iOS Swift，didRegisterForRemoteNotificationsWithDeviceToken

Question

我需要检查用户是否授予了通知权限，到目前为止我知道只有在授予通知权限时才会调用 didRegisterForRemoteNotificationsWithDeviceToken ，但在某些设备中，无论什么情况都会调用它是否给予许可。有人可以帮我了解如何检查权限状态吗？

didRegisterForRemoteNotificationsWithDeviceToken is getting called even when i deny the permission for notification access.

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
                            }
                        })