Setting Map Annotation with an Image in Swift - iphone

Question

I'm trying to change the map annotation to a custom image that i made in a static cell. The map's annotation works but then when i try to put my image in the map zooms to the location but doesn't display the image.
import UIKit
import MapKit
import CoreLocation
class ContactsTableViewController: UITableViewController, MKMapViewDelegate, CLLocationManagerDelegate {
}
override func viewDidLoad() {
super.viewDidLoad()
self.addressMap.delegate = self
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "ContactCell", for: indexPath) as! customCell
if let _ = currentAnnotation {
addressMap.removeAnnotation(currentAnnotation!)
}
let contact = contacts.contactWithIndex((indexPath as NSIndexPath).row)
print(contact)
cell.nameLabel.text = contact.name
cell.addressLabel.text = contact.address
let country = "USA"
let city = "Cicero"
let street = contact.address
// Create Address String
let address = "\(country), \(city), \(street)"
// Geocode Address String
geocoder.geocodeAddressString(address) { (placemarks, error) in
// Process Response
self.processResponse(withPlacemarks: placemarks, error: error)
var location: CLLocation?
if let placemarks = placemarks, placemarks.count > 0 {
location = placemarks.first?.location
}
if let location = location {
let coordinate = location.coordinate
print("Custom cell: \(coordinate.latitude), \(coordinate.longitude)")
//Drops pin to current MKPointAnnotationis logged in
self.currentAnnotation = MKPointAnnotation()
self.currentAnnotation?.coordinate = CLLocationCoordinate2D(latitude: coordinate.latitude, longitude: coordinate.longitude)
let image1 = CustomPointAnnotation()
image1.imageName = "mapPin.png"
self.addressMap.addAnnotation(image1)
//Pins the location on the mapview
//cell.addressMap.addAnnotation(self.currentAnnotation!)
cell.addressMap.addAnnotation(image1)
//Auto zoom into user location
let span = MKCoordinateSpanMake(0.02, 0.02)
let region = MKCoordinateRegion(center: (self.currentAnnotation?.coordinate)!, span: span)
cell.addressMap.setRegion(region, animated: true)
} else {
print("No Matching Location Found")
}
}
}
func addressMap(_ addressMap: MKMapView, viewFor annotation: MKAnnotation!) -> MKAnnotationView? {
if !(annotation is CustomPointAnnotation) {
return nil
}
let reuseId = "test"
var anView = addressMap.dequeueReusableAnnotationView(withIdentifier: reuseId)
if anView == nil {
anView = MKAnnotationView(annotation: annotation, reuseIdentifier: reuseId)
anView?.canShowCallout = true
} else {
anView?.annotation = annotation
}
//Set annotation-specific properties **AFTER**
//the view is dequeued or created...
let cpa = annotation as! CustomPointAnnotation
anView?.image = UIImage(named:cpa.imageName)
return anView
}
Here's the class for the annotation
import UIKit
import MapKit
class CustomPointAnnotation: MKPointAnnotation {
var imageName: String!
}
If anyone can tell me what I'm doing wrong that's causing my image to not display as the annotation that would be awesome.

Answer 1

A couple of issues:
You don't appear to ever set the coordinate of the CustomPointAnnotation.
The signature for the mapView(_:viewFor:) is incorrect. If you add a breakpoint in your method, you'll see it is not called. Your map outlet may be called addressMap, but the delegate method name is mapView(_:viewFor:), regardless of the name of your MKMapView outlet reference.