Learn SwiftUI

Adding your first annotation (pin)

We'll start by heading on over to MapHelper.swift, where we'll create a new class called AnnotationPin. This class will be a custom subclass of MKAnnotation. We're creating a subclass as we'd like to customize the annotation later on.

Add the following at the footer of our MapHelper.swift for now:

class AnnotationPin: NSObject, MKAnnotation {    let title: String?  let subtitle: String?  let coordinate: CLLocationCoordinate2D    init(title: String?, subtitle: String?, coordinate: CLLocationCoordinate2D) {        self.title = title    self.subtitle = subtitle    self.coordinate = coordinate      }}

The preceding is a basic subclass of MKAnnotation. We've even overwritten the base properties of title, subtitle, and coordinate