使用NotificationServiceExtension收到通知时如何将事件日志发送到Firebase

Question

我想在应用收到通知时使用NotificationServiceExtension将事件日志发送到Firebase，因为当应用终止（被用户杀死）时，NotificationServiceExtension可以修改内容，因此我认为我可以在此处放置一些代码来发送事件日志

import Firebase
import UserNotifications

class NotificationService: UNNotificationServiceExtension {

    var contentHandler: ((UNNotificationContent) -> Void)?
    var bestAttemptContent: UNMutableNotificationContent?

    override func didReceive(_ request: UNNotificationRequest, withContentHandler contentHandler: @escaping (UNNotificationContent) -> Void) {
        self.contentHandler = contentHandler
        bestAttemptContent = (request.content.mutableCopy() as? UNMutableNotificationContent)

        if let bestAttemptContent = bestAttemptContent {

            let data = bestAttemptContent.userInfo as! [String: Any]
            Analytics.logEvent("notifications_\(data["id"] as? String ?? "")_received", parameters: nil)

            bestAttemptContent.title = "\(bestAttemptContent.title) [modified]"
            contentHandler(bestAttemptContent)
        }
    }

    override func serviceExtensionTimeWillExpire() {
        // Called just before the extension will be terminated by the system.
        // Use this as an opportunity to deliver your "best attempt" at modified content, otherwise the original push payload will be used.
        if let contentHandler = contentHandler, let bestAttemptContent =  bestAttemptContent {

            contentHandler(bestAttemptContent)
        }
    }

}