这就是我从后端服务器向 Google Cloud Messaging 发送推送通知的方式。
public async Task<bool> SendNotification(int id, int index, string from, string text, string tag)
{
try
{
var payload = new
{
data = new
{
message = new
{
// this part can be anything you want
id,
index,
from,
text,
when = DateTime.UtcNow.ToString("s") + "Z"
}
}
};
var json = JsonConvert.SerializeObject(payload);
await _hubClient.SendGcmNativeNotificationAsync(json, tag);
return true;
}
catch (ArgumentException ex)
{
// This is expected when an APNS registration doesn't exist.
return false;
}
然后在您的应用 Intent Service 中,您可以解析 JSON“消息”:
protected override void OnMessage(Context context, Intent intent)
{
var message = intent.Extras.GetString("message");
// message is JSON payload
// { "id":"someid", "index":"1", "text":"some text","from"... }
var json = JObject.Parse(message);
var id = json["id"].ToString();
var index = json["index"].ToString();
var text = json["text"].ToString();
var from = json["from"].ToString();
var when = DateTime.Parse(json["when"].ToString());
// do whatever you want with your values here
}