private void SetFavoriteButton()
        {
            var favoriteButton = new UIButton(UIButtonType.Custom);

            favoriteButton.Frame = new RectangleF(280, 10, 30, 30);
            favoriteButton.SetImage(new UIImage("*****@*****.**"), UIControlState.Normal);
            favoriteButton.TouchDown += (object sender, EventArgs e) =>
            {
                nfloat r, g, b, a;
                var    newColor = UIColor.FromRGB(_hsbView.Red, _hsbView.Green, _hsbView.Blue);
                newColor.GetRGBA(out r, out g, out b, out a);

                var count     = _favoriteColorManager.List().Count;
                var colorName = string.Format("{0}_{1}_{2}_{3}", count + 1, r, g, b);
                _favoriteColorManager.Add(colorName);
            };

            View.AddSubview(favoriteButton);
        }
        private void SetFavoriteButton()
        {
            var favoriteButton = new UIButton(UIButtonType.Custom)
            {
                Frame = new RectangleF(280, 10, 30, 30)
            };

            favoriteButton.SetImage(new UIImage("*****@*****.**"), UIControlState.Normal);
            favoriteButton.TouchDown += (object sender, EventArgs e) =>
            {
                var newColor = UIColor.FromRGB(_hsbView.Red, _hsbView.Green, _hsbView.Blue);
                newColor.GetRGBA(out var r, out var g, out var b, out _);

                var count     = _favoriteColorManager.List().Count;
                var colorName = $"{count + 1}_{r}_{g}_{b}";
                _favoriteColorManager.Add(colorName);
            };

            View.AddSubview(favoriteButton);
        }