Push notifications in versions prior to Xcode8, worked correctly, but when you migrate to swift 3, you no longer register the Token. My code is as follows:
application.registerUserNotificationSettings(UIUserNotificationSettings(types: [.badge, .sound, .alert], categories: nil));
application.registerForRemoteNotifications()
How to register push notifications in Swift 3?
You have to import the framework UserNotifications and add the delegate UNUserNotificationCenterDelegate in the file AppDelegate.swift
Request permission from the user
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> 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
}
Get the Token
func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
let deviceTokenString = deviceToken.reduce("", {$0 + String(format: "%02X", $1)})
print(deviceTokenString)
}