ios – SWIFT Mapview MKRoutePolyline interiorPolygons：无法识别的选择器发送到实例0x14ed4b4d0

概述我正在尝试制作导航应用 但是当我尝试导航并显示“MKRoutePolyline”时,这个应用程序崩溃了 interiorPolygons：发送到实例0x14ed4b4d0的无法识别的选择器“ 我的代码怎么了？ import UIKitimport MapKitclass MapViewController: UIViewController, MKMapViewDelegate {var f 我正在尝试制作导航应用

但是当我尝试导航并显示“MKRoutepolyline”时,这个应用程序崩溃了

interiorpolygons：发送到实例0x14ed4b4d0的无法识别的选择器“

我的代码怎么了？

import UIKitimport MapKitclass MapVIEwController: UIVIEwController,MKMapVIEwDelegate {var farm:Farm!var currentPlacemark:CLPlacemark?let locationManager = CLLocationManager()var currentTransportType = MKDirectionsTransportType.automobilevar currentRoute:MKRoute?@IBOutlet var mapVIEw:MKMapVIEw!@IBAction func showDirection(sender: AnyObject){    let directionRequest = MKDirectionsRequest()    directionRequest.source = MKMAPItem.mAPItemForCurrentLocation()    let destinationPlacemark = MKPlacemark(placemark: currentPlacemark!)    directionRequest.destination = MKMAPItem(placemark: destinationPlacemark)    directionRequest.transportType = currentTransportType    let directions = MKDirections(request: directionRequest)    directions.calculateDirectionsWithCompletionHandler { (routeResponse,routeError) -> VoID in        guard let routeResponse = routeResponse else {            if let routeError = routeError {                print("Error: \(routeError)")            }            return        }        let route = routeResponse.routes[0]        self.currentRoute = route        self.mapVIEw.removeOverlays(self.mapVIEw.overlays)        self.mapVIEw.addOverlay(route.polyline,level: MKOverlayLevel.AboveRoads)    }}func mapVIEw(mapVIEw: MKMapVIEw,rendererForOverlay overlay: MKOverlay) -> MKOverlayRenderer {    let renderer = mkpolygonrenderer(overlay: overlay)    renderer.strokecolor = UIcolor.yellowcolor()    renderer.linewidth = 3.0    return renderer}

解决方法 看来你想渲染一条线.
但多边形是一种形状
所以你的代码应该是：

let renderer = MKpolylineRenderer(overlay: overlay)

但不是：

let renderer = mkpolygonrenderer(overlay: overlay)

在

func mapVIEw(mapVIEw: MKMapVIEw,rendererForOverlay overlay: MKOverlay) -> MKOverlayRenderer

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