title: android google maps draw circle with fixed radius in pixels for each zoom level
body: <p><em>Sorry for my English</em></p>
  
  <p>In <code>Google Maps v2</code> current location's indicator (small blue point) has the same radius in pixels for each zoom level. How can I draw something like this on map but with different color (gradient) ? <em>I.e. with fixed radius.</em></p>