MapKit View not zooming in to users location - ios

Question

In my application I have a MKMapKit view and when my application starts, if the user allows location services, I want the Map to zoom into the user's location. The code I wrote is:
override func viewDidLoad() {
super.viewDidLoad()
mapKitView.delegate = self
mapKitView.showsUserLocation = true
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.delegate = self
if (CLLocationManager.locationServicesEnabled()) {
locationManager = CLLocationManager()
locationManager.delegate = self
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.requestAlwaysAuthorization()
locationManager.requestWhenInUseAuthorization()
}
locationManager.requestWhenInUseAuthorization()
if CLLocationManager.locationServicesEnabled() {
locationManager.startUpdatingLocation()
}
DispatchQueue.main.async {
self.locationManager.startUpdatingLocation()
}
}
func locationManager(manager: CLLocationManager!, didUpdateLocations locations: [AnyObject]!) {
let noLocation = CLLocationCoordinate2D()
let viewRegion = MKCoordinateRegionMakeWithDistance(noLocation, 200, 200)
mapKitView.setRegion(viewRegion, animated: false)
}
In my app, it shows the users location, but does not animate and zoom in.

Answer 1

Use the user's location to calculate the view region and change the animated parameter to true:
if let location = mapKitView.userLocation.location {
let viewRegion = MKCoordinateRegionMakeWithDistance(location, 200, 200)
mapKitView.setRegion(viewRegion, animated: true)
}

Answer 2

In Swift 3.0, try my code in your didUpdateLocation method.
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation])
{
//get location cordinate
let locValue:CLLocationCoordinate2D = manager.location!.coordinate
print(locValue)
//set updating location stop
locationManager.stopUpdatingLocation()
let location = locations.last! as CLLocation//create object of CLLocation
//get location cordinate
let center = CLLocationCoordinate2D(latitude: location.coordinate.latitude, longitude: location.coordinate.longitude)
//set map zooming using region
let region = MKCoordinateRegion(center: center, span: MKCoordinateSpan(latitudeDelta: 0.01, longitudeDelta: 0.01))
self.mapView.setRegion(region, animated: true)
}
I hope it's work #Rahul Bir

Answer 3

In Swift 3.0 you should use this code if you want to zoom map Kit on the starting view of the map view.
var zoomIn = false
var zoomAnnotation:MKAnnotation
func mapView(mapView: MKMapView, regionDidChangeAnimated animated: Bool) {
if let annotation = zoomAnnotation where zoomIn == true {
let region = MKCoordinateRegion(center: zoomAnnotation.coordinate, span: MKCoordinateSpan(latitudeDelta: 0.075, longitudeDelta: 0.075))
mapView.setRegion(region, animated: true)
zoomIn = false
}
}