iOS 获取wifi信息

#import<SystemConfiguration/CaptiveNetwork.h>

- (void)fetchSSIDInfo{

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

NSLog(@"支持的接口:%@",ifs);

id info = nil;

for (NSString *ifnam in ifs) {

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

NSLog(@"%@ => %@",ifnam,info);

if (info && [info count]) {

break;

}

}

}