code: public static double getToleranceDistance(View view, GoogleMap map) {
  
          BoundingBox boundingBox = getBoundingBox(map);
  
          double boundingBoxWidth = TileBoundingBoxMapUtils.getLongitudeDistance(boundingBox);
          double boundingBoxHeight = TileBoundingBoxMapUtils.getLatitudeDistance(boundingBox);
  
          int viewWidth = view.getWidth();
          int viewHeight = view.getHeight();
  
          double meters = 0;
  
          if (viewWidth > 0 && viewHeight > 0) {
  
              double widthMeters = boundingBoxWidth / viewWidth;
              double heightMeters = boundingBoxHeight / viewHeight;
  
              meters = Math.min(widthMeters, heightMeters);
          }
  
          return meters;
      }
docs: Get the tolerance distance meters in the current region of the map
  
  @param view view
  @param map  google map
  @return tolerance distance in meters