1.iOS 13 获取wifi名称需要先获取一下位置信息，可能是苹果对用户隐私的保护

NSString* phoneVersion = [[UIDevice currentDevice] systemVersion];

  CGFloat version = [phoneVersion floatValue];

  // 如果是iOS13 未开启地理位置权限 需要提示一下

  if([CLLocationManager authorizationStatus] == kCLAuthorizationStatusNotDetermined && version >= 13) {

    self.locationManager = [[CLLocationManager alloc] init];

    [self.locationManager requestWhenInUseAuthorization];

  }

2.工程文件导入

#import <SystemConfiguration/CaptiveNetwork.h>

3.实现如下方法，可返回wifi名称

- (NSString *)currentWifiSSID

{

    NSString*ssid =nil;

    NSArray *ifs = (__bridge  id)CNCopySupportedInterfaces();

    for(NSString*ifnameinifs) {

        NSDictionary*info = (__bridgeid)CNCopyCurrentNetworkInfo((__bridgeCFStringRef)ifname);

        if(info[@"SSID"])

        {

            ssid = info[@"SSID"];

        }else{

            if(info[@"SSIDD"])

            {

                ssid = info[@"SSID"];

            }

        }

    }

    returnssid;

}