判断 获取 移动 联通 网络 类型

+ (NSString*)getCarrier:(NSString*)imsi
{

if (imsi == nil || [imsi isEqualToString:@"SIM Not Inserted"] ) {

return @"Unknown";

}

else {

if ([[imsi substringWithRange:NSMakeRange(0, 3)] isEqualToString:@"460"]) {

NSInteger MNC = [[imsi substringWithRange:NSMakeRange(3, 2)] intValue];

switch (MNC) {

case 00:

case 02:

case 07:

return @"China Mobile";

break;

case 01:

case 06:

return @"China Unicom";

break;

case 03:

case 05:

return @"China Telecom";

break;

case 20:

return @"China Tietong";

break;

default:

break;

}

}

}

return @"Unknown";

}

须引入头文件
#import "UIDevice-IOKitExtensions.h"

#include <sys/types.h>

#include <sys/sysctl.h>

#import <mach/mach_host.h>

#include <netinet/in.h>

#include <arpa/inet.h>

#include <netdb.h>

#include <ifaddrs.h>

#include <sys/socket.h>

#include <net/if.h>

#include <net/if_dl.h>

#include <ifaddrs.h>