iOS Swift - 在MKMapView中使用多個座標繪製路線

Question

我得到了（lat，long）用戶所走過的所有點。

Apple Mapkit爲我提供了在開始位置和目的地位置之間繪製路線的方法。

但我想包括我所有的用戶旅行的觀點。

以下是在開始和結束位置之間繪製路線的代碼。

let startloc = todaysLocationList.first 
let endloc = todaysLocationList.last 

// 2. 
let sourceLocation = CLLocationCoordinate2D(latitude: (startloc?.latitude)!, longitude: (startloc?.longitude)!) 
        let destinationLocation = CLLocationCoordinate2D(latitude: (endloc?.latitude)!, longitude: (endloc?.longitude)!) 

// 3. 
let sourcePlacemark = MKPlacemark(coordinate: sourceLocation, addressDictionary: nil) 
let destinationPlacemark = MKPlacemark(coordinate: destinationLocation, addressDictionary: nil) 

// 4. 
let sourceMapItem = MKMapItem(placemark: sourcePlacemark) 
        let destinationMapItem = MKMapItem(placemark: destinationPlacemark) 

// 5. 
let sourceAnnotation = MKPointAnnotation() 
sourceAnnotation.title = "Times Square" 

if let location = sourcePlacemark.location { 
         sourceAnnotation.coordinate = location.coordinate 
        } 


let destinationAnnotation = MKPointAnnotation() 
        destinationAnnotation.title = "Empire State Building" 

if let location = destinationPlacemark.location { 
         destinationAnnotation.coordinate = location.coordinate 
        } 

// 6. 
           mapView.showAnnotations([sourceAnnotation,destinationAnnotation], animated: true) 

// 7. 
let directionRequest = MKDirectionsRequest() 
directionRequest.source = sourceMapItem 
directionRequest.destination = destinationMapItem 
directionRequest.transportType = .automobile 

// Calculate the direction 
let directions = MKDirections(request: directionRequest) 

// 8. 
directions.calculate { 
         (response, error) -> Void in 

         guard let response = response else { 
          if let error = error { 
           print("Error: \(error)") 
          } 

          return 
         } 

         let route = response.routes[0] 
         mapView.add((route.polyline), level: MKOverlayLevel.aboveRoads) 

         let rect = route.polyline.boundingMapRect 
         mapView.setRegion(MKCoordinateRegionForMapRect(rect), animated: true) 
        } 

我的問題是： 有什麼辦法，我可以包括我的其他點，而在mapkit描繪路徑？

任何建議，鏈接....高度讚賞。

問候。

Answer 1

下面是一些類似答案中的Objective-C代碼，應該可以幫助你。

https://stackoverflow.com/a/23818032/3704795

MapKit是一個非常強大的API！