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導(dǎo)入頭文件
#import <ifaddrs.h> #import <arpa/inet.h> #import <SystemConfiguration/CaptiveNetwork.h>
核心代碼:
+ (nullable NSString*)getCurrentLocalIP { NSString *address = nil; struct ifaddrs *interfaces = NULL; struct ifaddrs *temp_addr = NULL; int success = 0; // retrieve the current interfaces - returns 0 on success success = getifaddrs(&interfaces); if (success == 0) { // Loop through linked list of interfaces 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; } } // Free memory freeifaddrs(interfaces); return address; }
+ (nullable NSString *)getCurreWiFiSsid { NSArray *ifs = (__bridge_transfer id)CNCopySupportedInterfaces(); NSLog(@"Supported interfaces: %@", 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 [(NSDictionary*)info objectForKey:@"SSID"]; }
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