ios - Swift iOS MapKit 及时行驶距离

Question

当您在苹果 map 中搜索城市等时，它还会在指针旁边显示开车到那里所需的时间。这是 mapKit API 中内置的东西吗？

到目前为止我的代码是:

import UIKit
import MapKit

class ShowMapViewController: UIViewController {

    var annotation:MKAnnotation!
    var localSearchRequest:MKLocalSearchRequest!
    var localSearch:MKLocalSearch!
    var localSearchResponse:MKLocalSearchResponse!
    var error:NSError!
    var pointAnnotation:MKPointAnnotation!
    var pinAnnotationView:MKPinAnnotationView!

    //Map
    @IBOutlet weak var mapView: MKMapView!

    //Exitbutton

    @IBAction func exitMapButtonDidTouch(sender: AnyObject) {
        dismissViewControllerAnimated(true, completion: nil)
    }


    override func viewDidLoad() {
        super.viewDidLoad()

        //TODO: Search zip, if not found search city
        localSearchRequest = MKLocalSearchRequest()
        localSearchRequest.naturalLanguageQuery = "My city"
        localSearch = MKLocalSearch(request: localSearchRequest)
        localSearch.startWithCompletionHandler { (localSearchResponse, error) -> Void in

            //Show city if zip not found
            if localSearchResponse == nil{
                var alert = UIAlertView(title: nil, message: "Place not found", delegate: self, cancelButtonTitle: "Try again")
                alert.show()
                return
            }

            //Show map and pointer
            self.pointAnnotation = MKPointAnnotation()
            //self.pointAnnotation.title = "My city" 
            self.pointAnnotation.coordinate = CLLocationCoordinate2D(latitude: localSearchResponse.boundingRegion.center.latitude, longitude:     localSearchResponse.boundingRegion.center.longitude)


            self.pinAnnotationView = MKPinAnnotationView(annotation: self.pointAnnotation, reuseIdentifier: nil)
            self.mapView.centerCoordinate = self.pointAnnotation.coordinate
            self.mapView.addAnnotation(self.pinAnnotationView.annotation)
        }

    }


}

有了这个，我可以在指针上方添加​​一个标题，但是否也可以显示时间/距离？

提前致谢

Answer 1

是的，这是 Apple 内置的东西!它称为 MKRoute，可以为您提供两点之间的旅行时间。

您可以在执行 MKDirectionsRequest 之后创建一个 MKRoute。

这是一个 link对于使用 MKDirectionsRequest 的项目，到 apple documentation ，以及指向 EVEN MORE 的链接有关该主题的有用文档。

祝你好运!