iOS获取用户的IP地址

最近有一个需求 ,需要获取用户的IP地址,在网上找了好多方法 ,找了一个比较简单的, 分享出来.

首先 要先加这几个库

#import<ifaddrs.h>

#import<sys/socket.h>

#import<arpa/inet.h>

获取用户地址 代码如下

NSString *address = @"an error occurred when obtaining ip address";

struct ifaddrs *interfaces = NULL;

struct ifaddrs *temp_addr = NULL;

int success = 0;

success = getifaddrs(&interfaces);

if (success == 0) { // 0表示获取成功

temp_addr = interfaces;

while (temp_addr != NULL) {

if( temp_addr->ifa_addr->sa_family == AF_INET) {

// Check if interface is en0 which is the wifi connection on the iPhone

if ([[NSString stringWithUTF8String:temp_addr->ifa_name] isEqualToString:@"en0"]) {

// Get NSString from C String

address = [NSString stringWithUTF8String:inet_ntoa(((struct sockaddr_in *)temp_addr->ifa_addr)->sin_addr)];

}

}

temp_addr = temp_addr->ifa_next;

}

}

freeifaddrs(interfaces);

SLog(@"用户的IP地址=========================%@",address);

使用的时候只需要复制粘贴 把代码粘过去即可