如何缩放到 Swift 3 (Xcode 8) 中的特定坐标？

Question

我正在尝试使用坐标缩放到特定位置。我怎样才能做到这一点？

Answer 1

import UIKit
import MapKit

class HomeViewController: UIViewController, MKMapViewDelegate {

@IBOutlet weak var mapView: MKMapView!

override func viewDidLoad() {
    super.viewDidLoad()
    mapView.showsUserLocation = true


    if let userLocation = mapView.userLocation.location {
        //let frontedUserLocation = CLLocationCoordinate2DMake(37.7857, -122.4021)
        mapView.centerCoordinate = userLocation.coordinate
        //mapView.centerCoordinate = frontedUserLocation
        //let region = MKCoordinateRegionMakeWithDistance(frontedUserLocation, 1855, 1855)
        let region = MKCoordinateRegionMakeWithDistance(userLocation.coordinate, 9484.1, 9484.1)
        mapView.setRegion(region, animated: true)
    }
    mapView.delegate = self
}

如何缩放到 Swift 3 (Xcode 8) 中的特定坐标？

How can I zoom to certain coordinates in Swift 3 (Xcode 8)?

ios

swift3

xcode8