iOS Long Press Annotation on a Map

//
//  ViewController.swift
//  Learning Maps
//
//  Created by João Moreira on 10/03/15.
//  Copyright (c) 2015 JoaoMoreira. All rights reserved.
//

import UIKit

import MapKit

class ViewController: UIViewController, MKMapViewDelegate, CLLocationManagerDelegate {

    @IBOutlet var myMap: MKMapView!
    
    override func viewDidLoad() {
        super.viewDidLoad()

        var latitude:CLLocationDegrees = 40.748712         
        
        var longitude:CLLocationDegrees = -73.985728        

        var latDelta:CLLocationDegrees = 0.01        
        
        var lonDelta:CLLocationDegrees = 0.01    

        var span:MKCoordinateSpan = MKCoordinateSpanMake(latDelta, lonDelta)  
        
        var location:CLLocationCoordinate2D = CLLocationCoordinate2DMake(latitude, longitude)
        
        var region:MKCoordinateRegion = MKCoordinateRegionMake(location, span)  
        
        myMap.setRegion(region, animated: true)

        var annotation = MKPointAnnotation()
        
        annotation.coordinate = location
        
        annotation.title = "Statue of liberty"
        
        annotation.subtitle = "One day I'll go here..."
        
        myMap.addAnnotation(annotation)

        var uilpgr = UILongPressGestureRecognizer(target: self, action: "action:")  
                                                                                    
        uilpgr.minimumPressDuration = 2.0
        
        myMap.addGestureRecognizer(uilpgr)

    }

func action(gestureRecognizer:UIGestureRecognizer) {        
        
        println("test")
        
        var touchPoint = gestureRecognizer.locationInView(self.myMap)  
        
        var newCoordinate:CLLocationCoordinate2D = myMap.convertPoint(touchPoint, toCoordinateFromView: self.myMap)
        
        var newAnnotation = MKPointAnnotation()
        
        newAnnotation.coordinate = newCoordinate
        
        newAnnotation.title = "I will come here"
        
        newAnnotation.subtitle = "for sure"

        myMap.addAnnotation(newAnnotation)
        
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }