How to fit bounds for coordinate array with google maps sdk for iOS?

Question

How to fit bounds for coordinate array with google maps sdk for iOS? I need to zoom map for 4 visible markers.

Answer 1

Swift 5 version of Lirik's answer:

    func focusMapToShowAllMarkers() {

        if arrMarkers.count > 0 {
            let firstLocation = (arrMarkers.first!).position
            var bounds = GMSCoordinateBounds(coordinate: firstLocation, coordinate: firstLocation)

            for marker in arrMarkers {
              bounds = bounds.includingCoordinate(marker.position)
            }

           let update = GMSCameraUpdate.fit(bounds, withPadding: CGFloat(15))
           self.mapView.animate(with: update)
        }
    }