iOS 获取设备当前连接的WIFI的SSID和Wi

2024-06-30 20:11| 来源: 网络整理| 查看: 265

开发APP一般都会用到设备配网，获取当前设备的Wi-Fi 的SSID。那么如何获取呢？下面直接上代码：

第一步：添加SystemConfiguration.framework这个框架

第二步：头文件 //导入框架头文件 #import

#pragma 获取设备当前连接的WIFI的SSID - (NSString *) getCurrentWifi { NSString * wifiName = @""; CFArrayRef wifiInterfaces = CNCopySupportedInterfaces(); if (!wifiInterfaces) { wifiName = @""; } NSArray *interfaces = (__bridge NSArray *)wifiInterfaces; for (NSString *interfaceName in interfaces) { CFDictionaryRef dictRef = CNCopyCurrentNetworkInfo((__bridge CFStringRef)(interfaceName)); if (dictRef) { NSDictionary *networkInfo = (__bridge NSDictionary *)dictRef; wifiName = [networkInfo objectForKey:(__bridge NSString *)kCNNetworkInfoKeySSID]; CFRelease(dictRef); } } //CFRelease(wifiInterfaces); return wifiName; }

#import

#pragma mark - 获取当前Wi-Fi的IP - (NSString *)getIPAddress { NSString *address = @"error"; 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; } 升级到iOS13以后，发现之前获取WiFi名称的接口失效了，返回的都是固定值"WLAN"。这里可能是因为苹果对用户隐私保护问题，因为通过wifi信息可以定位到用户地理位置。所以iOS13以后如果想要继续获取WiFi名称，需要在调用接口前判断用户是否同意app使用地理位置信息。

步骤一：添加定位库

步骤二：添加位置权限在Info.plist文件中配置

NSLocationAlwaysAndWhenInUseUsageDescription 移动考勤需要使用您的位置信息 NSLocationAlwaysUsageDescription 移动考勤需要使用您的位置信息 NSLocationUsageDescription 移动考勤需要使用您的位置信息 NSLocationWhenInUseUsageDescription 移动考勤需要使用您的位置信息

步骤三：在控制中引入头文件，遵守代理

#import @interface EspViewController () @property (strong, nonatomic) CLLocationManager *locationManager;

步骤四：实现代理获取用户的定位授权重新获取SSID

- (void)viewDidLoad { [super viewDidLoad]; [self.view setBackgroundColor:[UIColor colorWithRed:250/255.0 green:250/255.0 blue:250/255.0 alpha:1]]; if(@available(iOS 13.0, *)){ [self getUserLocation]; } } #pragma mark - 定位授权代理方法 - (void)locationManager:(CLLocationManager *)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status { if (status == kCLAuthorizationStatusAuthorizedWhenInUse || status == kCLAuthorizationStatusAuthorizedAlways) { //再重新获取ssid [self getCurrentWifi]; } } - (void)getUserLocation{ if (!self.locationManager) { self.locationManager = [[CLLocationManager alloc] init]; } //如果用户第一次拒绝了，触发代理重新选择，要用户打开位置权限 [self.locationManager requestAlwaysAuthorization]; self.locationManager.delegate = self; self.locationManager.desiredAccuracy = kCLLocationAccuracyBest; self.locationManager.distanceFilter = 1.0f; [self.locationManager startUpdatingLocation]; }

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