gistfile1.txt

using System;
using MonoTouch.Dialog;
using MonoTouch.UIKit;
using System.Drawing;
using MonoTouch.Foundation;
using MonoTouch.CoreAnimation;


public class ButtonElement : Element
{
	static NSString skey = new NSString ("ButtonElement");
	public UITextAlignment Alignment = UITextAlignment.Center;
	public event NSAction Tapped;
	public UIColor Color;
	public ButtonElement (string caption,UIColor color) : base (caption)
	{
		Color = color;
	}
	public ButtonElement (string caption,UIColor color, NSAction tapped) : base (caption)
	{
		Color = color;
		Tapped += tapped;
	}
			
	public override UITableViewCell GetCell (UITableView tv)
	{
		var cell = tv.DequeueReusableCell (skey) as ButtonCellView;
		if (cell == null)
			cell = new ButtonCellView(this);
		else
			cell.UpdateFrom(this);
		return cell;
	}

	public override string Summary ()
	{
		return Caption;
	}
	
	public override void Selected (DialogViewController dvc, UITableView tableView, NSIndexPath indexPath)
	{
		tableView.DeselectRow (indexPath, true);
	}
	
	public class ButtonCellView : UITableViewCell {
		UIGlassyButton btn;		
		ButtonElement parent;
				
		public ButtonCellView (ButtonElement element) : base (UITableViewCellStyle.Value1, skey)
		{
			parent = element;
			this.BackgroundColor = UIColor.Clear;
			btn = new UIGlassyButton(RectangleF.Empty);
			btn.Color = parent.Color;
			btn.Title = element.Caption;
			btn.TouchUpInside += delegate{
				if(parent.Tapped != null)
					parent.Tapped();
			};
			ContentView.Add (btn);
		} 
		public override void LayoutSubviews ()
		{
			
			base.LayoutSubviews ();
			btn.Frame = ContentView.Bounds;
		}
		
		public void UpdateFrom (ButtonElement element)
		{
			btn.Title = element.Caption;
			parent = element;
			btn.Color = element.Color;
		}
		
	}
}

public class UIGlassyButton : UIButton
{
	private bool _Initialized;

	public UIColor Color { get; set; }		
	public UIColor HighlightColor { get; set; }

	public string _Title = string.Empty;
	public new string Title 
	{ 
		get { return _Title; } 
		set 
		{ 
			_Title = value;

			SetNeedsDisplay();
		} 
	}
	
	public UIGlassyButton(RectangleF rect): base(rect)
	{
		Color = UIColor.FromRGB(88f, 170f, 34f);
		HighlightColor = UIColor.Black;
	}
	
	public void Init(RectangleF rect)
	{
		Layer.MasksToBounds = true;
		Layer.CornerRadius = 8;
		
		var gradientFrame = rect;
		
		var shineFrame = gradientFrame;
		shineFrame.Y += 1;
		shineFrame.X += 1;
		shineFrame.Width -= 2;
		shineFrame.Height = (shineFrame.Height / 2);

		var shineLayer = new CAGradientLayer();
		shineLayer.Frame = shineFrame;
		shineLayer.Colors = new MonoTouch.CoreGraphics.CGColor[] { UIColor.White.ColorWithAlpha (0.75f).CGColor, UIColor.White.ColorWithAlpha (0.10f).CGColor };
		shineLayer.CornerRadius = 8;
		
		var backgroundLayer = new CAGradientLayer();
		backgroundLayer.Frame = gradientFrame;
		backgroundLayer.Colors = new MonoTouch.CoreGraphics.CGColor[] { Color.ColorWithAlpha(0.99f).CGColor, Color.ColorWithAlpha(0.80f).CGColor };

		var highlightLayer = new CAGradientLayer();
		highlightLayer.Frame = gradientFrame;
		
		Layer.AddSublayer(backgroundLayer);
		Layer.AddSublayer(highlightLayer);
		Layer.AddSublayer(shineLayer);
	
		VerticalAlignment = UIControlContentVerticalAlignment.Center;
		Font = UIFont.BoldSystemFontOfSize (17);
		SetTitle (Title, UIControlState.Normal);
		SetTitleColor (UIColor.White, UIControlState.Normal);
		
		_Initialized = true;
	}

	public override void Draw(RectangleF rect)
	{
		base.Draw(rect);

		if(!_Initialized)
			Init(rect);

		var highlightLayer = Layer.Sublayers[1] as CAGradientLayer;
		
		if (Highlighted)
		{
			if (HighlightColor == UIColor.Blue) 
			{
				highlightLayer.Colors = new MonoTouch.CoreGraphics.CGColor[] { HighlightColor.ColorWithAlpha(0.60f).CGColor, HighlightColor.ColorWithAlpha(0.95f).CGColor };
			} 
			else 
			{
				highlightLayer.Colors = new MonoTouch.CoreGraphics.CGColor[] { HighlightColor.ColorWithAlpha(0.10f).CGColor, HighlightColor.ColorWithAlpha(0.40f).CGColor };
			}
			
		}
		
		highlightLayer.Hidden = !Highlighted;
	}
	
	public override bool BeginTracking(UITouch uitouch, UIEvent uievent)
	{
		if (uievent.Type == UIEventType.Touches)
		{
			SetNeedsDisplay();
		}

		return base.BeginTracking(uitouch, uievent); 
	}
	
	public override void EndTracking(UITouch uitouch, UIEvent uievent)
	{
		if (uievent.Type == UIEventType.Touches)
		{
			SetNeedsDisplay();
		}

		base.EndTracking(uitouch, uievent);
	}
}