All docsMaps SDK for iOS v6ExamplesRestrict map panning to an area

Restrict map panning to an area

A newer version of the Maps SDK is available

This page uses v6.4.1 of the Mapbox Maps SDK. A newer version of the SDK is available. Learn about the latest version, v10.5.0, in the Maps SDK documentation.

import Mapbox
class ViewController: UIViewController, MGLMapViewDelegate {
private var colorado: MGLCoordinateBounds!
override func viewDidLoad() {
let mapView = MGLMapView(frame: view.bounds)
mapView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
mapView.delegate = self
// Denver, Colorado
let center = CLLocationCoordinate2D(latitude: 39.748947, longitude: -104.995882)
// Starting point
mapView.setCenter(center, zoomLevel: 10, direction: 0, animated: false)
// Colorado’s bounds
let northeast = CLLocationCoordinate2D(latitude: 40.989329, longitude: -102.062592)
let southwest = CLLocationCoordinate2D(latitude: 36.986207, longitude: -109.049896)
colorado = MGLCoordinateBounds(sw: southwest, ne: northeast)
// This example uses Colorado’s boundaries to restrict the camera movement.
func mapView(_ mapView: MGLMapView, shouldChangeFrom oldCamera: MGLMapCamera, to newCamera: MGLMapCamera) -> Bool {
// Get the current camera to restore it after.
let currentCamera =
// From the new camera obtain the center to test if it’s inside the boundaries.
let newCameraCenter = newCamera.centerCoordinate
// Set the map’s visible bounds to newCamera. = newCamera
let newVisibleCoordinates = mapView.visibleCoordinateBounds
// Revert the camera. = currentCamera
// Test if the newCameraCenter and newVisibleCoordinates are inside self.colorado.
let inside = MGLCoordinateInCoordinateBounds(newCameraCenter, self.colorado)
let intersects = MGLCoordinateInCoordinateBounds(, self.colorado) && MGLCoordinateInCoordinateBounds(newVisibleCoordinates.sw, self.colorado)
return inside && intersects