id	title	brief	sample	sdk
5FB6747E-70A7-0410-2C5C-60870D775100	Detect if Network is Available	This recipe shows how to detect the type of network connection that is in use.	title url Reachability Sample /samples/ReachabilitySample	title url Reachability Sample http://developer.apple.com/library/ios/#samplecode/Reachability/Introduction/Intro.html

Recipe

The Reachability sample provides a static class named Reachability that can be used to determine network status. Add a copy of this class to your project, and then use the static methods it provides.

• To see if a web site is available you can check like this:

if(!Reachability.IsHostReachable("http://google.com")) {
    // Put alternative content/message here
}
else
{
    // Put Internet Required Code here
}

• To check what type of internet connection is available, use the static method Reachability.InternetConnectionStatus():

NetworkStatus internetStatus = Reachability.InternetConnectionStatus();

Reachability.InternetConnectionStatus returns the enum NetworkStatus which provides some information about the network connection that will be used for internet connectivity:

public enum NetworkStatus
{
       NotReachable,
       ReachableViaCarrierDataNetwork,
       ReachableViaWiFiNetwork
}