在mapbox SDK中，你可以选择一个图层中的特征

您需要在地图视图中添加轻点手势，

 var mapView: MGLMapView!
 let layerIdentifier = "state-layer"

override func viewDidLoad() {
super.viewDidLoad() 

     mapView = MGLMapView(frame: view.bounds)
mapView.delegate = self
mapView.setCenter(CLLocationCoordinate2D(latitude: 16.5440447, longitude: 64.3123835), animated: false)
mapView.autoresizingMask = [.flexibleHeight, .flexibleWidth]
view.addSubview(mapView)

// Add a single tap gesture recognizer. This gesture requires the built-in MGLMapView tap gestures (such as those for zoom and annotation selection) to fail.
let singleTap = UITapGestureRecognizer(target: self, action: #selector(handleMapTap(sender:)))
for recognizer in mapView.gestureRecognizers! where recognizer is UITapGestureRecognizer {
singleTap.require(toFail: recognizer)
}
mapView.addGestureRecognizer(singleTap)
}

并处理该操作，如

   @objc @IBAction func handleMapTap(sender: UITapGestureRecognizer) {
// Get the CGPoint where the user tapped.
let spot = sender.location(in: mapView)

// Access the features at that point within the state layer.
let features = mapView.visibleFeatures(at: spot, styleLayerIdentifiers: Set([layerIdentifier]))

// Get the name of the selected state.
if let feature = features.first, let state = feature.attribute(forKey: "name") as? String {
 print("State Name == \(state)")
} else {
changeOpacity(name: "")
}
}