获取当前连接的wifi的名字

先添加SystemConfiguration.framework库文件，并包含头文件

#import<SystemConfiguration/CaptiveNetwork.h>

- (NSString*)getWifiName

{

NSString*wifiName =nil;

CFArrayRefwifiInterfaces =CNCopySupportedInterfaces();

if(!wifiInterfaces) {

returnnil;

}

NSArray*interfaces = (__bridgeNSArray*)wifiInterfaces;

for(NSString*interfaceNameininterfaces) {

CFDictionaryRefdictRef =CNCopyCurrentNetworkInfo((__bridgeCFStringRef)(interfaceName));

if(dictRef) {

NSDictionary*networkInfo = (__bridgeNSDictionary*)dictRef;

NSLog(@"network info -> %@", networkInfo);

wifiName = [networkInfoobjectForKey:(__bridgeNSString*)kCNNetworkInfoKeySSID];

CFRelease(dictRef);

}

}

CFRelease(wifiInterfaces);

returnwifiName;

}