斯威夫特放大用户的位置

Question

我试图找出如何放大到用户的位置雨燕2.1。我搜遍了互联网的世界，但无法找到解决方案。谢谢Renier梅丽安帮助我开始这一点，但它并没有询问地点的授权，然后给出错误信息

import Foundation 
import MapKit 
import CoreLocation 

class SocialViewController : UIViewController { 

    @IBOutlet weak var mapView: MKMapView! 
    var locationManager = CLLocationManager() 

    override func viewDidLoad() { 
     self.locationManager.requestWhenInUseAuthorization() 
     super.viewDidLoad() 
     self.mapView.showsUserLocation = true 
     self.mapView.userTrackingMode = .Follow 
     self.mapView.delegate = self 
     self.locationManager.startUpdatingLocation() 
     self.locationManager.delegate = self 
    } 
} 

extension SocialViewController : MKMapViewDelegate{ 
    //Adjusting the zoom 
    func mapView(_ mapView: MKMapView, didUpdate userLocation: MKUserLocation) { 
     var region = MKCoordinateRegion() 
     region.span = MKCoordinateSpanMake(0.7, 0.7); //Zoom distance 
     let coordinate = CLLocationCoordinate2D(latitude: userLocation.coordinate.latitude, longitude: userLocation.coordinate.longitude) 
     region.center = coordinate 
     mapView.setRegion(region, animated: true) 
    } 

    func mapViewWillStartLocatingUser(_ mapView: MKMapView) { 
     debugPrint("startLocating") 
    } 
    func mapViewDidStopLocatingUser(_ mapView: MKMapView) { 
     debugPrint("stopLocating") 
    } 
} 

extension SocialViewController: CLLocationManagerDelegate 
{ 
    func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) { 
     debugPrint("received Location") 
    } 
} 

Answer 1

尝试使用此代码，改变MKCoordinateSpanMake值可以增加或减少放大

您viewDidLoad方法

import MapKit 
import CoreLocation 

class SocialViewController : UIViewController { 

@IBOutlet weak var mapView: MKMapView! 
var locationManager = CLLocationManager() 

override func viewDidLoad() { 
    super.viewDidLoad() 
    self.mapView.showsUserLocation = true 
    self.mapView.userTrackingMode = .follow 
    self.mapView.delegate = self 
    self.locationManager.requestWhenInUseAuthorization() 
    self.locationManager.startUpdatingLocation() 
    self.locationManager.delegate = self 
} 
} 

extension SocialViewController : MKMapViewDelegate{ 
    //Adjusting the zoom 
    func mapView(_ mapView: MKMapView, didUpdate userLocation: MKUserLocation) { 
     var region = MKCoordinateRegion() 
     region.span = MKCoordinateSpanMake(0.7, 0.7); //Zoom distance 
     let coordinate = CLLocationCoordinate2D(latitude: userLocation.coordinate.latitude, longitude: userLocation.coordinate.longitude) 
     region.center = coordinate 
     mapView.setRegion(region, animated: true) 
    } 

    func mapViewWillStartLocatingUser(_ mapView: MKMapView) { 
     debugPrint("startLocating") 
    } 
    func mapViewDidStopLocatingUser(_ mapView: MKMapView) { 
     debugPrint("stopLocating") 
    } 
} 

extension SocialViewController: CLLocationManagerDelegate 
{ 
    func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) { 
     debugPrint("received Location") 
    } 

}

添加隐私键添加此行您info.plist中

工作！

希望这有助于