CODEWITHSUNDEEP
iosmkmapviewmapkitxcode7mkpointannotation
Jamal Rasool
Jamal Rasool

Reputation: 3

Adding Image to the MKAnnotationViewClass (Changing Annotation Pin)

I've currently looked through the few tutorials on how to change the pin for the annotation. But all I've came across was nothing but errors within xcode 7 (Mainly all the breakpoints and it not working correctly). What I'm trying to do is use a Cloud that I have in my assets folder, and have that replace the normal Annotation. From the guides i've seen people are just using png files in which i'm not exactly sure where they should be located? But nonetheless any suggestions to the code that would allow me to replace it?

Cheers and Thanks

Heres my code

let locationManager = CLLocationManager()

override func viewDidLoad() {
    super.viewDidLoad()

    let longPressRecognizer = UILongPressGestureRecognizer(target: self, action: "handleLongPress:")
    longPressRecognizer.minimumPressDuration = 1.0
    longPressRecognizer.delaysTouchesBegan = true
    longPressRecognizer.delegate = self
    self.mapView.addGestureRecognizer(longPressRecognizer)

    self.locationManager.delegate = self

    self.locationManager.desiredAccuracy = kCLLocationAccuracyBest

    self.locationManager.requestWhenInUseAuthorization()

    self.locationManager.startUpdatingLocation()

    self.mapView.showsUserLocation = true

}


override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
}


func handleLongPress(getstureRecognizer : UIGestureRecognizer) {
    if getstureRecognizer.state != .Began { return }

    let touchPoint = getstureRecognizer.locationInView(self.mapView)
    let touchMapCoordinate = mapView.convertPoint(touchPoint, toCoordinateFromView: mapView)

    let annotation = MKPointAnnotation()
    annotation.coordinate = touchMapCoordinate
    mapView.addAnnotation(annotation)


}


func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
    let location = locations.last
    let center = CLLocationCoordinate2D(latitude: location!.coordinate.latitude, longitude: location!.coordinate.longitude)
    let region = MKCoordinateRegion(center: center, span:  MKCoordinateSpan(latitudeDelta: 10, longitudeDelta: 10))

    self.mapView.setRegion(region, animated: true)
    self.locationManager.stopUpdatingLocation()
}

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

    let reuseId = "Cloud"

    var CloudAnnotation = mapView.dequeueReusableAnnotationViewWithIdentifier(reuseId)
    if CloudAnnotation == nil {
        CloudAnnotation = MKAnnotationView(annotation: annotation, reuseIdentifier: reuseId)
        CloudAnnotation!.image = UIImage(named:"cloud.png")
        CloudAnnotation!.canShowCallout = true
    }
    else {
        CloudAnnotation!.annotation = annotation
    }

    return CloudAnnotation
}


func locationManager(manager: CLLocationManager, didFailWithError error: NSError) {
    print("Errors: " + error.localizedDescription)
}

and for the MKAnnotationViewClass

import UIKit
import MapKit

class CustomPointAnnotation: MKPointAnnotation {
    var pinCustomImageName:String!
}

Previous threads that I looked at for information

Change pin image on MKMapView in Swift

Swift different images for Annotation

Upvotes: 0

Views: 954

Answers (1)

Nirav Gadhiya
Nirav Gadhiya

Reputation: 6342

Try this...

func mapView(mapView: MKMapView!, viewForAnnotation annotation: MKAnnotation!) -> MKAnnotationView! {

    if annotation is MKPointAnnotation {

        let identifier = "stopAnnotation"
        var pinView = mapView.dequeueReusableAnnotationViewWithIdentifier(identifier)
        if pinView == nil {
            //println("Pinview was nil")

            //Create a plain MKAnnotationView if using a custom image... 
            pinView = MKAnnotationView(annotation: annotation, reuseIdentifier: identifier)

            pinView!.canShowCallout = true
            pinView.image = UIImage(named: "stopIcon")
        }
        else {
            //Unrelated to the image problem but...
            //Update the annotation reference if re-using a view...
            pinView.annotation = annotation
        }

        return pinView          
    }
    return nil
}

Upvotes: 2

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