How to track user location across all view controllers in an ios app?

Question

I am building an app that tracks a users location while the app is open and query it with geofire. I would like to keep the location updating from any view controller the user may have open. I am wondering how to do this.

Currently, I have my geofire and location tracking set up in my main view controller. In order to have the location tracking working across all view controllers, do I have to code each individual view controller to track the location, or can I place the code into, for example, the app delegate file?

score 1 · Answer 1 · answered Jun 07 '19 at 08:44

Put it in app delegate.swift

let locationManager = CLLocationManager()


self.locationManager.requestAlwaysAuthorization() 

// For use in foreground
self.locationManager.requestWhenInUseAuthorization()

if CLLocationManager.locationServicesEnabled() {
    locationManager.delegate = self
    locationManager.desiredAccuracy = kCLLocationAccuracyNearestTenMeters
    locationManager.startUpdatingLocation()
}

//Here Get Late long.
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
    guard let locValue: CLLocationCoordinate2D = manager.location?.coordinate else { return }
    print("locations = \(locValue.latitude) \(locValue.longitude)")
}

The Pedestrian · Accepted Answer · 2019-06-07T04:34:43.897

0

You can place the code in AppDelegate. Maybe use a timer while hitting the server so that the performance is optimized

Refer this answer: Location Manager update frequency, iphone

edited Jun 07 '19 at 04:34

answered Jun 07 '19 at 04:20

The Pedestrian

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2
11

score 0 · Answer 3 · answered Jun 07 '19 at 04:31

may be this code will hleps but you have to use this in your all viewcontrollers

var LocationManager = CLLocationManager()
LocationManager.requestWhenInUseAuthorization()

if( CLLocationManager.authorizationStatus() == .authorizedWhenInUse ||
    CLLocationManager.authorizationStatus() ==  .authorizedAlways){

  print("currentLocation = \(LocationManager.location)")

 }

score 0 · Answer 4 · answered Jun 07 '19 at 04:50

Use HSLocationManager for infinite location tracking in the active and inactive state.

Location manager that allows getting background location updates every n seconds with desired location accuracy.

Advantage:

OS will never kill our app if the location manager is currently running.

Give periodically location update when it required(range is between 2 - 170 seconds (limited by max allowed background task time))

Customizable location accuracy and time period.

Low memory consumption(Singleton class)

Less battery draining.

How to track user location across all view controllers in an ios app?

4 Answers4