形状，多边形，未显示在谷歌地图上

Question

我无法让我的多边形显示在地图上。这是我下面的代码。

import UIKit
import MapKit
import CoreLocation
import GoogleMaps
import GooglePlaces
class ViewController: UIViewController{

@IBOutlet weak var mapView: GMSMapView!

//private let locationManager = CLLocationManager()
var placesClient: GMSPlacesClient!
var locationManager = CLLocationManager()
var mapsView : GMSMapView!
var zoomLevel: Float = 15.0
var polygon = GMSPolygon()
var didFindMyLocation = false
// let overlay = UIView()

let defaultLocation = CLLocation(latitude: -33.869405, longitude: 151.99)
let path = GMSMutablePath()

override func viewDidLoad() {
super.viewDidLoad()
mapsView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
mapsView.isMyLocationEnabled = true
view.addSubview(mapsView)
mapsView.isHidden = true

}
func createpolygon() {
// Create a rectangular path
let rect = GMSMutablePath()
rect.add(CLLocationCoordinate2D(latitude: 37.36, longitude: -122.0))
rect.add(CLLocationCoordinate2D(latitude: 37.45, longitude: -122.0))
rect.add(CLLocationCoordinate2D(latitude: 37.45, longitude: -122.2))
rect.add(CLLocationCoordinate2D(latitude: 37.36, longitude: -122.2))
// Create a polygon and assign it to the map.
let polygon = GMSPolygon(path: rect)
polygon.fillColor = UIColor(red: 0.25, green: 0, blue: 0, alpha: 0.05);
polygon.strokeColor = .black
polygon.strokeWidth = 2
polygon.map = mapsView
}

我不知道我是否需要添加叠加层。

Answer 1

你有两个地图视图，只需使用其中一个

@IBOutlet weak var mapView: GMSMapView!
var mapsView : GMSMapView!

喜欢这个

class ViewController: UIViewController{
@IBOutlet weak var mapView: GMSMapView!

//private let locationManager = CLLocationManager()
var placesClient: GMSPlacesClient!
var locationManager = CLLocationManager()
var zoomLevel: Float = 15.0
var polygon = GMSPolygon()
var didFindMyLocation = false
// let overlay = UIView()

let defaultLocation = CLLocation(latitude: -33.869405, longitude: 151.99)
let path = GMSMutablePath()

override func viewDidLoad() {
super.viewDidLoad()
mapView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
mapView.isMyLocationEnabled = true
mapView.isHidden = true

}
func createpolygon() {
// Create a rectangular path
let rect = GMSMutablePath()
rect.add(CLLocationCoordinate2D(latitude: 37.36, longitude: -122.0))
rect.add(CLLocationCoordinate2D(latitude: 37.45, longitude: -122.0))
rect.add(CLLocationCoordinate2D(latitude: 37.45, longitude: -122.2))
rect.add(CLLocationCoordinate2D(latitude: 37.36, longitude: -122.2))
// Create a polygon and assign it to the map.
let polygon = GMSPolygon(path: rect)
polygon.fillColor = UIColor(red: 0.25, green: 0, blue: 0, alpha: 0.05);
polygon.strokeColor = .black
polygon.strokeWidth = 2
polygon.map = mapView
}