iPhones OS: how to programmatically differentiate iPad 3G from iPad Wi-Fi?

Question

Is there any property or other mechanism in iPhone OS to check during runtime whether application is running on iPad 3G or iPad Wi-Fi? Seems like UIDevice class does not provide anything like that.

My application is using internet access extensively and I would like to explicitly warn user that on 3G delays or additional costs can be expected OR even ban application from running on iPad 3G with some fancy popup.

Answer 1

I assume that other than 3G networking capabilities, there is no need to make a difference. Using Reachability.h class provided by Apple you can check if internet connection is available and if it is Mobile network or Wireless network.

Sample code here: http://developer.apple.com/iphone/library/samplecode/Reachability/Introduction/Intro.html

The Reachability class provides the following values:

ReachableViaCarrierDataNetwork, ReachableViaWiFiNetwork or NotReachable.