add HelloworldXamarin scaffolding

30 files changed, 960 insertions, 0 deletions

diff --git a/examples/csharp/HelloworldXamarin/.gitignore b/examples/csharp/HelloworldXamarin/.gitignore
new file mode 100644
index 0000000000..bf793edcc6
--- /dev/null
+++ b/examples/csharp/HelloworldXamarin/.gitignore
@@ -0,0 +1,41 @@
+# Autosave files

+*~

+

+# build

+[Oo]bj/

+[Bb]in/

+packages/

+TestResults/

+

+# globs

+Makefile.in

+*.DS_Store

+*.sln.cache

+*.suo

+*.cache

+*.pidb

+*.userprefs

+*.usertasks

+config.log

+config.make

+config.status

+aclocal.m4

+install-sh

+autom4te.cache/

+*.user

+*.tar.gz

+tarballs/

+test-results/

+Thumbs.db

+.vs/

+

+# Mac bundle stuff

+*.dmg

+*.app

+

+# resharper

+*_Resharper.*

+*.Resharper

+

+# dotCover

+*.dotCover

diff --git a/examples/csharp/HelloworldXamarin/Droid/Assets/AboutAssets.txt b/examples/csharp/HelloworldXamarin/Droid/Assets/AboutAssets.txt
new file mode 100644
index 0000000000..a9b0638eb1
--- /dev/null
+++ b/examples/csharp/HelloworldXamarin/Droid/Assets/AboutAssets.txt
@@ -0,0 +1,19 @@
+Any raw assets you want to be deployed with your application can be placed in
+this directory (and child directories) and given a Build Action of "AndroidAsset".
+
+These files will be deployed with your package and will be accessible using Android's
+AssetManager, like this:
+
+public class ReadAsset : Activity
+{
+	protected override void OnCreate (Bundle bundle)
+	{
+		base.OnCreate (bundle);
+
+		InputStream input = Assets.Open ("my_asset.txt");
+	}
+}
+
+Additionally, some Android functions will automatically load asset files:
+
+Typeface tf = Typeface.CreateFromAsset (Context.Assets, "fonts/samplefont.ttf");
diff --git a/examples/csharp/HelloworldXamarin/Droid/HelloworldXamarin.Droid.csproj b/examples/csharp/HelloworldXamarin/Droid/HelloworldXamarin.Droid.csproj
new file mode 100644
index 0000000000..20f1cedb87
--- /dev/null
+++ b/examples/csharp/HelloworldXamarin/Droid/HelloworldXamarin.Droid.csproj
@@ -0,0 +1,67 @@
+<?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)' == '' ">AnyCPU</Platform>

+    <ProjectGuid>{B9B0D41C-1C07-4590-A919-5865E741B2EA}</ProjectGuid>

+    <ProjectTypeGuids>{EFBA0AD7-5A72-4C68-AF49-83D382785DCF};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>

+    <OutputType>Library</OutputType>

+    <RootNamespace>HelloworldXamarin.Droid</RootNamespace>

+    <AssemblyName>HelloworldXamarin.Droid</AssemblyName>

+    <TargetFrameworkVersion>v8.1</TargetFrameworkVersion>

+    <AndroidApplication>True</AndroidApplication>

+    <AndroidResgenFile>Resources\Resource.designer.cs</AndroidResgenFile>

+    <AndroidResgenClass>Resource</AndroidResgenClass>

+    <AndroidManifest>Properties\AndroidManifest.xml</AndroidManifest>

+    <MonoAndroidResourcePrefix>Resources</MonoAndroidResourcePrefix>

+    <MonoAndroidAssetsPrefix>Assets</MonoAndroidAssetsPrefix>

+    <AndroidUseLatestPlatformSdk>true</AndroidUseLatestPlatformSdk>

+  </PropertyGroup>

+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">

+    <DebugSymbols>true</DebugSymbols>

+    <DebugType>full</DebugType>

+    <Optimize>false</Optimize>

+    <OutputPath>bin\Debug</OutputPath>

+    <DefineConstants>DEBUG;</DefineConstants>

+    <ErrorReport>prompt</ErrorReport>

+    <WarningLevel>4</WarningLevel>

+    <AndroidLinkMode>None</AndroidLinkMode>

+  </PropertyGroup>

+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">

+    <DebugSymbols>true</DebugSymbols>

+    <DebugType>pdbonly</DebugType>

+    <Optimize>true</Optimize>

+    <OutputPath>bin\Release</OutputPath>

+    <ErrorReport>prompt</ErrorReport>

+    <WarningLevel>4</WarningLevel>

+    <AndroidManagedSymbols>true</AndroidManagedSymbols>

+    <AndroidUseSharedRuntime>false</AndroidUseSharedRuntime>

+  </PropertyGroup>

+  <ItemGroup>

+    <Reference Include="System" />

+    <Reference Include="System.Xml" />

+    <Reference Include="System.Core" />

+    <Reference Include="Mono.Android" />

+  </ItemGroup>

+  <ItemGroup>

+    <Compile Include="MainActivity.cs" />

+    <Compile Include="Resources\Resource.designer.cs" />

+    <Compile Include="Properties\AssemblyInfo.cs" />

+  </ItemGroup>

+  <ItemGroup>

+    <None Include="Resources\AboutResources.txt" />

+    <None Include="Properties\AndroidManifest.xml" />

+    <None Include="Assets\AboutAssets.txt" />

+  </ItemGroup>

+  <ItemGroup>

+    <AndroidResource Include="Resources\layout\Main.axml" />

+    <AndroidResource Include="Resources\values\Strings.xml" />

+    <AndroidResource Include="Resources\mipmap-hdpi\Icon.png" />

+    <AndroidResource Include="Resources\mipmap-mdpi\Icon.png" />

+    <AndroidResource Include="Resources\mipmap-xhdpi\Icon.png" />

+    <AndroidResource Include="Resources\mipmap-xxhdpi\Icon.png" />

+    <AndroidResource Include="Resources\mipmap-xxxhdpi\Icon.png" />

+  </ItemGroup>

+  <Import Project="..\HelloworldXamarin\HelloworldXamarin.projitems" Label="Shared" Condition="Exists('..\HelloworldXamarin\HelloworldXamarin.projitems')" />

+  <Import Project="$(MSBuildExtensionsPath)\Xamarin\Android\Xamarin.Android.CSharp.targets" />

+</Project>
\ No newline at end of file
diff --git a/examples/csharp/HelloworldXamarin/Droid/MainActivity.cs b/examples/csharp/HelloworldXamarin/Droid/MainActivity.cs
new file mode 100644
index 0000000000..20982422f2
--- /dev/null
+++ b/examples/csharp/HelloworldXamarin/Droid/MainActivity.cs
@@ -0,0 +1,27 @@
+using Android.App;
+using Android.Widget;
+using Android.OS;
+
+namespace HelloworldXamarin.Droid
+{
+    [Activity(Label = "HelloworldXamarin", MainLauncher = true, Icon = "@mipmap/icon")]
+    public class MainActivity : Activity
+    {
+        int count = 1;
+
+        protected override void OnCreate(Bundle savedInstanceState)
+        {
+            base.OnCreate(savedInstanceState);
+
+            // Set our view from the "main" layout resource
+            SetContentView(Resource.Layout.Main);
+
+            // Get our button from the layout resource,
+            // and attach an event to it
+            Button button = FindViewById<Button>(Resource.Id.myButton);
+
+            button.Click += delegate { button.Text = $"{count++} clicks!"; };
+        }
+    }
+}
+
diff --git a/examples/csharp/HelloworldXamarin/Droid/Properties/AndroidManifest.xml b/examples/csharp/HelloworldXamarin/Droid/Properties/AndroidManifest.xml
new file mode 100644
index 0000000000..4f2167a1a0
--- /dev/null
+++ b/examples/csharp/HelloworldXamarin/Droid/Properties/AndroidManifest.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" android:versionCode="1" android:versionName="1.0" package="io.grpc.examples.HelloworldXamarin">
+    <uses-sdk android:minSdkVersion="15" />
+    <application android:label="HelloworldXamarin">
+    </application>
+</manifest>
diff --git a/examples/csharp/HelloworldXamarin/Droid/Properties/AssemblyInfo.cs b/examples/csharp/HelloworldXamarin/Droid/Properties/AssemblyInfo.cs
new file mode 100644
index 0000000000..4c952aa191
--- /dev/null
+++ b/examples/csharp/HelloworldXamarin/Droid/Properties/AssemblyInfo.cs
@@ -0,0 +1,27 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using Android.App;
+
+// Information about this assembly is defined by the following attributes. 
+// Change them to the values specific to your project.
+
+[assembly: AssemblyTitle("HelloworldXamarin.Droid")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("")]
+[assembly: AssemblyCopyright("${AuthorCopyright}")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// The assembly version has the format "{Major}.{Minor}.{Build}.{Revision}".
+// The form "{Major}.{Minor}.*" will automatically update the build and revision,
+// and "{Major}.{Minor}.{Build}.*" will update just the revision.
+
+[assembly: AssemblyVersion("1.0.0")]
+
+// The following attributes are used to specify the signing key for the assembly, 
+// if desired. See the Mono documentation for more information about signing.
+
+//[assembly: AssemblyDelaySign(false)]
+//[assembly: AssemblyKeyFile("")]
diff --git a/examples/csharp/HelloworldXamarin/Droid/Resources/AboutResources.txt b/examples/csharp/HelloworldXamarin/Droid/Resources/AboutResources.txt
new file mode 100644
index 0000000000..10f52d4602
--- /dev/null
+++ b/examples/csharp/HelloworldXamarin/Droid/Resources/AboutResources.txt
@@ -0,0 +1,44 @@
+Images, layout descriptions, binary blobs and string dictionaries can be included 
+in your application as resource files.  Various Android APIs are designed to 
+operate on the resource IDs instead of dealing with images, strings or binary blobs 
+directly.
+
+For example, a sample Android app that contains a user interface layout (main.axml),
+an internationalization string table (strings.xml) and some icons (drawable-XXX/icon.png) 
+would keep its resources in the "Resources" directory of the application:
+
+Resources/
+    drawable/
+        icon.png
+
+    layout/
+        main.axml
+
+    values/
+        strings.xml
+
+In order to get the build system to recognize Android resources, set the build action to
+"AndroidResource".  The native Android APIs do not operate directly with filenames, but 
+instead operate on resource IDs.  When you compile an Android application that uses resources, 
+the build system will package the resources for distribution and generate a class called "R" 
+(this is an Android convention) that contains the tokens for each one of the resources 
+included. For example, for the above Resources layout, this is what the R class would expose:
+
+public class R {
+    public class drawable {
+        public const int icon = 0x123;
+    }
+
+    public class layout {
+        public const int main = 0x456;
+    }
+
+    public class strings {
+        public const int first_string = 0xabc;
+        public const int second_string = 0xbcd;
+    }
+}
+
+You would then use R.drawable.icon to reference the drawable/icon.png file, or R.layout.main 
+to reference the layout/main.axml file, or R.strings.first_string to reference the first 
+string in the dictionary file values/strings.xml.
diff --git a/examples/csharp/HelloworldXamarin/Droid/Resources/Resource.designer.cs b/examples/csharp/HelloworldXamarin/Droid/Resources/Resource.designer.cs
new file mode 100644
index 0000000000..f475dda40b
--- /dev/null
+++ b/examples/csharp/HelloworldXamarin/Droid/Resources/Resource.designer.cs
@@ -0,0 +1,63 @@
+namespace HelloworldXamarin.Droid.Resources
+{
+
+
+    public partial class Resource
+    {
+
+        public partial class Attribute
+        {
+
+            private Attribute()
+            {
+            }
+        }
+
+        public partial class Drawable
+        {
+
+            // aapt resource value: 0x7f020000
+            public const int icon = 2130837504;
+
+            private Drawable()
+            {
+            }
+        }
+
+        public partial class Layout
+        {
+
+            // aapt resource value: 0x7f030000
+            public const int Main = 2130903040;
+
+            private Layout()
+            {
+            }
+        }
+
+        public partial class String
+        {
+
+            // aapt resource value: 0x7f040000
+            public const int hello = 2130968576;
+
+            // aapt resource value: 0x7f040001
+            public const int app_name = 2130968577;
+
+            private String()
+            {
+            }
+        }
+
+        public partial class Id
+        {
+
+            // aapt resource value: 0x7f050000
+            public const int myButton = 2131034112;
+
+            private Id()
+            {
+            }
+        }
+    }
+}
diff --git a/examples/csharp/HelloworldXamarin/Droid/Resources/layout/Main.axml b/examples/csharp/HelloworldXamarin/Droid/Resources/layout/Main.axml
new file mode 100644
index 0000000000..8cb72282b9
--- /dev/null
+++ b/examples/csharp/HelloworldXamarin/Droid/Resources/layout/Main.axml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent">
+    <Button android:id="@+id/myButton" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/hello" />
+</LinearLayout>
diff --git a/examples/csharp/HelloworldXamarin/Droid/Resources/mipmap-hdpi/Icon.png b/examples/csharp/HelloworldXamarin/Droid/Resources/mipmap-hdpi/Icon.png
new file mode 100644
index 0000000000..f4c804644c
--- /dev/null
+++ b/examples/csharp/HelloworldXamarin/Droid/Resources/mipmap-hdpi/Icon.png
diff --git a/examples/csharp/HelloworldXamarin/Droid/Resources/mipmap-mdpi/Icon.png b/examples/csharp/HelloworldXamarin/Droid/Resources/mipmap-mdpi/Icon.png
new file mode 100644
index 0000000000..ef1e1ee7dc
--- /dev/null
+++ b/examples/csharp/HelloworldXamarin/Droid/Resources/mipmap-mdpi/Icon.png
diff --git a/examples/csharp/HelloworldXamarin/Droid/Resources/mipmap-xhdpi/Icon.png b/examples/csharp/HelloworldXamarin/Droid/Resources/mipmap-xhdpi/Icon.png
new file mode 100644
index 0000000000..b7e2e57aa9
--- /dev/null
+++ b/examples/csharp/HelloworldXamarin/Droid/Resources/mipmap-xhdpi/Icon.png
diff --git a/examples/csharp/HelloworldXamarin/Droid/Resources/mipmap-xxhdpi/Icon.png b/examples/csharp/HelloworldXamarin/Droid/Resources/mipmap-xxhdpi/Icon.png
new file mode 100644
index 0000000000..8d20a38d17
--- /dev/null
+++ b/examples/csharp/HelloworldXamarin/Droid/Resources/mipmap-xxhdpi/Icon.png
diff --git a/examples/csharp/HelloworldXamarin/Droid/Resources/mipmap-xxxhdpi/Icon.png b/examples/csharp/HelloworldXamarin/Droid/Resources/mipmap-xxxhdpi/Icon.png
new file mode 100644
index 0000000000..6d9919c41a
--- /dev/null
+++ b/examples/csharp/HelloworldXamarin/Droid/Resources/mipmap-xxxhdpi/Icon.png
diff --git a/examples/csharp/HelloworldXamarin/Droid/Resources/values/Strings.xml b/examples/csharp/HelloworldXamarin/Droid/Resources/values/Strings.xml
new file mode 100644
index 0000000000..0a47c047e2
--- /dev/null
+++ b/examples/csharp/HelloworldXamarin/Droid/Resources/values/Strings.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="hello">Hello World, Click Me!</string>
+    <string name="app_name">HelloworldXamarin.Droid</string>
+</resources>
diff --git a/examples/csharp/HelloworldXamarin/HelloworldXamarin.sln b/examples/csharp/HelloworldXamarin/HelloworldXamarin.sln
new file mode 100644
index 0000000000..e2a738f157
--- /dev/null
+++ b/examples/csharp/HelloworldXamarin/HelloworldXamarin.sln
@@ -0,0 +1,45 @@
+

+Microsoft Visual Studio Solution File, Format Version 12.00

+# Visual Studio 2012

+Project("{D954291E-2A0B-460D-934E-DC6B0785DB48}") = "HelloworldXamarin", "HelloworldXamarin\HelloworldXamarin.shproj", "{42FFF3D8-934F-4475-8E68-08DA340BF6E8}"

+EndProject

+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "HelloworldXamarin.Droid", "Droid\HelloworldXamarin.Droid.csproj", "{B9B0D41C-1C07-4590-A919-5865E741B2EA}"

+EndProject

+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "HelloworldXamarin.iOS", "iOS\HelloworldXamarin.iOS.csproj", "{62336DF0-60D8-478F-8140-B3CB089B417E}"

+EndProject

+Global

+	GlobalSection(SolutionConfigurationPlatforms) = preSolution

+		Debug|Any CPU = Debug|Any CPU

+		Release|Any CPU = Release|Any CPU

+		Debug|iPhoneSimulator = Debug|iPhoneSimulator

+		Release|iPhone = Release|iPhone

+		Release|iPhoneSimulator = Release|iPhoneSimulator

+		Debug|iPhone = Debug|iPhone

+	EndGlobalSection

+	GlobalSection(ProjectConfigurationPlatforms) = postSolution

+		{B9B0D41C-1C07-4590-A919-5865E741B2EA}.Debug|Any CPU.ActiveCfg = Debug|Any CPU

+		{B9B0D41C-1C07-4590-A919-5865E741B2EA}.Debug|Any CPU.Build.0 = Debug|Any CPU

+		{B9B0D41C-1C07-4590-A919-5865E741B2EA}.Release|Any CPU.ActiveCfg = Release|Any CPU

+		{B9B0D41C-1C07-4590-A919-5865E741B2EA}.Release|Any CPU.Build.0 = Release|Any CPU

+		{B9B0D41C-1C07-4590-A919-5865E741B2EA}.Debug|iPhoneSimulator.ActiveCfg = Debug|Any CPU

+		{B9B0D41C-1C07-4590-A919-5865E741B2EA}.Debug|iPhoneSimulator.Build.0 = Debug|Any CPU

+		{B9B0D41C-1C07-4590-A919-5865E741B2EA}.Release|iPhone.ActiveCfg = Release|Any CPU

+		{B9B0D41C-1C07-4590-A919-5865E741B2EA}.Release|iPhone.Build.0 = Release|Any CPU

+		{B9B0D41C-1C07-4590-A919-5865E741B2EA}.Release|iPhoneSimulator.ActiveCfg = Release|Any CPU

+		{B9B0D41C-1C07-4590-A919-5865E741B2EA}.Release|iPhoneSimulator.Build.0 = Release|Any CPU

+		{B9B0D41C-1C07-4590-A919-5865E741B2EA}.Debug|iPhone.ActiveCfg = Debug|Any CPU

+		{B9B0D41C-1C07-4590-A919-5865E741B2EA}.Debug|iPhone.Build.0 = Debug|Any CPU

+		{62336DF0-60D8-478F-8140-B3CB089B417E}.Debug|Any CPU.ActiveCfg = Debug|iPhoneSimulator

+		{62336DF0-60D8-478F-8140-B3CB089B417E}.Debug|Any CPU.Build.0 = Debug|iPhoneSimulator

+		{62336DF0-60D8-478F-8140-B3CB089B417E}.Release|Any CPU.ActiveCfg = Release|iPhone

+		{62336DF0-60D8-478F-8140-B3CB089B417E}.Release|Any CPU.Build.0 = Release|iPhone

+		{62336DF0-60D8-478F-8140-B3CB089B417E}.Debug|iPhoneSimulator.ActiveCfg = Debug|iPhoneSimulator

+		{62336DF0-60D8-478F-8140-B3CB089B417E}.Debug|iPhoneSimulator.Build.0 = Debug|iPhoneSimulator

+		{62336DF0-60D8-478F-8140-B3CB089B417E}.Release|iPhone.ActiveCfg = Release|iPhone

+		{62336DF0-60D8-478F-8140-B3CB089B417E}.Release|iPhone.Build.0 = Release|iPhone

+		{62336DF0-60D8-478F-8140-B3CB089B417E}.Release|iPhoneSimulator.ActiveCfg = Release|iPhoneSimulator

+		{62336DF0-60D8-478F-8140-B3CB089B417E}.Release|iPhoneSimulator.Build.0 = Release|iPhoneSimulator

+		{62336DF0-60D8-478F-8140-B3CB089B417E}.Debug|iPhone.ActiveCfg = Debug|iPhone

+		{62336DF0-60D8-478F-8140-B3CB089B417E}.Debug|iPhone.Build.0 = Debug|iPhone

+	EndGlobalSection

+EndGlobal

diff --git a/examples/csharp/HelloworldXamarin/HelloworldXamarin/HelloworldXamarin.projitems b/examples/csharp/HelloworldXamarin/HelloworldXamarin/HelloworldXamarin.projitems
new file mode 100644
index 0000000000..87466cb4a7
--- /dev/null
+++ b/examples/csharp/HelloworldXamarin/HelloworldXamarin/HelloworldXamarin.projitems
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>

+<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">

+  <PropertyGroup>

+    <MSBuildAllProjects>$(MSBuildAllProjects);$(MSBuildThisFileFullPath)</MSBuildAllProjects>

+    <HasSharedItems>true</HasSharedItems>

+    <SharedGUID>{42FFF3D8-934F-4475-8E68-08DA340BF6E8}</SharedGUID>

+  </PropertyGroup>

+  <PropertyGroup Label="Configuration">

+    <Import_RootNamespace>HelloworldXamarin</Import_RootNamespace>

+  </PropertyGroup>

+  <ItemGroup>

+    <Compile Include="$(MSBuildThisFileDirectory)MyClass.cs" />

+  </ItemGroup>

+</Project>
\ No newline at end of file
diff --git a/examples/csharp/HelloworldXamarin/HelloworldXamarin/HelloworldXamarin.shproj b/examples/csharp/HelloworldXamarin/HelloworldXamarin/HelloworldXamarin.shproj
new file mode 100644
index 0000000000..0eb2448b25
--- /dev/null
+++ b/examples/csharp/HelloworldXamarin/HelloworldXamarin/HelloworldXamarin.shproj
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>

+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">

+  <PropertyGroup>

+    <ProjectGuid>{42FFF3D8-934F-4475-8E68-08DA340BF6E8}</ProjectGuid>

+  </PropertyGroup>

+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />

+  <Import Project="$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)\CodeSharing\Microsoft.CodeSharing.Common.Default.props" />

+  <Import Project="$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)\CodeSharing\Microsoft.CodeSharing.Common.props" />

+  <Import Project="HelloworldXamarin.projitems" Label="Shared" />

+  <Import Project="$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)\CodeSharing\Microsoft.CodeSharing.CSharp.targets" />

+</Project>
\ No newline at end of file
diff --git a/examples/csharp/HelloworldXamarin/HelloworldXamarin/MyClass.cs b/examples/csharp/HelloworldXamarin/HelloworldXamarin/MyClass.cs
new file mode 100644
index 0000000000..e3fa67641a
--- /dev/null
+++ b/examples/csharp/HelloworldXamarin/HelloworldXamarin/MyClass.cs
@@ -0,0 +1,10 @@
+using System;
+namespace HelloworldXamarin
+{
+    public class MyClass
+    {
+        public MyClass()
+        {
+        }
+    }
+}
diff --git a/examples/csharp/HelloworldXamarin/iOS/AppDelegate.cs b/examples/csharp/HelloworldXamarin/iOS/AppDelegate.cs
new file mode 100644
index 0000000000..5c95359087
--- /dev/null
+++ b/examples/csharp/HelloworldXamarin/iOS/AppDelegate.cs
@@ -0,0 +1,59 @@
+using Foundation;
+using UIKit;
+
+namespace HelloworldXamarin.iOS
+{
+    // 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/examples/csharp/HelloworldXamarin/iOS/Assets.xcassets/AppIcon.appiconset/Contents.json b/examples/csharp/HelloworldXamarin/iOS/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000000..64d0e3ddf8
--- /dev/null
+++ b/examples/csharp/HelloworldXamarin/iOS/Assets.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,202 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "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" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "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" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    },
+    {
+      "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"
+    },
+    {
+      "idiom" : "mac",
+      "size" : "16x16",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "mac",
+      "size" : "16x16",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "mac",
+      "size" : "32x32",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "mac",
+      "size" : "32x32",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "mac",
+      "size" : "128x128",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "mac",
+      "size" : "128x128",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "mac",
+      "size" : "256x256",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "mac",
+      "size" : "256x256",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "mac",
+      "size" : "512x512",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "mac",
+      "size" : "512x512",
+      "scale" : "2x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
diff --git a/examples/csharp/HelloworldXamarin/iOS/Assets.xcassets/Contents.json b/examples/csharp/HelloworldXamarin/iOS/Assets.xcassets/Contents.json
new file mode 100644
index 0000000000..4caf392f92
--- /dev/null
+++ b/examples/csharp/HelloworldXamarin/iOS/Assets.xcassets/Contents.json
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/examples/csharp/HelloworldXamarin/iOS/Entitlements.plist b/examples/csharp/HelloworldXamarin/iOS/Entitlements.plist
new file mode 100644
index 0000000000..9ae599370b
--- /dev/null
+++ b/examples/csharp/HelloworldXamarin/iOS/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/examples/csharp/HelloworldXamarin/iOS/HelloworldXamarin.iOS.csproj b/examples/csharp/HelloworldXamarin/iOS/HelloworldXamarin.iOS.csproj
new file mode 100644
index 0000000000..27cb1c41ab
--- /dev/null
+++ b/examples/csharp/HelloworldXamarin/iOS/HelloworldXamarin.iOS.csproj
@@ -0,0 +1,110 @@
+<?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>{62336DF0-60D8-478F-8140-B3CB089B417E}</ProjectGuid>

+    <ProjectTypeGuids>{FEACFBD2-3405-455C-9665-78FE426C6842};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>

+    <OutputType>Exe</OutputType>

+    <RootNamespace>HelloworldXamarin.iOS</RootNamespace>

+    <AssemblyName>HelloworldXamarin.iOS</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;</DefineConstants>

+    <ErrorReport>prompt</ErrorReport>

+    <WarningLevel>4</WarningLevel>

+    <CodesignKey>iPhone Developer</CodesignKey>

+    <MtouchDebug>true</MtouchDebug>

+    <MtouchNoSymbolStrip>true</MtouchNoSymbolStrip>

+    <MtouchFastDev>true</MtouchFastDev>

+    <IOSDebuggerPort>45216</IOSDebuggerPort>

+    <MtouchLink>None</MtouchLink>

+    <MtouchArch>x86_64</MtouchArch>

+    <MtouchHttpClientHandler>HttpClientHandler</MtouchHttpClientHandler>

+    <PlatformTarget>x86</PlatformTarget>

+  </PropertyGroup>

+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|iPhone' ">

+    <DebugType>pdbonly</DebugType>

+    <Optimize>true</Optimize>

+    <OutputPath>bin\iPhone\Release</OutputPath>

+    <ErrorReport>prompt</ErrorReport>

+    <WarningLevel>4</WarningLevel>

+    <CodesignKey>iPhone Developer</CodesignKey>

+    <MtouchFloat32>true</MtouchFloat32>

+    <CodesignEntitlements>Entitlements.plist</CodesignEntitlements>

+    <MtouchLink>SdkOnly</MtouchLink>

+    <MtouchArch>ARM64</MtouchArch>

+    <MtouchHttpClientHandler>HttpClientHandler</MtouchHttpClientHandler>

+    <PlatformTarget>x86</PlatformTarget>

+  </PropertyGroup>

+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|iPhoneSimulator' ">

+    <DebugType>pdbonly</DebugType>

+    <Optimize>true</Optimize>

+    <OutputPath>bin\iPhoneSimulator\Release</OutputPath>

+    <ErrorReport>prompt</ErrorReport>

+    <WarningLevel>4</WarningLevel>

+    <CodesignKey>iPhone Developer</CodesignKey>

+    <MtouchNoSymbolStrip>true</MtouchNoSymbolStrip>

+    <MtouchLink>None</MtouchLink>

+    <MtouchArch>x86_64</MtouchArch>

+    <MtouchHttpClientHandler>HttpClientHandler</MtouchHttpClientHandler>

+    <PlatformTarget>x86</PlatformTarget>

+  </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>

+    <MtouchNoSymbolStrip>true</MtouchNoSymbolStrip>

+    <MtouchFastDev>true</MtouchFastDev>

+    <MtouchFloat32>true</MtouchFloat32>

+    <CodesignEntitlements>Entitlements.plist</CodesignEntitlements>

+    <IOSDebuggerPort>35164</IOSDebuggerPort>

+    <MtouchLink>SdkOnly</MtouchLink>

+    <MtouchArch>ARM64</MtouchArch>

+    <MtouchHttpClientHandler>HttpClientHandler</MtouchHttpClientHandler>

+    <PlatformTarget>x86</PlatformTarget>

+  </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>

+  <Import Project="..\HelloworldXamarin\HelloworldXamarin.projitems" Label="Shared" Condition="Exists('..\HelloworldXamarin\HelloworldXamarin.projitems')" />

+  <Import Project="$(MSBuildExtensionsPath)\Xamarin\iOS\Xamarin.iOS.CSharp.targets" />

+</Project>
\ No newline at end of file
diff --git a/examples/csharp/HelloworldXamarin/iOS/Info.plist b/examples/csharp/HelloworldXamarin/iOS/Info.plist
new file mode 100644
index 0000000000..1663f19452
--- /dev/null
+++ b/examples/csharp/HelloworldXamarin/iOS/Info.plist
@@ -0,0 +1,48 @@
+<?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>HelloworldXamarin</string>
+	<key>CFBundleIdentifier</key>
+	<string>io.grpc.examples.HelloworldXamarin</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1.0</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>MinimumOSVersion</key>
+	<string>8.0</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>UIMainStoryboardFile~ipad</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>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>XSAppIconAssets</key>
+	<string>Assets.xcassets/AppIcon.appiconset</string>
+</dict>
+</plist>
diff --git a/examples/csharp/HelloworldXamarin/iOS/LaunchScreen.storyboard b/examples/csharp/HelloworldXamarin/iOS/LaunchScreen.storyboard
new file mode 100644
index 0000000000..5d2e905aa8
--- /dev/null
+++ b/examples/csharp/HelloworldXamarin/iOS/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/examples/csharp/HelloworldXamarin/iOS/Main.cs b/examples/csharp/HelloworldXamarin/iOS/Main.cs
new file mode 100644
index 0000000000..76b1598577
--- /dev/null
+++ b/examples/csharp/HelloworldXamarin/iOS/Main.cs
@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+using Foundation;
+using UIKit;
+
+namespace HelloworldXamarin.iOS
+{
+    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/examples/csharp/HelloworldXamarin/iOS/Main.storyboard b/examples/csharp/HelloworldXamarin/iOS/Main.storyboard
new file mode 100644
index 0000000000..92a28ce08d
--- /dev/null
+++ b/examples/csharp/HelloworldXamarin/iOS/Main.storyboard
@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="6750" systemVersion="14C109" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="BYZ-38-t0r">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6735" />
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="tne-QT-ifu">
+            <objects>
+                <viewController id="BYZ-38-t0r" customClass="ViewController" 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" />
+                        <subviews>
+                            <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="oBE-Ac-vcx">
+                                <rect key="frame" x="224" y="285" width="152" height="30" />
+                                <state key="normal" title="Hello World, Click Me!">
+                                    <color key="titleShadowColor" white="0.5" alpha="1" colorSpace="calibratedWhite" />
+                                </state>
+                            </button>
+                        </subviews>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite" />
+                        <constraints>
+                            <constraint firstItem="oBE-Ac-vcx" firstAttribute="centerX" secondItem="8bC-Xf-vdC" secondAttribute="centerX" id="HiD-uS-i16" />
+                            <constraint firstItem="oBE-Ac-vcx" firstAttribute="centerY" secondItem="8bC-Xf-vdC" secondAttribute="centerY" id="YgX-7e-bMc" />
+                        </constraints>
+                    </view>
+                    <connections>
+                        <outlet property="Button" destination="oBE-Ac-vcx" id="OkX-0Z-gth" />
+                    </connections>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder" />
+            </objects>
+        </scene>
+    </scenes>
+</document>
diff --git a/examples/csharp/HelloworldXamarin/iOS/ViewController.cs b/examples/csharp/HelloworldXamarin/iOS/ViewController.cs
new file mode 100644
index 0000000000..dfbaf084b6
--- /dev/null
+++ b/examples/csharp/HelloworldXamarin/iOS/ViewController.cs
@@ -0,0 +1,34 @@
+using System;
+
+using UIKit;
+
+namespace HelloworldXamarin.iOS
+{
+    public partial class ViewController : UIViewController
+    {
+        int count = 1;
+
+        public ViewController(IntPtr handle) : base(handle)
+        {
+        }
+
+        public override void ViewDidLoad()
+        {
+            base.ViewDidLoad();
+
+            // Perform any additional setup after loading the view, typically from a nib.
+            Button.AccessibilityIdentifier = "myButton";
+            Button.TouchUpInside += delegate
+            {
+                var title = string.Format("{0} clicks!", count++);
+                Button.SetTitle(title, UIControlState.Normal);
+            };
+        }
+
+        public override void DidReceiveMemoryWarning()
+        {
+            base.DidReceiveMemoryWarning();
+            // Release any cached data, images, etc that aren't in use.		
+        }
+    }
+}
diff --git a/examples/csharp/HelloworldXamarin/iOS/ViewController.designer.cs b/examples/csharp/HelloworldXamarin/iOS/ViewController.designer.cs
new file mode 100644
index 0000000000..2677a068dc
--- /dev/null
+++ b/examples/csharp/HelloworldXamarin/iOS/ViewController.designer.cs
@@ -0,0 +1,25 @@
+//		
+// 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 HelloworldXamarin.iOS
+{
+    [Register("ViewController")]
+    partial class ViewController
+    {
+        [Outlet]
+        UIKit.UIButton Button { get; set; }
+
+        void ReleaseDesignerOutlets()
+        {
+            if (Button != null)
+            {
+                Button.Dispose();
+                Button = null;
+            }
+        }
+    }
+}