Alert when connection becomes a WIFI or cellular network

- (void)reachabilityChanged:(NSNotification *)note {
    Reachability* reachability = [note object];
    NetworkStatus netStatus = [reachability currentReachabilityStatus];

    switch (netStatus) {
        case NotReachable:
            NSLog(@"Network unavailable");
            break;
        case ReachableViaWWAN:
            NSLog(@"Network is cellular");
            break;
        case ReachableViaWiFi:
            NSLog(@"Network is WIFI");
            break;
    }
}