Evolve feature branch (#117)

* Initial import of evolve features

* [Android] Add Xamarin.Forms.Platform.Android.AppLinks project

* [iOS] Fix issues with c# 6 features on iOS AppLinks

* Added naive stanza to update-docs-windows.bat to produce Pages docs. Not tested. (#69)

* Update packages

* Add AppLinks android nuspec and fix linker issues

* Fix build

* Fix nusepc

* Fix nuspec

* Update android support nugets to 23.2.1

* Update Xamarin.UITest

* Add CardView

* [iOS] Fix app link for CoreSpotlight

* [Android] Update AppLinks android support libs

* Add Newtonsoft.Json dependency to nuspec

* Fix NRE when setting ControlTemplate to null

* Move to ModernHttpClient for download

* Try fix build

* Preserve android app links

* Fix margin issue

* General coding and simple fixes

6 files changed, 272 insertions, 0 deletions

diff --git a/Xamarin.Forms.Platform.Android.AppLinks/AndroidAppLinks.cs b/Xamarin.Forms.Platform.Android.AppLinks/AndroidAppLinks.cs
new file mode 100644
index 00000000..b1639da7
--- /dev/null
+++ b/Xamarin.Forms.Platform.Android.AppLinks/AndroidAppLinks.cs
@@ -0,0 +1,115 @@
+using System;
+using System.Threading.Tasks;
+using Android.Content;
+using Android.Gms.AppIndexing;
+using Android.Gms.Common.Apis;
+using Android.Runtime;
+using IndexingAction = Android.Gms.AppIndexing.Action;
+using Android.App;
+
+namespace Xamarin.Forms.Platform.Android.AppLinks
+{
+	[Preserve(AllMembers = true)]
+	public class AndroidAppLinks : IAppLinks, IDisposable
+	{
+		readonly GoogleApiClient _client;
+
+		bool _disposed;
+
+		public static bool IsInitialized { get; private set; }
+
+		public static Context Context { get; private set; }
+
+		public static void Init(Activity activity)
+		{
+			if (IsInitialized)
+				return;
+			IsInitialized = true;
+
+			Context = activity;
+		}
+
+		public AndroidAppLinks(Context context)
+		{
+			_client = new GoogleApiClient.Builder(context).AddApi(AppIndex.API).Build();
+			_client.Connect();
+		}
+
+		public void DeregisterLink(IAppLinkEntry appLink)
+		{
+			RemoveFromIndexItemAsync(appLink.AppLinkUri.ToString());
+		}
+
+		public void DeregisterLink(Uri appLinkUri)
+		{
+			RemoveFromIndexItemAsync(appLinkUri.ToString());
+		}
+
+		public async void RegisterLink(IAppLinkEntry appLink)
+		{
+			await IndexItemAsync(appLink);
+		}
+
+		public void Dispose()
+		{
+			Dispose(true);
+		}
+
+		protected virtual void Dispose(bool isDisposing)
+		{
+			if (isDisposing && !_disposed)
+			{
+				_disposed = true;
+				_client.Disconnect();
+				_client.Dispose();
+			}
+		}
+
+		static IndexingAction BuildIndexAction(IAppLinkEntry appLink)
+		{
+			Thing item = new Thing.Builder().SetName(appLink.Title).SetDescription(appLink.Description).SetUrl(global::Android.Net.Uri.Parse(appLink.AppLinkUri.AbsoluteUri)).Build();
+			Thing thing = new IndexingAction.Builder(IndexingAction.TypeView).SetObject(item).SetActionStatus(IndexingAction.StatusTypeCompleted).Build();
+			var indexAction = thing.JavaCast<IndexingAction>();
+			return indexAction;
+		}
+
+		async Task IndexItemAsync(IAppLinkEntry appLink)
+		{
+			IndexingAction indexAction = BuildIndexAction(appLink);
+
+			if (_client.IsConnected && appLink.IsLinkActive)
+			{
+				Statuses resultStart = await AppIndex.AppIndexApi.StartAsync(_client, indexAction);
+				if (resultStart.IsSuccess)
+				{
+					var aL = appLink as AppLinkEntry;
+					if (aL != null)
+					{
+						aL.PropertyChanged += async (sender, e) =>
+						{
+							if (e.PropertyName == AppLinkEntry.IsLinkActiveProperty.PropertyName)
+							{
+								if (appLink.IsLinkActive)
+								{
+									Statuses resultStartAgain = await AppIndex.AppIndexApi.StartAsync(_client, indexAction);
+								}
+								else
+								{
+									Statuses resultEnd = await AppIndex.AppIndexApi.EndAsync(_client, indexAction);
+								}
+							}
+						};
+					}
+				}
+			}
+		}
+
+		void RemoveFromIndexItemAsync(string identifier)
+		{
+			if (_client.IsConnected)
+			{
+			}
+		}
+	}
+}
+
diff --git a/Xamarin.Forms.Platform.Android.AppLinks/Properties/AssemblyInfo.cs b/Xamarin.Forms.Platform.Android.AppLinks/Properties/AssemblyInfo.cs
new file mode 100644
index 00000000..330d609a
--- /dev/null
+++ b/Xamarin.Forms.Platform.Android.AppLinks/Properties/AssemblyInfo.cs
@@ -0,0 +1,27 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+
+// Information about this assembly is defined by the following attributes.
+// Change them to the values specific to your project.
+
+[assembly: AssemblyTitle("Xamarin.Forms.Platform.Android.AppLinks")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("")]
+[assembly: AssemblyCopyright("Xamarin")]
+[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/Xamarin.Forms.Platform.Android.AppLinks/Resources/AboutResources.txt b/Xamarin.Forms.Platform.Android.AppLinks/Resources/AboutResources.txt
new file mode 100644
index 00000000..10f52d46
--- /dev/null
+++ b/Xamarin.Forms.Platform.Android.AppLinks/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/Xamarin.Forms.Platform.Android.AppLinks/Resources/values/Strings.xml b/Xamarin.Forms.Platform.Android.AppLinks/Resources/values/Strings.xml
new file mode 100644
index 00000000..08334fa4
--- /dev/null
+++ b/Xamarin.Forms.Platform.Android.AppLinks/Resources/values/Strings.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="library_name">Xamarin.Forms.Platform.Android.AppLinks</string>
+</resources>
diff --git a/Xamarin.Forms.Platform.Android.AppLinks/Xamarin.Forms.Platform.Android.AppLinks.csproj b/Xamarin.Forms.Platform.Android.AppLinks/Xamarin.Forms.Platform.Android.AppLinks.csproj
new file mode 100644
index 00000000..08864b51
--- /dev/null
+++ b/Xamarin.Forms.Platform.Android.AppLinks/Xamarin.Forms.Platform.Android.AppLinks.csproj
@@ -0,0 +1,75 @@
+<?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>
+    <ProjectTypeGuids>{EFBA0AD7-5A72-4C68-AF49-83D382785DCF};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
+    <ProjectGuid>{42DB052E-0909-45D2-8240-187F99F393FB}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <RootNamespace>Xamarin.Forms.Platform.Android.AppLinks</RootNamespace>
+    <MonoAndroidAssetsPrefix>Assets</MonoAndroidAssetsPrefix>
+    <MonoAndroidResourcePrefix>Resources</MonoAndroidResourcePrefix>
+    <AndroidResgenClass>Resource</AndroidResgenClass>
+    <AndroidResgenFile>Resources\Resource.designer.cs</AndroidResgenFile>
+    <AndroidUseLatestPlatformSdk>True</AndroidUseLatestPlatformSdk>
+    <AssemblyName>Xamarin.Forms.Platform.Android.AppLinks</AssemblyName>
+    <TargetFrameworkVersion>v6.0</TargetFrameworkVersion>
+  </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>
+    <ConsolePause>false</ConsolePause>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>full</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release</OutputPath>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <AndroidUseSharedRuntime>false</AndroidUseSharedRuntime>
+    <ConsolePause>false</ConsolePause>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Xml" />
+    <Reference Include="System.Core" />
+    <Reference Include="Mono.Android" />
+    <Reference Include="Xamarin.GooglePlayServices.Basement">
+      <HintPath>..\packages\Xamarin.GooglePlayServices.Basement.29.0.0.1\lib\MonoAndroid41\Xamarin.GooglePlayServices.Basement.dll</HintPath>
+    </Reference>
+    <Reference Include="Xamarin.GooglePlayServices.Base">
+      <HintPath>..\packages\Xamarin.GooglePlayServices.Base.29.0.0.1\lib\MonoAndroid41\Xamarin.GooglePlayServices.Base.dll</HintPath>
+    </Reference>
+    <Reference Include="Xamarin.GooglePlayServices.AppIndexing">
+      <HintPath>..\packages\Xamarin.GooglePlayServices.AppIndexing.29.0.0.1\lib\MonoAndroid41\Xamarin.GooglePlayServices.AppIndexing.dll</HintPath>
+    </Reference>
+    <Reference Include="Xamarin.Android.Support.v4">
+      <HintPath>..\packages\Xamarin.Android.Support.v4.23.3.0\lib\MonoAndroid403\Xamarin.Android.Support.v4.dll</HintPath>
+    </Reference>
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Resources\Resource.designer.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="AndroidAppLinks.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="Resources\AboutResources.txt" />
+    <None Include="packages.config" />
+  </ItemGroup>
+  <ItemGroup>
+    <AndroidResource Include="Resources\values\Strings.xml" />
+  </ItemGroup>
+  <Import Project="$(MSBuildExtensionsPath)\Xamarin\Android\Xamarin.Android.CSharp.targets" />
+  <ItemGroup>
+    <ProjectReference Include="..\Xamarin.Forms.Core\Xamarin.Forms.Core.csproj">
+      <Project>{57B8B73D-C3B5-4C42-869E-7B2F17D354AC}</Project>
+      <Name>Xamarin.Forms.Core</Name>
+    </ProjectReference>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/Xamarin.Forms.Platform.Android.AppLinks/packages.config b/Xamarin.Forms.Platform.Android.AppLinks/packages.config
new file mode 100644
index 00000000..b488c682
--- /dev/null
+++ b/Xamarin.Forms.Platform.Android.AppLinks/packages.config
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="Xamarin.Android.Support.v4" version="23.3.0" targetFramework="MonoAndroid60" />
+  <package id="Xamarin.GooglePlayServices.AppIndexing" version="29.0.0.1" targetFramework="MonoAndroid60" />
+  <package id="Xamarin.GooglePlayServices.Base" version="29.0.0.1" targetFramework="MonoAndroid60" />
+  <package id="Xamarin.GooglePlayServices.Basement" version="29.0.0.1" targetFramework="MonoAndroid60" />
+</packages>
\ No newline at end of file