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我是 iOS 开发和 Mapbox 的新手，如果问题听起来很愚蠢，我很抱歉，但我在任何地方都找不到答案。\n我有一张地图和上面的注释。我想在用户触摸并按住注释（长按手势）时显示一些其他信息。我有长按手势来工作，但找到了找到被触摸的注释的方法，或者至少是它的索引。到目前为止我是这样的：

class eventsMapController: UIViewController, MGLMapViewDelegate {\noverride func viewDidLoad() {\n    super.viewDidLoad()\n    mapView.autoresizingMask = [.FlexibleWidth, .FlexibleHeight]\n\n    // Set the map\'s bounds to Oslo 59.920269,10.71167\n    //let bounds = MGLCoordinateBounds(sw: CLLocationCoordinate2D(latitude: 59.925861, longitude: 10.712185),\n                                //     ne: CLLocationCoordinate2D(latitude: 59.889798, longitude: 10.794754))        \n    view.addSubview(mapView)\n\n    // Set the map view\xe2\x80\x98s delegate property\n    mapView.delegate = self\n\n    let myGesture = UILongPressGestureRecognizer(target: self, action: #selector(eventsMapController.testLongGesture))\n    myGesture.minimumPressDuration = 0.8\n    mapView.addGestureRecognizer(myGesture) \n}\nfunc testLongGesture(long: UILongPressGestureRecognizer){\n    if long.state == .Began{ \n        print("begin", long)\n    }\n}\n}\n

我正在添加这样的注释

let pointAnotation …