获取设备wifi的SSID

有时候需要获取iphone设备SSID信息。

ARC:

- (NSString *)getSSID {

    NSArray *networkInfos = (__bridge_transfer id)CNCopySupportedInterfaces();

    for (NSString *ifnam in networkInfos) {

        id info = (__bridge_transfer id)CNCopyCurrentNetworkInfo((__bridge CFStringRef)ifnam);

        if (info && [info count])

        {

            NSDictionary *dic = (NSDictionary *)info;

            return [dic valueForKey:@"SSID"];

        }

    }

    return nil;

}