swift - 将谷歌地图的 didTapAtCoordinate 方法与 UITapGestureRecognizer 结合使用

Question

我注意到:

func mapView(mapView: GMSMapView!, didTapAtCoordinate coordinate: CLLocationCoordinate2D) {
    print("You tapped at \(coordinate.latitude), \(coordinate.longitude)")
}

正在覆盖手势识别器:

@IBOutlet weak var mapView: GMSMapView!
let aSelector : Selector = "tappedOnMap"
let tapGesture = UITapGestureRecognizer(target: self, action: aSelector)
mapView.userInteractionEnabled = true
tapGesture.numberOfTapsRequired = 1
mapView.addGestureRecognizer(tapGesture)

func tappedOnMap() {
    print("Tapped")
}

“Tapped”从不打印，但“You tapped at so and so”会打印。

我的 map View 被拉伸(stretch)以填满 View 屏幕。似乎 didTapAtCoordinate 覆盖了 GestureRecognizer。 (我确信这一点，因为当我将 gesturerecognizer 附加到该 Controller 的 super View (最顶层 View )，并在 mapView 上禁用“用户交互”时，“Tapped”被打印出来。)如何调用这两种方法？

Answer 1

这是一个 worker 类(Class)来比较你做错了什么:

可能是:

1. 没有调用 GMSMapViewDelegate

2. MapView.delegate = self 未设置

3. 缺少 func mapView(**_** MapView: GMSMapView, didTap marker: GMSMarker) -> Bool

   前面的下划线

   class CustomMapPicker: UIViewController, GMSMapViewDelegate
   {
       @IBOutlet weak var MapView: GMSMapView!
   
   override func viewDidLoad()
   {
       super.viewDidLoad()
       MapView.delegate = self
       let camera = GMSCameraPosition.camera(withLatitude: 25.2048, longitude: 55.2708, zoom: 10)
       MapView?.camera = camera
       MapView?.animate(to: camera)
       MapView?.isMyLocationEnabled = false
   }
   
   func mapView(_ MapView: GMSMapView, didTapAt coordinate: CLLocationCoordinate2D)
   {
       print("lat = " + "\(coordinate.latitude)" + " long = " +  "\(coordinate.longitude)")
   }
   
   func mapView(_ MapView: GMSMapView, didTap marker: GMSMarker) -> Bool
   {
       return true
   }
   }