Contents

MapMarker

A balloon-shaped annotation used to indicate the location on a map.

Declaration

struct MapMarker

Overview

Create a Map and display marker annotations by returning a view that conforms to MapAnnotationProtocol, such as MapMarker, from the trailing closure of init(coordinateRegion:interactionModes:showsUserLocation:userTrackingMode:annotationItems:annotationContent:) or init(mapRect:interactionModes:showsUserLocation:userTrackingMode:annotationItems:annotationContent:). Items you provide as a collection to the source annotations need to conform to Identifiable.

For example, the following code displays a map with a marker annotation:

struct IdentifiablePlace: Identifiable {
    let id: UUID
    let location: CLLocationCoordinate2D
    init(id: UUID = UUID(), lat: Double, long: Double) {
        self.id = id
        self.location = CLLocationCoordinate2D(
            latitude: lat,
            longitude: long)
    }
}

struct PinAnnotationMapView: View {
    let place: IdentifiablePlace
    @State var region: MKCoordinateRegion

    var body: some View {
        Map(coordinateRegion: $region,
            annotationItems: [place])
        { place in
            MapMarker(coordinate: place.location,
                   tint: Color.purple)
        }
    }
}

Topics

Creating a map marker

See Also

Structures