Java: Scale Mapsforge Map when using online bitmap tiles instead of offline renderer

As per this documentaion,(Read Specifying the Position section) you can specify area to display and at what zoom level.

this.mapView.setCenter(new LatLong(52.517037, 13.38886));
this.mapView.setZoomLevel((byte) 12);

Above solution will work as it is provided in official documentation.

Apart from this I have also searched regarding this and find out we can also set MapPosition to MapViewPosition like(See this link).

MapPosition mapPosition1 = new MapPosition(new LatLong(52.517037, 13.38886), (byte) 12);
this.mapView.getModel().mapViewPosition.setMapPosition(mapPosition1);

Hope this will help you.