Swift - Add MKAnnotationView To MKMapView

Question

I'm trying to add `MKAnnotationView` to `MKMapView` but I can't do it… Can anyone help me? Here is my code: ``` override func viewDidLoad() { super.viewDidLoad() locationManager.desiredAccuracy = kCLLocationAccuracyBest locationManager.startUpdatingLocation() var latitude:CLLocationDegrees = locationManager.location.coordinate.latitude var longitude:CLLocationDegrees = locationManager.location.coordinate.longitude var homeLati: CLLocationDegrees = 40.01540192 var homeLong: CLLocationDegrees = 20.87901079 var latDelta:CLLocationDegrees = 0.01 var longDelta:CLLocationDegrees = 0.01 var theSpan:MKCoordinateSpan = MKCoordinateSpanMake(latDelta, longDelta) var myHome:CLLocationCoordinate2D = CLLocationCoordinate2DMake(homeLati, homeLong) var myLocation:CLLocationCoordinate2D = CLLocationCoordinate2DMake(latitude, longitude) var theRegion:MKCoordinateRegion = MKCoordinateRegionMake(myLocation, theSpan) self.theMapView.setRegion(theRegion, animated: true) self.theMapView.mapType = MKMapType.…

Accepted Answer

You need to implement the `viewForAnnotation` delegate method and return an `MKAnnotationView` from there.

Here's an example:

```
func mapView(mapView: MKMapView!, viewForAnnotation annotation: MKAnnotation!) -> MKAnnotationView! {
    if (annotation is MKUserLocation) {
        //if annotation is not an MKPointAnnotation (eg. MKUserLocation),
        //return nil so map draws default view for it (eg. blue dot)...
        return nil
    }

let reuseId = "test"

var anView = mapView.dequeueReusableAnnotationViewWithIdentifier(reuseId)
    if anView == nil {
        anView = MKAnnotationView(annotation: annotation, reuseIdentifier: reuseId)
        anView.image = UIImage(named:"xaxas")
        anView.canShowCallout = true
    }
    else {
        //we are re-using a view, update its annotation reference...
        anView.annotation = annotation
    }

return anView
}
```

Remember you need to create a plain `MKAnnotationView` when you want to use your own custom image. The `MKPinAnnotationView` should only be used for the standard pin annotations.

Also note you should not try to access `locationManager.location` immediately after calling `startUpdatingLocation`. It may not be ready yet.

Use the `didUpdateLocations` delegate method.

You also need to call `requestAlwaysAuthorization`/`requestWhenInUseAuthorization` (see Location Services not working in iOS 8).

Swift - Add MKAnnotationView To MKMapView

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