Android: Setting Zoom Level in Google Maps to include all Marker points

Question

I am trying to set zoom level for Maps in android such that it includes all the points in my list. I am using following code.

int minLatitude = Integer.MAX_VALU         


        

Answer 1

Yet another approach with Android Map API v2:

private void fixZoom() {
    List<LatLng> points = route.getPoints(); // route is instance of PolylineOptions 

    LatLngBounds.Builder bc = new LatLngBounds.Builder();

    for (LatLng item : points) {
        bc.include(item);
    }

    map.moveCamera(CameraUpdateFactory.newLatLngBounds(bc.build(), 50));
}

Answer 2

I found out the answer myself, the Zoom level was correct. I need to add following code to display all points on screen.

objMapController.animateTo(new GeoPoint( 
    (maxLatitude + minLatitude)/2, 
    (maxLongitude + minLongitude)/2 )); 

The center point was not propery aligned creating problem for me. This works.

Answer 3

Part of the problem could be that MIN_VALUE is still a positive number, but latitudes and longitudes can be negative numbers. Try using NEGATIVE_INFINITY instead of MIN_VALUE.