I wanted to know if it was possible to share the same MKMapView variable in the whole project.
Since creating multiple instances is increasing memory considerably.
As soon as I open a new view controller with just a MapView, it adds 50Mb to memory. And when I dismiss that view controller it only drops about 10Mb.
It is possible to free all the memory of the mapview?. Or is it better to create a single MapView variable and be doing removeAnnotations to create annotations… every time change the map view
var mapview = MKMapView()
When dismiss viewcontroller I do this: (I don’t know if anything else is needed.)
mapView.removeAnnotations(AllAnnotations)
mapView.delegate = nil
mapView.removeFromSuperview()
>Solution :
Yes creating many items causes memory gets high even if deinit is called , so you make 1 global map
import MapKit
let map = MKMapView(frame:CGRect.zero)
and when you need to show it in a vc , add it to view with constraints and after leaving remove it