通过MapKit获取道路距离-Swift

如果我想获得公路距离,我应该考虑哪些课程？

我想要的只是从A点到B点的道路距离,我不需要显示一步一步的指示,也不需要显示地图.

有什么建议？

谢谢

1> Onato..：

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您需要发出MKDirections请求.从calculateDirectionsWithCompletionHandler您将获得MKDirectionsResponse.这有一个MKRoutes的路由数组.每条路线都有一个距离(即道路距离)属性.

    let source = MKMapItem( placemark: MKPlacemark(
        coordinate: CLLocationCoordinate2DMake(-41.27, 173.28),
        addressDictionary: nil))
    let destination = MKMapItem(placemark: MKPlacemark(
        coordinate: CLLocationCoordinate2DMake(-41.11, 173),
        addressDictionary: nil))

    let directiOnsRequest= MKDirectionsRequest()
    directionsRequest.source = source
    directionsRequest.destination = destination

    let directiOns= MKDirections(request: directionsRequest)

    directions.calculateDirectionsWithCompletionHandler { (response, error) -> Void in
        print(error)
        let distance = response!.routes.first?.distance // meters
        print("\(distance! / 1000)km")
    }

---

我每次使用此代码时都会得到这个错误Domain = MKErrorDomain Code = 3"Directions Not Available"UserInfo = 0x7fc96da18bf0 {NSLocalizedFailureReason =此时路由信息不可用.,MKErrorGEOError = -4,MKDirectiOnsErrorCode= 2,NSLocalizedDescription = Directions Not可用}致命错误:在解包可选值时意外发现nil