Moving Map Under the Marker in Mapbox iOS SDK

Question

I am new in MapBox iOS SDK and I need to add a marker in the center of MGLMapView so that user would be able to move map view under the marker and the marker would be fix on the screen. I also need to get the coordinate of the point in the map that is under the marker. I could not find any method in Mapbox SDK and I have no idea how to do that.

Answer 1

I believe this is quite easy. Add an image of a marker on top of the map to give the visual effect so the user can still scroll around without moving the marker. Then you can get the center coordinates usually quite easily using mapView.centerCoordinate when the user stops scrolling.

Here is the API documentation link for reference

Answer 2

I had done something like this in one of my apps

1) Add map to UIViewController

2) Add a Transparent view on top of the map in UIViewController. (May need to set userInteractionEnabled to false. Not sure though!)

3) Add marker image to the Transparent view so that its bottom tip is at the center of the view it is added to.

4) Get center coordinates by using mapView.centerCoordinate

Answer 3

For other people who have this issue too:

let markerImageView = UIImageView(image: UIImage(named: "Orange"))
markerImageView.center = mapView.center
mapView.addSubview(markerImageView)