当我运行代码时，窗口会弹出，询问使用位置的权限，但几乎立即消失，用户没有机会单击“允许”。有没有办法在继续之前强制执行此操作？
import UIKit
import MapKit
import CoreLocation
class MapViewController: UIViewController, MKMapViewDelegate, CLLocationManagerDelegate{
var map:MKMapView?
var manager:CLLocationManager!
convenience init(frame:CGRect){
self.init(nibName: nil, bundle: nil)
self.view.frame = frame
self.map = MKMapView(frame: frame)
self.map!.delegate = self
self.view.addSubview(self.map!)
}
override func viewDidLoad() {
super.viewDidLoad()
// Core Location
manager = CLLocationManager()
manager.delegate = self
manager.desiredAccuracy = kCLLocationAccuracyBest
}
func locationManager(manager: CLLocationManager!,
didChangeAuthorizationStatus status: CLAuthorizationStatus){
print("The authorization status of location services is changed to: ")
switch CLLocationManager.authorizationStatus(){
case .Denied:
println("Denied")
case .NotDetermined:
println("Not determined")
case .Restricted:
println("Restricted")
default:
println("Authorized")
}
}
func displayAlertWithTitle(title: String, message: String){
let controller = UIAlertController(title: title,
message: message,
preferredStyle: .Alert)
controller.addAction(UIAlertAction(title: "OK",
style: .Default,
handler: nil))
presentViewController(controller, animated: true, completion: nil)
}
override func viewDidAppear(animated: Bool) {
super.viewDidAppear(animated)
if CLLocationManager.locationServicesEnabled(){
switch CLLocationManager.authorizationStatus(){
case .Denied:
displayAlertWithTitle("Not Determined",
message: "Location services are not allowed for this app")
case .NotDetermined:
manager.requestWhenInUseAuthorization()
manager.startUpdatingLocation()
case .Restricted:
displayAlertWithTitle("Restricted",
message: "Location services are not allowed for this app")
default:
println("Default")
}
} else {
println("Location services are not enabled")
}
}
func locationManager(manager:CLLocationManager, didUpdateLocations locations:[AnyObject]) {
var userLocation:CLLocation = locations[0] as! CLLocation
var latitude:CLLocationDegrees = userLocation.coordinate.latitude
var longitude:CLLocationDegrees = userLocation.coordinate.longitude
var latDelta:CLLocationDegrees = 1.0
var lonDelta:CLLocationDegrees = 1.0
var span:MKCoordinateSpan = MKCoordinateSpanMake(latDelta, lonDelta)
var location:CLLocationCoordinate2D = CLLocationCoordinate2DMake(latitude, longitude)
var region:MKCoordinateRegion = MKCoordinateRegionMake(location, span)
map!.setRegion(region, animated: true)
manager.stopUpdatingLocation()
}
最佳答案
请尝试这个:
import UIKit
import GoogleMaps
import CoreLocation
class StartViewController: UIViewController,CLLocationManagerDelegate,GMSMapViewDelegate {
var locationManager: CLLocationManager = CLLocationManager()
override func viewDidLoad() {
super.viewDidLoad()
setupLocationManager()
}
func setupLocationManager() {
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.delegate = self
locationManager.requestWhenInUseAuthorization()
}
func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) {
locationHandler()
}
func locationHandler() {
if CLLocationManager.locationServicesEnabled() == true {
if (CLLocationManager.authorizationStatus() == .denied) {
// The user denied authorization
} else if (CLLocationManager.authorizationStatus() == .authorizedAlways) {
// The user accepted authorization
} else if (CLLocationManager.authorizationStatus() == .notDetermined){
// The user not determiend authorization
}else if (CLLocationManager.authorizationStatus() == .authorizedWhenInUse){
// In use
}else{ }
}else{
//Access to user location permission denied!
}
}
}//class
取得成功。
关于ios - NSLocation 不等我点击允许，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/30737530/