import UIKit

//1.导入框架

import MapKit

class ViewController: UIViewController {

    lazy var geoCoder : CLGeocoder = {

        return CLGeocoder()

    }()

    override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {

        geoCoder.geocodeAddressString("广州") { (pls, err) in

            //广州坐标

            guard let gzPL = pls?.first else{

                return

            }

            self.geoCoder.geocodeAddressString("上海", completionHandler: { (pls, err) in

                //上海坐标

                if let shPL = pls?.first{

                    self.beginNav(startPLCL: gzPL, endPLCL: shPL)

                }

            })

        }

    }

}

// MARK: - 导航起点和终点

extension ViewController{

    func beginNav(startPLCL: CLPlacemark, endPLCL: CLPlacemark) {

        // 起点

        let plMK: MKPlacemark = MKPlacemark(placemark: startPLCL)

        let startItem: MKMapItem = MKMapItem(placemark: plMK)

        // 终点

        let endplMK: MKPlacemark = MKPlacemark(placemark: endPLCL)

        let endItem: MKMapItem = MKMapItem(placemark: endplMK)

        // 起点和终点

        let mapItems: [MKMapItem] = [startItem, endItem]

        // 导航设置字典

        let dic: [String : Any] = [

            // 导航模式

            MKLaunchOptionsDirectionsModeKey: MKLaunchOptionsDirectionsModeDriving,

            // 地图样式

            MKLaunchOptionsMapTypeKey: MKMapType.standard.rawValue,

            // 显示交通

            MKLaunchOptionsShowsTrafficKey: true

        ]

        MKMapItem.openMaps(with: mapItems, launchOptions: dic)

    }

}