Get User s Current Location Coordinates

Question

How can I store the user s current location and also show the location on a map   I am able to show pre-defined coordinates on a map  I just don t know how to receive information from the device   Also I know I have to add some items into a Plist  How can I do that

User · Answer

First import Corelocation and MapKit library:

import MapKit
import CoreLocation

inherit from CLLocationManagerDelegate to our class

class ViewController: UIViewController, CLLocationManagerDelegate

create a locationManager variable, this will be your location data

var locationManager = CLLocationManager()

create a function to get the location info, be specific this exact syntax works:

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

in your function create a constant for users current location

let userLocation:CLLocation = locations[0] as CLLocation // note that locations is same as the one in the function declaration

stop updating location, this prevents your device from constantly changing the Window to center your location while moving (you can omit this if you want it to function otherwise)

manager.stopUpdatingLocation()

get users coordinate from userLocatin you just defined:

let coordinations = CLLocationCoordinate2D(latitude: userLocation.coordinate.latitude,longitude: userLocation.coordinate.longitude)

define how zoomed you want your map be:

let span = MKCoordinateSpanMake(0.2,0.2) combine this two to get region:

let region = MKCoordinateRegion(center: coordinations, span: span)//this basically tells your map where to look and where from what distance

now set the region and choose if you want it to go there with animation or not

mapView.setRegion(region, animated: true)

close your function }

from your button or another way you want to set the locationManagerDeleget to self

now allow the location to be shown

designate accuracy

locationManager.desiredAccuracy = kCLLocationAccuracyBest

authorize:

 locationManager.requestWhenInUseAuthorization()

to be able to authorize location service you need to add this two lines to your plist

get location:

locationManager.startUpdatingLocation()

show it to the user:

mapView.showsUserLocation = true

This is my complete code:

import UIKit
import MapKit
import CoreLocation

class ViewController: UIViewController, CLLocationManagerDelegate {

    @IBOutlet weak var mapView: MKMapView!

    var locationManager = CLLocationManager()


    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }


    @IBAction func locateMe(sender: UIBarButtonItem) {
        locationManager.delegate = self
        locationManager.desiredAccuracy = kCLLocationAccuracyBest
        locationManager.requestWhenInUseAuthorization()
        locationManager.startUpdatingLocation()

        mapView.showsUserLocation = true

    }

    func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
        let userLocation:CLLocation = locations[0] as CLLocation

        manager.stopUpdatingLocation()

        let coordinations = CLLocationCoordinate2D(latitude: userLocation.coordinate.latitude,longitude: userLocation.coordinate.longitude)
        let span = MKCoordinateSpanMake(0.2,0.2)
        let region = MKCoordinateRegion(center: coordinations, span: span)

        mapView.setRegion(region, animated: true)

    }
}

User · Answer

override func viewDidLoad          super viewDidLoad              locationManager requestWhenInUseAuthorization             if CLLocationManager locationServicesEnabled             locationManager delegate   self         locationManager desiredAccuracy   kCLLocationAccuracyNearestTenMeters         locationManager startUpdatingLocation             else          print  Location service disabled                This is your view did load method and in the ViewController Class also include the mapStart updating method as follows  func locationManager manager  CLLocationManager   didUpdateLocations locations   AnyObject          var locValue   CLLocationCoordinate2D   manager location coordinate      let span2   MKCoordinateSpanMake 1  1          let long   locValue longitude      let lat   locValue latitude      print long       print lat               let loadlocation   CLLocationCoordinate2D                      latitude  lat  longitude  long                             mapView centerCoordinate   loadlocation      locationManager stopUpdatingLocation        Also do not forget to add CoreLocation FrameWork and MapKit Framework in your project  no longer necessary as of XCode 7 2 1

User · Answer

100  working in iOS Swift 4   by  Parmar Sajjad  Step 1  Goto GoogleDeveloper Api Console And create your ApiKey  Step 2  Goto Project install Cocoapods GoogleMaps pod   step 3  Goto AppDelegate swift import GoogleMaps and     func application   application  UIApplication  didFinishLaunchingWithOptions launchOptions   UIApplicationLaunchOptionsKey  Any    - gt  Bool          Override point for customization after application launch       GMSServices provideAPIKey  ApiKey       return true     step 4   import UIKit import GoogleMaps class ViewController  UIViewController  CLLocationManagerDelegate     IBOutlet weak var mapview  UIView  let locationManager    CLLocationManager    override func viewDidLoad         super viewDidLoad       locationManagerSetting          Do any additional setup after loading the view  typically from a nib     override func didReceiveMemoryWarning         super didReceiveMemoryWarning          Dispose of any resources that can be recreated      func locationManagerSetting          self locationManager delegate   self     self locationManager desiredAccuracy   kCLLocationAccuracyNearestTenMeters     self locationManager requestWhenInUseAuthorization       self locationManager startUpdatingLocation     func locationManager   manager  CLLocationManager  didUpdateLocations locations   CLLocation          self showCurrentLocationonMap       self locationManager stopUpdatingLocation     func showCurrentLocationonMap         let     cameraposition    GMSCameraPosition camera withLatitude   self locationManager location  coordinate latitude      longitude   self locationManager location  coordinate longitude    zoom  18      let  mapviewposition   GMSMapView map withFrame  CGRect x  0  y  0  width  self mapview frame size width  height  self mapview frame size height   camera  cameraposition      mapviewposition settings myLocationButton   true     mapviewposition isMyLocationEnabled   true      let marker   GMSMarker       marker position   cameraposition target     marker snippet    Macczeb Technologies      marker appearAnimation   GMSMarkerAnimation pop     marker map   mapviewposition     self mapview addSubview mapviewposition          step 5   open info plist file  and Add below Privacy - Location When In Use Usage Description        below a  Main storyboard file base name  step 6  run

User · Answer

you should do those steps    add CoreLocation framework to BuildPhases -  Link Binary With Libraries  no longer necessary as of XCode 7 2 1  import CoreLocation to your class - most likely ViewController swift add CLLocationManagerDelegate to your class declaration add NSLocationWhenInUseUsageDescription and NSLocationAlwaysUsageDescription to plist init location manager   locationManager   CLLocationManager   locationManager delegate   self  locationManager desiredAccuracy   kCLLocationAccuracyBest locationManager requestAlwaysAuthorization   locationManager startUpdatingLocation    get User Location By   func locationManager   manager  CLLocationManager  didUpdateLocations locations   CLLocation         let locValue CLLocationCoordinate2D   manager location  coordinate     print  locations     locValue latitude    locValue longitude

User · Answer

NSLocationWhenInUseUsageDescription   Request permission to use location service when the apps is in background  in your plist file   If this works then please vote the answer

User · Answer

Import library like   import CoreLocation   set Delegate   CLLocationManagerDelegate   Take variable like   var locationManager CLLocationManager    On viewDidLoad   write this pretty code    locationManager   CLLocationManager       locationManager delegate   self     locationManager desiredAccuracy   kCLLocationAccuracyBest     locationManager requestAlwaysAuthorization        if CLLocationManager locationServicesEnabled            locationManager startUpdatingLocation           Write CLLocation delegate methods         MARK  - location delegate methods func locationManager   manager  CLLocationManager  didUpdateLocations locations   CLLocation         let userLocation  CLLocation   locations 0  as CLLocation      print  user latitude     userLocation coordinate latitude        print  user longitude     userLocation coordinate longitude         self labelLat text      userLocation coordinate latitude       self labelLongi text      userLocation coordinate longitude        let geocoder   CLGeocoder       geocoder reverseGeocodeLocation userLocation     placemarks  error  in         if  error    nil               print  error in reverseGeocode                     let placemark   placemarks  as  CLPlacemark          if placemark count gt 0              let placemark   placemarks  0              print placemark locality               print placemark administrativeArea               print placemark country                self labelAdd text      placemark locality      placemark administrativeArea      placemark country                       func locationManager   manager  CLLocationManager  didFailWithError error  Error        print  Error   error        Now set permission for access the location  so add these key value into your info plist file    lt key gt NSLocationAlwaysUsageDescription lt  key gt   lt string gt Will you allow this app to always know your location  lt  string gt   lt key gt NSLocationWhenInUseUsageDescription lt  key gt   lt string gt Do you allow this app to know your current location  lt  string gt   lt key gt NSLocationAlwaysAndWhenInUseUsageDescription lt  key gt   lt string gt Do you allow this app to know your current location  lt  string gt      100  working without any issue  TESTED

User · Answer

Swift 3 0  If you don t want to show user location in map  but just want to store it in firebase or some where else then follow this steps   import MapKit import CoreLocation   Now use CLLocationManagerDelegate on your VC and you must override the last three methods shown below  You can see how the requestLocation   method will get you the current user location using these methods   class MyVc  UIViewController  CLLocationManagerDelegate      let locationManager   CLLocationManager     override func viewDidLoad         super viewDidLoad        isAuthorizedtoGetUserLocation        if CLLocationManager locationServicesEnabled             locationManager delegate   self         locationManager desiredAccuracy   kCLLocationAccuracyNearestTenMeters             if we have no permission to access user location  then ask user for permission  func isAuthorizedtoGetUserLocation          if CLLocationManager authorizationStatus       authorizedWhenInUse               locationManager requestWhenInUseAuthorization               this method will be called each time when a user change his location access preference  func locationManager   manager  CLLocationManager  didChangeAuthorization status  CLAuthorizationStatus        if status     authorizedWhenInUse           print  User allowed us to access location             do whatever init activities here               this method is called by the framework on         locationManager requestLocation    func locationManager   manager  CLLocationManager  didUpdateLocations locations   CLLocation         print  Did location updates is called         store the user location here to firebase or somewhere     func locationManager   manager  CLLocationManager  didFailWithError error  Error        print  Did location updates is called but failed getting location   error           Now you can code the below call once user sign in to your app  When requestLocation   is invoked it will further invoke didUpdateLocations above and you can store the location to Firebase or anywhere else   if CLLocationManager locationServicesEnabled                 locationManager requestLocation         if you are using GeoFire then in the didUpdateLocations method above you can store the location as below   geoFire  setLocation locations first  forKey  uid  where uid is the user id who logged in to the app  I think you will know how to get UID based on your app sign in implementation     Last but not least  go to your Info plist and enable  Privacy -Location when in Use Usage Description    When you use simulator to test it always give you one custom location that you configured in Simulator -  Debug -  Location

User · Answer

here is a copy-paste example that worked for me    http   swiftdeveloperblog com code-examples determine-users-current-location-example-in-swift   import UIKit import CoreLocation  class ViewController  UIViewController  CLLocationManagerDelegate        var locationManager CLLocationManager       override func viewDidLoad             super viewDidLoad              Do any additional setup after loading the view  typically from a nib             override func didReceiveMemoryWarning             super didReceiveMemoryWarning              Dispose of any resources that can be recreated             override func viewWillAppear   animated  Bool            super viewWillAppear animated           determineMyCurrentLocation               func determineMyCurrentLocation             locationManager   CLLocationManager           locationManager delegate   self         locationManager desiredAccuracy   kCLLocationAccuracyBest         locationManager requestAlwaysAuthorization            if CLLocationManager locationServicesEnabled                 locationManager startUpdatingLocation                 locationManager startUpdatingHeading                        func locationManager   manager  CLLocationManager  didUpdateLocations locations   CLLocation             let userLocation CLLocation   locations 0  as CLLocation             Call stopUpdatingLocation   to stop listening for location updates             other wise this function will be called every time when user location changes             manager stopUpdatingLocation            print  user latitude     userLocation coordinate latitude            print  user longitude     userLocation coordinate longitude               func locationManager   manager  CLLocationManager  didFailWithError error  Error                print  Error   error

User · Answer

Update for iOS 12 2 with Swift 5     you must add following privacy permissions in plist file    lt key gt NSLocationWhenInUseUsageDescription lt  key gt   lt string gt Description lt  string gt    lt key gt NSLocationAlwaysAndWhenInUseUsageDescription lt  key gt   lt string gt Description lt  string gt    lt key gt NSLocationAlwaysUsageDescription lt  key gt   lt string gt Description lt  string gt      Here is how I am      getting current location and showing on Map in Swift 2 0   Make sure you have added CoreLocation and MapKit framework to your project  This doesn t required with XCode 7 2 1   import Foundation import CoreLocation import MapKit  class DiscoverViewController   UIViewController  CLLocationManagerDelegate         IBOutlet weak var map  MKMapView      var locationManager  CLLocationManager       override func viewDidLoad                 super viewDidLoad            if  CLLocationManager locationServicesEnabled                          locationManager   CLLocationManager               locationManager delegate   self             locationManager desiredAccuracy   kCLLocationAccuracyBest             locationManager requestAlwaysAuthorization               locationManager startUpdatingLocation                        func locationManager manager  CLLocationManager  didUpdateLocations locations   CLLocation                  let location   locations last  as CLLocation          let center   CLLocationCoordinate2D latitude  location coordinate latitude  longitude  location coordinate longitude          let region   MKCoordinateRegion center  center  span  MKCoordinateSpan latitudeDelta  0 01  longitudeDelta  0 01            self map setRegion region  animated  true            Here is the result screen

User · Answer

its with strongboard   IBOutlet weak var mapView  MKMapView     12 9767415 77 6903967 - exact location latitude n longitude location  let cooridinate   CLLocationCoordinate2D latitude  12 9767415   longitude  77 6903967  let  spanDegree   MKCoordinateSpan latitudeDelta  0 2 longitudeDelta  0 2  let region   MKCoordinateRegion center  cooridinate   span  spanDegree  mapView setRegion region  animated  true

User · Answer

import CoreLocation import UIKit  class ViewController  UIViewController  CLLocationManagerDelegate        var locationManager  CLLocationManager       override func viewDidLoad             super viewDidLoad           locationManager   CLLocationManager           locationManager delegate   self         locationManager requestWhenInUseAuthorization               func locationManager   manager  CLLocationManager  didChangeAuthorization status  CLAuthorizationStatus            if status     authorizedWhenInUse  return          locationManager desiredAccuracy   kCLLocationAccuracyBest         locationManager startUpdatingLocation           let locValue  CLLocationCoordinate2D   manager location  coordinate         print  locations     locValue latitude    locValue longitude              Because the call to requestWhenInUseAuthorization is asynchronous  the app calls the locationManager function after the user has granted permission or rejected it   Therefore it is proper to place your location getting code inside that function given the user granted permission   This is the best tutorial on this I have found on it

User · Answer

Usage   Define field in class  let getLocation   GetLocation     Use in function of class by simple code   getLocation run       if let location    0           print  location     location coordinate latitude    location coordinate longitude          else           print  Get Location failed   getLocation didFailWithError              Class   import CoreLocation  public class GetLocation  NSObject  CLLocationManagerDelegate       let manager   CLLocationManager       var locationCallback    CLLocation   - gt  Void       var locationServicesEnabled   false     var didFailWithError  Error       public func run callback   escaping  CLLocation   - gt  Void            locationCallback   callback         manager delegate   self         manager desiredAccuracy   kCLLocationAccuracyBestForNavigation         manager requestWhenInUseAuthorization           locationServicesEnabled   CLLocationManager locationServicesEnabled           if locationServicesEnabled   manager startUpdatingLocation             else   locationCallback nil              public func locationManager   manager  CLLocationManager                           didUpdateLocations locations   CLLocation             locationCallback locations last           manager stopUpdatingLocation              public func locationManager   manager  CLLocationManager  didFailWithError error  Error            didFailWithError   error         locationCallback nil          manager stopUpdatingLocation              deinit           manager stopUpdatingLocation              Don t forget to add the  NSLocationWhenInUseUsageDescription  in the info plist

User · Answer

first add two frameworks in your project  1  MapKit  2  Corelocation  no longer necessary as of XCode 7 2 1   Define in your class  var manager CLLocationManager  var myLocations   CLLocation         then in viewDidLoad method code this  manager   CLLocationManager   manager desiredAccuracy   kCLLocationAccuracyBest manager requestAlwaysAuthorization   manager startUpdatingLocation      Setup our Map View mapobj showsUserLocation   true   do not forget to add these two value in plist file  1  NSLocationWhenInUseUsageDescription  2  NSLocationAlwaysUsageDescription

User · Answer

import Foundation import CoreLocation  enum Result lt T gt      case success T    case failure Error     final class LocationService  NSObject       private let manager  CLLocationManager      init manager  CLLocationManager    init              self manager   manager         super init           manager delegate   self            var newLocation    Result lt CLLocation gt   - gt  Void       var didChangeStatus    Bool  - gt  Void        var status  CLAuthorizationStatus           return CLLocationManager authorizationStatus              func requestLocationAuthorization             manager delegate   self         manager desiredAccuracy   kCLLocationAccuracyBest         manager requestWhenInUseAuthorization           if CLLocationManager locationServicesEnabled                 manager startUpdatingLocation                 locationManager startUpdatingHeading                        func getLocation             manager requestLocation              deinit           manager stopUpdatingLocation              extension LocationService  CLLocationManagerDelegate       func locationManager   manager  CLLocationManager  didFailWithError error  Error            newLocation   failure error           manager stopUpdatingLocation              func locationManager   manager  CLLocationManager  didUpdateLocations locations   CLLocation             if let location   locations sorted by    0 timestamp  gt   1 timestamp   first               newLocation   success location                     manager stopUpdatingLocation              func locationManager   manager  CLLocationManager  didChangeAuthorization status  CLAuthorizationStatus            switch status           case  notDetermined   restricted   denied              didChangeStatus  false          default              didChangeStatus  true                     Needs to write this code in required ViewController     NOTE   Add permission in info plist    NSLocationWhenInUseUsageDescription   let locationService   LocationService      IBAction func action AllowButtonTapped   sender  Any         didTapAllow        func didTapAllow          locationService requestLocationAuthorization        func getCurrentLocationCoordinates       locationService newLocation    result in      switch result         case  success let location         print location coordinate latitude  location coordinate longitude        case  failure let error         assertionFailure  quot Error getting the users location   error  quot               func getCurrentLocationCoordinates         locationService newLocation     result in         switch result           case  success let location               print location coordinate latitude  location coordinate longitude              CLGeocoder   reverseGeocodeLocation location  completionHandler    placemarks  error  - gt  Void in                 if error    nil                       print  quot Reverse geocoder failed with error quot     error  localizedDescription                        return                                   if  placemarks  count    gt  0                       print  quot placemarks quot   placemarks                       let pmark   placemarks  0                      self displayLocationInfo pmark                    else                       print  quot Problem with the data received from geocoder quot                                            case  failure let error               assertionFailure  quot Error getting the users location   error  quot

User · Answer

To get a user s current location you need to declare   let locationManager   CLLocationManager     In viewDidLoad   you have to instantiate the CLLocationManager class  like so      Ask for Authorisation from the User  self locationManager requestAlwaysAuthorization        For use in foreground self locationManager requestWhenInUseAuthorization    if CLLocationManager locationServicesEnabled         locationManager delegate   self     locationManager desiredAccuracy   kCLLocationAccuracyNearestTenMeters     locationManager startUpdatingLocation       Then in CLLocationManagerDelegate method you can get user s current location coordinates   func locationManager   manager  CLLocationManager  didUpdateLocations locations   CLLocation         guard let locValue  CLLocationCoordinate2D   manager location  coordinate else   return       print  locations     locValue latitude    locValue longitude        In the info plist you will have to add NSLocationAlwaysUsageDescription and your custom alert message like  AppName Demo App  would like to use your current location

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