Xcode 9(iOS 11)向我显示了注册推送(远程)通知时的错误/警告。
这是错误消息
这是代码,我已经尝试过:
let center = UNUserNotificationCenter.current()
center.delegate = self
center.requestAuthorization(options: [.sound, .alert, .badge]) { (granted, error) in
if error == nil{
UIApplication.shared.registerForRemoteNotifications()
}
}
错误/警告行:
UIApplication.shared.registerForRemoteNotifications()
如何解决呢?
UIApplication.shared.registerForRemoteNotifications()
主线程中。:)让Google如何在主线程中调用它