[Xcode/Swift]逆GEOコードでのエラーで困っています

Question

Xcode初心者です。緯度・経度から住所を得たく、こちらのサイトをそのままコピペしました。

そうしたところ、サイト情報との環境違い(Version 8.3.3)か、いくつかエラーが出ました。エラーは赤の中に白玉があったので、XcodeのFIXに従って次の通り修正しています。

import UIKit
import MapKit

class ViewController: UIViewController {
    
    override func viewDidLoad() {
        super.viewDidLoad()
        ViewController.invoke()
    }
    
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
    }
    
    private static func invoke() {
        
        let locations = [
            ["0,0", "0", "0"],
            ["35,135", "35", "135"],
            ["名古屋駅", "35.1707", "136.8826"],
            ["名古屋城", "35.1856", "136.8991"],
            ["木曽川", "35.2564", "136.6913"],
            ["琵琶湖", "35.2676", "136.0937"],
            ["インド洋", "-22.3918", "80.0957"],
            ["スペリオル湖", "47.8247", "-87.3552"],
            ["エッフェル塔", "48.858244", "2.294598"],
            ]
        
        for location in locations {
            let latlon = CLLocation(latitude: Double(location[1])!, longitude: Double(location[2])!)
            reverseGeocode(name: location[0], location: latlon, completion: printLocation)
        }
    }
    
    private static func reverseGeocode(name: String, location: CLLocation, completion:@escaping (_ name: String, _ location: CLLocation, _ placemarks: [CLPlacemark]?, _ error: NSError?) -> Void) {
        
        let geocorder = CLGeocoder()
        
        geocorder.reverseGeocodeLocation(location, completionHandler: { (placemarks, error) -> Void in
                completion(name, location, placemarks, (error! as NSError))
        })
        
    }
    
    private static func printLocation(name: String, location: CLLocation, placemarks: [CLPlacemark]?, error: NSError?) {
        
        print("**********************************************************************")
        print("[\(name)]")
        print("latitude: \(location.coordinate.latitude)")
        print("longitude: \(location.coordinate.longitude)")
        
        if let ps = placemarks {
            print("CLPlacemarks.count: \(ps.count)")
            for p in ps {
                print("CLPlacemark: [")
                // The location object containing latitude and longitude information.
                if p.location != nil {
                    print("  location: \(p.location!)")
                }
                // The name of the placemark.
                if p.name != nil {
                    print("  name: \(p.name!)")
                }
                // A dictionary containing the Address Book keys and values for the placemark.
                if let ad = p.addressDictionary {
                    print("  addressDictionary: [")
                    for k in ad.keys {
                        if let v = ad[k] {
                            print("    \(k): \(v) (\(type(of: v)))")
                            if let array = v as? NSMutableArray {
                                print("    [")
                                for elem in array {
                                    print("      \(elem)")
                                }
                                print("    ]")
                            }
                        }
                    }
                    print("  ]")
                }
                // The abbreviated country name.
                if p.isoCountryCode != nil {
                    print("  ISOcountryCode: \(p.isoCountryCode!)")
                }
                // The name of the country associated with the placemark.
                if p.country != nil {
                    print("  country: \(p.country!)")
                }
                // The postal code associated with the placemark.
                if p.postalCode != nil {
                    print("  postalCode: \(p.postalCode!)")
                }
                // The state or province associated with the placemark.
                if p.administrativeArea != nil {
                    print("  administrativeArea: \(p.administrativeArea!)")
                }
                // Additional administrative area information for the placemark.
                if p.subAdministrativeArea != nil {
                    print("  subAdministrativeArea: \(p.subAdministrativeArea!)")
                }
                // The city associated with the placemark.
                if p.locality != nil {
                    print("  locality: \(p.locality!)")
                }
                // Additional city-level information for the placemark.
                if p.subLocality != nil {
                    print("  subLocality: \(p.subLocality!)")
                }
                // The street address associated with the placemark.
                if p.thoroughfare != nil {
                    print("  thoroughfare: \(p.thoroughfare!)")
                }
                // Additional street-level information for the placemark.
                if p.subThoroughfare != nil {
                    print("  subThoroughfare: \(p.subThoroughfare!)")
                }
                // The geographic region associated with the placemark.
                if p.region != nil {
                    print("  region: \(p.region!)")
                }
                // The time zone associated with the placemark.
                if p.timeZone != nil {
                    print("  timeZone: \(p.timeZone!)")
                }
                // The name of the inland water body associated with the placemark.
                if p.inlandWater != nil {
                    print("  inlandWater: \(p.inlandWater!)")
                }
                // The name of the ocean associated with the placemark.
                if p.ocean != nil {
                    print("  ocean: \(p.ocean!)")
                }
                // The relevant areas of interest associated with the placemark.
                if p.areasOfInterest != nil {
                    print("  areasOfInterest: \(p.areasOfInterest!)")
                }
                print("]")
            }
        }
        
        if let e = error {
            print("Error: \(e)")
        }
    }
}

そのまま実行したところ、次のところでエラーが出ております。

EXE_BAD...を頼りに、色々と調べ、またerrorにNILが入っているのではないかなど疑ったのですが、どうにも先に進めなくなっております。

どなた様かご教授賜りたく質問させていただく次第です。よろしくお願いいたします。

Comments

[fromageblanc]

NSError を Error に変えるとどうなります？

[cafe_takai]

NSErrorをErrorに変えましたところ、実行はできるのですが、エラーとしては投稿させていただいたものと同様のようです。当初、Error Domain=kCLErrorDomain Code=2 "(null)"となっていたのですが、無線LANが切れていることに気づかず、投稿していしまいました。2つ目の投稿は無視していただければと思っております。

[cafe_takai]

本内容につきましては修正させていただきました。失礼いたしました。

Answer 1

NSErrorの箇所をErrorにして、余計なキャストをやめると、私の環境では動きました。
Xcode 8.0 / Swift3.x

import UIKit
import MapKit

class ViewController: UIViewController {
    
    override func viewDidLoad() {
        super.viewDidLoad()
        ViewController.invoke()
    }
    
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
    }
    
    private static func invoke() {
        
        let locations = [
            ["0,0", "0", "0"],
            ["35,135", "35", "135"],
            ["名古屋駅", "35.1707", "136.8826"],
            ["名古屋城", "35.1856", "136.8991"],
            ["木曽川", "35.2564", "136.6913"],
            ["琵琶湖", "35.2676", "136.0937"],
            ["インド洋", "-22.3918", "80.0957"],
            ["スペリオル湖", "47.8247", "-87.3552"],
            ["エッフェル塔", "48.858244", "2.294598"],
            ]
        
        for location in locations {
            let latlon = CLLocation(latitude: Double(location[1])!, longitude: Double(location[2])!)
            reverseGeocode(name: location[0], location: latlon, completion: printLocation)
        }
    }
    
    private static func reverseGeocode(name: String, location: CLLocation, completion:@escaping (_ name: String, _ location: CLLocation, _ placemarks: [CLPlacemark]?, _ error: Error?) -> Void) {
        
        let geocorder = CLGeocoder()
        
        geocorder.reverseGeocodeLocation(location, completionHandler: { (placemarks, error) -> Void in
            completion(name, location, placemarks, (error))
        })
        
    }
    
    private static func printLocation(name: String, location: CLLocation, placemarks: [CLPlacemark]?, error: Error?) {
        
        print("**********************************************************************")
        print("[\(name)]")
        print("latitude: \(location.coordinate.latitude)")
        print("longitude: \(location.coordinate.longitude)")
        
        if let ps = placemarks {
            print("CLPlacemarks.count: \(ps.count)")
            for p in ps {
                print("CLPlacemark: [")
                // The location object containing latitude and longitude information.
                if p.location != nil {
                    print("  location: \(p.location!)")
                }
                // The name of the placemark.
                if p.name != nil {
                    print("  name: \(p.name!)")
                }
                // A dictionary containing the Address Book keys and values for the placemark.
                if let ad = p.addressDictionary {
                    print("  addressDictionary: [")
                    for k in ad.keys {
                        if let v = ad[k] {
                            print("    \(k): \(v) (\(type(of: v)))")
                            if let array = v as? NSMutableArray {
                                print("    [")
                                for elem in array {
                                    print("      \(elem)")
                                }
                                print("    ]")
                            }
                        }
                    }
                    print("  ]")
                }
                // The abbreviated country name.
                if p.isoCountryCode != nil {
                    print("  ISOcountryCode: \(p.isoCountryCode!)")
                }
                // The name of the country associated with the placemark.
                if p.country != nil {
                    print("  country: \(p.country!)")
                }
                // The postal code associated with the placemark.
                if p.postalCode != nil {
                    print("  postalCode: \(p.postalCode!)")
                }
                // The state or province associated with the placemark.
                if p.administrativeArea != nil {
                    print("  administrativeArea: \(p.administrativeArea!)")
                }
                // Additional administrative area information for the placemark.
                if p.subAdministrativeArea != nil {
                    print("  subAdministrativeArea: \(p.subAdministrativeArea!)")
                }
                // The city associated with the placemark.
                if p.locality != nil {
                    print("  locality: \(p.locality!)")
                }
                // Additional city-level information for the placemark.
                if p.subLocality != nil {
                    print("  subLocality: \(p.subLocality!)")
                }
                // The street address associated with the placemark.
                if p.thoroughfare != nil {
                    print("  thoroughfare: \(p.thoroughfare!)")
                }
                // Additional street-level information for the placemark.
                if p.subThoroughfare != nil {
                    print("  subThoroughfare: \(p.subThoroughfare!)")
                }
                // The geographic region associated with the placemark.
                if p.region != nil {
                    print("  region: \(p.region!)")
                }
                // The time zone associated with the placemark.
                if p.timeZone != nil {
                    print("  timeZone: \(p.timeZone!)")
                }
                // The name of the inland water body associated with the placemark.
                if p.inlandWater != nil {
                    print("  inlandWater: \(p.inlandWater!)")
                }
                // The name of the ocean associated with the placemark.
                if p.ocean != nil {
                    print("  ocean: \(p.ocean!)")
                }
                // The relevant areas of interest associated with the placemark.
                if p.areasOfInterest != nil {
                    print("  areasOfInterest: \(p.areasOfInterest!)")
                }
                print("]")
            }
        }
        
        if let e = error {
            print("Error: \(e)")
        }
    }
}

Comments

[cafe_takai]

早速のご回答、ありがとうございます。
私の環境でも上手くいきました！
NSError/Errorとキャストの件、勉強させていただきます<(_ _)>。