Apple Map Integration in Swift

In this blog, we will learn about how to integrate apple map in swift.

Apple provides MKMapView class for working with map. This class displays maps and provides interface to navigate map content.

Please follow below steps to add Apple map in your project.

Step 1 : Add MapView in your UIViewController. And add outlet of MapView to UIViewController.

Step 2: Add MapKit Framework to your project.

Now, you can run the code and see Map on your screen.

To get Current Location please continue steps.

Step 3: Import MapKit in you UIViewController

Step 4 : Now setup MKMapViewDelegate, CLLocationManagerDelegate in your code.

import MapKit
class ViewController: UIViewController, MKMapViewDelegate {
  @IBOutlet weak var mapView: MKMapView!
  override func viewDidLoad() {
    super.viewDidLoad()
    mapView.delegate = self
  }
}

import MapKit

class ViewController: UIViewController, MKMapViewDelegate {

@IBOutlet weak var mapView: MKMapView!

override func viewDidLoad() {

super.viewDidLoad()

mapView.delegate = self

}

Step 5: Now add a Current location button and make an action of that button and add below code.

if (CLLocationManager.locationServicesEnabled()) {            
   if locationManager == nil {                
      locationManager = CLLocationManager()            
   }            
   locationManager?.requestWhenInUseAuthorization()            
   locationManager.delegate = self            
   locationManager.desiredAccuracy = kCLLocationAccuracyBest            
   locationManager.requestAlwaysAuthorization()            
   locationManager.startUpdatingLocation()            
   isCurrentLocation = true        
}

if (CLLocationManager.locationServicesEnabled()) {

if locationManager == nil {

locationManager = CLLocationManager()

}

locationManager?.requestWhenInUseAuthorization()

locationManager.delegate = self

locationManager.desiredAccuracy = kCLLocationAccuracyBest

locationManager.requestAlwaysAuthorization()

locationManager.startUpdatingLocation()

isCurrentLocation = true

}

Step 6: After that add didUpdateLocations function from CLLocationManagerDelegate and add below code.

func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) { 
   if !isCurrentLocation {
      return
   } 
   isCurrentLocation = false
   let center = CLLocationCoordinate2D(latitude: location!.coordinate.latitude, longitude: location!.coordinate.longitude)
   let region = MKCoordinateRegion(center: center, span: MKCoordinateSpan(latitudeDelta: 0.01, longitudeDelta: 0.01))
   self.mapView.setRegion(region, animated: true) 
   if self.mapView.annotations.count != 0 {
      annotation = self.mapView.annotations[0] 
      self.mapView.removeAnnotation(annotation)
   }
   let pointAnnotation = MKPointAnnotation() 
   pointAnnotation.coordinate = location!.coordinate
   pointAnnotation.title = ""
   mapView.addAnnotation(pointAnnotation)
}

func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {

if !isCurrentLocation {

return

}

isCurrentLocation = false

let center = CLLocationCoordinate2D(latitude: location!.coordinate.latitude, longitude: location!.coordinate.longitude)

let region = MKCoordinateRegion(center: center, span: MKCoordinateSpan(latitudeDelta: 0.01, longitudeDelta: 0.01))

self.mapView.setRegion(region, animated: true)

if self.mapView.annotations.count != 0 {

annotation = self.mapView.annotations[0]

self.mapView.removeAnnotation(annotation)

}

let pointAnnotation = MKPointAnnotation()

pointAnnotation.coordinate = location!.coordinate

pointAnnotation.title = ""

mapView.addAnnotation(pointAnnotation)

}

Step 7: Must add NSLocationWhenInUseUsageDescription and NSLocationAlwaysUsageDescription in your info.Plist file

Conclusion

So please follow the above step and and if you have any issue or suggestion you can leave your query/suggestion in the comment section I will try to solve that.

Shikha Melkani 3 September 2019

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