iOS获取wifi信息ssid和bssid

bssid可以用来判断设备是否是在同一WiFi，ssid用来展示WiFi名称。
获取wifi信息比较简单，直接贴代码。
首先引入

#import <SystemConfiguration/CaptiveNetwork.h>

获取代码

+ (NSDictionary *)wifiInfo {
    NSArray *ifs = (__bridge_transfer id)CNCopySupportedInterfaces();
    NSLog(@"interfaces:%@",ifs);
    NSDictionary *info = nil;
    for (NSString *ifname in ifs) {
        info = (__bridge_transfer NSDictionary *)CNCopyCurrentNetworkInfo((__bridge CFStringRef)ifname);
        NSLog(@"%@ => %@",ifname,info);
    }
    return info;
}

日志打印

2016-11-10 16:15:06.752 GTRRemoteSTB[6051:3034112] interfaces:(
    en0
)
2016-11-10 16:15:14.689 GTRRemoteSTB[6051:3034112] en0 => {
    BSSID = "b0:34:95:f1:59:da";
    SSID = GTR;
    SSIDDATA = <475452>;
}