How can I change the color of an MGLPolyline? I had looked here but the answer did not work. I also tried some other code but it was too dependant on apple maps. So how can I change the color of the line and preferably be able to edit other aspects of the line as well? Bellow is where I believe in the code I should be doing these edits but I am not 100%.
@objc func useButtonTap(_ sender: UIGestureRecognizer) {
print("use tap button pressed")
startButton.backgroundColor = UIColor(red: 1.0, green: 1.0, blue: 1.0, alpha: 0.9)
useTrackButton.backgroundColor = UIColor(red: 1.0, green: 1.0, blue: 1.0, alpha: 0.9)
locationManager?.stopUpdatingLocation()
print(locationList, "<-- location manager array in use button")
if locationList == [] {
print("nothing was tracked")
} else {
var mapCoordinates: [CLLocationCoordinate2D] = []
for locationT in locationList {
print(locationT, "<-- locationT")
print(locationT.coordinate.latitude, "<-- latitude")
print(locationT.coordinate.longitude, "<-- longitude")
let locationLatitude = locationT.coordinate.latitude
let locationLongitude = locationT.coordinate.longitude
print(locationLatitude, "lat")
print(locationLongitude, " long")
let newCoord = CLLocationCoordinate2D(latitude: locationLatitude, longitude: locationLongitude) // - (0.0001/2)
print(newCoord, "<-- new coord")
mapCoordinates.append(newCoord)//+ 0.0001
}
polyline = MGLPolyline(coordinates: mapCoordinates, count: UInt(mapCoordinates.count))
// toCome = polyline
// mapView.add(polyline)
mapView.addAnnotation(polyline) //used to be jsut .add, changed in order to try anwser for color chaning of polyline
}
}
You have to make mapView.delegate = self
Then implement this method:
func mapView(_ mapView: MGLMapView, strokeColorForShapeAnnotation annotation: MGLShape) -> UIColor {
return .blue
}