BigTed.ProgressHUD.Draw C# (CSharp) Method

        public override void Draw(CGRect rect)
        {
            using (var context = UIGraphics.GetCurrentContext ()) {
                switch (_maskType) {
                case MaskType.Black:
                    UIColor.FromWhiteAlpha (0f, 0.5f).SetColor ();
                    context.FillRect (Bounds);
                    break;
                case MaskType.Gradient:
                    nfloat[] colors = new nfloat[] { 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.75f };
                    nfloat[] locations = new nfloat[] { 0.0f, 1.0f };
                    using (var colorSpace = CGColorSpace.CreateDeviceRGB ()) {
                        using (var gradient = new CGGradient (colorSpace, colors, locations)) {
                            var center = new CGPoint (Bounds.Size.Width / 2, Bounds.Size.Height / 2);
                            float radius = Math.Min ((float)Bounds.Size.Width, (float)Bounds.Size.Height);
                            context.DrawRadialGradient (gradient, center, 0, center, radius, CGGradientDrawingOptions.DrawsAfterEndLocation);
                        }
                    }

                    break;
                }
            }
        }