Need codes to communicate with server from an android phone

I am new to android, and i am trying to develop an app which sends GPS information of current location to a server and retrieve the related information from the datab开发者_开发技巧ase.

you need to learn the concept of webservices : and you need to learn the concept of sqlite to store DB locally:

http://www.anddev.org/parsing_xml_from_the_net_-_using_the_saxparser-t353.html

http://ferasferas.wordpress.com/2010/08/16/android-tutorial-%E2%80%93-using-sqlite-databases/