Get SSID in Swift 2

Question

Im trying to use this code to get SSID

import Foundation
import SystemConfiguration.CaptiveNetwork

public class SSID {
    class func getSSID() -> String         


        

Answer 1

Grabbing WiFi Network SSID and BSSID in Swift

I have seen a lot of versions of this very popular question using the SystemConfiguration framework. Reading through this list of answers I've found that they're all over the place. Unsafe-bit casting, magic strings, weird coercion. Any time an API returns CFArray or CFDictionary use toll-free bridging to get an NS{Array,Dictionary}. It allows you to avoid some of the uglier aspects (in the context of Swift) of CoreFoundation. Also you should use the constants defined in the header for the SSID and BSSID dictionary values. Absolutely no need for the Unsafe types here, all of the data types are well-defined. That said, the CaptiveNetwork version of this code is deprecated in iOS 14 and it is recommended you use the NetworkExtension framework instead.

NEHotspotNetwork

import NetworkExtension

NEHotspotNetwork.fetchCurrent { hotspotNetwork in
    if let ssid = hotspotNetwork?.ssid {
        print(ssid)
    }
}

Deprecated - CaptiveNetwork Method

import SystemConfiguration.CaptiveNetwork

func getWiFiNetwork() -> (ssid: String, bssid: String)?
{
    var wifiNetwork: (ssid: String, bssid: String)?
    if let interfaces = CNCopySupportedInterfaces() as NSArray? {
        for interface in interfaces {
            let name = interface as! CFString
            if let interfaceData = CNCopyCurrentNetworkInfo(name) as NSDictionary? {
                if let ssid = interfaceData[kCNNetworkInfoKeySSID] as? String,
                    let bssid = interfaceData[kCNNetworkInfoKeyBSSID] as? String {
                    wifiNetwork = (ssid: ssid, bssid: bssid)
                }
            }
        }
    }
    
    return wifiNetwork
}

Permissions - CoreLocation

In terms of user permissions you have possibilities, but you need one of four defined in the documentation for CNCopyCurrentNetworkInfo or fetchCurrent - for most cases I assume you will need to add CoreLocation and ask for permission to use the user's location. For example, Privacy - Location When In Use Usage Description in the Info.plist needs a reason for why you require the user's location and then you must make the call to request the user authorization dialog.

    import CoreLocation

    CLLocationManager().requestWhenInUseAuthorization()

Entitlements

Your app also need the entitlement - com.apple.developer.networking.wifi-info which is added in Signing and Capabilities section of the project and is called Access WiFi Information. When using NEHotspotNetwork method there is an additional Network Extensions entitlement required.