Cannot constantly update location on iOS xcode project - ios

Question

I am trying to create a mock up app that shows the campus of my school. I want to be able to search through the campus and then click the location button to have the screen follow my location. Check video below to understand my issue. My code is proprietary as i am brand new to swift and xcode. I am not using the story board, just programatically creating this app. When i do get the location to consistently update my location and follow my simulation location, it tears down the view and rebuilds it, which leads to it looking very glitchy. Also, i cannot break the update by changing moving the camera somewhere else. Im sure im missing something quite big. To make as much sense as possible, i want to be able to follow the location on screen in a smooth look, as well as stop the updating location so that can search the campus without my screen updating to my current location.
video link: [https://www.dropbox.com/s/op2kw9sfk0c8dm5/Xcode%20problem.mp4?dl=0][1]
here is my code:
import UIKit
import GoogleMaps
import CoreLocation
class ViewController: UIViewController, CLLocationManagerDelegate, GMSMapViewDelegate{
lazy var mapView = GMSMapView()
var locationManager = CLLocationManager()
override func viewDidLoad() {
super.viewDidLoad()
GMSServices.provideAPIKey("AIzaSyBXEZf5gq-ewIjmlzyWlsDHJSsOTsHCm4k")
let camera = GMSCameraPosition.camera(withLatitude: 35.046462, longitude: -85.298153, zoom: 15.8, bearing: 295, viewingAngle: 0)
mapView = GMSMapView.map(withFrame: CGRect.zero, camera: camera)
mapView.mapType = .satellite
//view = mapView
//User Location
locationManager.delegate = self
locationManager.requestWhenInUseAuthorization()
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.startUpdatingLocation()
locationManager.stopUpdatingLocation()
view = mapView
}
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
let location = locations[0]
let camera = GMSCameraPosition.camera(withLatitude: location.coordinate.latitude, longitude: location.coordinate.longitude, zoom: 15.8, bearing: 295, viewingAngle: 0)
mapView = GMSMapView.map(withFrame: CGRect.zero, camera: camera)
mapView.mapType = .satellite
mapView.isMyLocationEnabled = true
mapView.settings.myLocationButton = true
showMarker(position: CLLocationCoordinate2D.init(latitude: 35.046462, longitude: -85.298153), markerTitle: "Cardiac Hill", markerSnippet: "UTC")
showMarker(position: CLLocationCoordinate2D.init(latitude: 35.047488, longitude: -85.300121), markerTitle: "Library", markerSnippet: "UTC")
view = mapView
}
func showMarker(position: CLLocationCoordinate2D, markerTitle: String, markerSnippet: String){
let marker = GMSMarker()
marker.position = position
marker.title = "\(markerTitle)"
marker.snippet = "\(markerSnippet)"
marker.tracksViewChanges = true
marker.opacity = 0.75
marker.icon = GMSMarker.markerImage(with: .white)
marker.map = mapView
}
func markerInfo(_ mapView: GMSMapView, markerInfoWindow marker: GMSMarker) -> UIView? {
var view = UIView(frame: CGRect.init(x: 0, y: 0, width: 200, height: 70))
view.backgroundColor = UIColor.white
view.layer.cornerRadius = 6
let lbl1 = UILabel(frame: CGRect.init(x: 8, y: 8, width: view.frame.size.width - 16, height: 15))
lbl1.text = "Cardiac label"
view.addSubview(lbl1)
let lbl2 = UILabel(frame: CGRect.init(x: lbl1.frame.origin.x, y: lbl1.frame.origin.y + lbl1.frame.origin.y + 3, width: view.frame.size.width - 16, height: 15))
lbl1.text = "lbl2 info"
view.addSubview(lbl2)
return view
}
}
Thank you for your time, I will be sure to check this almost everyday to respond to any addition information needed. PS, i already did api and sdk importing, as well as added info into info.plist. I seem to get everything to work but this issue.