ios - 是什么导致错误 "cannot convert value of type ' CLLocation.Type' 到预期参数类型 'CLLocation'“

Question

我正在尝试将位置检测添加到应用程序中，并且我已经弄明白了大部分内容。但是我在使用 reverseGeocodeLocation 方法时遇到了问题。我收到错误 cannot convert value of type 'CLLocation.Type' to expected argument type 'CLLocation'。什么会导致这个？这是我的代码:

func loadLocation() {
    self.locationManager = CLLocationManager()
    self.locationManager.delegate = self
    self.locationManager.desiredAccuracy = 2000
    self.locationManager.startUpdatingLocation()
}

func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {

    self.locationManager.stopUpdatingLocation()
    var location = locations.first
    var geoCoder: CLGeocoder!

    geoCoder.reverseGeocodeLocation(location: CLLocation) { (placemarks: [CLPlacemark]?, error: NSError?) -> Void in
                                                    ^ Error Here
        var placemark: CLPlacemark = placemarks?.first
        self.location = placemark.locality
        self.location = placemark.administrativeArea
    }
}

locationManager 和 location 在 viewDidLoad 之上调用:

var locationManager: CLLocationManager!
var location: String!

override func viewDidLoad() {
    super.viewDidLoad()

    loadLocation()
    retrieveWeatherForecast()
}

如果您发现我的代码有任何其他问题，您也可以指出。

更新:

按照 trojanfoe 的建议进行更改后，这就是我所拥有的:

func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {

    self.locationManager.stopUpdatingLocation()
    let location = locations.first
    var geoCoder: CLGeocoder!

    geoCoder.reverseGeocodeLocation(location!) { (placemarks: [CLPlacemark]?, error: NSError?) -> Void in

        let placemark: CLPlacemark = (placemarks?.first)!
        self.location = placemark.locality
        self.location = placemark.administrativeArea
    }
}

Xcode 要我将 var geoCoder: CLGeocoder! 更改为 let geoCoder: CLGeocoder!。如果这样做，我会收到此错误 Variable 'geoCoder' captured by a closure before being initialized。我该怎么办？

Answer 1

CLLocation 是类(即类型)。

您不想将传递给该方法的数组中的实例之一传递给它吗？

例如:

var location = locations.first
let geoCoder = CLGeocoder()
geoCoder.reverseGeocodeLocation(location: location) { ...