Swift Firebase HTTP推送通知

Question

我在这里找到了这个功能正常的功能。 我想将图像添加到通知中，但是我不知道如何使其显示在HTTP帖子中，或者我是否必须自定义通知服务/内容。 任何人都知道，如果只是向该函数添加参数，它将显示UIimage吗？

谢谢

func sendRequestPush()  {
    // create the request
    let url = URL(string: "https://fcm.googleapis.com/fcm/send")
    let request = NSMutableURLRequest(url: url!)
    request.httpMethod = "POST"
    request.setValue("key=putYourLegacyServerKeyHere", forHTTPHeaderField: "authorization")
    request.setValue("application/json", forHTTPHeaderField: "Content-Type")
    let parameters = ["to": "putYourFCMToken",
                               "priority": "high",
                               "notification": ["body":"Hello1", "title":"Hello world","sound":"default"]] as [String : Any]
    do {
        request.httpBody = try JSONSerialization.data(withJSONObject: parameters, options: .prettyPrinted) // pass dictionary to nsdata object and set it as request body
    } catch let error {
        print(error.localizedDescription)
    }
    let config = URLSessionConfiguration.default
    let session = URLSession(configuration: config)
    let dataTask = session.dataTask(with: request as URLRequest) { data,response,error in
        let httpResponse = response as? HTTPURLResponse
        if (error != nil) {
            print(error!)
        } else {
            print(httpResponse!)
        }
        guard let responseData = data else {
            print("Error: did not receive data")
            return
        }
        do {
            guard let responseDictionary = try JSONSerialization.jsonObject(with: responseData, options: [])
                as? [String: Any] else {
                    print("error trying to convert data to JSON")
                    return
            }
            print("The responseDictionary is: " + responseDictionary.description)
        } catch  {
            print("error trying to convert data to JSON")
            return
        }
        DispatchQueue.main.async {
            //Update your UI here
        }
    }
    dataTask.resume()
}