myLocationEnabled changing to isMyLocationEnabled on swift when using GoogleMaps - ios

Im trying to get a users current location to show with google maps API. I have been struggling with this issue for weeks and the code runs but doesn't update to current location when I change the location in the simulator.
My code is below and after looking how other people are doing it they all have mapView.myLocationEnabled = true whereas for me this produces an error saying 'myLocationEnabled has been renamed to 'isMylocationEnabled'. I've seen some up to date posts (from 2 months ago) and everyone is using myLocationEnabled without an error it seems, why am I getting this? could this be the reason why my current location is not updating?
import UIKit
import GoogleMaps
class FirstViewController: UIViewController, CLLocationManagerDelegate {
#IBOutlet weak var mapView: GMSMapView!
let locationManager = CLLocationManager()
override func viewDidLoad() {
super.viewDidLoad()
locationManager.delegate = self
mapView.settings.myLocationButton = true
mapView.settings.compassButton = true
}
override func viewDidAppear(_ animated: Bool) {
locationManager.requestWhenInUseAuthorization()
}
func locationManager(manager: CLLocationManager , didChangeAuthorizationStatus status: CLAuthorizationStatus) {
if status == .authorizedWhenInUse {
locationManager.startUpdatingLocation()
mapView.isMyLocationEnabled = true
mapView.settings.myLocationButton = true
}
}
func locationManager(manager: CLLocationManager ,didUpdateLocations locations: [CLLocation]) {
if let location = locations.first {
mapView.camera = GMSCameraPosition(target: location.coordinate, zoom: 15, bearing: 0, viewingAngle: 0)
let marker = GMSMarker()
marker.title = "Current Location"
marker.map = mapView
locationManager.stopUpdatingLocation()
}
}
}

SO I FINALLY SOLVED THIS! Basically I updated my existing Podfile with GoogleMaps and GooglePlaces and then updated pod to ensure all the frameworks are working. Then I used this code to get my current location to work
import UIKit
import GoogleMaps
class FirstViewController: UIViewController, CLLocationManagerDelegate {
#IBOutlet weak var mapView: GMSMapView!
var locationManager = CLLocationManager()
var vwGMap = GMSMapView()
override func viewDidLoad() {
super.viewDidLoad()
let camera: GMSCameraPosition = GMSCameraPosition.camera(withLatitude: 22.300000, longitude: 70.783300, zoom: 10.0)
vwGMap = GMSMapView.map(withFrame: self.view.frame, camera: camera)
vwGMap.camera = camera
locationManager.delegate = self
locationManager.desiredAccuracy = kCLLocationAccuracyKilometer
locationManager.distanceFilter = 500
locationManager.requestWhenInUseAuthorization()
locationManager.requestAlwaysAuthorization()
locationManager.startUpdatingLocation()
self.view = vwGMap
}
func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) {
if (status == CLAuthorizationStatus.authorizedWhenInUse)
{
vwGMap.isMyLocationEnabled = true
}
}
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
let newLocation = locations.last
vwGMap.camera = GMSCameraPosition.camera(withTarget: newLocation!.coordinate, zoom: 15.0)
vwGMap.settings.myLocationButton = true
self.view = self.vwGMap
let marker = GMSMarker()
marker.position = CLLocationCoordinate2DMake(newLocation!.coordinate.latitude, newLocation!.coordinate.longitude)
marker.map = self.vwGMap
}
}

Related

How to fix Thread 1: Fatal error: Unexpectedly found nil while implicitly unwrapping an Optional value?

I have a problem with the Users Location.
When im trying to build the program it gets this error code: (Thread 1: Fatal error: Unexpectedly found nil while implicitly unwrapping an Optional value)
My code:
import UIKit
import MapKit
class ViewController: UIViewController {
private let locationManager = CLLocationManager()
private var currentCoordinate: CLLocationCoordinate2D?
#IBOutlet weak var mapView: MKMapView!
override func viewDidLoad() {
super.viewDidLoad()
configerLocationServices()
}
private func configerLocationServices() {
locationManager.delegate = self
let status = CLLocationManager.authorizationStatus()
if status == .notDetermined {
locationManager.requestWhenInUseAuthorization()
} else if status == .authorizedAlways || status == .authorizedWhenInUse {
beginLocationUpdates(locationManager: locationManager)
}
}
private func beginLocationUpdates(locationManager: CLLocationManager) {
mapView.showsUserLocation = true //<--- the problem is here
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.startUpdatingLocation()
}
private func zoomToLastestLocation(with coordinate: CLLocationCoordinate2D) {
let zoomRegion = MKCoordinateRegion(center: coordinate, latitudinalMeters: 10000, longitudinalMeters: 10000)
mapView.setRegion(zoomRegion, animated: true)
}
}
extension ViewController: CLLocationManagerDelegate {
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
print("Did get latest Location")
guard let latestLocation = locations.first else { return }
if currentCoordinate == nil {
zoomToLastestLocation(with: latestLocation.coordinate)
}
currentCoordinate = latestLocation.coordinate
}
func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) {
print("The Status changed")
if status == .authorizedAlways || status == .authorizedWhenInUse {
self.beginLocationUpdates(locationManager: manager)
}
}
}
I don't know what im doing wrong, has anyone the solution?
Thank you in advance.
private func setNewLoaction(lat:CLLocationDegrees,long:CLLocationDegrees,markerTitle:String){
let center = CLLocationCoordinate2D(latitude: lat, longitude: long)
let camera = GMSCameraPosition.camera(withLatitude: lat, longitude: long, zoom: 15)
self.googleMapsView?.camera = camera
self.googleMapsView?.isMyLocationEnabled = true
let marker = GMSMarker(position: center)
marker.map = self.googleMapsView
marker.title = markerTitle
locationManager.stopUpdatingLocation()
}
//MARK:- MAP VIEW
private func setUpMap(){
locationManager.delegate = self
locationManager.requestWhenInUseAuthorization()
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.startUpdatingLocation()
self.googleMapsView = GMSMapView (frame: CGRect(x: 0, y: 0, width: self.view.frame.width-30, height: self.mapView.frame.height))
self.googleMapsView?.settings.compassButton = true
self.googleMapsView?.isMyLocationEnabled = true
self.googleMapsView?.settings.myLocationButton = true
self.mapView.addSubview(self.googleMapsView!)
}
I have called setUpMap in ViewDidload and this setLoaction function in GMSAutocompleteViewControllerDelegate =:
func viewController(_ viewController: GMSAutocompleteViewController, didAutocompleteWith place: GMSPlace) {
destinationField.text = place.formattedAddress
destinationLatitude = place.coordinate.latitude
destinationLongitutude = place.coordinate.longitude
setNewLoaction(lat: destinationLatitude!, long: destinationLongitutude!, markerTitle: "Destination Location")
dismiss(animated: true, completion: nil)
}
you can call this anywhere as per you need, do remember to turn on location when asked for permission and if using in simlulator go to Features/Loaction/custom Location
I have now an other code for the same thing it is shorter than the old one.
Here is the code:
import UIKit
import MapKit
import CoreLocation
class ViewController: UIViewController {
#IBOutlet var mapView: MKMapView!
let locationManager = CLLocationManager()
override func viewDidLoad() {
super.viewDidLoad()
locationManager.requestWhenInUseAuthorization()
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.distanceFilter = kCLDistanceFilterNone
locationManager.startUpdatingLocation()
mapView.showsUserLocation = true // <--- Crash
}
}
And now it gets the same problem as the old one :(

current location update on Google Maps SDK for Xcode not working

I have been trying to implement google maps in my application. The first step what I want to do is to simply get is:
1. Get the app to ask permission to use current location
2. Find the users current location and have a blue dot marker to mark it.
3. Update and centre the map around the users current location.
I have tried various methods to get this working but always end up with an error or doesn't work. Initially when I simulated the code below, it did come up with the dialog about requesting current location permission and a blue dot but in the following simulations this seems to have disappeared and when changing my current location in simulator (by going to edit schemes and changing default location) , the new current location did not update. I have a feeling that the code isn't working beyond viewDidLoad. where am I going wrong?
Please can I get some advice on how to rectify these problems and get the above points working (as well as the simulator to always ask for permission for current location). Currently the code runs with no errors but only shows me a map of the UK. (I have already added NSLocationWhenInUse and NSLocationAlwaysUsage.... into info.plist. And I have disabled all breakpoints. I have also tried resetting simulator)
import UIKit
import GoogleMaps
class FirstViewController: UIViewController,CLLocationManagerDelegate {
#IBOutlet weak var googlemaps: GMSMapView!
//this is the connection from the storyboard to the view controller
override func viewDidLoad() {
super.viewDidLoad()
let camera = GMSCameraPosition.camera(withLatitude: 51.508742, longitude: -0.087891, zoom: 8.0)
let viewMap = GMSMapView.map(withFrame: CGRect.zero, camera: camera)
view = viewMap
viewMap.isMyLocationEnabled = true
let locationManager = CLLocationManager()
locationManager.delegate = self
locationManager.requestWhenInUseAuthorization()
}
override func loadView() {
super.viewDidLoad()
func locationManager(manager: CLLocationManager, didChangeAuthorizationStatus status: CLAuthorizationStatus) {
// verification of granted permission while app in use
let locationManager = CLLocationManager()
let mapView = GMSMapView()
if status == .authorizedWhenInUse {
locationManager.startUpdatingLocation()
// if permission granted- starting updating location
mapView.isMyLocationEnabled = true
mapView.settings.myLocationButton = true
//this is suppose to be button that is added when tapped centers to users location
}
func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
if let location = locations.first {
mapView.camera = GMSCameraPosition.camera(withTarget: location.coordinate, zoom: 20)
self.view = mapView
locationManager.stopUpdatingLocation()
}
}
}
}
}
Thanks in advance! I have spent days trying to work this out with no success :(
I was able to solve this problem by updating Cocoapods and ensuring that GoogleMaps is in my Podfile. Then in my viewController I had the following code which executed perfectly.
import UIKit
import GoogleMaps
class FirstViewController: UIViewController, CLLocationManagerDelegate {
#IBOutlet weak var mapView: GMSMapView!
var locationManager = CLLocationManager()
var vwGMap = GMSMapView()
override func viewDidLoad() {
super.viewDidLoad()
let camera: GMSCameraPosition = GMSCameraPosition.camera(withLatitude: 22.300000, longitude: 70.783300, zoom: 10.0)
vwGMap = GMSMapView.map(withFrame: self.view.frame, camera: camera)
vwGMap.camera = camera
locationManager.delegate = self
locationManager.desiredAccuracy = kCLLocationAccuracyKilometer
locationManager.distanceFilter = 500
locationManager.requestWhenInUseAuthorization()
locationManager.startUpdatingLocation()
self.view = vwGMap
}
func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) {
if (status == CLAuthorizationStatus.authorizedWhenInUse)
{
vwGMap.isMyLocationEnabled = true
}
}
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
let newLocation = locations.last
vwGMap.camera = GMSCameraPosition.camera(withTarget: newLocation!.coordinate, zoom: 15.0)
vwGMap.settings.myLocationButton = true
self.view = self.vwGMap
let marker = GMSMarker()
marker.position = CLLocationCoordinate2DMake(newLocation!.coordinate.latitude, newLocation!.coordinate.longitude)
marker.map = self.vwGMap
}
}

Fatal error upon building maps app ios

Getting an error, I've been searching all day on how to use Corelocation along with GoogleMaps. thought I already had it when i got an error at the GMScameraposition part of the code. basically i'm trying to get my location upon loading the view which is why most is within the viewdidload().
import UIKit
import GoogleMaps
import CoreLocation
class ViewController: UIViewController, CLLocationManagerDelegate {
var locationManager: CLLocationManager!
var currentLocation: CLLocation!
var long: Float64!
var lat: Float64!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
locationManager = CLLocationManager()
locationManager.delegate = self;
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.requestAlwaysAuthorization()
locationManager.startUpdatingLocation()
let camera = GMSCameraPosition.cameraWithLatitude(lat,
longitude: long, zoom:6)
let mapView = GMSMapView.mapWithFrame(CGRectZero, camera:camera)
let marker = GMSMarker()
marker.position = camera.target
marker.snippet = "Hello World"
marker.appearAnimation = kGMSMarkerAnimationPop
marker.map = mapView
self.view = mapView
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
currentLocation = locations.last! as CLLocation
long = currentLocation.coordinate.longitude;
lat = currentLocation.coordinate.latitude;
}
}
Your view loads before you have an updated location to fill your variables, so it's as you said in your comment, your long and lat variables have no value.
I wrote out the fixed viewDidLoad and didUpdateLocations functions for you here:
override func viewDidLoad() {
super.viewDidLoad()
locationManager = CLLocationManager()
locationManager.delegate = self;
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.requestAlwaysAuthorization()
locationManager.startUpdatingLocation()
let camera = GMSCameraPosition.cameraWithLatitude(0,
longitude: 0, zoom:0) //this can be set to wherever you want your view to start at
//UPDATE: changed the initializing frame to be equal to the view, instead of CGRectZero
let mapView = GMSMapView.mapWithFrame(self.view.frame, camera:camera)
let marker = GMSMarker()
marker.position = camera.target
marker.snippet = "Hello World"
marker.appearAnimation = kGMSMarkerAnimationPop
marker.map = mapView
self.view = mapView
}
//updated! This will tell your camera to snap to your latest location once you've received it.
func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
currentLocation = locations.last
mapView.camera = GMSCameraPosition(target: currentLocation.coordinate, zoom: 6, bearing: 0, viewingAngle: 0)
}
}
Let me know if this works out for you.

Current Location in Google Maps with swift

I'm trying to display the user's current location on a google map but in the case below, the map doesn't even get displayed. What should I change to fix this?
var locationManager = CLLocationManager()
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
//user location stuff
locationManager.delegate = self
locationManager.requestWhenInUseAuthorization()
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.startUpdatingLocation()
}
func locationManager(manager: CLLocationManager, didFailWithError error: NSError) {
print("Error" + error.description)
}
func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
let userLocation = locations.last
let center = CLLocationCoordinate2D(latitude: userLocation!.coordinate.latitude, longitude: userLocation!.coordinate.longitude)
let camera = GMSCameraPosition.cameraWithLatitude(userLocation!.coordinate.latitude,
longitude: userLocation!.coordinate.longitude, zoom: 8)
let mapView = GMSMapView.mapWithFrame(CGRectZero, camera: camera)
mapView.myLocationEnabled = true
self.view = mapView
let marker = GMSMarker()
marker.position = center
marker.title = "Current Location"
marker.snippet = "XXX"
marker.map = mapView
locationManager.stopUpdatingLocation()
}
You can try this bellow code its working fine
import UIKit
import GoogleMaps
import GooglePlaces
class SearchMapsViewController: UIViewController,
UINavigationBarDelegate, GMSAutocompleteFetcherDelegate,
LocateOnTheMap, UISearchBarDelegate, CLLocationManagerDelegate
{
#IBOutlet var googleMapsContainerView: UIView!
var searchResultController: SearchResultsController!
var resultsArray = [String]()
var googleMapsView:GMSMapView!
var gmsFetcher: GMSAutocompleteFetcher!
var locationManager = CLLocationManager()
override func viewDidAppear(animated: Bool) {
locationManager.delegate = self
locationManager.requestWhenInUseAuthorization()
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.startUpdatingLocation()
self.googleMapsView = GMSMapView (frame: self.googleMapsContainerView.frame)
self.googleMapsView.settings.compassButton = true
self.googleMapsView.myLocationEnabled = true
self.googleMapsView.settings.myLocationButton = true
self.view.addSubview(self.googleMapsView)
searchResultController = SearchResultsController()
searchResultController.delegate = self
gmsFetcher = GMSAutocompleteFetcher()
gmsFetcher.delegate = self
}
func locationManager(manager: CLLocationManager, didFailWithError error: NSError)
{
print("Error" + error.description)
}
func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation])
{
let userLocation = locations.last
let center = CLLocationCoordinate2D(latitude: userLocation!.coordinate.latitude, longitude: userLocation!.coordinate.longitude)
let camera = GMSCameraPosition.cameraWithLatitude(userLocation!.coordinate.latitude, longitude: userLocation!.coordinate.longitude, zoom: 15);
self.googleMapsView.camera = camera
self.googleMapsView.myLocationEnabled = true
let marker = GMSMarker(position: center)
print("Latitude :- \(userLocation!.coordinate.latitude)")
print("Longitude :-\(userLocation!.coordinate.longitude)")
marker.map = self.googleMapsView
marker.title = "Current Location"
locationManager.stopUpdatingLocation()
}
do requier setting on infoPlist and then try this
#IBOutlet weak var your "name of view which show map": GMSMapView!
override func viewDidLoad(){
super.viewDidLoad()
placesClient = GMSPlacesClient.shared()
locationManager.requestAlwaysAuthorization()
if CLLocationManager.locationServicesEnabled(){
locationManager.delegate = self
locationManager.desiredAccuracy = kCLLocationAccuracyKilometer
locationManager.distanceFilter = 500
locationManager.requestWhenInUseAuthorization()
locationManager.requestAlwaysAuthorization()
locationManager.startUpdatingLocation()
}
mapView.settings.myLocationButton = true
mapView.settings.zoomGestures = true
mapView.animate(toViewingAngle: 45)
mapView.delegate = self }
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
let newLocation = locations.last // find your device location
mapView.camera = GMSCameraPosition.camera(withTarget: newLocation!.coordinate, zoom: 14.0) // show your device location on map
mapView.settings.myLocationButton = true // show current location button
var lat = (newLocation?.coordinate.latitude)! // get current location latitude
var long = (newLocation?.coordinate.longitude)! //get current location longitude
}
The problem is that you are setting the mapView's frame to CGRectZero. This causes the map to have zero height and zero width, no wonder it does not show!
Try setting it to CGRectMake(0,0,200,200) for example, this will give you a map at the left top of the screen with a size of 200 x 200.
I have never used Swift before, so the syntax might be a little different for CGRectMake()
It seems that your creation of the map isn't in your viewDidLoad function. You may want to try moving that there and see what happens.
Add the appropriate properties into the info.plist.
You should put make sure you have the NS properties of locationalwaysusagedescription and wheninuseusagedescription in the information properties list. This allows for the permissions of the current location to be asked.
import UIKit
import GoogleMaps
import GooglePlaces
import CoreLocation
class MapsViewController: UIViewController, CLLocationManagerDelegate, GMSMapViewDelegate {
var mapView = GMSMapView()
var locationManager = CLLocationManager()
let marker = GMSMarker()
override func viewDidLoad(){
super.viewDidLoad()
mapView.frame = self.view.bounds
self.view.addSubview(mapView)
locationManager.requestAlwaysAuthorization()
if CLLocationManager.locationServicesEnabled(){
locationManager.delegate = self
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.distanceFilter = 10
locationManager.requestWhenInUseAuthorization()
locationManager.requestAlwaysAuthorization()
locationManager.startUpdatingLocation()
}
mapView.settings.myLocationButton = true
mapView.settings.zoomGestures = true
mapView.animate(toViewingAngle: 45)
mapView.delegate = self
}
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
let newLocation = locations.last // find your device location
mapView.camera = GMSCameraPosition.camera(withTarget: newLocation!.coordinate, zoom: 14.0) // show your device location on map
mapView.settings.myLocationButton = true // show current location button
let lat = (newLocation?.coordinate.latitude)! // get current location latitude
let long = (newLocation?.coordinate.longitude)! //get current location longitude
marker.position = CLLocationCoordinate2DMake(lat,long)
marker.map = mapView
print("Current Lat Long - " ,lat, long )
}
func mapView(_ mapView: GMSMapView, didTapAt coordinate: CLLocationCoordinate2D) {
mapView.clear()
DispatchQueue.main.async {
let position = CLLocationCoordinate2D(latitude: coordinate.latitude, longitude: coordinate.longitude)
self.marker.position = position
self.marker.map = mapView
self.marker.icon = UIImage(named: "default_marker")
print("New Marker Lat Long - ",coordinate.latitude, coordinate.longitude)
}
}
}

Swift + CLLocationManager: How to tell if the user is in a specific city?

I use CLLocationManager to request the user's location. However, if they are outside of New York City, I want to default to certain coordinates. Is there a way to check if they are in a certain city?
import UIKit
import CoreLocation
import GoogleMaps
private let kDefaultLatitude: Double = 40.713
private let kDefaultLongitude: Double = -74.000
private let kDefaultZoomLevel: Float = 16.0
class RootMapViewController: UIViewController {
#IBOutlet weak var mapView: GMSMapView!
let locationManager = CLLocationManager()
override func viewDidLoad() {
super.viewDidLoad()
fetchLocation()
}
private func fetchLocation() {
locationManager.delegate = self
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.requestWhenInUseAuthorization()
locationManager.startUpdatingLocation()
}
}
// MARK: CLLocationManagerDelegate
extension RootMapViewController: CLLocationManagerDelegate {
func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
locationManager.stopUpdatingLocation()
let userCoordinates = locations[0].coordinate
// How do I check if the user is in NYC?
// if user is in nyc
centerMapOn(userCoordinates)
mapView.myLocationEnabled = true
mapView.settings.myLocationButton = true
// else default to Times Square
}
}
You can use reverse geocoding. For example you can place:
geocoder:CLGeocoder = CLGeocoder()
geocoder.reverseGeocodeLocation(locations[0],completionHandler{
if error == nil && placemarks.count > 0 {
let location = placemarks[0] as CLPlacemark
print(location.locality)
})
in func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation])

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