Open maps app with custom callout view and multiple annotations - ios

Question

I have made an project and followed a tutorial on the internet. It shows annotations and has a custom callout view.I have added a label with a button feature which is shown in my screenshot. I now would like some help to get the feature to start maps app from my project. I have made comments in the project which shows what i have done and what i need help with
import UIKit
import MapKit
class ViewController: UIViewController, MKMapViewDelegate, UISearchBarDelegate {
#IBOutlet var mapView: MKMapView!
#IBOutlet var searchBarMap: UISearchBar!
var coordinates: [[Double]]!
var names:[String]!
var addresses:[String]!
func mapView(_ mapView: MKMapView, viewFor annotation: MKAnnotation) -> MKAnnotationView? {
if annotation is MKUserLocation
{
return nil
}
if annotation is MKPointAnnotation
{
return nil
}
var annotationView = self.mapView.dequeueReusableAnnotationView(withIdentifier: "Pin")
if annotationView == nil{
annotationView = AnnotationView(annotation: annotation, reuseIdentifier: "Pin")
annotationView?.canShowCallout = false
}else{
annotationView?.annotation = annotation
}
annotationView?.image = UIImage(named: "parking-sign")
return annotationView
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
searchBarMap.delegate = self
coordinates = [[57.638486,18.299698],[57.636859,18.300468],[57.634807, 18.293389]]// Latitude,Longitude
names = ["Österport","Åhléns","Söderport/busstation"]
addresses = ["regler: p-skiva 2 timmar 9-18, oftast få platser lediga","stor med två våningar, övre plan oftast väl fylld och komplicerade parkeringsrutor","Nära om du vill till adelsgatan"]
self.mapView.delegate = self
for i in 0...2
{
let coordinate = coordinates[i]
let point = StarbucksAnnotation(coordinate: CLLocationCoordinate2D(latitude: coordinate[0] , longitude: coordinate[1] ))
point.name = names[i]
point.address = addresses[i]
self.mapView.addAnnotation(point)
}
let region = MKCoordinateRegion(center: CLLocationCoordinate2D(latitude: 57.630615, longitude: 18.303023), span: MKCoordinateSpan(latitudeDelta: 0.1, longitudeDelta: 0.1))
self.mapView.setRegion(region, animated: true)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func mapView(_ mapView: MKMapView,
didSelect view: MKAnnotationView)
{
// 1
if view.annotation is MKUserLocation
{
return
}
if view.annotation is MKPointAnnotation
{
return
}
let starbucksAnnotation = view.annotation as! StarbucksAnnotation
let views = Bundle.main.loadNibNamed("CustomCalloutView", owner: nil, options: nil)
let calloutView = views?[0] as! CustomCalloutView
calloutView.starbucksName.text = starbucksAnnotation.name
calloutView.starbucksAddress.text = starbucksAnnotation.address
// declaring label as a button
let button = UIButton(frame: calloutView.directions.frame)
button.addTarget(self, action: #selector(ViewController.openInMaps(sender:)), for: .touchUpInside)
calloutView.addSubview(button)
calloutView.center = CGPoint(x: view.bounds.size.width / 2, y: -calloutView.bounds.size.height*0.52)
view.addSubview(calloutView)
mapView.setCenter((view.annotation?.coordinate)!, animated: true)
}
func mapView(_ mapView: MKMapView, didDeselect view: MKAnnotationView) {
if view.isKind(of: AnnotationView.self)
{
for subview in view.subviews
{
subview.removeFromSuperview()
}
}
}
//I want to know what i should fill this function with to open maps and give me directions
func openInMaps(sender: UIButton)
{
//This is what i tested so far
let coordinates1 = coordinates
let point = StarbucksAnnotation(coordinate: CLLocationCoordinate2D(latitude: coordinates1[0] , longitude: coordinates1[1] ))
let regionDistance:CLLocationDistance = 10000
let regionSpan = MKCoordinateRegionMakeWithDistance(point, regionDistance, regionDistance)
let options = [
MKLaunchOptionsMapCenterKey: NSValue(mkCoordinate: regionSpan.center),
MKLaunchOptionsMapSpanKey: NSValue(mkCoordinateSpan: regionSpan.span)
]
let placemark = MKPlacemark(coordinate: point, addressDictionary: nil)
let mapItem = MKMapItem(placemark: placemark)
mapItem.name = "destination"
mapItem.openInMaps(launchOptions: options)
}
func searchBarSearchButtonClicked(_ searchBar: UISearchBar) {
searchBarMap.resignFirstResponder()
let geocoder = CLGeocoder()
geocoder.geocodeAddressString(searchBar.text!) { (placemarks:[CLPlacemark]?, error:Error?) in
if error == nil {
let placemark = placemarks?.first
let anno = MKPointAnnotation()
anno.coordinate = (placemark?.location?.coordinate)!
anno.title = self.searchBarMap.text!
self.mapView.addAnnotation(anno)
self.mapView.selectAnnotation(anno, animated: true)
}else{
print(error?.localizedDescription ?? "error")
}
}
}
}