CODEWITHSUNDEEP
iosswiftios-permissions
sinusGob
sinusGob

Reputation: 4313

How to check if user clicks no on NSLocationAlwaysAndWhenInUseUsageDescription Swift 3.2

When user is on MainViewController

override func viewDidLoad() {
        super.viewDidLoad()
        locationManager.delegate = self
        locationManager.requestAlwaysAuthorization()
        locationManager.requestWhenInUseAuthorization()
}

viewDidLoad() will run and the alert will appear

enter image description here

<key>NSLocationAlwaysAndWhenInUseUsageDescription</key>
        <string>Accessing user location to determine the nearest pickup location</string>
        <key>NSLocationWhenInUseUsageDescription</key>
        <string>Accessing user location to determine the nearest pickup location</string>

The main question is, if user clicks Don't allow, how do I check programmtically? for example

// Example code snippet, not from apple officials
if NSlocation is nil then I want to do some alert

Upvotes: 1

Views: 535

Answers (2)

Michael Hulet
Michael Hulet

Reputation: 3499

If the user chooses to deny your app access to location services, CLLocationManager.authorizationStatus() will be .denied (though you should also watch out for .restricted. If you'd like to be notified when the user chooses whether or not to allow or deny your app, you can make yourself your location manager's delegate and implement the proper method:

class MainViewController: CLLocationManagerDelegate{

    let locationManager = CLLocationManager()

    override func viewDidLoad() -> Void{
        super.viewDidLoad()
        locationManager.delegate = self
    }

    func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) -> Void{
        switch status{
            case .authorizedAlways, .authorizedWhenInUse:
                // You're allowed to use location services
            case .denied, .restricted:
                // You can't use location services
            default:
                // This case shouldn't be hit, but is necessary to prevent a compiler error
        }
    }
}

Upvotes: 3

iVarun
iVarun

Reputation: 6611

Use below delegate method of CLLocationManager to check user click on Don't allow button in permission alert.

func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) {
        switch status {
        case .denied:
           print("Show you own alert here")
            break
        }
    }

To redirect user in location settings follow below:

  1. Add URL Types "prefs" like below image enter image description here

  2. Write this code on button action:

    UIApplication.sharedApplication().openURL(NSURL(string:"prefs:root=LOCATION_SERVICES")!)

Upvotes: 0

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