CLLocationManager requestWhenInUseAuthorization() not working

Question

I am trying to use location services in my iOS app but for some reason requestWhenInUseAuthorization is not working. When the user first uses the app, the promp

Answer 1

First you need to add NSLocationWhenInUseUsageDescription or NSLocationAlwaysUsageDescription(if you want to use in background) in your info.plist file. See the following image:

Next, in your swift file, you need to call either locationManager.requestWhenInUseAuthorization() or locationManager.requestAlwaysAuthorization() in your viewDidLoad() method.

Finally, you can do a mapView.camera = GMSCameraPosition(target: locations.last!.coordinate, zoom: 15, bearing: 0, viewingAngle: 0) in your locationManager delegate method.

Sample code:

class ViewController: UIViewController, CLLocationManagerDelegate {

    var locationManager = CLLocationManager();

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.

        var camera = GMSCameraPosition.cameraWithLatitude(-33.86,
            longitude: 151.20, zoom: 6)
        var mapView = GMSMapView.mapWithFrame(CGRectZero, camera: camera)
        mapView.myLocationEnabled = true
        self.view = mapView

        locationManager.delegate = self
        locationManager.distanceFilter = kCLDistanceFilterNone
        locationManager.desiredAccuracy = kCLLocationAccuracyBest
        if #available(iOS 8.0, *) {
            print("iOS >= 8.0.0")
            locationManager.requestAlwaysAuthorization()
        }
        locationManager.startUpdatingLocation()

    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

    func locationManager(manager: CLLocationManager!, didUpdateLocations locations: [AnyObject]!) {
        println(locations.last)

        var mapView = self.view as! GMSMapView

        mapView.camera = GMSCameraPosition(target: locations.last!.coordinate, zoom: 15, bearing: 0, viewingAngle: 0)
    }
}

You can will this post, for more details about LocationManager change in iOS 8.