如何访问传入推送通知的值

Question

如何访问传入推送通知的标题？

    func userNotificationCenter(_ center: UNUserNotificationCenter,
                            willPresent notification: UNNotification,
                            withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
    let userInfo = notification.request.content.userInfo

    // With swizzling disabled you must let Messaging know about the message, for Analytics
    // Messaging.messaging().appDidReceiveMessage(userInfo)

    // Print message ID.
    if let messageID = userInfo[gcmMessageIDKey] {
        print("Message ID: \(messageID)")
        self.numberOfNotifications += 1
    }

    // Print full message.
    print("Message: ", userInfo)

    //completionHandler([])

    // Change this to your preferred presentation option
    let data = userInfo.values as []//I would like to access the data here...

    completionHandler([.alert, .sound])
}

在上面我收到一条通知，我想检查特定文本的标题。如何以字符串形式访问测试来执行此操作？

Answer 1

标题键将在 aps["alert"] 字典中。 典型的推送通知消息如下所示

{
    "aps" : {
        "alert" : {
            "title" : "Sample Title",
            "body" : "Hello World"
        },
        "badge" : 5
    }
}

消息可以这样访问-

guard let aps = userInfo["aps"] as? [String: AnyObject],
    let alert = aps["alert"] as? [String:Any],
    let body = alert["body"] as? String,
    let title = alert["title"] as? String
else {
  // handle any error here
  return
}

有关更多信息，您可以查看Apple 提供的文档。

Answer 2

我用这个解决了我的问题：

        let data = userInfo["aps"] as? [String: AnyObject]
    if let alert = data?["alert"] as? [String: AnyObject] {
        completionHandler([])
    } else {
        completionHandler([.alert, .sound])
    }