Pass longitude and latitude from CLLocationManager to URL? - ios

Question

i'm trying to pass my latitude and longitude to my url params but is returning Nil, but when i print within the delegate it returns the longitude and latitude and i can't seem to find the issue, i've tried many different ways and nothing seems to work
this are the variable where i store my latitude and longitude
var lat: Double!
var long: Double!
this is my delegate
func locationManager(_ manager:CLLocationManager, didUpdateLocations locations: [CLLocation]){
currentLocation = manager.location!.coordinate
let locValue:CLLocationCoordinate2D = currentLocation!
self.long = locValue.longitude
self.lat = locValue.latitude
print(lat)
print(long)
}
and here pass them to variables i'm using in my URL parameters but they return nil and i don't understand why
let userLat = String(describing: lat)
let userLong = String(describing: long)
Thank You

Answer 1

Try something like:
Swift 3
func locationManager(_ manager:CLLocationManager, didUpdateLocations locations: [CLLocation]){
if let last = locations.last {
sendLocation(last.coordinate)
}
}
func sendLocation(_ coordinate: CLLocationCoordinate2D) {
let userLat = NSString(format: "%f", coordinate.latitude) as String
let userLong = NSString(format: "%f", coordinate.longitude) as String
// Run API Call....
}

Answer 2

I think the Joseph K's answer is not correct. It rounds off the values of the latitude and longitude. It will be something like the code below.
let coordinate = CLLocationCoordinate2D(latitude: CLLocationDegrees(exactly: 35.6535425)!, longitude: CLLocationDegrees(exactly: 139.7047917)!)
let latitude = coordinate.latitude // 35.6535425
let longitude = coordinate.longitude // 139.7047917
let latitudeString = NSString(format: "%f", latitude) as String // "35.653543"
let longitudeString = NSString(format: "%f", longitude) as String // "139.704792"
So the correct and simpler code is:
Swift 3
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
guard let coordinate = locations.last?.coordinate else { return }
let latitude = "\(coordinate.latitude)"
let longitude = "\(coordinate.longitude)"
// Do whatever you want to make a URL.
}