file -> new project baseline

samples/xamarin-forms/.nuget/packages.config

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+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="Xamarin.GooglePlayServices" version="27.0.0.0" />
+</packages>

samples/xamarin-forms/App.Droid/App.Droid.csproj

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+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProductVersion>8.0.30703</ProductVersion>
+    <SchemaVersion>2.0</SchemaVersion>
+    <ProjectGuid>{B00E7B6C-1986-4303-A96F-093EE450354A}</ProjectGuid>
+    <ProjectTypeGuids>{EFBA0AD7-5A72-4C68-AF49-83D382785DCF};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
+    <OutputType>Library</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>App.Droid</RootNamespace>
+    <AssemblyName>App.Droid</AssemblyName>
+    <FileAlignment>512</FileAlignment>
+    <AndroidApplication>True</AndroidApplication>
+    <AndroidResgenFile>Resources\Resource.Designer.cs</AndroidResgenFile>
+    <GenerateSerializationAssemblies>Off</GenerateSerializationAssemblies>
+    <AndroidUseLatestPlatformSdk>True</AndroidUseLatestPlatformSdk>
+    <TargetFrameworkVersion>v7.1</TargetFrameworkVersion>
+    <AndroidManifest>Properties\AndroidManifest.xml</AndroidManifest>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>True</DebugSymbols>
+    <DebugType>Full</DebugType>
+    <Optimize>False</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <AndroidUseSharedRuntime>True</AndroidUseSharedRuntime>
+    <AndroidLinkMode>None</AndroidLinkMode>
+    <EmbedAssembliesIntoApk>False</EmbedAssembliesIntoApk>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>PdbOnly</DebugType>
+    <DebugSymbols>True</DebugSymbols>
+    <Optimize>True</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <AndroidUseSharedRuntime>False</AndroidUseSharedRuntime>
+    <AndroidLinkMode>SdkOnly</AndroidLinkMode>
+    <EmbedAssembliesIntoApk>True</EmbedAssembliesIntoApk>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="Mono.Android" />
+    <Reference Include="mscorlib" />
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="MainActivity.cs" />
+    <Compile Include="Resources\Resource.Designer.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="GettingStarted.Xamarin" />
+    <None Include="Resources\AboutResources.txt" />
+    <None Include="Assets\AboutAssets.txt" />
+  </ItemGroup>
+  <ItemGroup>
+    <AndroidResource Include="Resources\layout\Main.axml">
+      <SubType>Designer</SubType>
+    </AndroidResource>
+  </ItemGroup>
+  <ItemGroup>
+    <AndroidResource Include="Resources\values\Strings.xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <AndroidResource Include="Resources\drawable\Icon.png" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="Properties\AndroidManifest.xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\App\App.csproj">
+      <Project>{07439aa6-b949-4834-82bb-a7f9a32b8888}</Project>
+      <Name>App</Name>
+    </ProjectReference>
+    <ProjectReference Include="..\Features\Features.csproj">
+      <Project>{e967a2f0-e61c-4f6a-9d45-8724b75ddd81}</Project>
+      <Name>Features</Name>
+    </ProjectReference>
+    <ProjectReference Include="..\Services.Connected\Services.Connected.csproj">
+      <Project>{a0f6453c-2747-4a20-88e4-6e63026393fa}</Project>
+      <Name>Services.Connected</Name>
+    </ProjectReference>
+    <ProjectReference Include="..\Services.Disconnected\Services.Disconnected.csproj">
+      <Project>{f73c2f12-1cc9-4640-94b5-2bde7592c5ed}</Project>
+      <Name>Services.Disconnected</Name>
+    </ProjectReference>
+    <ProjectReference Include="..\Services.Droid\Services.Droid.csproj">
+      <Project>{90814c7e-aee5-4982-b07f-492ca65786d1}</Project>
+      <Name>Services.Droid</Name>
+    </ProjectReference>
+    <ProjectReference Include="..\Services\Services.csproj">
+      <Project>{21ec734a-b522-4422-908a-f1aa7db3c3bc}</Project>
+      <Name>Services</Name>
+    </ProjectReference>
+    <ProjectReference Include="..\Utility\Utility.csproj">
+      <Project>{d4eeef02-fb99-4a6f-9316-c7a829916164}</Project>
+      <Name>Utility</Name>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(MSBuildExtensionsPath)\Xamarin\Android\Xamarin.Android.CSharp.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+     Other similar extension points exist, see Microsoft.Common.targets.
+		<Target Name="BeforeBuild">
+		</Target>
+		<Target Name="AfterBuild">
+		</Target>
+ -->
+</Project>

samples/xamarin-forms/App.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 you 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");

samples/xamarin-forms/App.Droid/GettingStarted.Xamarin

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+<GettingStarted>
+	<LocalContent>GS\Android\CS\AndroidApp\GettingStarted.html</LocalContent>
+	<EmbeddedNavigation>false</EmbeddedNavigation>
+</GettingStarted>

samples/xamarin-forms/App.Droid/MainActivity.cs

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+using Android.App;
+using Android.Widget;
+using Android.OS;
+
+namespace App.Droid
+{
+    [Activity(Label = "App.Droid", MainLauncher = true, Icon = "@drawable/icon")]
+    public class MainActivity : Activity
+    {
+        protected override void OnCreate(Bundle bundle)
+        {
+            base.OnCreate(bundle);
+
+            // Set our view from the "main" layout resource
+            // SetContentView (Resource.Layout.Main);
+        }
+    }
+}
+

samples/xamarin-forms/App.Droid/Properties/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" android:versionCode="1" android:versionName="1.0" android:installLocation="auto" package="net.reactiveui.samples.reactivetwitter">
+	<uses-sdk android:minSdkVersion="16" />
+	<application android:label="ReactiveTwitter"></application>
+</manifest>

samples/xamarin-forms/App.Droid/Properties/AssemblyInfo.cs

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+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+using Android.App;
+
+// General Information about an assembly is controlled through the following 
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("App.Droid")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("App.Droid")]
+[assembly: AssemblyCopyright("Copyright ©  2017")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+[assembly: ComVisible(false)]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version 
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers 
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

samples/xamarin-forms/App.Droid/Resources/AboutResources.txt

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+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.

samples/xamarin-forms/App.Droid/Resources/layout/Main.axml

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+<?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"
+    >
+</LinearLayout>

samples/xamarin-forms/App.Droid/Resources/values/Strings.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="Hello">Hello World, Click Me!</string>
+    <string name="ApplicationName">App.Droid</string>
+</resources>