Android Maps v2 - animate camera to include most markers

Question

I have a set of points coming from a webservice that need to be displayed on a map.

I have a current solution working nicely for most cases, using the well-known LatLngBounds.Builder, CameraUpdateFactory.newLatLngBounds and map.animateCamera.

I have some cases which give problems though: when the points are too far away, the map centers on max zoom level on the barycenter of those points. For example: I have 10 points in France and 2 points in Hawai. Maps centers more or less on the caribeans at min zoom level. Hence on screen I got nothing shown, the user has to scroll to actually see something is there.

So my question is:

is there a way to get the map to zoom out far enough so that I can see all points (that would be prefered)

Or: which would be the best way to filter out those cases where just a few points are very far away from the majority and pick a set of point to zoom on (in my example, I would choose to zoom on the 10 points in France and forget about the ones in Hawai).

Answer 1

Put all the LatLng of the markers in the list and pass them to this method and at the last line in the newLatLngBounds(bounds, 50)) the 50 represent the padding between the map edge and the most outer marker in each side

public void centerIncidentRouteOnMap(List<LatLng> copiedPoints) {
        double minLat = Integer.MAX_VALUE;
        double maxLat = Integer.MIN_VALUE;
        double minLon = Integer.MAX_VALUE;
        double maxLon = Integer.MIN_VALUE;
        for (LatLng point : copiedPoints) {
            maxLat = Math.max(point.latitude, maxLat);
            minLat = Math.min(point.latitude, minLat);
            maxLon = Math.max(point.longitude, maxLon);
            minLon = Math.min(point.longitude, minLon);
        }
        final LatLngBounds bounds = new LatLngBounds.Builder().include(new LatLng(maxLat, maxLon)).include(new LatLng(minLat, minLon)).build();
        mapFragment.animateCamera(CameraUpdateFactory.newLatLngBounds(bounds, 50));
    }