ios - "Cannot find an initializer for type ' MKPlaceMark' 接受类型的参数列表

Question

这段代码有两个错误:

"Cannot find an initializer for type 'MKPlacemark' that accepts an argument list of type '(coordinate: CLLocationCoordinate2D, addressDictionary: [NSString : String])'

和

"Cannot invoke 'geocodeAddressstring' with an argument list of type '(String, completionHandler: ([AnyObject?]!, NSError?) -> _)'

我曾尝试在这里和那里放置可选值，因为读到它可能会解决问题，但没有奏效。

我应该如何更改我的代码以修复这些错误并使我的 ViewController 正常工作？

import UIKit
import CoreLocation
import AddressBook
import Contacts
import MapKit

class ViewController: UIViewController {

    @IBOutlet weak var address: UITextField!
    @IBOutlet weak var city: UITextField!
    @IBOutlet weak var province: UITextField!
    @IBOutlet weak var zip: UITextField!

    var coords: CLLocationCoordinate2D?

    @IBAction func getDirections(sender: UIButton) {

        let geoCoder = CLGeocoder()

        let addressString = "\(address.text) \(city.text) \(province.text) \(zip.text)"

        geoCoder.geocodeAddressString(addressString, completionHandler: {(placemarks: [AnyObject?]!, error: NSError?) in

            if error != nil {

                print("Geocode failed with error: \(error?.localizedDescription)")

            } else if placemarks?.count > 0 {

                let placemark = placemarks[0] as! CLPlacemark
                let location = placemark.location
                self.coords = location.coordinate

                self.showMap()
            }
        })
    }


    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }


    func showMap() {
        let addressDict =[kABPersonAddressStreetKey as NSString: address.text!,
            kABPersonAddressCityKey: city.text!,
            kABPersonAddressStateKey: province.text!,
            kABPersonAddressZIPKey: zip.text! ]

        let place = MKPlacemark(coordinate: coords!, addressDictionary: addressDict)
        let mapItem = MKMapItem(placemark: place)
        let options = [MKLaunchOptionsDirectionsModeDriving]

        mapItem.openInMapsWithLaunchOptions(options)
    }
}

Answer 1

你升级到swift 2.0了吗？

Swift 1.2 及之前

geoCoder.geocodeAddressString(addressString, completionHandler: {(placemarks: [AnyObject?]!, error: NSError?) in

swift 2.0

geocoder.geocodeAddressString(addressString, completionHandler: {(placemarks: [CLPlacemark]?, error: NSError?) -> Void in

还有变化

let placemark = placemarks[0] as! CLPlacemark

到

let placemark = placemarks[0]