You can do like this:
import UIKit
import MapKit
class ViewController: UIViewController, CLLocationManagerDelegate, MKMapViewDelegate {
let locationManager = CLLocationManager() // Here it is an object to get the user's location.
@IBOutlet weak var mapView: MKMapView! // It is my map.
override func viewDidLoad() {
super.viewDidLoad()
locationManager.delegate = self
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.requestWhenInUseAuthorization()
locationManager.requestLocation()
// To initialize locationManager (). Now it can give you the user's location.
map.delegate = self
map.showsUserLocation = true
// To initialize the map.
}// Here you should initialize locationManager and your map. I send you the code later.
func dropPinZoomIn(placemark: MKPlacemark){ // This function will "poste" the dialogue bubble of the pin.
var selectedPin: MKPlacemark?
// cache the pin
selectedPin = placemark // MKPlacemark() give the details like location to the dialogue bubble. Place mark is initialize in the function getLocationAddress (location: ) who call this function.
// clear existing pins to work with only one dialogue bubble.
mapView.removeAnnotations(mapView.annotations)
let annotation = MKPointAnnotation() // The dialogue bubble object.
annotation.coordinate = placemark.coordinate
annotation.title = placemark.name// Here you should test to understand where the location appear in the dialogue bubble.
if let city = placemark.locality,
let state = placemark.administrativeArea {
annotation.subtitle = String((city))+String((state));
} // To "post" the user's location in the bubble.
mapView.addAnnotation(annotation) // To initialize the bubble.
let span = MKCoordinateSpanMake(0.05, 0.05)
let region = MKCoordinateRegionMake(placemark.coordinate, span)
mapView.setRegion(region, animated: true) // To update the map with a center and a size.
}
func getLocationAddress(location:CLLocation) { // This function give you the user's address from a location like locationManager.coordinate (it is usually the user's location).
let geocoder = CLGeocoder()
print("-> Finding user address...")
geocoder.reverseGeocodeLocation(location, completionHandler: {(placemarks, error)->Void in
var placemark:CLPlacemark!
if error == nil && placemarks!.count > 0 {
placemark = placemarks![0] as CLPlacemark
var addressString : String = ""
if placemark.ISOcountryCode == "TW" /*Address Format in Chinese*/ {
if placemark.country != nil { // To have the country
addressString = placemark.country!
}
if placemark.subAdministrativeArea != nil { // To have the subAdministrativeArea.
addressString = addressString + placemark.subAdministrativeArea! + ", "
}
if placemark.postalCode != nil { // To ...
addressString = addressString + placemark.postalCode! + " "
}
if placemark.locality != nil {
addressString = addressString + placemark.locality!
}
if placemark.thoroughfare != nil {
addressString = addressString + placemark.thoroughfare!
}
if placemark.subThoroughfare != nil {
addressString = addressString + placemark.subThoroughfare!
}
} else {
if placemark.subThoroughfare != nil {
addressString = placemark.subThoroughfare! + " "
}
if placemark.thoroughfare != nil {
addressString = addressString + placemark.thoroughfare! + ", "
}
if placemark.postalCode != nil {
addressString = addressString + placemark.postalCode! + " "
}
if placemark.locality != nil {
addressString = addressString + placemark.locality! + ", "
}
if placemark.administrativeArea != nil {
addressString = addressString + placemark.administrativeArea! + " "
}
if placemark.country != nil {
addressString = addressString + placemark.country!
}
let new_placemark: MKPlacemark = MKPlacemark (placemark: placemark)
// new_placemark initialize a variable of type MKPlacemark () from geocoder to use the function dropPinZoomIn (placemark:).
self.dropPinZoomIn (new_placemark)
print (placemark.description) // You can see the place mark's details like the country.
}
}
})
}
I give you an easily location systeme where you can have the user's address, the user's location and show it in a map with dialogues bubbles who displays the user's location.
You can have more documentation in Thorn web site with dialogue or in apple developer web site.
