core location example swift

SimpleCoreLocationExample.swift

import UIKit
import CoreLocation

class CurrentLocationViewController: UIViewController, CLLocationManagerDelegate {
    
    let locationManager = CLLocationManager()
    
    var location: CLLocation?
    
    override func viewDidAppear() {
        super.viewDidLoad()

        let authStatus: CLAuthorizationStatus = CLLocationManager.authorizationStatus()
        
        if authStatus == .Denied || authStatus == .Restricted {
            showLocationServicesDeniedAlert()
            return
        }
        
        if authStatus == .NotDetermined {
            locationManager.requestWhenInUseAuthorization()
            return
        }
        
        locationManager.delegate = self
        locationManager.desiredAccuracy = kCLLocationAccuracyNearestTenMeters
        locationManager.startUpdatingLocation()
    }
    
    func showLocationServicesDeniedAlert() {
        let alert = UIAlertController(title: "Location Services Disabled",
            message: "Please enable location services for this app in Settings.",
            preferredStyle: .Alert)
        let okAction = UIAlertAction(title: "OK", style: .Default,handler: nil)
        alert.addAction(okAction)
        presentViewController(alert, animated: true, completion: nil)
    }

    func locationManager(manager: CLLocationManager!, didFailWithError error: NSError!) {
            println("didFailWithError \(error)")
    }
    
    func locationManager(manager: CLLocationManager!, didUpdateLocations locations: [AnyObject]!) {

            let newLocation = locations.last as CLLocation

            location = newLocation
            
            let lat = String(format: "%.8f", location.coordinate.latitude)
            let lon = String(format: "%.8f", location.coordinate.longitude)
            
            println("\(lat),\(lon)")
    }
}