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我目前正在尝试将Notification Service Extension用作在push notification payload. 为了解决这个问题，我想我会创建一个通知服务扩展来跟踪已收到的消息数量，并相应地跟踪计数。上周我得到了这个工作，现在我继续它，它不再工作了，我不知道为什么会这样。

Notification Service Extension捆绑 ID 正在根据目标进行更改。对于我拥有的 2 个目标，此预构建脚本看起来像这样

buildID=${PRODUCT_BUNDLE_IDENTIFIER}
extId="AppPushNotification"

/usr/libexec/PlistBuddy -c "Set :CFBundleIdentifier $buildID.$extId" "${SRCROOT}/${extId}/Info.plist"

我在扩展程序中使用的代码

import UIKit
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 {
            // Modify the notification content here...
            let userDefaults = UserDefaults.init(suiteName: "group.com.my.bundle.notification-service-extension")
            let unreadMessages = userDefaults?.integer(forKey: "unreadMessages")
            let newUnreadMessages = unreadMessages != nil ? unreadMessages! + 1 : 0

            bestAttemptContent.title = "\(bestAttemptContent.title) [modified]"
            bestAttemptContent.badge = NSNumber(value: newUnreadMessages)
            let userInfo = bestAttemptContent.userInfo
            guard let info = userInfo["aps"] as? [AnyHashable: Any],
                let data = info["data"] as? [AnyHashable: Any],
                let chatId = data["chatId"] as? String else { return }

            let unreadMessagesInChat = userDefaults?.integer(forKey: chatId)
            let newUnreadMessagesInChat = unreadMessagesInChat != nil ? unreadMessagesInChat! + 1 : 0

            userDefaults?.set(newUnreadMessages, forKey: "unreadMessages")
            userDefaults?.set(newUnreadMessagesInChat, forKey: chatId)


            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)
        }
    }

}

我正在使用Pusher. 我发送的有效载荷：

{
   "aps":{
      "mutalbe-content":1,
      "content-available":1,
      "sound":"true",
      "alert":{
         "title":"Vera Pauw",
         "body":"test bericht"
      },
      "data":{
         "type":"test",
         "message":"test bericht",
         "chatId":"3b002aa6-1117-4206-b54f-8bc2bd689f1c",
         "fromId":"",
         "fromname":"Vera Pauw"
      }
   }
}

我成功收到通知，但它不会触发扩展代码。我尝试过多种方式进行调试，比如在运行应用程序后选择调试目标，或者从扩展目标运行应用程序但进程Notification Service总是说Waiting to Attach. 我尝试过使用我的推送通知有效负载，但这并没有改变结果。

有谁知道为什么会发生这种情况或我哪里出错了。

4

1 回答 1

5

您的通知有效负载绝对是问题的一部分。在您的问题中，有效负载是：

{
   "aps":{
      "mutalbe-content":1,
      "content-available":1,
      "sound":"true",
      "alert":{
         "title":"Vera Pauw",
         "body":"test bericht"
      },
      "data":{
         "type":"test",
         "message":"test bericht",
         "chatId":"3b002aa6-1117-4206-b54f-8bc2bd689f1c",
         "fromId":"",
         "fromname":"Vera Pauw"
      }
   }
}

密钥应该只包含 Apple的aps密钥。你的data字典应该在aps键之外。

如果有、或键，"content-available"则不应出现 - 通知不能既静默又面向用户。仅用于静默通知。alertbuttonsoundcontent-available

密钥也拼错了，这"mutalbe-content"就是您的扩展程序没有被激活的原因！

我看到很多人都有同样的问题，所以我编写了一个简单的推送通知验证工具，您可以使用它来解决这些问题。

根据您尝试完成的更正有效负载可能如下所示：

{
   "aps":{
      "mutable-content":1,
      "alert":{
         "title":"Vera Pauw",
         "body":"test bericht"
      }
   },
  "data":{
     "type":"test",
     "message":"test bericht",
     "chatId":"3b002aa6-1117-4206-b54f-8bc2bd689f1c",
     "fromId":"",
     "fromname":"Vera Pauw"
  }
}

试试看，看看扩展是否启动。

于 2018-09-19T18:28:33.857 回答