How to convert the bitmap to round corner bitmap in android ?

public Bitmap roundCornerImage(Bitmap src, float round) {
// Source image size
int width = src.getWidth();
int height = src.getHeight();
// create result bitmap output
Bitmap result = Bitmap.createBitmap(width, height, Config.ARGB_8888);
// set canvas for painting
Canvas canvas = new Canvas(result);
canvas.drawARGB(0, 0, 0, 0);

// configure paint
final Paint paint = new Paint();
paint.setAntiAlias(true);
paint.setColor(Color.BLACK);

// configure rectangle for embedding
final Rect rect = new Rect(0, 0, width, height);
final RectF rectF = new RectF(rect);

// draw Round rectangle to canvas
canvas.drawRoundRect(rectF, round, round, paint);

// create Xfer mode
paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
// draw source image to canvas
canvas.drawBitmap(src, rect, rect, paint);

// return final image
return result;
}