我的视图控制器上有这个代码，但这不起作用：
import UIKit
import CoreLocation
class ViewController: UIViewController, CLLocationManagerDelegate {
var location: CLLocationManager!
override func viewDidLoad() {
super.viewDidLoad()
location=CLLocationManager()
location.delegate = self
location.desiredAccuracy=kCLLocationAccuracyBest
location.startUpdatingLocation()
}
func locationManager(location:CLLocationManager, didUpdateLocations locations:AnyObject[]) {
println("locations = \(locations)")
label1.text = "success"
}
我对其他帖子中的阅读方式有所了解。但我没有得到永远，没有印刷品..
谢谢！
答案 0 :(得分：19)
首先在plist文件中添加这两行
1）NSLocationWhenInUseUsageDescription
2）NSLocationAlwaysUsageDescription
然后这是类工作完成实现这个
import UIKit
import CoreLocation
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate, CLLocationManagerDelegate {
var window: UIWindow?
var locationManager: CLLocationManager!
var seenError : Bool = false
var locationFixAchieved : Bool = false
var locationStatus : NSString = "Not Started"
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: NSDictionary?) -> Bool {
initLocationManager();
return true
}
// Location Manager helper stuff
func initLocationManager() {
seenError = false
locationFixAchieved = false
locationManager = CLLocationManager()
locationManager.delegate = self
locationManager.locationServicesEnabled
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.requestAlwaysAuthorization()
}
// Location Manager Delegate stuff
func locationManager(manager: CLLocationManager!, didFailWithError error: NSError!) {
locationManager.stopUpdatingLocation()
if (error) {
if (seenError == false) {
seenError = true
print(error)
}
}
}
func locationManager(manager: CLLocationManager!, didUpdateLocations locations: AnyObject[]!) {
if (locationFixAchieved == false) {
locationFixAchieved = true
var locationArray = locations as NSArray
var locationObj = locationArray.lastObject as CLLocation
var coord = locationObj.coordinate
println(coord.latitude)
println(coord.longitude)
}
}
func locationManager(manager: CLLocationManager!,
didChangeAuthorizationStatus status: CLAuthorizationStatus) {
var shouldIAllow = false
switch status {
case CLAuthorizationStatus.Restricted:
locationStatus = "Restricted Access to location"
case CLAuthorizationStatus.Denied:
locationStatus = "User denied access to location"
case CLAuthorizationStatus.NotDetermined:
locationStatus = "Status not determined"
default:
locationStatus = "Allowed to location Access"
shouldIAllow = true
}
NSNotificationCenter.defaultCenter().postNotificationName("LabelHasbeenUpdated", object: nil)
if (shouldIAllow == true) {
NSLog("Location to Allowed")
// Start location services
locationManager.startUpdatingLocation()
} else {
NSLog("Denied access: \(locationStatus)")
}
}
}
答案 1 :(得分：5)
以下是在Swift 3中获取用户位置的简单步骤
1）首先在带有描述
的plist文件中添加这一行 NSLocationWhenInUseUsageDescription
2）在项目中添加CoreLocation.framework（在Build Phases-＆gt; Link Binary with Library）下
3）在AppDelegate类
中 import CoreLocation
4）按如下方式创建locationManager对象
var locationManager:CLLocationManager!
5）在didFinishLaunchingWithOptions
中编写以下代码 locationManager = CLLocationManager()
locationManager.delegate = self
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.distanceFilter = 200
locationManager.requestWhenInUseAuthorization()
locationManager.startUpdatingLocation()
6）确认CLLocationManagerDelegate委托，如下所示
class AppDelegate: UIResponder, UIApplicationDelegate, CLLocationManagerDelegate
7）编写CLLocationManagerDelegate委托方法以获取用户位置
func locationManager(_ manager: CLLocationManager, didFailWithError error: Error) {
print("location error is = \(error.localizedDescription)")
}
func locationManager(_ manager: CLLocationManager,
didUpdateLocations locations: [CLLocation]) {
let locValue:CLLocationCoordinate2D = (manager.location?.coordinate)!
print("Current Locations = \(locValue.latitude) \(locValue.longitude)")
}
答案 2 :(得分：2)
由于您将位置声明为显式解包的可选项（CLLocationManager！），因此它需要初始化程序，无论是在jhurray建议的init方法中，还是内联，如下：
var location: CLLocationManager! = nil
请注意，您还有其他可能的问题，包括iOS 8对查询用户使用CoreLocation的权限有新的要求。有关详细信息，请参阅此question。
答案 3 :(得分：2)
这与上面的代码相同，但截至本帖发布之日已清理为使用Swift。这对我有用。
赞赏原版海报。
（请注意，请将其粘贴到您将用于处理位置内容的任何课程中。）
var lastLocation = CLLocation()
var locationAuthorizationStatus:CLAuthorizationStatus!
var window: UIWindow?
var locationManager: CLLocationManager!
var seenError : Bool = false
var locationFixAchieved : Bool = false
var locationStatus : NSString = "Not Started"
override func viewDidAppear(animated: Bool) {
super.viewDidAppear(animated)
self.initLocationManager()
}
// Location Manager helper stuff
func initLocationManager() {
seenError = false
locationFixAchieved = false
locationManager = CLLocationManager()
locationManager.delegate = self
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.requestAlwaysAuthorization()
}
// Location Manager Delegate stuff
func locationManager(manager: CLLocationManager!, didFailWithError error: NSError!) {
locationManager.stopUpdatingLocation()
if ((error) != nil) {
if (seenError == false) {
seenError = true
print(error)
}
}
}
func locationManager(manager: CLLocationManager!, didUpdateLocations locations: [AnyObject]!) {
if (locationFixAchieved == false) {
locationFixAchieved = true
var locationArray = locations as NSArray
var locationObj = locationArray.lastObject as CLLocation
var coord = locationObj.coordinate
println(coord.latitude)
println(coord.longitude)
}
}
func locationManager(manager: CLLocationManager!, didChangeAuthorizationStatus status: CLAuthorizationStatus) {
var shouldIAllow = false
switch status {
case CLAuthorizationStatus.Restricted:
locationStatus = "Restricted Access to location"
case CLAuthorizationStatus.Denied:
locationStatus = "User denied access to location"
case CLAuthorizationStatus.NotDetermined:
locationStatus = "Status not determined"
default:
locationStatus = "Allowed to location Access"
shouldIAllow = true
}
NSNotificationCenter.defaultCenter().postNotificationName("LabelHasbeenUpdated", object: nil)
if (shouldIAllow == true) {
NSLog("Location to Allowed")
// Start location services
locationManager.startUpdatingLocation()
} else {
NSLog("Denied access: \(locationStatus)")
}
}
答案 4 :(得分：0)
你需要有init函数。
覆盖init（编码器:)和init（nibName：bundle :)并添加您想要的任何自定义初始化。
因为您已经说过该位置不是可选的，所以必须在超级init调用所有init函数之前对其进行初始化。
func init() {
...
location = CLLocationManager()
// either set delegate and other stuff here or in viewDidLoad
super.init(nibName:nil, bundle:nil)
// other initialization below
}
答案 5 :(得分：0)
应该写成 func locationManager（manager：CLLocationManager，didUpdateLocations locations：[CLLocation]）{
答案 6 :(得分：0)
在viewcontroller中执行以下操作[使用swift] -
class ViewController:
UIViewController,MKMapViewDelegate,CLLocationManagerDelegate {
var locationManager: CLLocationManager?
var usersCurrentLocation:CLLocationCoordinate2D?
override func viewDidLoad() {
super.viewDidLoad()
self.locationManager = CLLocationManager()
if CLLocationManager.authorizationStatus() == .NotDetermined{
locationManager?.requestAlwaysAuthorization()
}
locationManager?.desiredAccuracy = kCLLocationAccuracyBest
locationManager?.distanceFilter = 200
locationManager?.delegate = self
startUpdatingLocation()
usersCurrentLocation = CLLocationCoordinate2DMake(LATTITUDE, LONGITUDE)
let span = MKCoordinateSpanMake(0.005, 0.005)
let region = MKCoordinateRegionMake(usersCurrentLocation!, span)
mapview.setRegion(region, animated: true)
mapview.delegate = self
mapview.showsUserLocation = true
}
// MARK：CLLocationManagerDelegate方法
func startUpdatingLocation() {
self.locationManager?.startUpdatingLocation()
}
func stopUpdatingLocation() {
self.locationManager?.stopUpdatingLocation()
}
// MARK：MKMapViewDelegate
func mapView(mapView: MKMapView, didUpdateUserLocation userLocation: MKUserLocation){
mapview.centerCoordinate = userLocation.location!.coordinate
mapview.showsUserLocation = true
regionWithGeofencing()
}