Android : httppost xml using android

I need to POST data to server using android.. how should i do it?

this is the xml

<?xml version="1.0" encoding="utf-8"?>
<soap12:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap12="http://www.w3.org/2003/05/soap-envelope">
  <soap12:Body>
    <SetUserSettings xmlns="http://RealTimeCellService.com/">
      <email>test@test.com</email>
      <password>4444</password>
      <loginCode>611386</loginCode>
    </SetUserSettings>
  </soap12:Body>
</soap12:Envelope>

Thanks a lot Alex.