Ios 如何使用谷歌API锁定用户的当前位置？

我添加了GoogleMaps API，它显示了硬编码的位置，代码如下：

import UIKit
import GoogleMaps

class OurViewController: UIViewController, CLLocationManagerDelegate{

    // Other variables

    var locationManager = CLLocationManager()

    override func viewDidLoad() {

        super.viewDidLoad()

        locationManager.delegate = self
        locationManager.requestWhenInUseAuthorization()

        //google map 
        let camera = GMSCameraPosition.cameraWithLatitude(13.034211,
        longitude: 77.5670453, zoom: 16)
        let mapView = GMSMapView.mapWithFrame(CGRectZero, camera: camera)
        mapView.myLocationEnabled = true
        self.view = mapView

        let marker = GMSMarker()
        marker.position = CLLocationCoordinate2DMake(13.034211, 77.5670453)
        marker.title = "globals inc"
        marker.snippet = "bangalore"
        marker.map = mapView
    }
}

有人能帮我指出如何获取用户位置吗？

请通过-

及

---

希望这有帮助。

它给出错误exc\U bad\U指令（代码=exc\U 1386\U invop，子代码=0x0）