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        // "return" "version" "name" - names aren't syntactically correct (they're probably upper case for starters)
        // 21 5.0 lollipop
        // 20 4.4.2W kitkat wear
        // 19 4.4.2 kitkat
        // 18 4.3.1 jelly bean mr2
        // 17 4.2.2 jelly bean mr1
        // 16 4.1.2 jelly bean
        // 15 4.0.3 ice-cream sandwich mr1
        // 14 4.0 ice-cream sandwich
        // 13 3.2 honeycomb mr2

RedTahr

        // http://stackoverflow.com/questions/10310917/uicolor-from-hex-in-monotouch
        public static UIColor GetColorFromHexString(string hexValue) {
            hexValue = hexValue.Substring(1, 6); // string will be passed in with a leading #
            var r = Convert.ToByte(hexValue.Substring(0, 2), 16);
            var g = Convert.ToByte(hexValue.Substring(2, 2), 16);
            var b = Convert.ToByte(hexValue.Substring(4, 2), 16);
            return UIColor.FromRGB(r, g, b);
        }

RedTahr

        // http://social.msdn.microsoft.com/forums/windowsapps/en-us/b639cd8a-30c2-48cf-99be-559f34cbfa79/convert-string-to-color-in-metro
        public static System.Windows.Media.Color GetColorFromHexString(string hexValue) {
            hexValue = hexValue.Substring(1, 6); // string will be passed in with a leading #
            byte a = 0xff;// Convert.ToByte(hexValue.Substring(0, 2), 16);
            var r = Convert.ToByte(hexValue.Substring(0, 2), 16);
            var g = Convert.ToByte(hexValue.Substring(2, 2), 16);
            var b = Convert.ToByte(hexValue.Substring(4, 2), 16);
            return System.Windows.Media.Color.FromArgb(a, r, g, b);
        }

RedTahr

// http://developer.xamarin.com/recipes/ios/content_controls/map_view/display_a_location/

        /// <summary>Converts miles to latitude degrees</summary>
        public static double MilesToLatitudeDegrees(double miles) {
            double earthRadius = 3960.0; // in miles
            double radiansToDegrees = 180.0 / Math.PI;
            return (miles / earthRadius) * radiansToDegrees;
        }

        /// <summary>Converts miles to longitudinal degrees at a specified latitude</summary>

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        // Xamarin Evolve 2014: Extending Xamarin.Forms with Custom Controls - Jason Smith, Xamarin https://www.youtube.com/watch?v=pIZ8G47KPIM
        protected async override void OnAppearing() {
            base.OnAppearing();

            var loadingView = new ActivityIndicator {
                VerticalOptions = LayoutOptions.Center,
                HorizontalOptions = LayoutOptions.Center,
                IsRunning = true
            };

RedTahr

using System.Collections.Generic;
using System.Collections.ObjectModel;

// from Xamarin Monkey demo - http://motzcod.es/post/93792500152/custom-listview-viewcells-in-xamarin-forms
namespace Interact.Core.Helper {
    public class Grouping<TKey, TValue> : ObservableCollection<TValue> {
        public TKey Key { get; private set; }
        public Grouping(TKey key, IEnumerable<TValue> items) {
            Key = key;
            foreach (var item in items)

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# Disable Smart Card PnP

# [x86]
# [HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\ScPnP]
# "EnableScPnP"=dword:00000000

# [64-bit]
# HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\ScPnP]
# "EnableScPnP"=dword:00000000
# this Wow6432Node entry is a "hardlink" to the above entry, so you create/delete/edit that and the changes are mirrored in Wow6432Node

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namespace ... {
  public abstract class BaseViewModel : BindableObject { // yeah its overkill, can't recall why my colleague did it this way
  
		private string title = string.Empty;
		public string Title {
			get { return title; }
			set {
				if(title != value) {
					title = value;
					RaisePropertyChanged();

RedTahr

namespace ... {
	// for supporting this
	// public partial class "Derived"Page : "Derived"PageXaml {.... } for a xaml/cs page
	// then
	// <?xml version="1.0" encoding="utf-8" ?><local:"Derived"tPageXaml xmlns="ht...
	// with this bit in the cs file
	// public partial class "Derived"PageXaml : BasePageOverrideBackButton<ViewModel."Derived"ViewModel> {	}
	public class BasePageOverrideBackButton<T> : BasePage<T> where T : ViewModel.BaseViewModel, new() { 
		public BasePageOverrideBackButton() : base() {
		}

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<?xml version="1.0" encoding="utf-8" ?>
<derived:BasePage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             x:Class="....AboutPage"
             xmlns:local="clr-namespace:...;assembly=..."
             xmlns:derived="clr-namespace:....View;assembly=..."
             BindingContext="{x:Static local:App.AboutViewModel}"
             Title="About">
  <StackLayout Orientation="Vertical" HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand">
    <Label Text="{Binding Detail}"/>