Easiest way to determine whether iPhone internet connection is available?

Follow following 3 easy steps –

Step 1: Include “SystemConfiguration.framework” framework in your project

Step 2: Included Apple’s Reachability.h and Reachability.m from Reachability example

Step 3: Now add this code anywhere in your .m.

Reachability* wifiReach = [[Reachability reachabilityWithHostName: @"www.apple.com"] retain];
NetworkStatus netStatus = [wifiReach currentReachabilityStatus];

switch (netStatus)
{
    case NotReachable:
    {
        NSLog(@"Access Not Available");
        break;
    }

    case ReachableViaWWAN:
    {
        NSLog(@"Reachable WWAN");
        break;
    }
    case ReachableViaWiFi:
    {
        NSLog(@"Reachable WiFi");
        break;
    }
}