一、申请NetworkExtension框架，NetworkExtension框架申请链接
二、配置工程
1.新建iCloud Containers以及App IDs配置(添加iCloud 和Wireless Accessory服务)之后向.entitlements文件里添加一个BOOL值为YES的字段 com.apple.developer.networking.HotspotHelper
三、实现代码
NSMutableDictionary *options = [[NSMutableDictionary alloc] init]; [options setObject:@"可用wifi" forKey:kNEHotspotHelperOptionDisplayName]; dispatch_queue_t queue = dispatch_queue_create("com.myapp.ex", NULL); BOOL returnType = [NEHotspotHelper registerWithOptions:options queue:queue handler: ^(NEHotspotHelperCommand * cmd) { //系统定时搜索附近的wifi以及切换wifi时会触发该block NEHotspotNetwork *network; [cmd createResponse:kNEHotspotHelperResultAuthenticationRequired]; if (cmd.commandType == kNEHotspotHelperCommandTypeEvaluate || cmd.commandType ==kNEHotspotHelperCommandTypeFilterScanList) { for (network in cmd.networkList) { NSLog(@"COMMAND TYPE After:%ld", (long)cmd.commandType); //network.secure\network.autoJoined\network.justJoined //对指定ssid做标记 if ([network.SSID isEqualToString:@"ssid"]|| [network.SSID isEqualToString:@"zjdljt"]) { double signalStrength = network.signalStrength; [network setConfidence:kNEHotspotHelperConfidenceHigh]; //设置wifi的密码，当连接该wifi时不用输入密码就可以连接wifi(从后台请求附近wifi以及密码) [network setPassword:@"0086985336"]; NEHotspotHelperResponse *response = [cmd createResponse:kNEHotspotHelperResultSuccess]; //当有多个分享wifi时，可以把wifi依次加入到数组中，并把数组作为setNetworkList的参数 [response setNetworkList:@[network]]; [response setNetwork:network]; [response deliver]; } } } }];参考资料：iOS 获取系统wifi列表,wifi信号强度,并给wifi设置密码,标签(副标题)
