Location Quickstart - codepath/ios_guides GitHub Wiki

Location

Step 1: Add the Location Framework

In build phases, add the location framework.

Step 2: Identifying the desired location permission

So the first thing you need to do is to add the appropriate keys to your Info.plist file:

• NSLocationWhenInUseUsageDescription — required if you call requestWhenInUseAuthorization().
• NSLocationAlwaysAndWhenInUseUsageDescription — required if you call requestAlwaysAuthorization() on iOS 11+ (the older NSLocationAlwaysUsageDescription is deprecated).

Note: requesting "Always" authorization on iOS 11 and later requires both keys to be present in Info.plist. If NSLocationWhenInUseUsageDescription is missing, requestAlwaysAuthorization() will silently fail and no permission prompt will be shown. Since Step 4 below calls requestAlwaysAuthorization(), add both keys.

Step 3: Create the location manager

In the app delegate,

import CoreLocation

@main
class AppDelegate: UIResponder, UIApplicationDelegate {
    var window: UIWindow?
    var locationManager: CLLocationManager! = CLLocationManager()

Step 4: Request permission

locationManager.requestAlwaysAuthorization()

Step 5: Start Updating Location

locationManager.startUpdatingLocation()

Step 6: Implement Location Delegate

func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
    guard let location = locations.first else { return }

    print(location)
}