Swift 3 随用户方向旋转 map

Question

目前我的 swift 应用程序有一个带有各种注释的 map View ，当用户从 map 上的各种注释中行走时，有没有办法不总是锁定在北方方向？我希望 map 转向他们行走的方向，而不是总是指向北方。

这是我当前的更新位置函数

func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation])
{

    let location = locations[0]
    let myLocation:CLLocationCoordinate2D = CLLocationCoordinate2DMake(location.coordinate.latitude, location.coordinate.longitude)
    let region:MKCoordinateRegion = MKCoordinateRegionMake(myLocation, noteTime.span)
    map.setRegion(region, animated: true)
    self.map.showsUserLocation = true
    map.tintColor = UIColor(red:0.19, green:0.69, blue:0.73, alpha:1.0)
}

我应该在这里声明吗？

Answer 1

此示例会将 mapView 的旋转更新为指向与用户相同的方向。

import UIKit
import MapKit
import CoreLocation

class ViewController: UIViewController, CLLocationManagerDelegate {

    @IBOutlet weak var mapView: MKMapView!

    let locationManager = CLLocationManager()

    override func viewDidLoad() {
        super.viewDidLoad()

        locationManager.delegate = self
        locationManager.startUpdatingHeading()
    }

    func locationManager(_ manager: CLLocationManager, didUpdateHeading newHeading: CLHeading) {
        mapView.camera.heading = newHeading.magneticHeading
        mapView.setCamera(mapView.camera, animated: true)
    }
}

这就是你想要的吗？希望对您有所帮助:)