Include Xamarin.iOS/Mac facade directories (#47)

Fixes compilation against assemblies that have references to netstandard.dll, such as Xamarin.Forms.

* Add sample that references Xamarin.Forms

* Build HelloForms for simulator, disable code signing

Co-authored-by: Jonathan Peppers <jonathan.peppers@microsoft.com>

samples/HelloForms/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -0,0 +1,68 @@
+{
+  "images": [
+    {
+      "filename": "AppIcon-16.png",
+      "size": "16x16",
+      "scale": "1x",
+      "idiom": "mac"
+    },
+    {
+      "filename": "AppIcon-16@2x.png",
+      "size": "16x16",
+      "scale": "2x",
+      "idiom": "mac"
+    },
+    {
+      "filename": "AppIcon-32.png",
+      "size": "32x32",
+      "scale": "1x",
+      "idiom": "mac"
+    },
+    {
+      "filename": "AppIcon-32@2x.png",
+      "size": "32x32",
+      "scale": "2x",
+      "idiom": "mac"
+    },
+    {
+      "filename": "AppIcon-128.png",
+      "size": "128x128",
+      "scale": "1x",
+      "idiom": "mac"
+    },
+    {
+      "filename": "AppIcon-128@2x.png",
+      "size": "128x128",
+      "scale": "2x",
+      "idiom": "mac"
+    },
+    {
+      "filename": "AppIcon-256.png",
+      "size": "256x256",
+      "scale": "1x",
+      "idiom": "mac"
+    },
+    {
+      "filename": "AppIcon-256@2x.png",
+      "size": "256x256",
+      "scale": "2x",
+      "idiom": "mac"
+    },
+    {
+      "filename": "AppIcon-512.png",
+      "size": "512x512",
+      "scale": "1x",
+      "idiom": "mac"
+    },
+    {
+      "filename": "AppIcon-512@2x.png",
+      "size": "512x512",
+      "scale": "2x",
+      "idiom": "mac"
+    }
+  ],
+  "info": {
+    "version": 1,
+    "author": "xcode"
+  }
+}

samples/HelloForms/Assets.xcassets/Contents.json

@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

samples/HelloForms/HelloForms.csproj

@@ -0,0 +1,16 @@
+<Project Sdk="Xamarin.Legacy.Sdk">
+  <PropertyGroup>
+    <TargetFramework>xamarin.ios10</TargetFramework>
+    <OutputType>Exe</OutputType>
+    <SupportedOSPlatformVersion>14.0</SupportedOSPlatformVersion>
+    <Platform>iPhoneSimulator</Platform>
+    <EnableCodeSigning>false</EnableCodeSigning>
+    <MtouchArch>x86_64</MtouchArch>
+  </PropertyGroup>
+  <ItemGroup>
+    <PackageReference Include="Xamarin.Forms" Version="5.0.0.2545" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="Info.plist" />
+  </ItemGroup>
+</Project>

samples/HelloForms/Info.plist

@@ -0,0 +1,38 @@
+<?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>UIDeviceFamily</key>
+    <array>
+        <integer>1</integer>
+        <integer>2</integer>
+    </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>MinimumOSVersion</key>
+    <string>14.0</string>
+    <key>CFBundleDisplayName</key>
+    <string>HelloForms</string>
+    <key>CFBundleIdentifier</key>
+    <string>com.companyname.HelloForms</string>
+    <key>CFBundleVersion</key>
+    <string>1.0</string>
+    <key>UILaunchStoryboardName</key>
+    <string>LaunchScreen</string>
+    <key>CFBundleName</key>
+    <string>HelloForms</string>
+    <key>XSAppIconAssets</key>
+    <string>Assets.xcassets/AppIcon.appiconset</string>
+</dict>
+</plist>

samples/HelloForms/Main.cs

@@ -0,0 +1,15 @@
+using Xamarin.Forms;
+
+// Use an attribute from the Xamarin.Forms library
+[assembly: ResolutionGroupName("Anything")]
+
+namespace Hello
+{
+    public class Application
+    {
+        static void Main(string[] args)
+        {
+        
+        }
+    }
+}

samples/HelloForms/Resources/values/strings.xml

@@ -0,0 +1,4 @@
+<resources>
+    <string name="legacy">Hello, Xamarin.Android</string>
+    <string name="net6">Hello, .NET 6!</string>
+</resources>

samples/samples.sln

@@ -13,6 +13,8 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "tests", "tests", "{CFDB900E
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "samples", "samples", "{149B3F40-F69B-4A1B-A499-F533B9717040}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "HelloForms", "HelloForms\HelloForms.csproj", "{7A2D8CB7-F2DA-4789-97C0-B5E4112546D1}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -59,6 +61,18 @@ Global
 		{5B390F99-D000-4DB0-98C4-8FC0F4AC2D9D}.Release|x64.Build.0 = Release|Any CPU
 		{5B390F99-D000-4DB0-98C4-8FC0F4AC2D9D}.Release|x86.ActiveCfg = Release|Any CPU
 		{5B390F99-D000-4DB0-98C4-8FC0F4AC2D9D}.Release|x86.Build.0 = Release|Any CPU
+		{7A2D8CB7-F2DA-4789-97C0-B5E4112546D1}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{7A2D8CB7-F2DA-4789-97C0-B5E4112546D1}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{7A2D8CB7-F2DA-4789-97C0-B5E4112546D1}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{7A2D8CB7-F2DA-4789-97C0-B5E4112546D1}.Debug|x64.Build.0 = Debug|Any CPU
+		{7A2D8CB7-F2DA-4789-97C0-B5E4112546D1}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{7A2D8CB7-F2DA-4789-97C0-B5E4112546D1}.Debug|x86.Build.0 = Debug|Any CPU
+		{7A2D8CB7-F2DA-4789-97C0-B5E4112546D1}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{7A2D8CB7-F2DA-4789-97C0-B5E4112546D1}.Release|Any CPU.Build.0 = Release|Any CPU
+		{7A2D8CB7-F2DA-4789-97C0-B5E4112546D1}.Release|x64.ActiveCfg = Release|Any CPU
+		{7A2D8CB7-F2DA-4789-97C0-B5E4112546D1}.Release|x64.Build.0 = Release|Any CPU
+		{7A2D8CB7-F2DA-4789-97C0-B5E4112546D1}.Release|x86.ActiveCfg = Release|Any CPU
+		{7A2D8CB7-F2DA-4789-97C0-B5E4112546D1}.Release|x86.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -67,6 +81,7 @@ Global
 		{5E34FB3D-487C-433A-8A49-96444046888D} = {149B3F40-F69B-4A1B-A499-F533B9717040}
 		{67EB8FFE-826F-445A-A8E6-8DAFB3A2E65F} = {149B3F40-F69B-4A1B-A499-F533B9717040}
 		{5B390F99-D000-4DB0-98C4-8FC0F4AC2D9D} = {CFDB900E-AD95-43C6-BF87-FEE446EBF78B}
+		{7A2D8CB7-F2DA-4789-97C0-B5E4112546D1} = {149B3F40-F69B-4A1B-A499-F533B9717040}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {A49B40B9-4E4D-4B19-B124-9B19C41B5759}

src/Xamarin.Legacy.Sdk/Sdk/Xamarin.Legacy.iOS.targets

@@ -44,8 +44,13 @@
       Condition=" '$(_FixupsNeeded)' == 'true' and $([MSBuild]::IsOSPlatform ('osx')) "
       AfterTargets="GetReferenceAssemblyPaths">
     <PropertyGroup>
-      <TargetFrameworkDirectory>$(FrameworkPathOverride)</TargetFrameworkDirectory>
+      <TargetFrameworkDirectory>$(FrameworkPathOverride);$(FrameworkPathOverride)Facades/</TargetFrameworkDirectory>
     </PropertyGroup>
+    <ItemGroup>
+      <DesignTimeFacadeDirectoryRoots Include="$(FrameworkPathOverride)" />
+      <DesignTimeFacadeDirectoryRoots Include="$(FrameworkPathOverride)Facades/" />
+      <DesignTimeFacadeDirectories Include="$(FrameworkPathOverride)Facades/" />
+    </ItemGroup>
   </Target>
   <Import Project="Xamarin.Hacks.targets" Condition=" '$(_FixupsNeeded)' == 'true' " />
-</Project>
+</Project>

src/Xamarin.Legacy.Sdk/Sdk/Xamarin.Legacy.macOS.targets

@@ -43,8 +43,13 @@
       Condition=" '$(_FixupsNeeded)' == 'true' and $([MSBuild]::IsOSPlatform ('osx')) "
       AfterTargets="GetReferenceAssemblyPaths">
     <PropertyGroup>
-      <TargetFrameworkDirectory>$(FrameworkPathOverride)</TargetFrameworkDirectory>
+      <TargetFrameworkDirectory>$(FrameworkPathOverride);$(FrameworkPathOverride)Facades/</TargetFrameworkDirectory>
     </PropertyGroup>
+    <ItemGroup>
+      <DesignTimeFacadeDirectoryRoots Include="$(FrameworkPathOverride)" />
+      <DesignTimeFacadeDirectoryRoots Include="$(FrameworkPathOverride)Facades/" />
+      <DesignTimeFacadeDirectories Include="$(FrameworkPathOverride)Facades/" />
+    </ItemGroup>
   </Target>
   <Import Project="Xamarin.Hacks.targets" Condition=" '$(_FixupsNeeded)' == 'true' " />
 </Project>