请参见 http://developer.android.com/guide/google/gcm/index.html 。您需要实现GCM。

Please see http://developer.android.com/guide/google/gcm/index.html. You need to implement GCM.

编辑：

要得到通知，即使应用程序在后台，看到Android GCM（推送通知）：如果应用程序停止设备没有收到通知

To get notification even if app is in background, see Android GCM (push notification): device doesn't receive notification if application is stopped.

请参阅的Andr​​oid GCM基本实现，的 http://developer.android.com/guide/google/gcm/demo.html ＆安培; How设置谷歌云端通讯的Andr​​oid？

See Android GCM basic implementation, http://developer.android.com/guide/google/gcm/demo.html & How to setup Google Cloud Messaging for Android?