Google map loading issue iOS - ios

Question

I have integrated GoogleMap using pod in my project but map is not loading. When I make my mapViewController as a initial ViewController then its working fine.
But when I push or present MapViewController then its showing me the blank screen.
I am using XCode 9.1, my project deployment Target is 9.0 and Google Maps SDK for iOS version: 2.5.30219.0.
Thanks in Advance.
Here is my MapViewController code:
import UIKit
import GoogleMaps
class MapViewController: UIViewController {
#IBOutlet weak var mapView: GMSMapView!
override func viewDidLoad() {
super.viewDidLoad()
let camera = GMSCameraPosition.camera(withTarget: CLLocationCoordinate2DMake(18.486726, 73.798394), zoom: 10)
mapView.camera = camera
}
}
Console Log:
CoreData: annotation: Failed to load optimized model at path
/Users/pritamsing.salunkhe/Library/Developer/CoreSimulator/Devices/6DD7C0EA-320F-4E99-BEC9-672046198800/data/Containers/Bundle/Application/04CC747F-5B2D-4588-883A-E814D4EE0769/HimmatPlus.app/GoogleMaps.bundle/GMSCacheStorage.momd/StorageWithTileVersionID.omo

Answer 1

Don't use IBOutlet for googleMap in Storyboard & also Don't set subclass for GMSMapView.
implement your map by programmatically. Its will boost your Map UI faster
/// Google MapView
var mapView: GMSMapView!
self.mapView = GMSMapView(frame: CGRect(x: 0, y: 64, width: self.currentDeviceSize.width, height: self.bottomBgView.frame.minY - 64))
// self.mapView.autoresizingMask = [.flexibleBottomMargin, .flexibleTopMargin, .flexibleLeftMargin, .flexibleRightMargin]
self.mapView.settings.allowScrollGesturesDuringRotateOrZoom = true
// self.mapView.settings.myLocationButton = true //Enable My location button
// self.mapView.isTrafficEnabled = true //Enable traffic
// self.mapView.isBuildingsEnabled = true // Building Enable
// self.mapView.isMyLocationEnabled = true //My location Enabled
// let containerView: GMSMapView = self.mapView
self.view.addSubview(self.mapView)

Answer 2

Try with the proper implementation of Google map.
#IBOutlet weak var mapView: GMSMapView!
var locationManager = CLLocationManager()
override func viewDidLoad() {
super.viewDidLoad()
mapView.delegate = self
self.configureMap()
}
func configureMap(){
mapView.delegate = self
//Check for Location Services
if (CLLocationManager.locationServicesEnabled()) {
locationManager.delegate = self
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.distanceFilter = kCLDistanceFilterNone
locationManager.requestWhenInUseAuthorization()
}
if CLLocationManager.locationServicesEnabled() {
locationManager.startUpdatingLocation()
}
}
MapView Delegate method
//MARK:- MapView delegate
extension YourViewControllerName: GMSMapViewDelegate, CLLocationManagerDelegate{
//Location Manager delegates
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
let location = locations.last
let camera = GMSCameraPosition.camera(withLatitude: (location?.coordinate.latitude)!, longitude: (location?.coordinate.longitude)!, zoom: 12.0)
self.mapView?.animate(to: camera)
// To stop updating the location again
self.locationManager.stopUpdatingLocation()
}
func locationManager(_ manager: CLLocationManager, didFailWithError error: Error) {
print("error description:\(error.localizedDescription)")
}
}
Key In plist file.
<key>NSLocationWhenInUseUsageDescription</key>
<string>Your custom message.</string>