我正在尝试在我的应用程序中创建一个函数,该函数将引导用户到我创建的标记。这是我使用的代码,它运行良好,它获取用户当前位置并在地图上显示它。但是如何获得指向标记的方向?任何答案都将有所帮助。
class Karta: UIViewController, CLLocationManagerDelegate {
@IBOutlet var mapView: GMSMapView!
let locationManager = CLLocationManager()
override func viewDidLoad() {
super.viewDidLoad()
//allow app to track user
locationManager.delegate = self
locationManager.requestWhenInUseAuthorization()
//set out a marker on the map
var marker = GMSMarker()
marker.position = CLLocationCoordinate2DMake(56.675907, 12.858798)
marker.appearAnimation = kGMSMarkerAnimationPop
marker.icon = UIImage(named: "flag_icon")
marker.map = mapView
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if segue.identifier == "Types Segue" {
let navigationController = segue.destinationViewController as UINavigationController
}
}
func locationManager(manager: CLLocationManager!, didChangeAuthorizationStatus status: CLAuthorizationStatus) {
//If map is being used
if status == .AuthorizedWhenInUse {
var myLocation = mapView
locationManager.startUpdatingLocation()
mapView.myLocationEnabled = true
mapView.settings.myLocationButton = true
}
}
func locationManager(manager: CLLocationManager!, didUpdateLocations locations: [AnyObject]!) {
if let location = locations.first as? CLLocation {
mapView.camera = GMSCameraPosition(target: location.coordinate, zoom: 15, bearing: 0, viewingAngle: 0)
locationManager.stopUpdatingLocation()
}
}
}