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typedef enum {
   NETWORK_TYPE_NONE= 0,
   NETWORK_TYPE_WIFI= 1,
   NETWORK_TYPE_3G= 2,
   NETWORK_TYPE_2G= 3,
}NETWORK_TYPE;
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(int)dataNetworkTypeFromStatusBar {

UIApplication app = [UIApplicationsharedApplication];
   NSArray subviews = [[[app valueForKey:@"statusBar"] valueForKey:@"foregroundView"] subviews];
   NSNumber *dataNetworkItemView = nil;
for (id subview in subviews) {
       if([subview isKindOfClass:[NSClassFromString(@"UIStatusBarDataNetworkItemView") class]]) {
           dataNetworkItemView = subview;
           break;
       }
   }
int netType = NETWORK_TYPE_NONE;
NSNumber * num = [dataNetworkItemView valueForKey:@"dataNetworkType"];
if (num == nil) {

   netType = NETWORK_TYPE_NONE;


 
}else{
int n = [num intValue];
if (n == 0) {
           netType = NETWORK_TYPE_NONE;
       }elseif (n == 1){
           netType = NETWORK_TYPE_2G;
       }elseif (n == 2){
           netType = NETWORK_TYPE_3G;
       }else{
           netType = NETWORK_TYPE_WIFI;
       }
}
return netType;
}</pre>