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[英]Swift 2.0 - Cannot Subscript a value of type '[CLPlacemark]?'
[英]reverseGeocodeLocation: “Cannot invoke initializer for type 'CLPlacemark' with an argument list of type '(placemark: CLPlacemark)'”
我對如何在reverseGeocodeLocation嘗試中初始化此地標感到困惑。
首先,我不知道reverseGeocodeLocation是否正確初始化。 它給了我一些問題; 但是Xcode在這一點上似乎還可以。
真正的問題出在第55行:placemark = CLPlacemark(placemark:placemarkArr [0] as!CLPlacemark)
我收到錯誤:“無法使用類型為“(地標:CLPlacemark)”的參數列表來為類型“ CLPlacemark”調用初始化程序”
我正在使用Xcode 7 Beta 4; 所以我不知道這可能是問題。 我已經看到了有關如何編寫此代碼行的較舊的示例,但它們似乎都是較早的代碼版本。
感謝您的幫助或建議! 這個人困擾了我一段時間。
import UIKit
import CoreLocation
class ViewController: UIViewController, CLLocationManagerDelegate{
var manager:CLLocationManager?
@IBOutlet weak var latitude: UILabel!
@IBOutlet weak var longitude: UILabel!
@IBOutlet weak var altitude: UILabel!
@IBOutlet weak var course: UILabel!
@IBOutlet weak var speed: UILabel!
@IBOutlet weak var address: UILabel!
override func viewDidLoad() {
super.viewDidLoad()
manager = CLLocationManager()
manager!.delegate = self
manager!.desiredAccuracy - kCLLocationAccuracyBest
manager!.requestWhenInUseAuthorization()
manager!.startUpdatingLocation()
}
func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
print(locations)
let userLocation:CLLocation = locations[0]
self.latitude.text = "\(userLocation.coordinate.latitude)"
self.longitude.text = "\(userLocation.coordinate.longitude)"
self.course.text = "\(userLocation.course)"
self.speed.text = "\(userLocation.speed)"
self.altitude.text = "\(userLocation.altitude)"
let geocoder = CLGeocoder()
geocoder.reverseGeocodeLocation(userLocation) { (placemarkArr, error) -> Void in
var placemark:CLPlacemark!
//let gp = userLocation
if error == nil && placemarkArr!.count > 0 {
print(userLocation)
placemark = CLPlacemark(placemark: placemarkArr[0] as! CLPlacemark)
var addressString: String = ""
if placemark.ISOcountryCode == "TW" {
if placemark.country != nil {
addressString = placemark.country!
}
if placemark.subAdministrativeArea != nil {
addressString = addressString + placemark.subAdministrativeArea! + ", "
}
if placemark.postalCode != nil {
addressString = addressString + placemark.postalCode! + " "
}
if placemark.locality != nil {
addressString = addressString + placemark.locality!
}
}
}
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
我不再遇到這個問題。 我的代碼可能與上面的代碼略有不同,因此我在代碼的下面粘貼了以下內容,以初始化reverseGeocodeLocation:
import UIKit
import CoreLocation
class ViewController: UIViewController, CLLocationManagerDelegate{
let locationManager = CLLocationManager()
var longitude: Double!
var latitude: Double!
var thoroughfare = "unknown"
var subLocality = "unknown"
var subAdministrativeArea = "unknown"
var postCode = "unknown"
var locality = "unknown"
override func viewDidLoad() {
super.viewDidLoad()
self.locationManager.requestAlwaysAuthorization()
self.locationManager.requestWhenInUseAuthorization()
if CLLocationManager.locationServicesEnabled() {
locationManager.delegate = self
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.startUpdatingLocation()
}
}
func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
latitude = userLocation.coordinate.latitude
longitude = userLocation.coordinate.longitude
let userLocation:CLLocation = locations[0]
CLGeocoder().reverseGeocodeLocation(userLocation) { (placemarks, error) -> Void in
if(error == nil) {
let loc = placemarks![0]
self.thoroughfare = String!(loc.thoroughfare)
self.subLocality = String!(loc.subLocality)
self.subAdministrativeArea = String!(loc.subAdministrativeArea)
self.postCode = String!(loc.postalCode)
self.locality = String!(loc.locality)
} else {
//print(error)
}
print("thoroughfare: " + self.thoroughfare)
}
}
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