双卡的时候怎么获取是哪个是流量卡

[xhp281]

No description provided.

[popor]

/// https://www.jianshu.com/p/f9c8d03c6579

• (NSArray<CTCarrier *> *)simCardNumInPhone {
  //NSMutableArray * array = [NSMutableArray<CTCarrier *> new];
  CTTelephonyNetworkInfo *networkInfo = [[CTTelephonyNetworkInfo alloc] init];

  //NSLogId(networkInfo.dataServiceIdentifier);
  //NSLogId(networkInfo.currentRadioAccessTechnology); // CTRadioAccessTechnologyLTE, 4G服务

  if (@available(iOS 12.0, *)) {
  NSDictionary *ctDict = networkInfo.serviceSubscriberCellularProviders;
  if ([ctDict allKeys].count > 1) {
  NSArray *keys = [ctDict allKeys];

        NSString * keyDefault = @"";
        if (@available(iOS 13, *)) {
            keyDefault = networkInfo.dataServiceIdentifier;
        }
        
        CTCarrier *carrier1 = nil;
        CTCarrier *carrier2 = nil;
        if ([keyDefault isEqualToString:keys.firstObject]) {
            carrier1 = [ctDict objectForKey:keys.firstObject];
            carrier2 = [ctDict objectForKey:keys.lastObject];
        } else {
            carrier2 = [ctDict objectForKey:keys.firstObject];
            carrier1 = [ctDict objectForKey:keys.lastObject];
        }
        
        if (carrier1.mobileCountryCode.length && carrier2.mobileCountryCode.length) {
            return @[carrier1, carrier2];
        }else if (carrier1.mobileCountryCode.length) {
            return @[carrier1];
        }else if (carrier2.mobileCountryCode.length) {
            return @[carrier2];
        }else {
            return nil;
        }
    }else if ([ctDict allKeys].count == 1) {
        NSArray *keys = [ctDict allKeys];
        CTCarrier *carrier1 = [ctDict objectForKey:[keys firstObject]];
        if (carrier1.mobileCountryCode.length) {
            return @[carrier1];
        }else {
            return nil;
        }
    }else {
        return nil;
    }
  

  }else {
  CTCarrier *carrier = [networkInfo subscriberCellularProvider];
  NSString *carrier_name = carrier.mobileCountryCode;
  if (carrier_name.length) {
  return @[carrier];
  }else {
  return nil;
  }
  }
  }

比较 networkInfo.dataServiceIdentifier 和 [ctDict allKeys];就可以了