title: Mapview getLatitudeSpan and getLongitudeSpan not working
body: <p>Sometimes when trying to get the Latitude span or Longitude span of a mapview with getLatitudeSpan() and getLongitudeSpan() I get 0 and 360*1E6 respectively. This doesn't happen always but it is a problem, has anybody got this problem? Any workarounds? I tried using getProjection() too but I get the same problem. Here is the piece of code:</p>
  
  <pre><code>MapView mapView = (MapView) findViewById(R.id.mapview);
  int lat = mapView.getLatitudeSpan(); // sometimes returns 0
  int long = mapView.getLongitudeSpan(); // sometimes returns 360*1E6
  </code></pre>