MapTiler SDK Swift

The MapTiler SDK Swift is a native SDK written in Swift, designed to work with the well-established MapTiler Cloud service, which provides all the data required to fuel a complete mobile mapping experience: vector tiles, geojson, map interaction, custom styles, data visualization and more.

Features

• Map interaction
• Pre-made map styles
• VectorTile and GeoJSON sources
• Fill, Line and Symbol layers
• Custom Annotation Views
• Location tracking
• Globe and 3D Terrain
• UIKit and SwiftUI support

Basic Usage

Make sure to set your MapTiler Cloud API key first. (i.e. in AppDelegate):

Task {
    await MTConfig.shared.setAPIKey("YOUR_API_KEY")
}

UIKit

import MapTilerSDK

let coordinates = CLLocationCoordinate2D(latitude: 47.137765, longitude: 8.581651)
let options = MTMapOptions(center: coordinates, zoom: 2.0, bearing: 1.0, pitch: 20.0)
var mapView = MTMapView(frame: view.frame, options: options, referenceStyle: .streets)
mapView.delegate = self

view.addSubview(mapView)

If you are using auto layout, you can call the helper function for anchors pinning. This ensures correct orientation updates.

mapView.pinToSuperviewEdges()

SwiftUI

import MapTilerSDK

@State private var referenceStyle: MTMapReferenceStyle = .streets
@State private var styleVariant: MTMapStyleVariant? = .defaultVariant

@State private var mapView = MTMapView(options: MTMapOptions(zoom: 2.0))

var body: some View {
    MTMapViewContainer(map: mapView) {}
        .referenceStyle(referenceStyle)
        .styleVariant(styleVariant)
}

For detailed functionality overview refer to the API Reference documentation or build local docs in Xcode: Product -> Build Documentation.

Sources and Layers

Sources and layers can be added to the map view style object as soon as map is initialized.

UIKit

guard let style = mapView.style else {
    return
}

if let contoursTilesURL = URL(string: "https://api.maptiler.com/tiles/contours-v2/{z}/{x}/{y}.pbf?key=YOUR_API_KEY") {
    let contoursDataSource = MTVectorTileSource(identifier: "contoursSource", tiles: [contoursTilesURL])
    style.addSource(contoursDataSource)

    let contoursLayer = MTLineLayer(identifier: "contoursLayer", sourceIdentifier: contoursDataSource.identifier, sourceLayer: "contour_ft")
    contoursLayer.color = .brown
    contoursLayer.width = 2.0

    style.addLayer(contoursLayer)
}

SwiftUI

@State private var mapView = MTMapView(options: MTMapOptions(zoom: 2.0))

var body: some View {
    MTMapViewContainer(map: mapView) {
        MTVectorTileSource(identifier: "countoursSource", tiles: [URL(string: "https://api.maptiler.com/tiles/contours-v2/{z}/{x}/{y}.pbf?key=YOUR_API_KEY")])

        MTLineLayer(identifier: "contoursLayer", sourceIdentifier: "countoursSource", sourceLayer: "contour_ft")
            .color(.brown)
            .width(2.0)

    }
}

Markers and Popups

Markers and popups (Text, Custom Annotation) can be used for highlighting points of interest on the map.

UIKit

let coordinates = CLLocationCoordinate2D(latitude: 47.137765, longitude: 8.581651)

let popup = MTTextPopup(coordinates: coordinates, text: "MapTiler", offset: 20.0)
let marker = MTMarker(coordinates: coordinates, popup: popup)
marker.draggable = true

mapView.addMarker(marker)

SwiftUI

@State private var mapView = MTMapView(options: MTMapOptions(zoom: 2.0))

let coordinates = CLLocationCoordinate2D(latitude: 47.137765, longitude: 8.581651)

var body: some View {
    MTMapViewContainer(map: mapView) {
        let popup = MTTextPopup(coordinates: coordinates, text: "MapTiler", offset: 20.0)

        MTMarker(coordinates: coordinates, draggable: true, popup: popup)
    }
}

Alternatively add content on custom actions:

@State private var mapView = MTMapView(options: MTMapOptions(zoom: 2.0))

let coordinates = CLLocationCoordinate2D(latitude: 47.137765, longitude: 8.581651)

var body: some View {
    MTMapViewContainer(map: mapView) {
    }
        .didInitialize {
            let marker = MTMarker(coordinates: coordinates)

            Task {
                await mapView.addMarker(marker)
            }
        }

    Button("Add Popup") {
        Task {
            let popup = MTTextPopup(coordinates: coordinates, text: "MapTiler", offset: 20.0)

            await mapView.addTextPopup(popup)
        }
    }
}

For additional examples refer to the Examples directory.

Custom Annotations

In addition to MTMarker and MTTextPopup, you can use MTCustomAnnotationView class to make your own annotations and add them to the map. You can subclass to create custom UI it or use it as is for simple designs.

let customSize = CGSize(width: 200.0, height: 80.0)
let coordinates = CLLocationCoordinate2D(latitude: 47.137765, longitude: 8.581651)
let offset = MTPoint(x: 0, y: -80)

let myCustomView = MTCustomAnnotationView(size: customSize, coordinates: coordinates, offset: offset)
myCustomView.backgroundColor = .blue

myCustomView.addTo(mapView)

Installation

MapTiler Swift SDK is a Swift Package and can be added as dependency through Swift Package Manager.

• File -> Add Package Dependencies
• Add https://github.com/maptiler/maptiler-sdk-swift.git

License

MapTiler SDK Swift is released under the BSD 3-Clause license. See LICENSE for details.