get boundaries longitude and latitude from current zoom google maps

In Android, you can find out corner LatLng (northeast, southwest) by this way, in the map, every time the camera listen(means gesture detect) they are called,

private var mapView: GoogleMap? = null

............

    mapView?.setOnCameraMoveStartedListener { reasonCode ->
        if (reasonCode == GoogleMap.OnCameraMoveStartedListener.REASON_GESTURE) {
            val screenView: LatLngBounds =  mapView.getProjection().getVisibleRegion().latLngBounds
            var northeast=screenView.northeast
            var southwest=screenView.southwest
            var center=screenView.center
            
            
            Log.v("northeast LatLng","-:"+northeast)// LatLng of the north-east Screen
            Log.v("southwest LatLng","-:"+southwest)// LatLng of the south-west Screen
            Log.v("center LatLng","-:"+center)// LatLng of the center Screen
        }
    }

**this is mapbox zoom example**
 map.on('zoom', (el) => {
        map.getBounds();
    });