ios - 当前位置谷歌地图 swift ，无法访问defaultLocation.coordinate

Question

我一直在查看谷歌文档来获取当前位置，但我很难在 ViewDidLoad 中指定位置，正如您所看到的，我已将位置固定设置为 Syndey Australia。在谷歌文档文档中指定当前位置时，他们使用“默认location.coordinate”，我无法在代码中访问defaultLocation.coordinate。

这里是文档的链接:https://developers.google.com/maps/documentation/ios-sdk/current-place-tutorial

这是viewDidLoad内的代码

    GMSServices.provideAPIKey("AIzaSyARsPfNs54hrUAC4yKtHeu2jXfGjeA0b-E")
    GMSPlacesClient.provideAPIKey("AIzaSyARsPfNs54hrUAC4yKtHeu2jXfGjeA0b-E ")
    let camera = GMSCameraPosition.camera(withLatitude: -33.86, longitude: 151.20, zoom: 6.0)
    mapView = GMSMapView.map(withFrame: CGRect.zero, camera: camera)
    view = mapView

    // creating the marker //

    let marker = GMSMarker()
    marker.position = CLLocationCoordinate2D(latitude: -33.86, longitude: 151.20)
    marker.title = "Sydney"
    marker.snippet = "Australia"
    marker.map = mapView

这是我的扩展代码

 extension MapsViewController: CLLocationManagerDelegate {
     func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
     let location : CLLocation = locations.last!
     print("Location:\(location)")
     let camera = GMSCameraPosition.camera(withLatitude: location.coordinate.latitude, longitude: location.coordinate.longitude, zoom: zoomLevel)
     if mapView.isHidden {
        mapView.isHidden = false
        mapView.camera = camera
      } 
      else {
        mapView.animate(to: camera)
    }

}
  func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) {
    switch status {
    case .restricted:
        // display the map the default location
        mapView.isHidden = false
    case .denied :
        print("User denied access to location")
        mapView.isHidden = false
    case .notDetermined :
        print("Location status not deteremined")
    case .authorizedAlways  : fallthrough
    case . authorizedWhenInUse :
        print("Location status is OK")

    }
}

Answer 1

我认为您错过了在 Info.plist 文件中添加关键 NSLocationWhenInUseUsageDescription。

将此 key 添加到使用说明中。然后它应该显示一个 iOS 系统弹出窗口以允许位置访问。