【发布时间】：2019-05-02 16:26:20
【问题描述】：
我想获取用户的当前位置（经度和纬度），但我只得到了两个变量的 0。我不知道问题出在哪里。我正在关注本教程并更新了应用程序文件夹的 infop.list 和监视扩展文件夹（NSLocationWhenInUseUsageDescription 和 NSLocationAlwaysUsageDescription），将所需的 Watchconnector 插入到两个带有 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watch os知之甚少，希望有人能提供帮助。 这是项目文件：https://ufile.io/l5elkpsw
非常感谢。
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)")
}
}
}
【问题讨论】：
标签： ios swift location watchkit