didReceiveRemoteNotification不在MacCatalyst上调用

Question

[当我创建CKSubscription时，在iOS上可以正常调用didReceiveRemoteNotification，但在MacOS上则不能。我遇到了一个2015 SO线程，该线程正在讨论一个错误，建议的解决方法是将通知信息的soundName设置为空字符串-不幸的是，这并不能为我解决问题。

这是我注册远程通知的方式：

  func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {

        let subscription = CKQuerySubscription(recordType: "Reminder", predicate: NSPredicate(format: "TRUEPREDICATE"), options: [.firesOnRecordCreation, .firesOnRecordUpdate])

        // Here we customize the notification message
        let info = CKSubscription.NotificationInfo()

        info.shouldSendContentAvailable = true
        info.desiredKeys = ["identifier", "title", "date"]
        info.soundName = ""

        subscription.notificationInfo = info

        // Save the subscription to Private Database in Cloudkit
        CKContainer.default().privateCloudDatabase.save(subscription, completionHandler: { subscription, error in
            if error == nil {
                // Subscription saved successfully 
            } else {
                // Error occurred
            }
        })
    }

Answer 1

使用类方法UNUserNotificationCenterDelegate

extension AppDelegate: UNUserNotificationCenterDelegate {
 func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {

 }
}

要使其正常工作，您需要在方法didFinishLaunchingWithOptions中进行调用>

UNUserNotificationCenter.current().requestAuthorization(options: [.sound, .badge]) {
               (granted, error) in
               if granted {
                DispatchQueue.main.async {
                     UIApplication.shared.registerForRemoteNotifications()
                }
               }else{
                     print(error ?? "Error registered notifications")
               }
          }
     }
      UNUserNotificationCenter.current().delegate = self as UNUserNotificationCenterDelegate