title: How to communicate two android devices?
body: <p>Hi guys could any one help me a little bit, I'm making an android app, for cabs request, but I need a way to send to the driver app, an alert where he accepts the invitation to pick up the client, if he choose the accept button, and alert pops up on the client app telling him that the driver is on the way :) Thanks, I think i need for Threads to me always watching for these client notifications.</p>