How to use

metersToEquatorPixels

method

in

com.google.android.gms.maps.Projection

 Projection projection = mapView.getProjection();
Point center = projection.toPixels(new GeoPoint(yourLat * E6, yourLong * E6), null);
float radius = projection.metersToEquatorPixels(radiusInMeters);
canvas.draw(center.x, center.y, radius, new Paint());

 private void drawCircleAtPoint(GeoPoint point, Canvas canvas, MapView mapView) {

    Projection projection = mapView.getProjection();        
    Point pt2 = new Point();
    projection.toPixels(point, pt2);
// method that is used to conver the radius to pixel that takes input the radius and draw it on the coresponding pixels 
    float circleRadius = projection.metersToEquatorPixels(radius) * (1/ FloatMath.cos((float) Math.toRadians(MapController.mylat)));
    Paint circlePaint = new Paint(Paint.ANTI_ALIAS_FLAG);
    Paint rectangle=new Paint(Paint.ANTI_ALIAS_FLAG);
    Log.d("Circular Radius", ""+circleRadius+"             "+radius);

    circlePaint.setColor(0x99000000);
    circlePaint.setStyle(Style.STROKE);
    canvas.drawCircle((float)pt2.x, (float)pt2.y, circleRadius, circlePaint);




  }

 @Override
public void draw(Canvas canvas, MapView mapView, boolean shadow)
{
    Projection proj = mapView.getProjection();
    GeoPoint loc = new GeoPoint(geo.getLat(), geo.getLng());

    Point point = new Point();
    proj.toPixels(loc, point);
    float rad = (float) (proj.metersToEquatorPixels(radius) * (1 / Math.cos(Math.toRadians(loc.getLatitudeE6() / 1000000))));

    Paint circle = new Paint();
    circle.setColor(colour);
    circle.setAlpha(30);
    circle.setAntiAlias(true);
    circle.setStyle(Style.FILL);

    canvas.drawCircle(point.x, point.y, rad, circle);

    super.draw(canvas, mapView, shadow);

}

Point point = new Point();
projection.toPixels(mOverlays.get(GPS_DETECTED_GP_INDEX).getPoint(), point);
float circleRadius = (float)         (projection.metersToEquatorPixels
(Departure.MAX_DISTANCE_gps_dep) * (1/
Math.cos(Math.toRadians(mOverlays.

float circleRadius = projection.metersToEquatorPixels(mRadius) * (1/ FloatMath.cos((float) Math.toRadians(mLat)));

float circleRadius = projection.metersToEquatorPixels(mRadius);

float circleRadius = projection.metersToEquatorPixels(mRadius) * (1/ FloatMath.cos((float) Math.toRadians(mLat)));

float circleRadius = projection.metersToEquatorPixels((float)accuracy);