private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h,
            float scale, int multiplyColor) {
        if (bitmap != null) {
            Canvas c = new Canvas(bitmap);
            c.scale(scale, scale);
            Rect oldBounds = d.copyBounds();
            d.setBounds(x, y, x + w, y + h);
            d.draw(c);
            d.setBounds(oldBounds); // Restore the bounds
            if (multiplyColor != 0xFFFFFFFF) {
                c.drawColor(mDragViewMultiplyColor, PorterDuff.Mode.MULTIPLY);
            }
            c.setBitmap(null);
            c = null;
        }
    }