Android XML web service username and password validation

Basically I've not done this be开发者_JS百科fore and most of what I've found has not really been specific to me. What I am trying to do is have my Username and Password textfields validated by an external source (in this case SOAP, XML web service). Is there any tutorials specific to online username/password validation for XML/Soap?

You can do this using KSoap2.

See:

http://code.google.com/p/ksoap2-android/

and:

https://stackoverflow.com/questions/tagged/ksoap2