iOS development how to get the current surrounding WiFi list and intensity within the app and to control the WiFi switch within the app

Through the official API can get to the WiFi information, implementation code:

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- (id)fetchSSIDInfo {      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; }      }      returninfo;  }

As for the switch WiFi, is a user's operation, on the non-jailbreak machine, third-party applications are unable to achieve this function.

iOS development how to get the current surrounding WiFi list and intensity within the app and to control the WiFi switch within the app