Question

出错，我一整天都在搜索如何使用Corelocation和GoogleMaps。当我在代码的GMScameraposition部分出现错误时，我已经知道了。基本上我试图在加载视图时获取我的位置，这就是为什么大多数都在viewdidload（）中。

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Answer 1

在您拥有更新位置以填充变量之前，您的视图已加载，因此正如您在评论中所述，您的long和lat变量没有任何价值。

我在这里为你写了固定的viewDidLoad和didUpdateLocations函数：

    override func viewDidLoad() {
        super.viewDidLoad()

        locationManager = CLLocationManager()
        locationManager.delegate = self;
        locationManager.desiredAccuracy = kCLLocationAccuracyBest
        locationManager.requestAlwaysAuthorization()
        locationManager.startUpdatingLocation()

        let camera = GMSCameraPosition.cameraWithLatitude(0,
            longitude: 0, zoom:0) //this can be set to wherever you want your view to start at

        //UPDATE: changed the initializing frame to be equal to the view, instead of CGRectZero
        let mapView = GMSMapView.mapWithFrame(self.view.frame, camera:camera)

        let marker = GMSMarker()
        marker.position = camera.target
        marker.snippet = "Hello World"
        marker.appearAnimation = kGMSMarkerAnimationPop
        marker.map = mapView

        self.view = mapView
    }

    //updated! This will tell your camera to snap to your latest location once you've received it.
    func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
        currentLocation = locations.last
        mapView.camera = GMSCameraPosition(target: currentLocation.coordinate, zoom: 6, bearing: 0, viewingAngle: 0)
    }
}

请告诉我这是否适合您。

构建地图app ios时出现致命错误

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