title: Real time sharing of GPS location
body: <p>I'm pretty new in the android world. I am wondering how can I get the position of my friends and display it on a map. More precisely, I don't know how to share the position of my friends and I. Maybe have to use a server or something like that ?</p>
  
  <p>Is it hard to code ?</p>
  
  <p>Thx,</p>
  
  <p>Arnaud</p>