导致错误的原因是＆＃34;无法转换类型＆＃39; CLLocation.Type＆＃39;期望参数类型＆＃39; CLLocation＆＃39;＆＃34;

Question

我正在尝试将位置检测添加到应用程序，并且在大多数情况下我已经弄清楚了。但是我遇到了reverseGeocodeLocation方法的问题。我收到错误cannot convert value of type 'CLLocation.Type' to expected argument type 'CLLocation'。会导致什么？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
    }
}

在locationManager：

之上调用

location和viewDidLoad

var locationManager: CLLocationManager!
var location: String!

override func viewDidLoad() {
    super.viewDidLoad()

    loadLocation()
    retrieveWeatherForecast()
}

如果您发现我的代码存在任何其他问题，您也可以指出这一点。

更新

在做出trojanfoe建议的更改之后，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!。如果我这样做，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）。

你不想传递给传递给该方法的数组中的一个实例吗？

例如：

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