Ios 谷歌地图中的长按

帮我解决这个问题。我试图在谷歌地图上追踪一个长时间的点击，但是我做不到。下面是我的代码示例：

import UIKit
import GoogleMaps

class ViewController: UIViewController {
@IBOutlet var mMap: GMSMapView!

var longPressRecognizer = UILongPressGestureRecognizer()

@IBAction func longPress(_ sender: UILongPressGestureRecognizer) {
    testTextview.text = "You tapped at YES"
}

override func viewDidLoad() {
    super.viewDidLoad()

 longPressRecognizer = UILongPressGestureRecognizer(target: self, 
 action: #selector(self.longPress))
 longPressRecognizer.minimumPressDuration = 0.5
 mMap.addGestureRecognizer(longPressRecognizer)

 mMap.isMyLocationEnabled = true 
 mMap.settings.compassButton = true 
 mMap.camera = GMSCameraPosition.camera(withLatitude: 54.9044200, 
 longitude: 52.3154000, zoom: 15.0)
 }
}

---

使用此代码不会发生。我尝试了stackoverflow上的所有方法，但什么也没发生。

GMSMapView

类有很多不同的手势识别器，因此您需要添加一个

UIgestureRecognitizerDelegate

实现将此方法添加到您的viewController中

应与
同时识别

以下是您需要修改的内容

添加

extension ViewController : UIGestureRecognizerDelegate
{
    public func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldRecognizeSimultaneouslyWith otherGestureRecognizer: UIGestureRecognizer) -> Bool
    {
        return true
    }
}

longPressRecognizer.delegate = self

添加

extension ViewController : UIGestureRecognizerDelegate
{
    public func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldRecognizeSimultaneouslyWith otherGestureRecognizer: UIGestureRecognizer) -> Bool
    {
        return true
    }
}

longPressRecognizer.delegate = self

此行下方
longPressRecognizer.minimumPressDuration=0.5

完整代码

import UIKit
import GoogleMaps

class ViewController: UIViewController {
@IBOutlet var mMap: GMSMapView!

var longPressRecognizer = UILongPressGestureRecognizer()

@IBAction func longPress(_ sender: UILongPressGestureRecognizer) {
    testTextview.text = "You tapped at YES"
}

override func viewDidLoad() {
    super.viewDidLoad()

 longPressRecognizer = UILongPressGestureRecognizer(target: self, 
 action: #selector(self.longPress))
 longPressRecognizer.minimumPressDuration = 0.5
 longPressRecognizer.delegate = self
 mMap.addGestureRecognizer(longPressRecognizer)

 mMap.isMyLocationEnabled = true 
 mMap.settings.compassButton = true 
 mMap.camera = GMSCameraPosition.camera(withLatitude: 54.9044200, 
 longitude: 52.3154000, zoom: 15.0)
 }
}

extension ViewController : UIGestureRecognizerDelegate
    {
        public func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldRecognizeSimultaneouslyWith otherGestureRecognizer: UIGestureRecognizer) -> Bool
        {
            return true
        }
    }

只需将viewController类指定为GMSMapViewDelegate的委托即可

override func viewDidLoad() {
    super.viewDidLoad()
    self.mMap.delegate = self
    //....
}

并按以下方法跟踪长按

extension ViewController: GMSMapViewDelegate {
    func mapView(_ mapView: GMSMapView, didLongPressAt coordinate: CLLocationCoordinate2D) {
        print(coordinate)
    }
}

您好-如果从函数中删除@iAction装饰器，会发生什么情况？（您可能需要将其替换为@objc）。此方法也不需要work@ildar1989对此有何反馈？