feature: add netcoreapp build (#1418)

Author: jkoritzinsky

src/Directory.build.targets

@@ -18,6 +18,8 @@
   <PropertyGroup Condition="'$(TargetFramework)' == 'MonoAndroid70'">
     <DefineConstants>$(DefineConstants);MONO;ANDROID</DefineConstants>
   </PropertyGroup>
+  <PropertyGroup Condition="'$(TargetFramework)' == 'netcoreapp1.0'">
+  </PropertyGroup>
 
   <ItemGroup Condition=" '$(TargetFramework)' == 'uap10.0' ">
     <PackageReference Include="Microsoft.NETCore.UniversalWindowsPlatform " Version="5.2.2" />

src/ReactiveUI/Platforms/net45/PlatformRegistrations.cs

@@ -13,7 +13,7 @@ public void Register(Action<Func<object>, Type> registerFunction)
         {
             registerFunction(() => new ComponentModelTypeConverter(), typeof(IBindingTypeConverter));
             RxApp.TaskpoolScheduler = TaskPoolScheduler.Default;
-            RxApp.MainThreadScheduler = new WaitForDispatcherScheduler(() => DispatcherScheduler.Current);
+            RxApp.MainThreadScheduler = DefaultScheduler.Instance;
         }
     }
 }

src/ReactiveUI/Platforms/netcoreapp1.0/PlatformRegistrations.cs

@@ -0,0 +1,18 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MS-PL license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using System.Reactive.Concurrency;
+
+namespace ReactiveUI
+{
+    public class PlatformRegistrations : IWantsToRegisterStuff
+    {
+        public void Register(Action<Func<object>, Type> registerFunction)
+        {
+            RxApp.TaskpoolScheduler = TaskPoolScheduler.Default;
+            RxApp.MainThreadScheduler = DefaultScheduler.Instance;
+        }
+    }
+}

src/ReactiveUI/ReactiveUI.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>netstandard1.1;net45;uap10.0;Xamarin.iOS10;Xamarin.Mac20;MonoAndroid70</TargetFrameworks>
+    <TargetFrameworks>netstandard1.1;net45;uap10.0;Xamarin.iOS10;Xamarin.Mac20;MonoAndroid70;netcoreapp1.0</TargetFrameworks>
     <AssemblyName>ReactiveUI</AssemblyName>
     <RootNamespace>ReactiveUI</RootNamespace>
     <Description>A MVVM framework that integrates with the Reactive Extensions for .NET to create elegant, testable User Interfaces that run on any mobile or desktop platform. Supports Xamarin.iOS, Xamarin.Android, Xamarin.Mac, Xamarin Forms, WPF, Windows Forms, Windows Phone 8.1, Windows Store and Universal Windows Platform (UWP).</Description>
@@ -51,7 +51,11 @@
   <ItemGroup Condition=" '$(TargetFramework)' == 'MonoAndroid70' ">
     <Compile Include="Platforms\android\**\*.cs" />
     <Compile Include="Platforms\xamarin-common\**\*.cs" />
-  </ItemGroup>  
+  </ItemGroup>
+  
+  <ItemGroup Condition=" '$(TargetFramework)' == 'netcoreapp1.0' ">
+    <Compile Include="Platforms\netcoreapp1.0\**\*.cs" />
+  </ItemGroup>
 
   <ItemGroup>
     <None Update="VariadicTemplates.tt" Generator="TextTemplatingFileGenerator" LastGenOutput="VariadicTemplates.cs" />