ios – I Draw a poly line on google maps in my app i wish to draw a dotted path the hole b/w poly line and my marker

each one i attempted a number of methodology however there’s at all times hole b/w my poly line and drawn marker the place my route finish. i wish to draw dotted path the hole b/w my polyline and marker i additionally tried strolling url however nonetheless it doesnot work please assist how am i able to fill this hole that at all times right here what ever. lat and lengthy. i take advantage of for. each polyy liine and marker settup[enter image description here](https://i.stack.imgur.com/cHg30.png) black one for driving and inexperienced one for strolling

extension MapViewController: SetUpLocationDisplayLogic {
func mapRouteSetup(startlatitude: Double, startlongitude: Double, endlatitude: Double, endlongitude: Double) {
let apiKey = “AIzaSyBsdpz4AX5T6uqLxqJXUgEDtoxd0TIiJ2w”

    // Outline the URLs for strolling and driving routes
    let walkingRequestURL = "https://maps.googleapis.com/maps/api/instructions/json?origin=(startlatitude),(startlongitude)&vacation spot=(endlatitude),(endlongitude)&mode=strolling&key=(apiKey)"
    
    let drivingRequestURL = "https://maps.googleapis.com/maps/api/instructions/json?origin=(startlatitude),(startlongitude)&vacation spot=(endlatitude),(endlongitude)&key=(apiKey)"
    
    // Make API requests for each strolling and driving routes
    URLSession.shared.dataTask(with: URL(string: walkingRequestURL)!) { (information, response, error) in
        if let information = information {
            // Parse and draw strolling route
            self.drawWalkingRoute(information: information)
        } else if let error = error {
            print("Error making the strolling route API request: (error)")
        }
    }.resume()
    
    URLSession.shared.dataTask(with: URL(string: drivingRequestURL)!) { (information, response, error) in
        if let information = information {
            // Parse and draw driving route
            self.drawDrivingRoute(information: information)
        } else if let error = error {
            print("Error making the driving route API request: (error)")
        }
    }.resume()
}

func drawWalkingRoute(information: Information) {
    if let path = createPathFromRouteData(information) {
        DispatchQueue.primary.async {
            // Create a GMSPolyline for the strolling route
            let polyline = GMSPolyline(path: path)
            polyline.strokeColor = .appColor(.x8DC63F) // Customise the colour as wanted
            polyline.strokeWidth = 10.0 // Customise the width as wanted
            polyline.map = self.mapView
        }
    }
}

func drawDrivingRoute(information: Information) {
    if let path = createPathFromRouteData(information) {
        DispatchQueue.primary.async {
            // Create a GMSPolyline for the driving route
            let polyline = GMSPolyline(path: path)
            polyline.strokeColor = .appColor(.x434343) // Customise the colour as wanted
            polyline.strokeWidth = 10.0 // Customise the width as wanted
            polyline.map = self.mapView
        }
    }
}

func createPathFromRouteData(_ routeData: Information) -> GMSPath? {
    do {
        let jsonObject = attempt JSONSerialization.jsonObject(with: routeData, choices: [])
        
        if let jsonDict = jsonObject as? [String: Any],
           let routes = jsonDict["routes"] as? [[String: Any]],
           let firstRoute = routes.first,
           let overviewPolyline = firstRoute["overview_polyline"] as? [String: Any],
           let factors = overviewPolyline["points"] as? String {
            
            let path = GMSPath(fromEncodedPath: factors)
            return path
        }
    } catch {
        print("Error parsing route information: (error)")
    }
    
    return nil
}


func didFindLocation(startaddress: String, endaddress: String, startlatitude: Double, startlongitude: Double, endlatitude: Double, endlongitude: Double) {
    DispatchQueue.primary.async { [weak self] in
        self?.startingTextField.textual content = startaddress
        self?.endingTextField.textual content = endaddress
        
        let digital camera = GMSCameraPosition.digital camera(
            withLatitude: startlatitude,
            longitude: startlongitude,
            zoom: 12.0
        )
        self?.mapView.digital camera = digital camera
        
        let firstMarkerPosition = CLLocationCoordinate2D(
            latitude: startlatitude,
            longitude: startlongitude
        )
        self?.showMarker(
            place: firstMarkerPosition,
            title: "First Location",
            snippet: "One other Location",
            icon: (self?.customMarkerImage ?? self?.placeHolder)!
        )
        
        let secondMarkerPosition = CLLocationCoordinate2D(
            latitude: endlatitude,
            longitude: endlongitude
        )
        self?.showMarker(
            place: secondMarkerPosition,
            title: "Second Location",
            snippet: "One other Location",
            icon: (self?.customMarkerImage ?? self?.placeHolder)!
        )
        
        // Name the mapRouteSetup perform with the offered latitude and longitude
        self?.mapRouteSetup(startlatitude: startlatitude, startlongitude: startlongitude, endlatitude: endlatitude, endlongitude: endlongitude)
        
        
    }
    
}

}