Swift - Generate an Address Format from Reverse Geocoding

Question

I am trying to generate a Formatted Full address using CLGeocoder in Swift 3. I referred to this SO thread to get the code given below.

However, sometimes the app crashe

Answer 1

I create my own static class for Geocoding and get attributes of CLPlacemark and obtain a complete address, like "usually" returns Google:

import Foundation
import CoreLocation

class ReverseGeocoding {

    static func geocode(latitude: Double, longitude: Double, completion: @escaping (CLPlacemark?, _ completeAddress: String?, Error?) -> ())  {
        CLGeocoder().reverseGeocodeLocation(CLLocation(latitude: latitude, longitude: longitude)) { placemarks, error in
            guard let placemark = placemarks?.first, error == nil else {
                completion(nil, nil, error)
                return
            }

            let completeAddress = getCompleteAddress(placemarks)

            completion(placemark, completeAddress, nil)
        }
    }

    static private func getCompleteAddress(_ placemarks: [CLPlacemark]?) -> String {
        guard let placemarks = placemarks else {
            return ""
        }

        let place = placemarks as [CLPlacemark]
        if place.count > 0 {
            let place = placemarks[0]
            var addressString : String = ""
            if place.thoroughfare != nil {
                addressString = addressString + place.thoroughfare! + ", "
            }
            if place.subThoroughfare != nil {
                addressString = addressString + place.subThoroughfare! + ", "
            }
            if place.locality != nil {
                addressString = addressString + place.locality! + ", "
            }
            if place.postalCode != nil {
                addressString = addressString + place.postalCode! + ", "
            }
            if place.subAdministrativeArea != nil {
                addressString = addressString + place.subAdministrativeArea! + ", "
            }
            if place.country != nil {
                addressString = addressString + place.country!
            } 

            return addressString
        }
        return ""
    }
}

Then the implementation:

    ReverseGeocoding.geocode(coordinate: coordinate, completion: { (placeMark, completeAddress, error) in

        if let placeMark = placeMark, let completeAddress = completeAddress {
            print(placeMark.postalCode)
            print(placeMark)
            print(completeAddress)
        } else {
            // do something with the error
        }

Finaly the print:

15172
Calle del Arenal, 4, Calle del Arenal, 4, 15172 Oleiros, A Coruña, España @ <+43.33190337,-8.37144380> +/- 100.00m, region CLCircularRegion (identifier:'<+43.33190337,-8.37144380> radius 70.84', center:<+43.33190337,-8.37144380>, radius:70.84m)
Calle del Arenal, 4, Oleiros, 15172, A Coruña, España