Objective-c 获取当前Wi-Fi

获取当前wifi：

ios9.0之前

---

＃import <SystemConfiguration/captiveNetwork.h>

NSArray *wifiArr = CFBridgingRelease(CNCopySupportedInterfaces());

NSLog(@"%@", wifiArr);

id info = nil;

for (NSString *wifi in wifiArr) {

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

        NSLog(@"%@=>%@", wifi, info);

        if (info && [info count]) {

                break;

        }

}

iOS9.0之后

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使用<NetworkExtension/NEHotspotHelper.h>代替了之前的<SystemConfiguration/captiveNetwork.h>

详情参考iOS 9 NEHotspotHelper 的NetworkExtension使用