iOS 未收到来自 CloudKit 的推送通知

Question

我正在尝试为 CloudKit Records 设置订阅，订阅创建成功，我可以使用 CKFetchSubscriptionsOperation 成功检索它。但是函数
application(_:didReceiveRemoteNotification:) 没有被调用...(我正在仪表板中手动更改记录)

订阅是这样设置的:

let database = CKContainer.default().privateCloudDatabase
let subscription = CKSubscription(recordType: "Device", predicate: NSPredicate(format: "TRUEPREDICATE"), options: .firesOnRecordUpdate)

let notificationInfo = CKNotificationInfo()
notificationInfo.alertLocalizationKey = "DEVICE_UPDATED"
notificationInfo.alertBody = "Device updated in database"

subscription.notificationInfo = notificationInfo

database.save(subscription) { subscription, error in
    if error != nil {
        print(error?.localizedDescription as Any)
    } else {
        print(subscription)
    }
}

通知的注册注册是:

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {        
    let notificationSettings = UIUserNotificationSettings(types: [.alert, .badge], categories: nil)
    application.registerUserNotificationSettings(notificationSettings)
    application.registerForRemoteNotifications()

    return true
}

func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any]) {
    print(userInfo)
}

Answer 1

好的，我必须启用推送通知并生成“Apple 推送通知服务 SSL 证书”并将其附加到我在 Apple Developer Provisioning Profiles 页面上的应用