How do I tell if a bonjour service is wi fi or bluetooth?

Question

I am building an app that sends information between two iPhones. The app is working great but the one problem I am having is that I have no way of telling whether bonjour is choosing wi-fi or bluetooth to make the connection. I would like to allow the user to be able to choose which they prefer. Also, is there way to programmatically tell is the device's bluetooth is on?

Answer 1

Bonjour is just a service discovery protocol - it doesn't care what kind of network you have. It will discover services across a mixture of networks (e.g. via bridges and routers), so it doesn't really make sense to try to map a service discovered via Bonjour to a single type of transport layer.