swift - 在模拟器中启用 CoreLocation

Question

didUpdateLocations 没有触发- CLLocationManagerDelegate 已使用 View Controller 作为委托(delegate)正确实现

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 View Controller 的扩展，我在其中实现了用于核心定位跟踪的自定义协议(protocol)

• 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。但是，这是启用的。

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

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调试选项卡中可用的位置选项之一。