From 11567e67133ba4d27a4337e09d6dd1bf5f459c7a Mon Sep 17 00:00:00 2001
From: Rui Marinho <me@ruimarinho.net>
Date: Fri, 6 Jan 2017 01:35:58 +0000
Subject: [PATCH] [Xamarin] Add Yoga/YogaKit identical to native objc version

---
 .../AppDelegate.cs                            |  59 +++++++
 .../AppIcon.appiconset/Contents.json          | 157 ++++++++++++++++++
 .../Assets.xcassets/Contents.json             |   6 +
 .../Entitlements.plist                        |   6 +
 .../Facebook.YogaKit.iOS.Sample.csproj        | 128 ++++++++++++++
 .../Facebook.YogaKit.iOS.Sample/Info.plist    |  39 +++++
 .../LaunchScreen.storyboard                   |  27 +++
 .../Facebook.YogaKit.iOS.Sample/Main.cs       |  15 ++
 .../Main.storyboard                           |  25 +++
 .../ViewController.cs                         |  60 +++++++
 .../ViewController.designer.cs                |  17 ++
 11 files changed, 539 insertions(+)
 create mode 100644 csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/AppDelegate.cs
 create mode 100644 csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/Assets.xcassets/AppIcon.appiconset/Contents.json
 create mode 100644 csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/Assets.xcassets/Contents.json
 create mode 100644 csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/Entitlements.plist
 create mode 100644 csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/Facebook.YogaKit.iOS.Sample.csproj
 create mode 100644 csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/Info.plist
 create mode 100644 csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/LaunchScreen.storyboard
 create mode 100644 csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/Main.cs
 create mode 100644 csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/Main.storyboard
 create mode 100644 csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/ViewController.cs
 create mode 100644 csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/ViewController.designer.cs

diff --git a/csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/AppDelegate.cs b/csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/AppDelegate.cs
new file mode 100644
index 00000000..b59ca105
--- /dev/null
+++ b/csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/AppDelegate.cs
@@ -0,0 +1,59 @@
+using Foundation;
+using UIKit;
+
+namespace Facebook.YogaKit.iOS.Sample
+{
+    // The UIApplicationDelegate for the application. This class is responsible for launching the
+    // User Interface of the application, as well as listening (and optionally responding) to application events from iOS.
+    [Register("AppDelegate")]
+    public class AppDelegate : UIApplicationDelegate
+    {
+        // class-level declarations
+
+        public override UIWindow Window
+        {
+            get;
+            set;
+        }
+
+        public override bool FinishedLaunching(UIApplication application, NSDictionary launchOptions)
+        {
+            // Override point for customization after application launch.
+            // If not required for your application you can safely delete this method
+
+            return true;
+        }
+
+        public override void OnResignActivation(UIApplication application)
+        {
+            // Invoked when the application is about to move from active to inactive state.
+            // This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) 
+            // or when the user quits the application and it begins the transition to the background state.
+            // Games should use this method to pause the game.
+        }
+
+        public override void DidEnterBackground(UIApplication application)
+        {
+            // Use this method to release shared resources, save user data, invalidate timers and store the application state.
+            // If your application supports background exection this method is called instead of WillTerminate when the user quits.
+        }
+
+        public override void WillEnterForeground(UIApplication application)
+        {
+            // Called as part of the transiton from background to active state.
+            // Here you can undo many of the changes made on entering the background.
+        }
+
+        public override void OnActivated(UIApplication application)
+        {
+            // Restart any tasks that were paused (or not yet started) while the application was inactive. 
+            // If the application was previously in the background, optionally refresh the user interface.
+        }
+
+        public override void WillTerminate(UIApplication application)
+        {
+            // Called when the application is about to terminate. Save data, if needed. See also DidEnterBackground.
+        }
+    }
+}
+
diff --git a/csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/Assets.xcassets/AppIcon.appiconset/Contents.json b/csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 00000000..4e646784
--- /dev/null
+++ b/csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/Assets.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,157 @@
+{
+  "images": [
+    {
+      "idiom": "iphone",
+      "size": "29x29",
+      "scale": "1x"
+    },
+    {
+      "idiom": "iphone",
+      "size": "29x29",
+      "scale": "2x"
+    },
+    {
+      "idiom": "iphone",
+      "size": "29x29",
+      "scale": "3x"
+    },
+    {
+      "idiom": "iphone",
+      "size": "40x40",
+      "scale": "2x"
+    },
+    {
+      "idiom": "iphone",
+      "size": "40x40",
+      "scale": "3x"
+    },
+    {
+      "idiom": "iphone",
+      "size": "57x57",
+      "scale": "1x"
+    },
+    {
+      "idiom": "iphone",
+      "size": "57x57",
+      "scale": "2x"
+    },
+    {
+      "idiom": "iphone",
+      "size": "60x60",
+      "scale": "2x"
+    },
+    {
+      "idiom": "iphone",
+      "size": "60x60",
+      "scale": "3x"
+    },
+    {
+      "idiom": "ipad",
+      "size": "29x29",
+      "scale": "1x"
+    },
+    {
+      "idiom": "ipad",
+      "size": "29x29",
+      "scale": "2x"
+    },
+    {
+      "idiom": "ipad",
+      "size": "40x40",
+      "scale": "1x"
+    },
+    {
+      "idiom": "ipad",
+      "size": "40x40",
+      "scale": "2x"
+    },
+    {
+      "idiom": "ipad",
+      "size": "50x50",
+      "scale": "1x"
+    },
+    {
+      "idiom": "ipad",
+      "size": "50x50",
+      "scale": "2x"
+    },
+    {
+      "idiom": "ipad",
+      "size": "72x72",
+      "scale": "1x"
+    },
+    {
+      "idiom": "ipad",
+      "size": "72x72",
+      "scale": "2x"
+    },
+    {
+      "idiom": "ipad",
+      "size": "76x76",
+      "scale": "1x"
+    },
+    {
+      "idiom": "ipad",
+      "size": "76x76",
+      "scale": "2x"
+    },
+    {
+      "size": "24x24",
+      "idiom": "watch",
+      "scale": "2x",
+      "role": "notificationCenter",
+      "subtype": "38mm"
+    },
+    {
+      "size": "27.5x27.5",
+      "idiom": "watch",
+      "scale": "2x",
+      "role": "notificationCenter",
+      "subtype": "42mm"
+    },
+    {
+      "size": "29x29",
+      "idiom": "watch",
+      "role": "companionSettings",
+      "scale": "2x"
+    },
+    {
+      "size": "29x29",
+      "idiom": "watch",
+      "role": "companionSettings",
+      "scale": "3x"
+    },
+    {
+      "size": "40x40",
+      "idiom": "watch",
+      "scale": "2x",
+      "role": "appLauncher",
+      "subtype": "38mm"
+    },
+    {
+      "size": "44x44",
+      "idiom": "watch",
+      "scale": "2x",
+      "role": "longLook",
+      "subtype": "42mm"
+    },
+    {
+      "size": "86x86",
+      "idiom": "watch",
+      "scale": "2x",
+      "role": "quickLook",
+      "subtype": "38mm"
+    },
+    {
+      "size": "98x98",
+      "idiom": "watch",
+      "scale": "2x",
+      "role": "quickLook",
+      "subtype": "42mm"
+    }
+  ],
+  "info": {
+    "version": 1,
+    "author": "xcode"
+  }
+}
\ No newline at end of file
diff --git a/csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/Assets.xcassets/Contents.json b/csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/Assets.xcassets/Contents.json
new file mode 100644
index 00000000..4caf392f
--- /dev/null
+++ b/csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/Assets.xcassets/Contents.json
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/Entitlements.plist b/csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/Entitlements.plist
new file mode 100644
index 00000000..9ae59937
--- /dev/null
+++ b/csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/Entitlements.plist
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+</dict>
+</plist>
diff --git a/csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/Facebook.YogaKit.iOS.Sample.csproj b/csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/Facebook.YogaKit.iOS.Sample.csproj
new file mode 100644
index 00000000..d94eb930
--- /dev/null
+++ b/csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/Facebook.YogaKit.iOS.Sample.csproj
@@ -0,0 +1,128 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">iPhoneSimulator</Platform>
+    <ProjectGuid>{6A094B74-FA9A-4E49-A8E1-F450A04E3E5B}</ProjectGuid>
+    <ProjectTypeGuids>{FEACFBD2-3405-455C-9665-78FE426C6842};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
+    <OutputType>Exe</OutputType>
+    <RootNamespace>Facebook.YogaKit.iOS.Sample</RootNamespace>
+    <AssemblyName>Facebook.YogaKit.iOS.Sample</AssemblyName>
+    <IPhoneResourcePrefix>Resources</IPhoneResourcePrefix>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|iPhoneSimulator' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\iPhoneSimulator\Debug</OutputPath>
+    <DefineConstants>DEBUG;ENABLE_TEST_CLOUD;__IOS__</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <CodesignKey>iPhone Developer</CodesignKey>
+    <MtouchDebug>true</MtouchDebug>
+    <MtouchFastDev>true</MtouchFastDev>
+    <MtouchProfiling>true</MtouchProfiling>
+    <MtouchUseSGen>true</MtouchUseSGen>
+    <MtouchUseRefCounting>true</MtouchUseRefCounting>
+    <IOSDebuggerPort>56768</IOSDebuggerPort>
+    <MtouchLink>None</MtouchLink>
+    <MtouchArch>x86_64</MtouchArch>
+    <MtouchHttpClientHandler>HttpClientHandler</MtouchHttpClientHandler>
+    <MtouchTlsProvider>Default</MtouchTlsProvider>
+    <DeviceSpecificBuild>false</DeviceSpecificBuild>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|iPhone' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\iPhone\Release</OutputPath>
+    <DefineConstants></DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <CodesignKey>iPhone Developer</CodesignKey>
+    <MtouchUseSGen>true</MtouchUseSGen>
+    <MtouchUseRefCounting>true</MtouchUseRefCounting>
+    <MtouchFloat32>true</MtouchFloat32>
+    <CodesignEntitlements>Entitlements.plist</CodesignEntitlements>
+    <MtouchLink>SdkOnly</MtouchLink>
+    <MtouchArch>ARMv7, ARM64</MtouchArch>
+    <MtouchHttpClientHandler>HttpClientHandler</MtouchHttpClientHandler>
+    <MtouchTlsProvider>Default</MtouchTlsProvider>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|iPhoneSimulator' ">
+    <DebugType></DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\iPhoneSimulator\Release</OutputPath>
+    <DefineConstants></DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <CodesignKey>iPhone Developer</CodesignKey>
+    <MtouchUseSGen>true</MtouchUseSGen>
+    <MtouchUseRefCounting>true</MtouchUseRefCounting>
+    <MtouchLink>None</MtouchLink>
+    <MtouchArch>x86_64</MtouchArch>
+    <MtouchHttpClientHandler>HttpClientHandler</MtouchHttpClientHandler>
+    <MtouchTlsProvider>Default</MtouchTlsProvider>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|iPhone' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\iPhone\Debug</OutputPath>
+    <DefineConstants>DEBUG;ENABLE_TEST_CLOUD;</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <CodesignKey>iPhone Developer</CodesignKey>
+    <DeviceSpecificBuild>true</DeviceSpecificBuild>
+    <MtouchDebug>true</MtouchDebug>
+    <MtouchFastDev>true</MtouchFastDev>
+    <MtouchProfiling>true</MtouchProfiling>
+    <MtouchUseSGen>true</MtouchUseSGen>
+    <MtouchUseRefCounting>true</MtouchUseRefCounting>
+    <MtouchFloat32>true</MtouchFloat32>
+    <CodesignEntitlements>Entitlements.plist</CodesignEntitlements>
+    <MtouchLink>SdkOnly</MtouchLink>
+    <MtouchArch>ARMv7, ARM64</MtouchArch>
+    <MtouchHttpClientHandler>HttpClientHandler</MtouchHttpClientHandler>
+    <MtouchTlsProvider>Default</MtouchTlsProvider>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Xml" />
+    <Reference Include="System.Core" />
+    <Reference Include="Xamarin.iOS" />
+  </ItemGroup>
+  <ItemGroup>
+    <ImageAsset Include="Assets.xcassets\AppIcon.appiconset\Contents.json" />
+    <ImageAsset Include="Assets.xcassets\Contents.json" />
+  </ItemGroup>
+  <ItemGroup>
+    <Folder Include="Resources\" />
+  </ItemGroup>
+  <ItemGroup>
+    <InterfaceDefinition Include="LaunchScreen.storyboard" />
+    <InterfaceDefinition Include="Main.storyboard" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="Info.plist" />
+    <None Include="Entitlements.plist" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Main.cs" />
+    <Compile Include="AppDelegate.cs" />
+    <Compile Include="ViewController.cs" />
+    <Compile Include="ViewController.designer.cs">
+      <DependentUpon>ViewController.cs</DependentUpon>
+    </Compile>
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\Facebook.YogaKit.iOS\Facebook.YogaKit.iOS.csproj">
+      <Project>{0C38AA9D-3178-4B43-9C3B-3C97A90FB1B0}</Project>
+      <Name>Facebook.YogaKit.iOS</Name>
+    </ProjectReference>
+    <ProjectReference Include="..\Facebook.Yoga.iOS\Facebook.Yoga.iOS.csproj">
+      <Project>{128FB32A-C4A1-4363-BF06-0A36E700B7FA}</Project>
+      <Name>Facebook.Yoga.iOS</Name>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(MSBuildExtensionsPath)\Xamarin\iOS\Xamarin.iOS.CSharp.targets" />
+</Project>
\ No newline at end of file
diff --git a/csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/Info.plist b/csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/Info.plist
new file mode 100644
index 00000000..0c6a791e
--- /dev/null
+++ b/csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/Info.plist
@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>CFBundleName</key>
+    <string>Facebook.YogaKit.iOS.Sample</string>
+    <key>CFBundleIdentifier</key>
+    <string>com.xamarin.facebook-yogakit-ios-sample</string>
+    <key>CFBundleShortVersionString</key>
+    <string>1.0</string>
+    <key>CFBundleVersion</key>
+    <string>1.0</string>
+    <key>LSRequiresIPhoneOS</key>
+    <true/>
+    <key>MinimumOSVersion</key>
+    <string>10.2</string>
+    <key>UIDeviceFamily</key>
+    <array>
+        <integer>1</integer>
+        <integer>2</integer>
+    </array>
+    <key>UILaunchStoryboardName</key>
+    <string>LaunchScreen</string>
+    <key>UIMainStoryboardFile</key>
+    <string>Main</string>
+    <key>UIRequiredDeviceCapabilities</key>
+    <array>
+        <string>armv7</string>
+    </array>
+    <key>UISupportedInterfaceOrientations</key>
+    <array>
+        <string>UIInterfaceOrientationPortrait</string>
+        <string>UIInterfaceOrientationLandscapeLeft</string>
+        <string>UIInterfaceOrientationLandscapeRight</string>
+    </array>
+    <key>XSAppIconAssets</key>
+    <string>Assets.xcassets/AppIcon.appiconset</string>
+</dict>
+</plist>
diff --git a/csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/LaunchScreen.storyboard b/csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/LaunchScreen.storyboard
new file mode 100644
index 00000000..5d2e905a
--- /dev/null
+++ b/csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/LaunchScreen.storyboard
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="9532" systemVersion="15D21" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <deployment identifier="iOS" />
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="9530" />
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <layoutGuides>
+                        <viewControllerLayoutGuide type="top" id="Llm-lL-Icb" />
+                        <viewControllerLayoutGuide type="bottom" id="xb3-aO-Qok" />
+                    </layoutGuides>
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="600" height="600" />
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES" />
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite" />
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder" />
+            </objects>
+            <point key="canvasLocation" x="53" y="375" />
+        </scene>
+    </scenes>
+</document>
diff --git a/csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/Main.cs b/csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/Main.cs
new file mode 100644
index 00000000..f87df673
--- /dev/null
+++ b/csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/Main.cs
@@ -0,0 +1,15 @@
+using UIKit;
+
+namespace Facebook.YogaKit.iOS.Sample
+{
+    public class Application
+    {
+        // This is the main entry point of the application.
+        static void Main(string[] args)
+        {
+            // if you want to use a different Application Delegate class from "AppDelegate"
+            // you can specify it here.
+            UIApplication.Main(args, null, "AppDelegate");
+        }
+    }
+}
diff --git a/csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/Main.storyboard b/csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/Main.storyboard
new file mode 100644
index 00000000..a43ad72c
--- /dev/null
+++ b/csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/Main.storyboard
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="6211" systemVersion="14A298i" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="BYZ-38-t0r">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6204" />
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="tne-QT-ifu">
+            <objects>
+                <viewController id="BYZ-38-t0r" customClass="ViewController" customModuleProvider="" sceneMemberID="viewController">
+                    <layoutGuides>
+                        <viewControllerLayoutGuide type="top" id="y3c-jy-aDJ" />
+                        <viewControllerLayoutGuide type="bottom" id="wfy-db-euE" />
+                    </layoutGuides>
+                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
+                        <rect key="frame" x="0.0" y="0.0" width="600" height="600" />
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES" />
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite" />
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder" />
+            </objects>
+        </scene>
+    </scenes>
+</document>
diff --git a/csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/ViewController.cs b/csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/ViewController.cs
new file mode 100644
index 00000000..072c8851
--- /dev/null
+++ b/csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/ViewController.cs
@@ -0,0 +1,60 @@
+using System;
+using CoreGraphics;
+using Facebook.Yoga;
+using UIKit;
+
+namespace Facebook.YogaKit.iOS.Sample
+{
+	public partial class ViewController : UIViewController
+	{
+		protected ViewController(IntPtr handle) : base(handle)
+		{
+			// Note: this .ctor should not contain any initialization logic.
+		}
+
+		public override void ViewDidLoad()
+		{
+			base.ViewDidLoad();
+			CreateViewHierarchy(View, View.Bounds.Size.Width, View.Bounds.Size.Height);
+		}
+
+		static void CreateViewHierarchy(UIView root, nfloat width, nfloat height)
+		{
+			root.BackgroundColor = UIColor.Red;
+
+			root.UsesYoga(true);
+			root.YogaWidth(width);
+			root.YogaWidth(height);
+			root.YogaAlignItems(YogaAlign.Center);
+			root.YogaJustify(YogaJustify.Center);
+
+			var child1 = new UIView { BackgroundColor = UIColor.Blue };
+			child1.YogaWidth(100);
+			child1.YogaHeight(100);
+			child1.UsesYoga(true);
+
+			var child2 = new UIView
+			{
+				BackgroundColor = UIColor.Green,
+				Frame = new CGRect { Size = new CGSize(200, 100) }
+			};
+
+			var child3 = new UIView
+			{
+				BackgroundColor = UIColor.Yellow,
+				Frame = new CGRect { Size = new CGSize(100, 100) }
+			};
+
+			child2.AddSubview(child3);
+			root.AddSubview(child1);
+			root.AddSubview(child2);
+			root.YogaApplyLayout();
+		}
+
+		public override void DidReceiveMemoryWarning()
+		{
+			base.DidReceiveMemoryWarning();
+			// Release any cached data, images, etc that aren't in use.
+		}
+	}
+}
diff --git a/csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/ViewController.designer.cs b/csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/ViewController.designer.cs
new file mode 100644
index 00000000..810950d0
--- /dev/null
+++ b/csharp/Xamarin.iOS/Facebook.YogaKit.iOS.Sample/ViewController.designer.cs
@@ -0,0 +1,17 @@
+//
+// This file has been generated automatically by MonoDevelop to store outlets and
+// actions made in the Xcode designer. If it is removed, they will be lost.
+// Manual changes to this file may not be handled correctly.
+//
+using Foundation;
+
+namespace Facebook.YogaKit.iOS.Sample
+{
+    [Register("ViewController")]
+    partial class ViewController
+    {
+        void ReleaseDesignerOutlets()
+        {
+        }
+    }
+}