How Do I add Pins (Annotations) with Xcode 6 (Swift)

Question

I\'m new to the swift language, and haven\'t done an application with mapkit yet. But I have the map and regions set, but I\'m hung up on how to allow users to add pins. Let me

Answer 1

Your pin variable is correct. Now you just need to add this annotation to MKMapView.

You can also create a custom class for MKAnnotation to add custom annotation to map view.

A beta demo for MapExampleiOS8 => Which supports Swift 2.1

Follow steps below:

1. Add MapKit.framework to project.

2. Create Storyboard variable IBOutlet of map view control or create it in view controller. Set delegate for this variable to override it's delegate methods:

Add delegate signature to view controller interface:

class ViewController: UIViewController, MKMapViewDelegate {

    override func viewDidLoad() {
        super.viewDidLoad()

        // Set map view delegate with controller
        self.mapView.delegate = self
    }
}

3. Override its delegate methods:

Here we need to override mapView(_:viewForAnnotation:) method to show annotation pins on map.

func mapView(mapView: MKMapView, viewForAnnotation annotation: MKAnnotation) -> MKAnnotationView? {
    if (annotation is MKUserLocation) {
        return nil
    }

    if (annotation.isKind(of: CustomAnnotation.self)) {
        let customAnnotation = annotation as? CustomAnnotation
        mapView.translatesAutoresizingMaskIntoConstraints = false
        var annotationView = mapView.dequeueReusableAnnotationView(withIdentifier: "CustomAnnotation") as MKAnnotationView!

        if (annotationView == nil) {
            annotationView = customAnnotation?.annotationView()
        } else {
            annotationView?.annotation = annotation;
        }

        self.addBounceAnimationToView(annotationView)
        return annotationView
    } else {
        return nil
    }
}

4. Add MKPointAnnotation to map view.

You can add pin to location in map view. For simplicity add code to viewDidLoad() method.

override func viewDidLoad() {
    super.viewDidLoad()

    // Set map view delegate with controller
    self.mapView.delegate = self

    let newYorkLocation = CLLocationCoordinate2DMake(40.730872, -74.003066)
    // Drop a pin
    let dropPin = MKPointAnnotation()
    dropPin.coordinate = newYorkLocation
    dropPin.title = "New York City"
    mapView.addAnnotation(dropPin)
}

Answer 2

You will need to call a method for when and where the user needs to add the pin. If you want it to add a pin where the user taps and holds on the map, you will need to call a gestureRecognizer, but if you want to do it via a button you will obviously just call that in an action. Either way the documentation for adding pins is throughly discussed Here