Request permissions again after user denies location services?

Question

I track the user\'s location and ask for permission when my load first loads using this:

locationManager.requestAlwaysAuthorization()
locationManager.startUp         


        

Answer 1

The permission pop up only shows once. So we have to redirect users to Settings after that. Here comes the code in Swift:

 import CoreLocation 
 @IBAction func userDidClickButton(_ sender: Any) {

    // initialise a pop up for using later
    let alertController = UIAlertController(title: "TITLE", message: "Please go to Settings and turn on the permissions", preferredStyle: .alert)
    let settingsAction = UIAlertAction(title: "Settings", style: .default) { (_) -> Void in
        guard let settingsUrl = URL(string: UIApplicationOpenSettingsURLString) else {
            return
        }
        if UIApplication.shared.canOpenURL(settingsUrl) {
            UIApplication.shared.open(settingsUrl, completionHandler: { (success) in })
         }
    }
    let cancelAction = UIAlertAction(title: "Cancel", style: .default, handler: nil)
    alertController.addAction(cancelAction)
    alertController.addAction(settingsAction)

    // check the permission status
    switch(CLLocationManager.authorizationStatus()) {
        case .authorizedAlways, .authorizedWhenInUse:
            print("Authorize.")
            // get the user location
        case .notDetermined, .restricted, .denied:
            // redirect the users to settings
            self.present(alertController, animated: true, completion: nil)
    }
}