Location permission check and authorization

Question

I want my program to display the users location on the map. It was working at first then randomly stopped so i added the code below to try to fix it but I'm having problems. Thanks in advance!

    override func viewDidLoad()
    {
        super.viewDidLoad()
        self.locationManager.delegate = self
        self.locationManager.desiredAccuracy = kCLLocationAccuracyBest
        if CLLocationManager.locationServicesEnabled()
        {

            let status: CLAuthorizationStatus = CLLocationManager.authorizationStatus()
            if status == CLAuthorizationStatus.NotDetermined
            {
                locationManager.requestAlwaysAuthorization()
            }
            } else {

                print("locationServices disenabled")
            }
            locationManager.startUpdatingLocation()
            self.locationManager.startUpdatingLocation()
            self.mapView.showsUserLocation = true
            mapView.delegate = self
            centerMapOnLocation(initialLocation)
            addBoundry()
    }

Frenzy

What problems do You have? – Dann

We need more information regarding issues you are facing. Also I notice there are 2 calls to 'startUpdatingLocation' method of 'locationManager'. – Handbarrow

Did you set the required field in info.plist? – Dribble

This is the error I am getting: "Trying to start MapKit location updates without prompting for location authorization. Must call -[CLLocationManager requestWhenInUseAuthorization] or -[CLLocationManager requestAlwaysAuthorization] first." – Frenzy

Answer 1

You required to call,

locationManager.requestAlwaysAuthorization() 

as well

 locationManager.requestWhenInUseAuthorization()

to use location smoothly in foreground also!!!

and you should not need two instance to call startupdatinglocation. keep one. you should use instance or global variable instead of local to get location throughout the scope.

Update :

You have to set two keys in info.plist like, NSLocationAlwaysUsageDescription and NSLocationWhenInUseUsageDescription with it's usage description.

Electrophorus

Thanks I made those changes but I am still getting the error I commented above – Frenzy

Note that if you let the description key blank, your app will be rejected by Apple (mine got 08/17) – Monosyllable

You can't leave those plist descriptions blank anymore. – Darsey

@Darsey : Yeah! We can't leave it blank in latest updates. Updated answer. Thanks for suggestion! – Electrophorus

Answer 2

I was having the same issue, even with NSLocationAlwaysUsageDescription and NSLocationWhenInUseUsageDescriptionset in info.plist. My debugger told me to also set NSLocationAlwaysAndWhenInUseUsageDescription...so I did it. It worked!

Proportion

This fixed it for me as well. I wish apple would stop moving decisions like this around from version to version. – Curson

Answer 3

If you want the "WhenInUse" notification you should only add "Privacy - Location When In Use Usage Description" in your info.plist but if you want the "Always" access your info.plist should look like this info.plist screenshot:

You don't have to add any request authorization like requestAlwaysAuthorization or requestWhenInUseAuthorization

Rundlet

Answer 4

This is my code:

First import the library:

import CoreLocation

A little example:

        let status: CLAuthorizationStatus = CLLocationManager.authorizationStatus()
        if status == CLAuthorizationStatus.notDetermined || status == CLAuthorizationStatus.denied || status == CLAuthorizationStatus.restricted
        {
            locationManager?.requestAlwaysAuthorization()
        }

And don`t forget to add these permissions in the Info.plist:

Molten