app in real device    -  BOOL application  UIApplication   application didFinishLaunchingWithOptions  NSDictionary   launchOptions             self window addSubview viewController view         self window makeKeyAndVisible         NSLog   Registering for push notifications                  UIApplication sharedApplication  registerForRemoteNotificationTypes    UIRemoteNotificationTypeSound   UIRemoteNotificationTypeAlert         return YES     -  void application  UIApplication   app didRegisterForRemoteNotificationsWithDeviceToken  NSData   deviceToken         NSString  str    NSString stringWithFormat   Device Token     deviceToken        NSLog        str      -  void application  UIApplication   app didFailToRegisterForRemoteNotificationsWithError  NSError   err         NSString  str    NSString stringWithFormat    Error       err        NSLog       str

User · Answer

Get device token in Swift 3  func application   application  UIApplication  didRegisterForRemoteNotificationsWithDeviceToken deviceToken  Data         let deviceTokenString   deviceToken reduce       0   String format    02X    1         print  Device token    deviceTokenString

User · Answer

Using description as many of these answers suggest is the wrong approach - even if you get it to work  it will break in iOS 13    Instead you should ensure you use the actual binary data  not simply a description of it  Andrey Gagan addressed the Objective C solution quite well  but fortunately it s much simpler in swift   Swift 4 2 works in iOS 13      credit to NSHipster  see link above     format specifier produces a zero-padded  2-digit hexadecimal representation let deviceTokenString   deviceToken map   String format    02x    0    joined

User · Answer

Following code is use for the retrive the device token          Prepare the Device Token for Registration  remove spaces and  lt   gt       NSString  devToken       deviceToken description                               stringByReplacingOccurrencesOfString    lt  withString                                  stringByReplacingOccurrencesOfString    gt   withString                                 stringByReplacingOccurrencesOfString       withString              NSString  str    NSString                       stringWithFormat   Device Token     devToken       UIAlertView  alertCtr      UIAlertView alloc  initWithTitle   Token is   message devToken delegate self cancelButtonTitle nil otherButtonTitles  nil  autorelease        alertCtr show       NSLog   device token -     str

User · Answer

If you are still not getting device token  try putting following code so to register your device for push notification   It will also work on ios8 or more    if   IPHONE OS VERSION MAX ALLOWED  gt   80000      if   UIApplication respondsToSelector  selector registerUserNotificationSettings               UIUserNotificationSettings  settings    UIUserNotificationSettings settingsForTypes UIUserNotificationTypeBadge UIUserNotificationTypeAlert UIUserNotificationTypeSound                                                                                  categories nil             UIApplication sharedApplication  registerUserNotificationSettings settings             UIApplication sharedApplication  registerForRemoteNotifications         else             UIApplication sharedApplication  registerForRemoteNotificationTypes           UIRemoteNotificationTypeBadge            UIRemoteNotificationTypeAlert            UIRemoteNotificationTypeSound           else       UIApplication sharedApplication  registerForRemoteNotificationTypes       UIRemoteNotificationTypeBadge        UIRemoteNotificationTypeAlert        UIRemoteNotificationTypeSound     endif

User · Answer

In order to get the device token use following code but you can get the device token only using physical device  If you have mandatory to send the device token then while using simulator you can put the below condition     if   TARGET IPHONE SIMULATOR                  infoDict setValue   NSUserDefaults standardUserDefaults  valueForKey   DeviceToken   forKey   device id              else                infoDict setValue   e79c2b66222a956ce04625b22e3cad3a63e91f34b1a21213a458fadb2b459385  forKey   device id             -  void application  UIApplication  application didRegisterForRemoteNotificationsWithDeviceToken  NSData  deviceToken       NSLog   My token is       deviceToken       NSString   deviceTokenString       deviceToken description  stringByReplacingOccurrencesOfString     lt   withString       stringByReplacingOccurrencesOfString     gt   withString         stringByReplacingOccurrencesOfString       withString            NSLog   the generated device token string is       deviceTokenString         NSUserDefaults standardUserDefaults  setObject deviceTokenString forKey   DeviceToken

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func application   application  UIApplication  didRegisterForRemoteNotificationsWithDeviceToken deviceToken  Data         let tokenParts   deviceToken map   data - gt  String in         return String format    02 2hhx   data                let token   tokenParts joined        print  Token  token

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NOTE  The below solution no longer works on iOS 13  devices - it will return garbage data  Please use following code instead     NSString   hexadecimalStringFromData  NSData   data     NSUInteger dataLength   data length    if  dataLength    0        return nil         const unsigned char  dataBuffer    const unsigned char   data bytes    NSMutableString  hexString     NSMutableString stringWithCapacity  dataLength   2      for  int i   0  i  lt  dataLength    i         hexString appendFormat   quot  02x quot   dataBuffer i          return  hexString copy       Solution that worked prior to iOS 13  Objective-C -  void application  UIApplication   app didRegisterForRemoteNotificationsWithDeviceToken  NSData   deviceToken        NSString  token     deviceToken description  stringByTrimmingCharactersInSet   NSCharacterSet characterSetWithCharactersInString   quot  lt  gt  quot         token    token stringByReplacingOccurrencesOfString   quot   quot  withString   quot  quot        NSLog   quot this will return  32 bytes  in iOS 13  rather than the token quot   token       Swift 3 0 func application   application  UIApplication  didRegisterForRemoteNotificationsWithDeviceToken deviceToken  Data        let tokenString   deviceToken reduce  quot  quot     0   String format   quot  02X quot    1        print  quot this will return  32 bytes  in iOS 13  rather than the token   tokenString  quot

User · Answer

Starting from iOS 13 Apple has changed  deviceToken description output  Now it is like this  length 32 bytes 0x0b8823aec3460e1724e795cba45d22e8   af8c09f971d0dabc  which is incorrect for device token   I suggest to use this code snippet to resolve a problem      NSString   stringFromDeviceToken  NSData   deviceToken       NSUInteger length   deviceToken length      if  length    0            return nil            const unsigned char  buffer   deviceToken bytes      NSMutableString  hexString     NSMutableString stringWithCapacity  length   2        for  int i   0  i  lt  length    i             hexString appendFormat    02x   buffer i              return  hexString copy       It will work for iOS13 and lower

User · Answer

Objective C for iOS 13   courtesy of Wasif Saood s answer  Copy and paste below code into AppDelegate m to print the device APN token   -  void application  UIApplication   app didRegisterForRemoteNotificationsWithDeviceToken  NSData   deviceToken     NSUInteger dataLength   deviceToken length    if  dataLength    0        return        const unsigned char  dataBuffer    const unsigned char   deviceToken bytes    NSMutableString  hexString     NSMutableString stringWithCapacity  dataLength   2      for  int i   0  i  lt  dataLength    i         hexString appendFormat    02x   dataBuffer i          NSLog   APN token      hexString

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And the Swift version of the Wasif s answer   Swift 2 x  var token   deviceToken description stringByTrimmingCharactersInSet NSCharacterSet charactersInString    lt  gt     token   token stringByReplacingOccurrencesOfString      withString      print  Token is   token      Update for Swift 3  let deviceTokenString   deviceToken map   String format    02 2hhx    0    joined

[ios] Get device token for push notification

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