我遇到了谷歌地图标记的问题,我想在触摸屏上放置标记,但我不知道如何处理它。我尝试了几种方法,但都没有效果,在我点击地图时什么也没发生。似乎是按压识别出现了问题。
class MainMapController: UIViewController, CLLocationManagerDelegate {
@IBOutlet weak var viewMap: GMSMapView!
var makers: [GMSMarker] = []
var locationManager = CLLocationManager()
override func viewDidLoad() {
super.viewDidLoad()
initializeTheLocationManager()
self.viewMap.isMyLocationEnabled = true
let longPressRecognizer = UILongPressGestureRecognizer(target: self, action: #selector(handleLongPress))
self.viewMap.addGestureRecognizer(longPressRecognizer)
}
func handleLongPress(recognizer: UILongPressGestureRecognizer)
{
if (recognizer.state == UIGestureRecognizerState.began)
{
let longPressPoint = recognizer.location(in: self.viewMap);
let coordinate = viewMap.projection.coordinate(for: longPressPoint )
let marker = GMSMarker(position: coordinate)
marker.opacity = 0.6
marker.title = "Current Location"
marker.snippet = ""
marker.map = viewMap
makers.append(marker)
}
}
func initializeTheLocationManager()
{
locationManager.delegate = self
locationManager.requestWhenInUseAuthorization()
locationManager.startUpdatingLocation()
}
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
var location = locationManager.location?.coordinate
cameraMoveToLocation(toLocation: location)
locationManager.stopUpdatingLocation()
}
func cameraMoveToLocation(toLocation: CLLocationCoordinate2D?) {
if toLocation != nil {
viewMap.camera = GMSCameraPosition.camera(withTarget: toLocation!, zoom: 15)
}
}