MonoTouch helper class for UIPasteboard

ClipboardHelper.cs

using System;
using MonoTouch.UIKit;
using MonoTouch.Foundation;

namespace Clipboard {
	public static class ClipboardHelper {
		/// <summary>
		/// Inserts HTML to clipboard, so you can paste into Mail.app
		/// </summary>
		/// <remarks>
		/// Ported from http://mcmurrym.wordpress.com/2010/08/13/pasting-simplehtml-into-the-mail-app-ios/ by 
		/// Bill Holmes [email protected] on [email protected]
		/// Plus stackoverflow.com questions:
		/// http://stackoverflow.com/questions/6566152/ios-how-to-copy-html-into-the-cut-paste-buffer
		/// http://stackoverflow.com/questions/1034509/copy-and-paste-on-iphone-with-multiple-data-representations/1078471#1078471
		/// </remarks>
		/// <param name='html'>
		/// Pass in the HTML fragment to copy to clipboard
		/// </param>
		/// <param name='text'>
		/// Text version of the data to be put on the clipboard (for notepad and plain UITextViews)
		/// </param> 
		public static void AddToClipboard (string html, string text) 
		{
			Console.WriteLine (@"Place HTML on the pasteboard");
			
			UIPasteboard pasteboard = UIPasteboard.General;
			
			// Uniform Type Identifiers Reference
			// https://developer.apple.com/library/ios/#documentation/Miscellaneous/Reference/UTIRef/Articles/System-DeclaredUniformTypeIdentifiers.html
			string htmlType = @"Apple Web Archive pasteboard type";
			string textType = @"public.utf8-plain-text";


			// HTML payload
			NSString htmlString = new NSString (html);
			NSMutableDictionary resourceDictionary = new NSMutableDictionary ();
			resourceDictionary.Add (new NSString ("WebResourceData"), htmlString.Encode (NSStringEncoding.UTF8));
			resourceDictionary.Add (new NSString ("WebResourceFrameName"), new NSString (""));
			resourceDictionary.Add (new NSString ("WebResourceMIMEType"), new NSString ("text/html"));
			resourceDictionary.Add (new NSString ("WebResourceTextEncodingName"), new NSString ("UTF-8"));
			resourceDictionary.Add (new NSString ("WebResourceURL"), new NSString ("about:blank"));
			
			NSDictionary containerDictionary = NSDictionary.FromObjectsAndKeys (
			               new object [] {resourceDictionary},
			               new object [] {new NSString ("WebMainResource")});
			
			NSDictionary htmlItem = NSDictionary.FromObjectsAndKeys (
			               new object [] {containerDictionary},
			               new object [] {new NSString(htmlType)});
			
			
			// TEXT payload
			NSDictionary textItem = NSDictionary.FromObjectsAndKeys (
			               new object [] {new NSString(text)},
			               new object [] {new NSString(textType)});
			

			// finally, add to PASTEBOARD
			NSDictionary[] items = new NSDictionary [] {htmlItem, textItem};

			if (pasteboard.Contains (new string[] {htmlType, textType} )) {
				pasteboard.Items = items;
				Console.WriteLine ("Replace existing items");
			} else {
				pasteboard.AddItems (items);
				Console.WriteLine ("Added items");
			}
			

		}
	}
}