CLLocationManager 有时 returns (0, 0) 坐标

Question

我正在使用 CLLocationManager 获取用户坐标。然后我将它发送到我们的网站 API 以获取一些信息。但是最近，API 开始返回由零坐标引起的错误。在错误报告中，我发现一小部分用户开始从 CLLocationManager 获取 (0, 0) 坐标。关键是我们没有改变任何有关地理位置的信息。我有点惊讶，因为这部分已经完美地工作了 2 年了。

地理位置代码是标准的：

locationManager.requestWhenInUseAuthorization()

func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation])
{
    //Started returning (0, 0) sometimes
}

我用谷歌搜索了这个问题，但没有结果。有什么猜测吗？

Answer 1

嘿@Edward 将此代码用于定位。 add 还要在 info.plist

中添加密钥

NSAppTransportSecurity, NSLocationAlwaysUsageDescription, NSLocationWhenInUseUsageDescription

//  AppDelegate.swift

 import UIKit


 @UIApplicationMain
 class AppDelegate: UIResponder, UIApplicationDelegate,CLLocationManagerDelegate {

var addressString : String!
var locationManager = CLLocationManager()
var lat : Double!
var long : Double!
var cordinates = CLLocationCoordinate2D()
var searchLocationCordinate = CLLocationCoordinate2D()
var currentLocation: CLLocation!


func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {

locationManager.delegate = self
    locationManager.requestWhenInUseAuthorization()
    locationManager.desiredAccuracy = kCLLocationAccuracyBest
    locationManager.requestAlwaysAuthorization()
    locationManager.startUpdatingLocation()

checkLocation()

}

 func checkLocation() {
    if CLLocationManager.authorizationStatus() != .authorizedWhenInUse
    {
        print("requestingautorization")
        locationManager.requestWhenInUseAuthorization()

    } else {
        print("startupdatinglocation")
    }
}




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

    let userLocation:CLLocation = locations[0] as CLLocation
    cordinates = CLLocationCoordinate2D(latitude: userLocation.coordinate.latitude,longitude: userLocation.coordinate.longitude)
    print(cordinates)

}

Answer 2

嘿，我会检查准确性，请参阅 Apple 文档 (@Discussion)，该值可以指示您的位置是否有效

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

    guard let location = locations.last, location.horizontalAccuracy >= 0 else {
        return

    }
}

独库：

https://developer.apple.com/documentation/corelocation/cllocation/1423599-horizontalaccuracy https://developer.apple.com/documentation/corelocation/cllocation/1423550-verticalaccuracy

P.S.: 我永远不会访问带有索引的位置 'locations[0]' 往往会产生错误 -> 像我一样保护最后一个位置，你应该没问题。

希望这对您有所帮助。 (:

CLLocationManager 有时 returns (0, 0) 坐标

CLLocationManager sometimes returns (0, 0) coordinate

iphone

cllocationmanager

ios

swift