Setting max zoom level in google maps android api v2

Question

I\'m currently working on developing apps by using Google maps android API v2. My code is as follows. Suppose map has several markers and zoom up to show all markers in disp

Answer 1

Same as Arvis solution but using Location's [distanceBetween()](http://developer.android.com/reference/android/location/Location.html#distanceBetween(double, double, double, double, float[])) method to calculate distance between to points:

@Override
public void zoomToMarkers(Set markers) {

    LatLngBounds.Builder builder = new LatLngBounds.Builder();
    for (Marker marker : markers) {
        builder.include(marker.getPosition());
    }
    LatLngBounds bounds = builder.build();

    // Calculate distance between northeast and southwest
    float[] results = new float[1];
    android.location.Location.distanceBetween(bounds.northeast.latitude, bounds.northeast.longitude,
            bounds.southwest.latitude, bounds.southwest.longitude, results);

    CameraUpdate cu = null;
    if (results[0] < 1000) { // distance is less than 1 km -> set to zoom level 15
        cu = CameraUpdateFactory.newLatLngZoom(bounds.getCenter(), 15);
    } else {
        int padding = 50; // offset from edges of the map in pixels
        cu = CameraUpdateFactory.newLatLngBounds(bounds, padding);
    }
    if (cu != null) {
        mMap.moveCamera(cu);
    }
}