iPhone Wifi on or off?

Question

Within iOS framework, how can one check if the Wifi radio is enabled by the user or not? Please note that I\'m not interested in the reachability through Wifi but rather if

Answer 1

Swift 2.3 version

func isWifiEnabled() -> Bool {
    var addresses = [String]()

    var ifaddr : UnsafeMutablePointer = nil
    guard getifaddrs(&ifaddr) == 0 else { return false }

    var ptr = ifaddr
    while ptr != nil { defer { ptr = ptr.memory.ifa_next }
         addresses.append(String.fromCString(ptr.memory.ifa_name)!)
    }

    var counts:[String:Int] = [:]

    for item in addresses {
        counts[item] = (counts[item] ?? 0) + 1
    }

    freeifaddrs(ifaddr)
    return counts["awdl0"] > 1 ? true : false
}

Swift 4.0 version

func isWifiEnabled() -> Bool {
    var addresses = [String]()

    var ifaddr : UnsafeMutablePointer?
    guard getifaddrs(&ifaddr) == 0 else { return false }
    guard let firstAddr = ifaddr else { return false }

    for ptr in sequence(first: firstAddr, next: { $0.pointee.ifa_next }) {
        addresses.append(String(cString: ptr.pointee.ifa_name))
    }

    var counts:[String:Int] = [:]

    for item in addresses {
        counts[item] = (counts[item] ?? 0) + 1
    }

    freeifaddrs(ifaddr)
    guard let count = counts["awdl0"] else { return false }
    return count > 1
}