How to go to user location with Mapkit (Swift) - swift

Question

I am new to app development and I have been trying to create an app which will use core location manager to find the users location and then display it with mapkit. Below is the code I came up with. I haven't been able to fix it, does anyone know what I'm doing wrong? Thanks.
//
// ViewController.swift
// MapKit Test
//
// Created by TMT on 7/11/15.
// Copyright (c) 2015 TMT Inc. All rights reserved.
//
import UIKit
import MapKit
import CoreLocation
class ViewController: UIViewController, MKMapViewDelegate, CLLocationManagerDelegate {
#IBOutlet weak var mapView: MKMapView!
override func viewDidLoad() {
super.viewDidLoad()
mapView.showsUserLocation = true
mapView.showsPointsOfInterest = true
mapView.delegate = self
let locationManager = CLLocationManager()
// Ask for Authorisation from the User.
locationManager.requestAlwaysAuthorization()
// For use in foreground
locationManager.requestWhenInUseAuthorization()
if CLLocationManager.locationServicesEnabled() {
locationManager.delegate = self
locationManager.desiredAccuracy = kCLLocationAccuracyNearestTenMeters
locationManager.startUpdatingLocation()
}
#NSCopying var location: CLLocation! { get }
var span = MKCoordinateSpanMake(0.2
, 0.2)
var region = MKCoordinateRegion(center: location, span: span)
mapView.setRegion(region, animated: true)
var request = MKLocalSearchRequest()
request.naturalLanguageQuery = "library"
// Do any additional setup after loading the view, typically from a nib.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}

Answer 1

You are not handling the delegate method for the location/map. Your code is setting up the map and location frameworks and delegate methods. You have initialized them and told the compiler you want to do something with mapkit/corelocation. So now you need to to handle the delegate methods MKMapViewDelegate, CLLocationManagerDelegate which you have included, and set to self
Place the delegate handling in addition to your code somewhere
func locationManager(manager: CLLocationManager!, didUpdateLocations locations: [AnyObject]!) {
//Get map location
let location = locations.last as! CLLocation
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)
//Get co ordinates
CLGeocoder().reverseGeocodeLocation(manager.location, completionHandler: {(placemarks, error)->Void in
if (error != nil) {
println("Error: " + error.localizedDescription)
return
}
if placemarks.count > 0 {
let pm = placemarks[0] as! CLPlacemark
self.displayLocationInfo(pm)
} else {
println("Error with the data.")
}
})
}
func displayLocationInfo(placemark: CLPlacemark) {
//Remove observer
self.locationManager.stopUpdatingLocation()
println(placemark.locality)
println(placemark.postalCode)
println(placemark.administrativeArea)
println(placemark.country)
}
func locationManager(manager: CLLocationManager!, didFailWithError error: NSError!) {
println("Error: " + error.localizedDescription)
}