gistfile1.swift

override func viewDidLoad() {
    super.viewDidLoad()
    
    // set OneMap base map url
    let url = NSURL(string: "http://e1.onemap.sg/arcgis/rest/services/BASEMAP/MapServer")
    // create a tiled map layer
    let tiledLayer = AGSTiledMapServiceLayer(URL: url)
    // add layer to the mapView UIView
    self.mapView.addMapLayer(tiledLayer, withName: "Basemap Tiled Layer")
    
}