Check if location services are enabled

Question

I\'ve been doing some research about CoreLocation. Recently, I encountered a problem that has been covered elsewhere, but in Objective C, and for iOS 8.

I feel kinda

Answer 1

Here is the format Apple recommends.

  switch CLLocationManager.authorizationStatus() {
      case .notDetermined:
         // Request when-in-use authorization initially
         break
      case .restricted, .denied:
         // Disable location features
         break
      case .authorizedWhenInUse, .authorizedAlways:
         // Enable location features
         break
      }

Here is a complete example.

This includes an AlertView with a button to take the user to the Settings screen if previously denied access.

import CoreLocation
let locationManager = CLLocationManager()

class SettingsTableViewController:CLLocationManagerDelegate{

    func checkUsersLocationServicesAuthorization(){
        /// Check if user has authorized Total Plus to use Location Services
        if CLLocationManager.locationServicesEnabled() {
            switch CLLocationManager.authorizationStatus() {
            case .notDetermined:
                // Request when-in-use authorization initially
                // This is the first and the ONLY time you will be able to ask the user for permission
                self.locationManager.delegate = self
                locationManager.requestWhenInUseAuthorization()
                break

            case .restricted, .denied:
                // Disable location features
                switchAutoTaxDetection.isOn = false
                let alert = UIAlertController(title: "Allow Location Access", message: "MyApp needs access to your location. Turn on Location Services in your device settings.", preferredStyle: UIAlertController.Style.alert)

                // Button to Open Settings
                alert.addAction(UIAlertAction(title: "Settings", style: UIAlertAction.Style.default, handler: { action in
                    guard let settingsUrl = URL(string: UIApplication.openSettingsURLString) else {
                        return
                    }
                    if UIApplication.shared.canOpenURL(settingsUrl) {
                        UIApplication.shared.open(settingsUrl, completionHandler: { (success) in
                            print("Settings opened: \(success)") 
                        })
                    }
                }))
                alert.addAction(UIAlertAction(title: "Ok", style: UIAlertAction.Style.default, handler: nil))
                self.present(alert, animated: true, completion: nil)

                break

            case .authorizedWhenInUse, .authorizedAlways:
                // Enable features that require location services here.
                print("Full Access")
                break
            }
        }
    }
}