转:http://blog.csdn.net/marujunyy/article/details/16843173
首先需要 #import <SystemConfiguration/CaptiveNetwork.h>
- + (id)fetchSSIDInfo
- {
- NSArray *ifs = (id)CNCopySupportedInterfaces();
- NSLog(@"%s: Supported interfaces: %@", __func__, ifs);
- id info = nil;
- for (NSString *ifnam in ifs) {
- info = (id)CNCopyCurrentNetworkInfo((CFStringRef)ifnam);
- NSLog(@"%@ => %@", ifnam, info);
- if (info && [info count]) { break; }
- [info release];
- }
- [ifs release];
- return [info autorelease];
- }
ARC 版本:
- + (id)fetchSSIDInfo {
- NSArray *ifs = (__bridge_transfer id)CNCopySupportedInterfaces();
- NSLog(@"%s: Supported interfaces: %@", __func__, 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; }
- }
- return info;
- }