I'm drawing navigation road at Swift. I'm using current location to another location and made a draw. Afterward, I select another location and redraw it. But even if I write mapView.remove(rotapoly) in my code, it doesnt remove it. How can I solve this?
func mapView(_ mapView: MKMapView, annotationView view: MKAnnotationView, calloutAccessoryControlTapped control: UIControl) {
cizim = 1;
let capital = view.annotation as! Station
guard let locValue: CLLocationCoordinate2D = locationManager.location?.coordinate else { return }
let neresi = CLLocationCoordinate2D(latitude: capital.latitude, longitude: capital.longitude)
let nerdeyim = CLLocationCoordinate2D(latitude: locValue.latitude, longitude: locValue.longitude)
let request = MKDirectionsRequest()
request.source = MKMapItem(placemark: MKPlacemark(coordinate: nerdeyim, addressDictionary: nil))
request.destination = MKMapItem(placemark: MKPlacemark(coordinate: neresi, addressDictionary: nil))
request.requestsAlternateRoutes = true
request.transportType = .walking
let directions = MKDirections(request: request)
directions.calculate { [unowned self] response, error in
guard let unwrappedResponse = response else { return }
if (unwrappedResponse.routes.count > 0) {
self.showRoute(response!)
}
}
}
func showRoute(_ response: MKDirectionsResponse) {
mapView.remove(rotapoly)
for route in response.routes {
rotapoly = route.polyline
mapView.add(rotapoly, level: MKOverlayLevel.aboveRoads)
for step in route.steps {
print(step.instructions)
}
}
}
use map view method
self.mapview.removeOverlays(self.mapview.overlays)
this will remove all overlays you have added so you have to do whole process again its like reloading map view
Below is the approach to remove travelled polyline from google map iOS Swift:
var oldPolyLines = [GMSPolyline]() /* Global Array Variable of your Class */
Put below code where you are parsing routes and getting new polyline from direction API.
if self.oldPolyLines.count > 0 {
for polyline in self.oldPolyLines {
polyline.map = nil
}
}
self.oldPolyLines.append(yourNewPolyline)
yourNewPolyLine.map = self.mapView
Related
Currently I can render the spheres using latitude and longitude in ARKit Geolocation Tracking , can anyone please guide me how can I draw polyline between 2 CLLocation in ARKit .
here is a full code to create poly line between two points and also set a width and color of that poly line
var locManager = CLLocationManager()
var currentLocation: CLLocation!
let annotation = MKPointAnnotation()
let annotation2 = MKPointAnnotation()
// MARK:- DRIVER -
var driverLatitute:String!
var driverLongitude:String!
// MARK:- RESTAURANT -
var restaurantLatitude:String!
var restaurantLongitude:String!
IN VIEW DID LOAD
// MARK:- 1 ( MAP ) -
self.locManager.requestWhenInUseAuthorization()
if CLLocationManager.locationServicesEnabled() {
self.locManager.delegate = self
self.locManager.desiredAccuracy = kCLLocationAccuracyNearestTenMeters
self.locManager.startUpdatingLocation()
print("UPDATE UPDATE")
}
if (CLLocationManager.authorizationStatus() == CLAuthorizationStatus.authorizedWhenInUse ||
CLLocationManager.authorizationStatus() == CLAuthorizationStatus.authorizedAlways) {
print("")
}
DELEGATE METHODS
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
//print("**********************")
//print("Long \(manager.location!.coordinate.longitude)")
//print("Lati \(manager.location!.coordinate.latitude)")
//print("Alt \(manager.location!.altitude)")
//print("Speed \(manager.location!.speed)")
//print("Accu \(manager.location!.horizontalAccuracy)")
//print("**********************")
//print(Double((vendorLatitute as NSString).doubleValue))
//print(Double((vendorLongitute as NSString).doubleValue))
/*
// restaurant
self.restaurantLatitude = (dict["deliveryLat"] as! String)
self.restaurantLongitude = (dict["deliveryLong"] as! String)
// driver
self.driverLatitute = (dict["resturentLatitude"] as! String)
self.driverLongitude = (dict["resturentLongitude"] as! String)
*/
let restaurantLatitudeDouble = Double(self.restaurantLatitude)
let restaurantLongitudeDouble = Double(self.restaurantLongitude)
let driverLatitudeDouble = Double("\(manager.location!.coordinate.latitude)") //Double(self.driverLatitute)
let driverLongitudeDouble = Double("\(manager.location!.coordinate.longitude)") // Double(self.driverLongitude)
let coordinate₀ = CLLocation(latitude: restaurantLatitudeDouble!, longitude: restaurantLongitudeDouble!)
let coordinate₁ = CLLocation(latitude: driverLatitudeDouble!, longitude: driverLongitudeDouble!)
/************************************** RESTAURANT LATITUTDE AND LONGITUDE ********************************/
// first location
let sourceLocation = CLLocationCoordinate2D(latitude: restaurantLatitudeDouble!, longitude: restaurantLongitudeDouble!)
/********************************************************************************************************************/
/************************************* DRIVER LATITUTDE AND LINGITUDE ******************************************/
// second location
let destinationLocation = CLLocationCoordinate2D(latitude: driverLatitudeDouble!, longitude: driverLongitudeDouble!)
/********************************************************************************************************************/
//print(sourceLocation)
//print(destinationLocation)
let sourcePin = customPin(pinTitle: "You", pinSubTitle: "", location: sourceLocation)
let destinationPin = customPin(pinTitle: "Driver", pinSubTitle: "", location: destinationLocation)
/***************** REMOVE PREVIUOS ANNOTATION TO GENERATE NEW ANNOTATION *******************************************/
self.mapView.removeAnnotations(self.mapView.annotations)
/********************************************************************************************************************/
self.mapView.addAnnotation(sourcePin)
self.mapView.addAnnotation(destinationPin)
let sourcePlaceMark = MKPlacemark(coordinate: sourceLocation)
let destinationPlaceMark = MKPlacemark(coordinate: destinationLocation)
let directionRequest = MKDirections.Request()
directionRequest.source = MKMapItem(placemark: sourcePlaceMark)
directionRequest.destination = MKMapItem(placemark: destinationPlaceMark)
directionRequest.transportType = .automobile
let directions = MKDirections(request: directionRequest)
directions.calculate { [self] (response, error) in
guard let directionResonse = response else {
if let error = error {
print("we have error getting directions==\(error.localizedDescription)")
}
return
}
/***************** REMOVE PREVIUOS POLYLINE TO GENERATE NEW POLYLINE *******************************/
let overlays = self.mapView.overlays
self.mapView.removeOverlays(overlays)
/************************************************************************************/
/***************** GET DISTANCE BETWEEN TWO CORDINATES *******************************/
let distanceInMeters = coordinate₀.distance(from: coordinate₁)
// print(distanceInMeters as Any)
// remove decimal
let distanceFloat: Double = (distanceInMeters as Any as! Double)
// print(distanceFloat as Any)
// self.lblDistance.text = (String(format: "Distance : %.0f Miles away", distanceFloat/1609.344))
self.lblTotalDistance.text = (String(format: "Distance : %.0f Miles away", distanceFloat/1609.344))
// print(distanceFloat/1609.344)
// print(String(format: "Distance : %.0f Miles away", distanceFloat/1609.344))
let s:String = String(format: "%.0f",distanceFloat/1609.344)
// print(s as Any)
/************************************************************************************/
/***************** GENERATE NEW POLYLINE *******************************/
let route = directionResonse.routes[0]
self.mapView.addOverlay(route.polyline, level: .aboveRoads)
let rect = route.polyline.boundingMapRect
self.mapView.setRegion(MKCoordinateRegion(rect), animated: true)
/************************************************************************************/
}
self.mapView.delegate = self
print("update location after 5 sec")
// self.locManager.stopUpdatingLocation()
// speed = distance / time
}
// line width of poly line
//MARK:- MapKit delegates -
func mapView(_ mapView: MKMapView, rendererFor overlay: MKOverlay) -> MKOverlayRenderer {
let renderer = MKPolylineRenderer(overlay: overlay)
renderer.strokeColor = UIColor.blue
renderer.lineWidth = 4.0
return renderer
}
Im trying to display a route between two annotations.
The annotations and the region work fine but the route won't show up and I have no idea why
It looks like the route is not being rendered at all.
I'm sure that the route exists because I tried to print it and it is in the directionResponse.routes
Any suggestions?
I'm using SwiftUI
Then this is included in a parent view.
import SwiftUI
import MapKit
import FirebaseFirestore
struct MapView: UIViewRepresentable {
var packageLocation: GeoPoint
var destination: GeoPoint
var driverLocation = CLLocationCoordinate2D()
func makeUIView(context: UIViewRepresentableContext<MapView>) -> MKMapView {
MKMapView()
}
func mapView(_ mapView: MKMapView, rendererFor overlay: MKOverlay) -> MKOverlayRenderer {
let renderer = MKPolygonRenderer(overlay: overlay)
renderer.strokeColor = .blue
renderer.lineWidth = 2.0
return renderer
}
func updateUIView(_ uiView: MKMapView, context: UIViewRepresentableContext<MapView>) {
let requestLocation: CLLocationCoordinate2D = CLLocationCoordinate2D(latitude: packageLocation.latitude, longitude: packageLocation.longitude)
let destinationLocation: CLLocationCoordinate2D = CLLocationCoordinate2D(latitude: destination.latitude, longitude: destination.longitude)
//let span = MKCoordinateSpan(latitudeDelta: 1, longitudeDelta: 1)
//let region = MKCoordinateRegion(center: requestLocation, span: span)
//uiView.setRegion(region, animated: true)
let annotation = MKPointAnnotation()
annotation.coordinate = requestLocation
annotation.title = "Package Title"
uiView.addAnnotation(annotation)
let annotation2 = MKPointAnnotation()
annotation2.coordinate = destinationLocation
annotation2.title = "Destiantion"
uiView.addAnnotation(annotation2)
let sourcePlacemark = MKPlacemark(coordinate: requestLocation)
let destinationPlacemark = MKPlacemark(coordinate: destinationLocation)
let directionRequest = MKDirections.Request()
directionRequest.source = MKMapItem(placemark: sourcePlacemark)
directionRequest.destination = MKMapItem(placemark: destinationPlacemark)
directionRequest.transportType = .automobile
let directions = MKDirections(request: directionRequest)
directions.calculate { (response, error) in
guard let directionResponse = response else {
if let error = error {
print(error.localizedDescription)
}
return
}
print(directionResponse)
let route = directionResponse.routes[0]
uiView.addOverlay(route.polyline, level: .aboveRoads)
let rect = route.polyline.boundingMapRect
uiView.setRegion(MKCoordinateRegion(rect), animated: true)
}
}
}
You've almost got it.
The one issue that you need to resolve is the use of the MKMapView delegate functions.
The easiest way to do that is to subclass MKMapView and make your own map view that has conforms to MKMapViewDelegate.
Firstly, create your own map view, subclassing MKMapView and conforming to MKMapViewDelegate. At the moment you're only really using the rendererFor overlay delegate method so I'll just implement that, but you can add other methods if you require them.
class WrappableMapView: MKMapView, MKMapViewDelegate {
func mapView(_ mapView: MKMapView, rendererFor overlay: MKOverlay) -> MKOverlayRenderer {
let renderer = MKPolylineRenderer(overlay: overlay)
renderer.strokeColor = .red
renderer.lineWidth = 4.0
return renderer
}
}
Then you need to update your UIViewRepresentable to use the new WrappableMapView that you just created. I have gone for making a functional example, so here I am passing in the request and destination locations. You can handle this how you want but at least this will give you something that works.
struct MyMapView: UIViewRepresentable {
#Binding var requestLocation: CLLocationCoordinate2D
#Binding var destinationLocation: CLLocationCoordinate2D
private let mapView = WrappableMapView()
func makeUIView(context: UIViewRepresentableContext<MyMapView>) -> WrappableMapView {
mapView.delegate = mapView // make sure we set our delegate to be the mapView we just created
return mapView
}
func updateUIView(_ uiView: WrappableMapView, context: UIViewRepresentableContext<MyMapView>) {
let requestAnnotation = MKPointAnnotation()
requestAnnotation.coordinate = requestLocation
requestAnnotation.title = "Package Title"
uiView.addAnnotation(requestAnnotation)
let destinationAnnotation = MKPointAnnotation()
destinationAnnotation.coordinate = destinationLocation
destinationAnnotation.title = "Destination"
uiView.addAnnotation(destinationAnnotation)
let requestPlacemark = MKPlacemark(coordinate: requestLocation)
let destinationPlacemark = MKPlacemark(coordinate: destinationLocation)
let directionRequest = MKDirections.Request()
directionRequest.source = MKMapItem(placemark: requestPlacemark)
directionRequest.destination = MKMapItem(placemark: destinationPlacemark)
directionRequest.transportType = .automobile
let directions = MKDirections(request: directionRequest)
directions.calculate { response, error in
guard let response = response else { return }
let route = response.routes[0]
uiView.addOverlay(route.polyline, level: .aboveRoads)
let rect = route.polyline.boundingMapRect
uiView.setRegion(MKCoordinateRegion(rect), animated: true)
// if you want insets use this instead of setRegion
// uiView.setVisibleMapRect(rect, edgePadding: .init(top: 50.0, left: 50.0, bottom: 50.0, right: 50.0), animated: true)
}
}
}
Finally we can put it all together with a ContentView that shows it works:
struct ContentView: View {
#State var requestLocation = CLLocationCoordinate2D(latitude: 51.509865, longitude: -0.118092)
#State var destinationLocation = CLLocationCoordinate2D(latitude: 51.501266, longitude: -0.093210)
var body: some View {
MyMapView(requestLocation: $requestLocation, destinationLocation: $destinationLocation)
}
}
This is what it should look like:
One thing to note, using the rendererFor overlay delegate function in the simulator causes an error. This only happens in the simulator and not on device, so don't be surprised if you see an error message like this in the console.
2019-11-08 18:50:30.034066+0000 StackOverflow[80354:9526181] Compiler error: Invalid library file
I want draw route between two coordinates in swift4.
and I am using this code,
import UIKit
import MapKit
class ViewController: UIViewController, MKMapViewDelegate {
#IBOutlet weak var myMap: MKMapView!
var myRoute : MKRoute!
override func viewDidLoad() {
super.viewDidLoad()
let point1 = MKPointAnnotation()
let point2 = MKPointAnnotation()
point1.coordinate = CLLocationCoordinate2DMake(25.0305, 121.5360)
point1.title = "Taipei"
point1.subtitle = "Taiwan"
myMap.addAnnotation(point1)
point2.coordinate = CLLocationCoordinate2DMake(24.9511, 121.2358)
point2.title = "Chungli"
point2.subtitle = "Taiwan"
myMap.addAnnotation(point2)
myMap.centerCoordinate = point2.coordinate
myMap.delegate = self
//Span of the map
myMap.setRegion(MKCoordinateRegionMake(point2.coordinate, MKCoordinateSpanMake(0.7,0.7)), animated: true)
let directionsRequest = MKDirectionsRequest()
let markTaipei = MKPlacemark(coordinate: CLLocationCoordinate2DMake(point1.coordinate.latitude, point1.coordinate.longitude), addressDictionary: nil)
let markChungli = MKPlacemark(coordinate: CLLocationCoordinate2DMake(point2.coordinate.latitude, point2.coordinate.longitude), addressDictionary: nil)
directionsRequest.source = MKMapItem(placemark: markChungli)
directionsRequest.destination = MKMapItem(placemark: markTaipei)
directionsRequest.transportType = MKDirectionsTransportType.automobile
let directions = MKDirections(request: directionsRequest)
directions.calculate(completionHandler: {
response, error in
if error == nil {
self.myRoute = response!.routes[0] as MKRoute
self.myMap.add(self.myRoute.polyline)
}
})
}
func mapView(_ mapView: MKMapView, rendererFor overlay: MKOverlay) ->MKOverlayRenderer {
let myLineRenderer = MKPolylineRenderer(polyline: myRoute.polyline)
myLineRenderer.strokeColor = UIColor.red
myLineRenderer.lineWidth = 3
return myLineRenderer
}
}
and this code give me right answer
But when I change coordinates then it not show route.
new coordinates are
point1 = 26.9124, 75.7873
point2 = 26.9124, 76.7873
Looks like Apple Maps doesn't yet support India. (quora.com/…) I guess if this is a critical part of your app, you may have to consider Google Maps
Those new coordinates are in India, and it just looks like directions are not available there. I get an error that says "Error Domain=MKErrorDomain Code=4 "Directions Not Available" UserInfo={NSLocalizedDescription=Directions Not Available, MKErrorGEOError=-8, MKErrorGEOErrorUserInfo={ }, MKErrorGEOTransitIncidentKey=<_GEOTransitRoutingIncidentMessage: 0x60800023df20>, MKDirectionsErrorCode=0, NSLocalizedFailureReason=Directions are not available between these locations.}"
Thanx Rob for this answar.
I'm creating a sort of direction/GPS app and so far everything has been sort of easy.
I've figured out how to find the user's location (with their permission of course)
I've managed to allow them to set a destination in a quick easy way
However, I've run into a small issue. What I want is for the user to select their destination on the screen and the app will give them the fastest way to arrive there.
Here's my ViewController:
class ViewController: UIViewController,MKMapViewDelegate,CLLocationManagerDelegate {
#IBOutlet var mapOfMaps: MKMapView!
let locationManager = CLLocationManager()
var center:CLLocationCoordinate2D!
var SourcePM:MKPlacemark!
let sourcePlacemark: MKPlacemark! = nil
override func viewDidLoad() {
super.viewDidLoad()
self.locationManager.delegate = self
self.locationManager.desiredAccuracy = kCLLocationAccuracyBest
self.locationManager.requestWhenInUseAuthorization()
self.locationManager.startUpdatingLocation()
self.mapOfMaps.showsUserLocation = true
let sourceAnnotation = MKPointAnnotation()
if let location = locationManager.location {
sourceAnnotation.coordinate = location.coordinate
}
let longPress = UILongPressGestureRecognizer(target: self, action: #selector(CardioViewController.action(_:)))
longPress.minimumPressDuration = 1.0
mapOfMaps.addGestureRecognizer(longPress)
//directionRequest
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
let location = locations.last
center = CLLocationCoordinate2D(latitude: location!.coordinate.latitude, longitude: location!.coordinate.longitude)
let region = MKCoordinateRegion(center: center, span: MKCoordinateSpan(latitudeDelta: 0.003, longitudeDelta: 0.003))
self.mapOfMaps.setRegion(region, animated: true)
self.locationManager.stopUpdatingLocation()
SourcePM = MKPlacemark(coordinate: center, addressDictionary: nil)
}
func locationManager(manager: CLLocationManager, didFailWithError error: NSError) {
print("ERROr " + error.localizedDescription)
}
func action(gestureRecognizer:UIGestureRecognizer) {
let touchPoint = gestureRecognizer.locationInView(self.mapOfMaps)
let newCoord:CLLocationCoordinate2D = mapOfMaps.convertPoint(touchPoint, toCoordinateFromView: self.mapOfMaps)
let newAnotation = MKPointAnnotation()
newAnotation.coordinate = newCoord
newAnotation.title = "Your Destination"
mapOfMaps.addAnnotation(newAnotation)
let anotPM = MKPlacemark(coordinate: newAnotation.coordinate, addressDictionary: nil)
let source = MKMapItem(placemark: SourcePM)
let dstn = MKMapItem(placemark: anotPM)
let directionRequest = MKDirectionsRequest()
directionRequest.source = source
directionRequest.destination = dstn
directionRequest.transportType = .Automobile
// Calculate the direction
let directions = MKDirections(request: directionRequest)
// 8.
directions.calculateDirectionsWithCompletionHandler() {
(response, error) in
if(error == nil && response != nil) {
for route in response!.routes {
var r: MKRoute = route as! MKRoute
self.mapOfMaps.addOverlay(r.polyline, level: MKOverlayLevel.AboveRoads)
}
}
let route = response!.routes[0]
self.mapOfMaps.addOverlay((route.polyline), level: MKOverlayLevel.AboveLabels)
let rect = route.polyline.boundingMapRect
self.mapOfMaps.setRegion(MKCoordinateRegionForMapRect(rect), animated: true)
}
}
func mapView(mapView: MKMapView, rendererForOverlay overlay: MKOverlay) -> MKOverlayRenderer {
let renderer = MKPolylineRenderer(overlay: overlay)
renderer.strokeColor = UIColor.orangeColor()
renderer.alpha = 1
renderer.lineWidth = 4.0
return renderer
}
}
to help walk you through my code. My user will press and hold the destination on the map and the app will add an annotation and it should give the route. However, all that happens is the annotation will be added to the map, and the map will adjust to show both locations(user's location and annotation location) but no route.
This may not be the 'ideal' solution, but it's worth noting that both locationManager functions can't work at the same time. I tried commenting one of the locationManager functions out and low and behold the other worked perfectly
I have created route with multiple annotations.
I want to display text between annotations which exactly as attached screen shot.
Can any one help please?
Thanks
I tried something which will show the distance between two annotation but not when you tap on the MKPolylineOverlay. One more important thing I am not maintaining any standards.
Here is my controller structure.
import UIKit
import MapKit
class RouteViewController: UIViewController, MKMapViewDelegate {
#IBOutlet weak var mapView: MKMapView!
//Rest of the code see below
}
First of all I'll add some annotation to map in the viewDidLoad delegate method as below.
override func viewDidLoad() {
super.viewDidLoad()
self.mapView.delegate = self
let annotation1 = MKPointAnnotation()
annotation1.title = "Times Square"
annotation1.coordinate = CLLocationCoordinate2D(latitude: 40.759011, longitude: -73.984472)
let annotation2 = MKPointAnnotation()
annotation2.title = "Empire State Building"
annotation2.coordinate = CLLocationCoordinate2D(latitude: 40.748441, longitude: -73.985564)
let annotation3 = MKPointAnnotation()
annotation3.title = "Some Point"
annotation3.coordinate = CLLocationCoordinate2D(latitude: 40.7484, longitude: -73.97)
let arrayOfPoints = [ annotation1, annotation2, annotation3]
self.mapView.addAnnotations(arrayOfPoints)
self.mapView.centerCoordinate = annotation2.coordinate
for (index, annotation) in arrayOfPoints.enumerate() {
if index < (arrayOfPoints.count-1) {
//I am taking the two consecutive annotation and performing the routing operation.
self.directionHandlerMethod(annotation.coordinate, ePoint: arrayOfPoints[index+1].coordinate)
}
}
}
In the directionHandlerMethod, I am performing the actual request for direction as below,
func directionHandlerMethod(sPoint: CLLocationCoordinate2D, ePoint: CLLocationCoordinate2D) {
let sourcePlacemark = MKPlacemark(coordinate: sPoint, addressDictionary: nil)
let destinationPlacemark = MKPlacemark(coordinate: ePoint, addressDictionary: nil)
let sourceMapItem = MKMapItem(placemark: sourcePlacemark)
let destinationMapItem = MKMapItem(placemark: destinationPlacemark)
let directionRequest = MKDirectionsRequest()
directionRequest.source = sourceMapItem
directionRequest.destination = destinationMapItem
directionRequest.transportType = .Automobile
let directions = MKDirections(request: directionRequest)
directions.calculateDirectionsWithCompletionHandler {
(response, error) -> Void in
guard let response = response else {
if let error = error {
print("Error: \(error)")
}
return
}
//I am assuming that it will contain one and only one result so I am taking that one passing to addRoute method
self.addRoute(response.routes[0])
}
}
Next I am adding the polyline route on map in the addRoute method as below,
func addRoute(route: MKRoute) {
let polyline = route.polyline
//Here I am taking the centre point on the polyline and placing an annotation by giving the title as 'Route' and the distance in the subtitle
let annoatation = MKPointAnnotation()
annoatation.coordinate = MKCoordinateForMapPoint(polyline.points()[polyline.pointCount/2])
annoatation.title = "Route"
let timeInMinute = route.expectedTravelTime / 60
let distanceString = String.localizedStringWithFormat("%.2f %#", timeInMinute, timeInMinute>1 ? "minutes" : "minute")
annoatation.subtitle = distanceString
self.mapView.addAnnotation(annoatation)
self.mapView.addOverlay(polyline)
}
Next I am implementing the rendererForOverlay delegate method as below,
func mapView(mapView: MKMapView, rendererForOverlay overlay: MKOverlay) -> MKOverlayRenderer {
let renderer = MKPolylineRenderer(overlay: overlay)
renderer.strokeColor = UIColor.blueColor()
renderer.lineWidth = 2
renderer.lineCap = .Butt
renderer.lineJoin = .Round
return renderer
}
Next one is the important one delegate method which is viewForAnnotation. Here I am doing some things like placing the label instead of the annotation as below,
func mapView(mapView: MKMapView, viewForAnnotation annotation: MKAnnotation) -> MKAnnotationView? {
if annotation.title != nil && annotation.title!! == "Route" {
let label = UILabel()
label.adjustsFontSizeToFitWidth = true
label.backgroundColor = UIColor.whiteColor()
label.minimumScaleFactor = 0.5
label.frame = CGRect(x: 0, y: 0, width: 100, height: 30)
label.text = annotation.subtitle ?? ""
let view = MKAnnotationView()
view.addSubview(label)
return view
}
return nil
}