Swift 3 Google 地图 iOS SDK - 通过触摸添加标记

Question

大家好！
我的 iOS 应用程序中有一个 Google 地图，我想做的是当我点击或长按时在地图中添加一个标记，并将坐标保存在数组中
例如：在 Android 中，我有方法 mMap.setOnLongClickListener() 并将这些标记保存在 Latlng 数组类型

中

任何帮助都是有用的！ 谢谢

Answer 1

首先你需要添加一个 UILongPressGestureRecognizer 到你的 GMSMapView 并实现 UIGestureDelegate 协议以使其在 longPress 之后与 GMSMapView 的所有手势同时工作你应该翻译触摸的 CGPoint 并将其转换为 CLLocationCoordinate2D 剩下的是微不足道的

以此为例

//
//  DashedOverlayViewController.swift
//  GoogleMapsExample
//
//  Created by Reinier Melian on 17/07/2017.
//  Copyright © 2017 Pruebas. All rights reserved.
//

import UIKit
import GoogleMaps
import GooglePlaces



class DashedOverlayViewController: UIViewController {

    @IBOutlet weak var mapView: GMSMapView!

    var arrayCoordinates : [CLLocationCoordinate2D] = []

    var longPressRecognizer = UILongPressGestureRecognizer()

    @IBAction func longPress(_ sender: UILongPressGestureRecognizer) {
        debugPrint("You tapped at YES")
        let newMarker = GMSMarker(position: mapView.projection.coordinate(for: sender.location(in: mapView)))
        self.arrayCoordinates.append(newMarker.position)
        newMarker.map = mapView
    }

    override func viewDidLoad() {
        super.viewDidLoad()

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

        mapView.isMyLocationEnabled = true
        mapView.settings.compassButton = true

    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }


}

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

Answer 2

GMSMapView 有一个委托，它有这个方法：

  - (void)mapView:(GMSMapView *)mapView didTapAtCoordinate:(CLLocationCoordinate2D)coordinate;