iosswiftmkmapviewmkannotationviewmkpointannotation

Swift - adding a button to my MKPointAnnotation


On Swift 1.2 : I'd like to add a button to my annotations on the map. First tap on pin shows user's id, and this is working, but then, by pressing the button, I want to send the user to a detail view controller.

you can have an idea of what I'm looking for here and here

tried to apply those solutions, but I think I'm missing something. This is another example of what I'm seeking

enter image description here

this is my class declaration:

import UIKit
import MapKit
import CoreLocation
import Parse

class MapViewController: UIViewController, MKMapViewDelegate, CLLocationManagerDelegate, UIActionSheetDelegate {

and this is the part of the code where I'd like to create annotations with buttons:

    // MARK: - Create Annotation

    func createAnnotations(point: PFGeoPoint, address: String)
    {
        println("*** this evaluates n.3 ***")
        var query = PFUser.query()


        query?.whereKey("location", nearGeoPoint: point, withinKilometers: withinKms)
        query?.orderByAscending("location")  //MARK:  Put list in order

        //MARK: Not include current user on the map
        var me = PFUser.currentUser()?.username
        query?.whereKey("username", notEqualTo: me!)

        query?.limit = self.kLimitNumberForQueryResults


        query?.findObjectsInBackgroundWithBlock({ (objects, error) -> Void in

            if error == nil
            {
                for(var i = 0; i < objects!.count; i++) {

                    let user = objects![i] as! PFUser
                    var myHomePin = MKPointAnnotation()
                    let userPoint = user["location"] as! PFGeoPoint
                    myHomePin.coordinate = CLLocationCoordinate2DMake(userPoint.latitude, userPoint.longitude)
                    myHomePin.title = user.username

 //MARK: core of the problem                   
//                    let detailButton : UIButton = UIButton.buttonWithType(UIButtonType.DetailDisclosure) as! UIButton
//                    myHomePin.rightCalloutAccessoryView = detailButton
//




//                    myHomePin.subtitle = address
                    self.mapView.addAnnotation(myHomePin)
                    //                    self.closeUsersArray.append(user.username!) //MARK: Test

                }






//                    println("this is the array of users * \(self.closeUsersArray) *") //MARK: Test
            }
            else
            {
                println("Error: " + error!.localizedDescription)
            }

        })

    }

thanks in advance!


Solution

  • Use the 'viewForAnnotation' map view delegate method to setup left and rightcalloutAccessories. and also UIButton.buttonWithType is replaced, this will work: Edit: all delegate methods you need but I didn't though your createAnnotation function because you said its working fine

    class MapViewController: UIViewController, MKMapViewDelegate //
    {
        @IBOutlet weak var mapView: MKMapView!{ //make sure this outlet is connected 
            didSet{
                mapView.delegate = self
            }
        }
    
        // MARK: - Map view delegate
    
        func mapView(mapView: MKMapView, viewForAnnotation annotation: MKAnnotation) -> MKAnnotationView? {
            var view = mapView.dequeueReusableAnnotationViewWithIdentifier("AnnotationView Id")
            if view == nil{
                view = MKPinAnnotationView(annotation: annotation, reuseIdentifier: "AnnotationView Id")
                view!.canShowCallout = true
            } else {
                view!.annotation = annotation
            }
    
            view?.leftCalloutAccessoryView = nil
            view?.rightCalloutAccessoryView = UIButton(type: UIButtonType.DetailDisclosure)
            //swift 1.2
            //view?.rightCalloutAccessoryView = UIButton.buttonWithType(UIButtonType.DetailDisclosure) as UIButton
    
            return view
        }
    
        func mapView(mapView: MKMapView, annotationView view: MKAnnotationView, calloutAccessoryControlTapped control: UIControl) {
            //I don't know how to convert this if condition to swift 1.2 but you can remove it since you don't have any other button in the annotation view
            if (control as? UIButton)?.buttonType == UIButtonType.DetailDisclosure { 
                    mapView.deselectAnnotation(view.annotation, animated: false)
                    performSegueWithIdentifier("you're segue Id to detail vc", sender: view)
                }
            } 
        }
    
        //Your function to load the annotations in viewDidLoad
    
    }