How to use smack 4.1.4 for Android - Googlr Cloud Messaging

Help me please. How to use smack 4.1.4 for Android Googlr Cloud Messaging. Please, write example.

https://developers.google.com/cloud-messaging/ccs

username - What need write?

password - API key, need write?

setServiceName - What need write?

setHost - What need write?

setPort - 5236 or 5235 need ?

I see documentation:

XMPPTCPConnectionConfiguration config = XMPPTCPConnectionConfiguration.builder()

.setUsernameAndPassword(“username”, “password”)

.setServiceName(“jabber.org”)

.setHost(“earl.jabber.org”)

.setPort(8222)

.build();

AbstractXMPPConnection conn2 = new XMPPTCPConnection(config);

conn2.connect();