在模拟器中启用了CoreLocation

Question

didUpdateLocations没有触发 -CLLocationManagerDelegate是使用viewcontroller作为委托正确实现的

import Foundation
import UIKit
import CoreLocation

protocol LocationServiceDelegate {
    func tracingLocation(currentLocation: CLLocation)
    func tracingLocationDidFailWithError(error: NSError)
}

class LocationService: NSObject, CLLocationManagerDelegate {

    static var sharedInstance = LocationService()

    var locationManager: CLLocationManager?
    var currentLocation: CLLocation?
    var delegate: LocationServiceDelegate?
    var paymentVC: PaymentViewController?

    override init() {
        super.init()

        self.locationManager = CLLocationManager()
        guard let locationManager = self.locationManager else {
            return
        }

        if CLLocationManager.authorizationStatus() == .notDetermined {
            locationManager.requestAlwaysAuthorization()
        }

        locationManager.distanceFilter = 200

    }

    func startUpdatingLocation() {
        print("Starting Location Updates")
        self.locationManager!.startUpdatingLocation()
    }

    func stopUpdatingLocation() {
        print("Stop Location Updates")
        self.locationManager?.stopUpdatingLocation()
    }

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

        guard let location = locations.last else {
            return
        }

        self.currentLocation = location
        updateLocation(currentLocation: location)
    }

    private func locationManager(manager: CLLocationManager, didFailWithError error: Error) {
        updateLocationDidFailWithError(error: error as NSError)
    }

    private func updateLocation(currentLocation: CLLocation){
        guard let delegate = self.delegate else {
            return
        }
        delegate.tracingLocation(currentLocation: currentLocation)
    }

    private func updateLocationDidFailWithError(error: NSError) {
        guard let delegate = self.delegate else {
            return
        }
        delegate.tracingLocationDidFailWithError(error: error)
    }
}

• 这是viewcontroller的扩展，我在其中实现了用于自定义协议的核心定位跟踪

• 我在viewDidLoad中调用 startUpdatingLocations（）

  extension PaymentViewController: LocationServiceDelegate,CLLocationManagerDelegate {
  
  func tracingLocation(currentLocation: CLLocation) {
      locationService.currentLocation = currentLocation
  }
  
  func tracingLocationDidFailWithError(error: NSError) {
      print("Error message: \(error.localizedDescription)")
  }
  
  func startUpdatingLocations() {
      locationService.locationManager?.delegate = self
      locationService.delegate = self
      locationService.startUpdatingLocation()
  }
  
  func stopUpdatingLocations() {
      LocationService.sharedInstance.stopUpdatingLocation()
  }
  }
  

corelocation跟踪未在模拟器中触发。但这是启用的。

enter image description here 不幸的是，我现在无法用设备进行测试

Answer 1

我知道在模拟器上模拟核心位置跟踪的唯一方法是选择模拟器的“调试”选项卡中可用的位置选项之一。