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  • How to check the Network availability for 3G and 4G connection

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    Following code will help in you to check the network availability for 3G and 4G connection

    const char *host_name = "google.com";
        BOOL _isDataSourceAvailable = NO;
        Boolean success;
    
        //Creates a reachability reference to the specified
        //network host or node name.
        SCNetworkReachabilityRef reachability =
        SCNetworkReachabilityCreateWithName(NULL,host_name);
    
        //Determines if the specified network target is reachable
        //using the current network configuration.
        SCNetworkReachabilityFlags flags;
    
        success = SCNetworkReachabilityGetFlags(reachability, &flags);
        _isDataSourceAvailable = success &&
        (flags & kSCNetworkFlagsReachable) &&
        !(flags & kSCNetworkFlagsConnectionRequired);
    
        CFRelease(reachability);
        return _isDataSourceAvailable; 
    

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