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

func convertLatLongToAddress(latitude:Double, longitude:Double) {
    let geoCoder = CLGeocoder()
    let location = CLLocation(latitude: latitude, longitude: longitude)
    var labelText = ""
    geoCoder.reverseGeocodeLocation(location, completionHandler: { (placemarks, error) -> Void in

        var placeMark: CLPlacemark!
        placeMark = placemarks?[0]

        if placeMark != nil {
            if let name = placeMark.name {
                labelText = name
            }
            if let subThoroughfare = placeMark.subThoroughfare {
                if (subThoroughfare != placeMark.name) && (labelText != subThoroughfare) {
                    labelText = (labelText != "") ? labelText + "," + subThoroughfare : subThoroughfare
                }
            }
            if let subLocality = placeMark.subLocality {
                if (subLocality != placeMark.subThoroughfare) && (labelText != subLocality) {
                    labelText = (labelText != "") ? labelText + "," + subLocality : subLocality
                }
            }
            if let street = placeMark.thoroughfare {
                if (street != placeMark.subLocality) && (labelText != street) {
                    labelText = (labelText != "") ? labelText + "," + street : street
                }
            }
            if let locality = placeMark.locality {
                if (locality != placeMark.thoroughfare) && (labelText != locality) {
                    labelText = (labelText != "") ? labelText + "," + locality : locality
                }
            }
            if let city = placeMark.subAdministrativeArea {
                if (city != placeMark.locality) && (labelText != city) {
                    labelText = (labelText != "") ? labelText + "," + city : city
                }
            }
            if let state = placeMark.postalAddress?.state {
                if (state != placeMark.subAdministrativeArea) && (labelText != state) {
                    labelText = (labelText != "") ? labelText + "," + state : state
                }

            }
            if let country = placeMark.country {
                labelText = (labelText != "") ? labelText + "," + country : country
            }
            // labelText gives you the address of the place
        }
    })
}

Here as an improvement I added place name as well. It makes address more meaningful.