c# - 通过 fcm c# 向 android 应用程序发送通知时不会出现通知

Question

我正在尝试通过 c# 代码将 GCM 推送通知（云消息传递）发送到我的 android 应用程序。当我运行此代码时，它运行成功。我没有收到任何错误，但应用程序没有收到通知。我想向所有设备发送通知，而不是向任何特定设备发送通知。

        public void SendMessage()
        {
            WebRequest tRequest = WebRequest.Create("https://fcm.googleapis.com/fcm/send");
            tRequest.Method = "post";
            //serverKey - Key from Firebase cloud messaging server  
            tRequest.Headers.Add(string.Format("Authorization: key={0}", "My Server Key"));
            //Sender Id - From firebase project setting  
            tRequest.Headers.Add(string.Format("Sender: id={0}", "SenderId"));
            tRequest.ContentType = "application/json";
            var payload = new
            {
                to = "android", //i want to send to all android devices.
                priority = "high",
                content_available = true,
                notification = new
                {
                    body = "Test",
                    title = "Test",
                    badge = 1
                },
                data = new
                {
                    key1 = "value1",
                    key2 = "value2"
                }

            };

            string postbody = JsonConvert.SerializeObject(payload).ToString();
            byte[] byteArray = Encoding.UTF8.GetBytes(postbody);
            tRequest.ContentLength = byteArray.Length;
            using (Stream dataStream = tRequest.GetRequestStream())
            {
                dataStream.Write(byteArray, 0, byteArray.Length);
                using (WebResponse tResponse = tRequest.GetResponse())
                {
                    using (Stream dataStreamResponse = tResponse.GetResponseStream())
                    {
                        if (dataStreamResponse != null) using (StreamReader tReader = new StreamReader(dataStreamResponse))
                        {
                                string sResponseFromServer = tReader.ReadToEnd(); //here i am getting message id but no notification.
                        }
                    }
                }
            }
        }

标签： c#androidgoogle-apifirebase-cloud-messaging