CLLocationManager委托方法没有被调用（谷歌地图已集成） [英] CLLocationManager delegate methods are not getting called(google maps is integrated)

问题描述

CLLocationManager的委托方法

didChangeAuthorizationStatus
和
didUpdateToLocation

没有被调用。

位置始终使用说明key已添加到info.plist中，并且我在第一次启动应用程序时也收到通知。

我可以看到google地图，但我无法看到当前位置，当我更改位置时，它没有更新。

// code

 导入UIKit 
导入GoogleMaps 
 
类ViewController：UIViewController，GMSMapViewDelegate {
 @IBOutlet弱var mapViewTest：GMSMapView！ 
 let locationManager = CLLocationManager（）
 var currentLocation：CLLocation = CLLocation（纬度：0.0，经度：0.0）
 var currentLatitude：Double = 0.0 
 var currentLongitude：Double = 0.0 
覆盖func viewDidLoad（）
 {
 super.viewDidLoad（）``
 locationManager.delegate = self 
 if（CLLocationManager.locationServicesEnabled（））
 { 
 locationManager.desiredAccuracy = kCLLocationAccuracyBest 
 locationManager.allowsBackgroundLocationUpdates = true 
 locationManager.requestAlwaysAuthorization（）
 locationManager.startUpdatingLocation（）
} 
 //做任何额外的加载视图后设置，通常从一个笔尖。 
 
 
 
 
扩展ViewController：CLLocationManagerDelegate 
 {
 func locationManager（manager：CLLocationManager，didChangeAuthorizationStatus status：CLAuthorizationStatus）
 {
 if status == .authorizedAlways 
 {
 if（CLLocationManager .locationServicesEnabled（））
 {
 locationManager.startUpdatingLocation（）
 mapViewTest.isMyLocationEnabled = true 
 mapViewTest.settings.myLocationButton = true 
} 
} 
} 
 func locationManager（manager：CLLocationManager，didUpdateToLocation newLocation：CLLocation，fromLocation oldLocation：CLLocation）
 {
 mapViewTest.camera = GMSCameraPosition（target：（newLocation.coordinate），zoom：15，bearing：0，viewingAngle：0）
 currentLocation = newLocation 
 currentLatitude = newLocation.coordinate.latitude 
 currentLongitude = newLocation.coordinate.longitude 
 
 $ b func locationManager（manager：CLLocationManager，didFailWithError error：NSError）
 {
 print（Errors：+ error.localizedDescription）
} 
} 
  

从你的代码中，你正在使用Swift 3，并且在Swift 3中使用 CLLocationManagerDelegate 方法的签名是这样改变的。 >

  func locationManager（_ manager：CLLocationManager，didChangeAuthorization status：CLAuthorizationStatus）{
 
} 
 
 // func locationManager（_ manager：CLLocationManager，didUpdateTo newLocation：CLLocation，
 from oldLocation：CLLocation）在
 func locationManager（_ manager：CLLocationManager，didUpdateLocations locations：[CLLocation]）之下被弃用{
 
} 
 
 func locationManager（_ manager：CLLocationManager，didFailWithError error：Error）{
 
} 
  

检查Apple文档，了解 CLLocationManagerDelegate 了解更多详情。

The delegate Methods of CLLocationManager

didChangeAuthorizationStatus and didUpdateToLocation

are not getting called.

Location Always Usage Description key is already added in info.plist and I am getting notification also when i launch app for the first time.

I am able to see the google map, but i am not able to see current location, When i change location, its not getting updated. Basicaaly delegate methods are not getting called.

//code

import UIKit
import GoogleMaps

class ViewController: UIViewController,GMSMapViewDelegate {
    @IBOutlet weak var mapViewTest: GMSMapView!
    let locationManager = CLLocationManager()
    var currentLocation :CLLocation = CLLocation(latitude: 0.0, longitude: 0.0)
    var currentLatitude : Double = 0.0
    var currentLongitude : Double = 0.0
    override func viewDidLoad() 
     {
        super.viewDidLoad()``
        locationManager.delegate = self
        if (CLLocationManager.locationServicesEnabled())
        {
        locationManager.desiredAccuracy = kCLLocationAccuracyBest
        locationManager.allowsBackgroundLocationUpdates = true
        locationManager.requestAlwaysAuthorization()
        locationManager.startUpdatingLocation()
        }
        // Do any additional setup after loading the view, typically from a nib.
    }
}


    extension ViewController : CLLocationManagerDelegate
    {
       func locationManager(manager: CLLocationManager,     didChangeAuthorizationStatus status: CLAuthorizationStatus)
        {
            if status == .authorizedAlways
            {
                if(CLLocationManager .locationServicesEnabled())
                {
                    locationManager.startUpdatingLocation()
                    mapViewTest.isMyLocationEnabled = true
                    mapViewTest.settings.myLocationButton = true
                }
            }
        }
         func locationManager(manager: CLLocationManager, didUpdateToLocation newLocation: CLLocation, fromLocation oldLocation: CLLocation)
        {
            mapViewTest.camera = GMSCameraPosition(target: (newLocation.coordinate), zoom: 15, bearing: 0, viewingAngle: 0)
            currentLocation = newLocation
            currentLatitude = newLocation.coordinate.latitude
            currentLongitude = newLocation.coordinate.longitude

        }
        func locationManager(manager: CLLocationManager, didFailWithError error: NSError)
        {
            print("Errors: " + error.localizedDescription)
        }
    }

解决方案

From your code you are working with Swift 3, and in Swift 3 CLLocationManagerDelegate method's signature is changed like this.

func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) {

}

//func locationManager(_ manager: CLLocationManager, didUpdateTo newLocation: CLLocation, 
       from oldLocation: CLLocation) is deprecated with below one
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {

}

func locationManager(_ manager: CLLocationManager, didFailWithError error: Error) {

}

Check Apple Documentation on CLLocationManagerDelegate for more details.

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