iOS Swift，didRegisterForRemoteNotificationsWithDeviceToken

Question

我需要检查用户是否已授予通知权限，直到我知道只有在给出通知权限时才会调用didRegisterForRemoteNotificationsWithDeviceToken，但在某些设备中，无论权限如何，都会调用它给定与否。有人可以帮我解决如何检查许可状态的问题。

  即使我拒绝通知访问权限，

didRegisterForRemoteNotificationsWithDeviceToken也会被调用。

Answer 1

Swift 3.0和Xcode 8

UNUserNotificationCenter.current().delegate = self

UNUserNotificationCenter.current().requestAuthorization(options: [.badge, .sound, .alert], completionHandler: { (granted, error) in
                            if (granted)
                            {
                                UIApplication.shared.registerForRemoteNotifications()
                                //Allow Push Notification

                            }
                            else
                            {
                                //Don't Allow Push Notification
                            }
                        })