显示当前位置地名 ios 地图套件

Question

我正在创建一个已经具有基于 ios mapkit 的签到功能的应用程序。目前它只显示城市和国家，但我的客户想要更多。Het 希望能够像 instagram 一样在地方签到。（地名，例如Restoname..）

我想知道地图套件库是否可以做到这一点？如果是这样，是否有人对此有一个代码示例。??

Answer 1

听起来您想使用地标和注释。创建MapView时，请确保它符合MKMapViewDelegate：

extension ViewController: MKMapViewDelegate {
    func mapView(_ mapView: MKMapView, didAdd views: [MKAnnotationView]) {
        // once annotationView is added to the map, get the last one added unless it is the user's location:
        if let annotationView = views.last {
            // show callout programmatically:
            mapView.selectAnnotation(annotationView.annotation!, animated: false)
            // zoom to all annotations on the map:
            mapView.showAnnotations(mapView.annotations, animated: true)
        }
    }
}

然后，您可以从字符串中对地址进行地理定位（这将是写出的地址：123 Fake St.，New York，NY ....

func createGeoLocationFromAddress(_ address: String, mapView: MKMapView) {

    let completion:CLGeocodeCompletionHandler = {(placemarks: [CLPlacemark]?, error: Error?) in
        if let placemarks = placemarks {
            for placemark in placemarks {
                mapView.removeAnnotations(mapView.annotations)
                // Instantiate annotation
                let annotation = MKPointAnnotation()
                // Annotation coordinate
                annotation.coordinate = (placemark.location?.coordinate)!
                annotation.title = placemark.thoroughfare! + ", " + placemark.subThoroughfare!
                annotation.subtitle = placemark.subLocality
                mapView.addAnnotation(annotation)
                mapView.showsPointsOfInterest = true
                self.centerMapOnLocation(placemark.location!, mapView: mapView)
            }
        } else {
        }
    }
    CLGeocoder().geocodeAddressString(address, completionHandler: completion)
}
func centerMapOnLocation(_ location: CLLocation, mapView: MKMapView) {
    let regionRadius: CLLocationDistance = 1000
    let coordinateRegion = MKCoordinateRegionMakeWithDistance(location.coordinate, regionRadius * 2.0, regionRadius * 2.0)
    mapView.setRegion(coordinateRegion, animated: true)
}

然后，您只需调用即可将注释放置在地图上

createGeoLocationFromAddress(addressString, mapView: mapKit)

这应该有效。希望对你有帮助