检索用户的当前位置/检索经度和纬度值watchkit / ios swift

Question

我想获取用户的当前位置（经度和纬度），但是两个变量的值都为0。我不知道问题出在哪里。我正在阅读本教程，并更新了app文件夹和watch扩展文件夹（NSLocationWhenInUseUsageDescription和NSLocationAlwaysUsageDescription）的infop.list，将所需的Watchconnector插入了两个带有cocoapods的文件夹中，并且我还通过带有库的链接二进制文件添加了Corelocation框架。 我对swift和观看操作系统知之甚少，希望任何人都能提供帮助。 这是项目文件：https://ufile.io/l5elkpsw

非常感谢您。

这是我的Appdelegate和Interfacecontroller文件：

import UIKit
import CoreLocation
import MapKit



@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate, CLLocationManagerDelegate  {
    let locationManager:CLLocationManager = CLLocationManager()
    var currentLocation = CLLocation()

    var window: UIWindow?

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        // Override point for customization after application launch.
        WatchConnector.shared.activateSession()

        self.locationManager.delegate = self
        self.locationManager.desiredAccuracy = kCLLocationAccuracyBest
        self.locationManager.requestLocation()
        self.locationManager.requestWhenInUseAuthorization()
        self.locationManager.startUpdatingLocation()
        return true
    }

    func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
        if locations.count == 0
        {
            return
        }
        self.currentLocation = locations.first!
        let message = ["lat":self.currentLocation.coordinate.latitude,"long":self.currentLocation.coordinate.longitude]
        WatchConnector.shared.sendMessage(message, withIdentifier: "sendCurrentLocation") { (error) in
            print("error in send message to watch\(error.localizedDescription)")
        }

    }
    func locationManager(_ manager: CLLocationManager, didFailWithError error: Error) {
        print("Fail to load location")
        print(error.localizedDescription)
    }

    func applicationWillResignActive(_ application: UIApplication) {
        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
    }

    func applicationDidEnterBackground(_ application: UIApplication) {
        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
    }

    func applicationWillEnterForeground(_ application: UIApplication) {
        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
    }

    func applicationDidBecomeActive(_ application: UIApplication) {
        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
    }

    func applicationWillTerminate(_ application: UIApplication) {
        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
    }


}

import WatchKit
import Foundation
import CoreLocation


class InterfaceController: WKInterfaceController{
    private let locationAccessUnauthorizedMessage = "Locations Disabled\n\nEnable locations for this app via the Settings in your iPhone to see meetups near you!"
    private let pendingAccessMessage = "Grant location access to GPS dummy"

    @IBOutlet weak var map: WKInterfaceMap!
    @IBOutlet weak var button: WKInterfaceButton!
    @IBOutlet weak var latitudeL: WKInterfaceLabel!
    @IBOutlet weak var longitudeL: WKInterfaceLabel!

    @IBOutlet weak var authorizeL: WKInterfaceLabel!
    var currentLocation = CLLocation()
    let locationManager = CLLocationManager()

    var lat: Double = 0.0
    var long: Double = 0.0


    override func awake(withContext context: Any?) {
        super.awake(withContext: context)

        locationManager.delegate = self
        locationManager.desiredAccuracy = kCLLocationAccuracyBest
        // Configure interface objects here.
    }


    override func willActivate() {
        // This method is called when watch view controller is about to be visible to user
        super.willActivate()
        WatchConnector.shared.listenToMessageBlock({ (message) in

            self.lat = message["lat"] as! Double
            self.long = message["long"] as! Double
            print(self.lat)
            print(self.long)

            self.currentLocation = CLLocation(latitude: self.lat as! CLLocationDegrees, longitude: self.long as! CLLocationDegrees)

            let mylocation : CLLocationCoordinate2D = CLLocationCoordinate2DMake(self.currentLocation.coordinate.latitude, self.currentLocation.coordinate.longitude)
            let span = MKCoordinateSpan(latitudeDelta: 0.1, longitudeDelta: 0.1)
            let region = MKCoordinateRegion(center: mylocation, span: span)
            self.map.setRegion(region)
            self.map.addAnnotation(mylocation, with: .red)
        }, withIdentifier: "sendCurrentLocation")

        let authorizationStatus = CLLocationManager.authorizationStatus()
        handleLocationServicesAuthorizationStatus(authorizationStatus)
    }

    func handleLocationServicesAuthorizationStatus(_ status: CLAuthorizationStatus) {
        switch status {
        case .notDetermined:
            print("handleLocationServicesAuthorizationStatus: .undetermined")
            handleLocationServicesStateNotDetermined()
        case .restricted, .denied:
            print("handleLocationServicesAuthorizationStatus: .restricted, .denied")
            handleLocationServicesStateUnavailable()
        case .authorizedAlways, .authorizedWhenInUse:
            print("handleLocationServicesAuthorizationStatus: .authorizedAlways, .authorizedWhenInUse")
            handleLocationServicesStateAvailable(status)
        }
    }

    func handleLocationServicesStateNotDetermined() {
        authorizeL.setText(pendingAccessMessage)
        locationManager.requestWhenInUseAuthorization()
    }

    func handleLocationServicesStateUnavailable() {
        authorizeL.setText(locationAccessUnauthorizedMessage)
    }

    func handleLocationServicesStateAvailable(_ status: CLAuthorizationStatus) {
        switch status {
        case .authorizedAlways:
            locationManager.startUpdatingLocation()
        case .authorizedWhenInUse:
            locationManager.requestLocation()
        default:
            break
        }
    }


    override func didDeactivate() {
        // This method is called when watch view controller is no longer visible
        super.didDeactivate()
    }


    @IBAction func btnPressed() {
        self.latitudeL.setText("\(self.lat)")
        self.longitudeL.setText("\(self.long)")

        print("\(locationManager.requestLocation())")
        print("\(self.lat)")
        print("\(self.long)")
    }

}

extension InterfaceController: CLLocationManagerDelegate {

    func locationManager(_ manager: CLLocationManager, didFailWithError error: Error) {
        print("error:: \(error.localizedDescription)")
    }

    func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) {
        if status == .authorizedWhenInUse {
            locationManager.requestLocation()
        }
    }

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

        if locations.first != nil {
            print("location:: (location)")
        }

    }

}

Answer 1

您要在模拟器上进行测试吗？如果是这样，您可能需要在“调试/位置”菜单中将位置设置为某些内容：