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私は、地図、私の位置と検索ボタンでアプリケーションを構築しています。今調査の後に自分の位置に戻るためのボタンを実装する必要があります、どうすればいいですか？あなたが最初のユーザの位置を示すために、trueにMKMapViewプロパティshowsUserLocationを設定する必要があり、ユーザーの場所を表示するマップをご希望の場合は、私はこれは私の実際のコード私の位置に戻るボタンスウィフト
import UIKit
import MapKit
import CoreLocation
class MapViewController: UIViewController, UISearchBarDelegate, CLLocationManagerDelegate, MKMapViewDelegate {
var userPosition: CLLocationCoordinate2D!
var managerPosition: CLLocationManager!
@IBOutlet weak var mapView: MKMapView!
@IBAction func searchButton(_ sender: Any) {
let searchController = UISearchController (searchResultsController: nil)
searchController.searchBar.delegate = self
present(searchController, animated: true, completion: nil)
}
override func viewDidLoad() {
super.viewDidLoad()
self.mapView.delegate = self
self.managerPosition = CLLocationManager()
managerPosition.delegate = self
managerPosition.desiredAccuracy = kCLLocationAccuracyNearestTenMeters
managerPosition.requestWhenInUseAuthorization()
managerPosition.startUpdatingLocation()
}
func mapView(_ mapView: MKMapView, didUpdate userLocation: MKUserLocation) {
self.userPosition = userLocation.coordinate
print("Position updated - lat: \(userLocation.coordinate.latitude) long: \(userLocation.coordinate.longitude)")
let span = MKCoordinateSpanMake(0.05, 0.05)
let region = MKCoordinateRegion(center: userPosition, span: span)
mapView.setRegion(region, animated: true)
}
func searchBarSearchButtonClicked(_ searchBar: UISearchBar) {
//ignoring user
UIApplication.shared.beginIgnoringInteractionEvents()
//Activity indicator
let activityIndicator = UIActivityIndicatorView()
activityIndicator.activityIndicatorViewStyle = UIActivityIndicatorViewStyle.gray
activityIndicator.center = self.view.center
activityIndicator.hidesWhenStopped = true
activityIndicator.startAnimating()
self.view.addSubview(activityIndicator)
//hide search bar
searchBar.resignFirstResponder()
dismiss(animated: true, completion: nil)
//create search request
let searchRequest = MKLocalSearchRequest()
searchRequest.naturalLanguageQuery = searchBar.text
let activeSearch = MKLocalSearch(request: searchRequest)
activeSearch.start { (response, error) in
activityIndicator.stopAnimating()
UIApplication.shared.endIgnoringInteractionEvents()
if response == nil {
print("ERROR")
} else {
//remove annotations
let annotations = self.mapView.annotations
self.mapView.removeAnnotations(annotations)
//Getting data
let latitude = response?.boundingRegion.center.latitude
let longitude = response?.boundingRegion.center.longitude
//create annotations
let annotation = MKPointAnnotation()
annotation.title = searchBar.text
annotation.coordinate = CLLocationCoordinate2DMake(latitude!, longitude!)
self.mapView.addAnnotation(annotation)
//zooming annotations
self.managerPosition.startUpdatingLocation()
let coordinate = CLLocationCoordinate2D(latitude: latitude!, longitude: longitude!)
let span = MKCoordinateSpanMake(0.1, 0.1)
let region = MKCoordinateRegionMake(coordinate, span)
self.mapView.setRegion(region, animated: true)
}
}
}
}