How to open maps App programmatically with coordinates in swift?

Question

I have latitude and longitude that I want to open into my map application. I tried this code from HERE.

    func goToMap(){

    var lat1 : NSString = self.v         


        

Answer 1

You could call class function of MKMapItem passing items there, it uses only first and last for source / destination appropriately, if you want pass more than two items.

Swift 5, 4

let source = MKMapItem(placemark: MKPlacemark(coordinate: CLLocationCoordinate2D(latitude: lat, longitude: lng)))
source.name = "Source"

let destination = MKMapItem(placemark: MKPlacemark(coordinate: CLLocationCoordinate2D(latitude: lat, longitude: lng)))
destination.name = "Destination"

MKMapItem.openMaps(with: [source, destination], launchOptions: [MKLaunchOptionsDirectionsModeKey: MKLaunchOptionsDirectionsModeDriving])

or using extension:

extension MKMapItem {
  convenience init(coordinate: CLLocationCoordinate2D, name: String) {
    self.init(placemark: .init(coordinate: coordinate))
    self.name = name
  }
}

let source = MKMapItem(coordinate: .init(latitude: lat, longitude: lng), name: "Source")
let destination = MKMapItem(coordinate: .init(latitude: lat, longitude: lng), name: "Destination")

MKMapItem.openMaps(
  with: [source, destination], 
  launchOptions: [MKLaunchOptionsDirectionsModeKey: MKLaunchOptionsDirectionsModeDriving])