I am trying to set my default zoom in in xcode - ios

Question

Below is my code. I am trying to have my map start off by being zoomed in to a certain number in xcode. It doesn't seem to work that way. Every time I open the map now, it's completely zoomed out to a point where you can see the entire continent. Any help will be much appreciated.
import UIKit
import MapKit
import CoreLocation
class YogaMap: UIViewController{
#IBOutlet weak var Yoga: MKMapView!
let locationManager = CLLocationManager()
let regionInMeters: Double = 100
override func viewDidLoad(){
super.viewDidLoad()
checkLocationServices()
}
func setupLocationManager(){
locationManager.delegate = self
locationManager.desiredAccuracy = kCLLocationAccuracyBest
}
func centerViewOnUserLocation(){
if let location = locationManager.location?.coordinate{
let region = MKCoordinateRegion.init(center: location, latitudinalMeters: regionInMeters, longitudinalMeters: regionInMeters)
Yoga.setRegion(region, animated: true)
}
}
func checkLocationServices(){
if CLLocationManager.locationServicesEnabled(){
setupLocationManager()
checkLocationAuthorization()
} else {
}
}
func checkLocationAuthorization(){
switch CLLocationManager.authorizationStatus(){
case .authorizedWhenInUse:
centerViewOnUserLocation()
break
case .denied:
break
case .notDetermined:
locationManager.requestWhenInUseAuthorization()
break
case .restricted:
break
case .authorizedAlways:
break
}
}
}
extension YogaMap: CLLocationManagerDelegate {
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
}
func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) {
}
}
Thanks

Answer 1

You should wait for location manager to return a location before trying to use centerViewOnUserLocation. Try moving your function call inside locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation])

Answer 2

You forgot call startUpdatingLocation in this function func setupLocationManager
func setupLocationManager(){
locationManager.delegate = self
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.startUpdatingLocation()
}
Center map view when your location update
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
centerViewOnUserLocation()
}