[samples] Add Tasks to debug Samples in VSCode (#5880)

Update [`tasks.json`][0] to add the following tasks to VS Code:

  * `build-sample`
  * `run-sample`
  * `build-sample-under-dotnet`
  * `run-sample-under-dotnet`

These tasks build or run one of the following projects; when running
the task, the developer will be prompted for which project to use:

  * `samples/HelloWorld/HelloWorld.csproj`
  * `samples/HelloWorld/HelloWorld.DotNet.csproj`
  * `samples/VSAndroidApp/VSAndroidApp.csproj`

These projects may also be debugged within VSCode.

[0]: https://code.visualstudio.com/docs/editor/tasks-v1

.vscode/launch.json

@@ -27,7 +27,23 @@
           "args": [ ],
           "cwd": "${workspaceRoot}",
           "stopAtEntry": false
-        }
+        },
+        {
+          "name": "Debug Sample",
+          "type": "mono",
+          "request": "attach",
+          "preLaunchTask": "run-sample",
+          "address": "localhost",
+          "port": 10000
+        },
+        {
+          "name": "Debug Sample Under DotNet",
+          "type": "mono",
+          "request": "attach",
+          "address": "localhost",
+          "port": 10000,
+          "preLaunchTask": "run-sample-under-dotnet",
+        },
     ],
     "inputs": [
       {

.vscode/tasks.json

@@ -86,7 +86,55 @@
           "problemMatcher": [
               "$msCompile"
           ]
+        },
+        {
+          "label": "build-sample",
+          "type": "shell",
+          "command": "bin/${input:configuration}/bin/xabuild ${input:project} /t:${input:target} /p:Configuration=${input:configuration}",
+          "group": {
+              "kind": "build",
+              "isDefault": true
+          },
+          "problemMatcher": [
+              "$msCompile"
+          ]
+        },
+        {
+          "label": "run-sample",
+          "type": "shell",
+          "command": "bin/${input:configuration}/bin/xabuild ${input:project} /restore \"/t:Install;_Run\" /p:AndroidAttachDebugger=${input:attach} /p:Configuration=${input:configuration}",
+          "group": {
+              "kind": "build",
+              "isDefault": true
+          },
+          "problemMatcher": [
+              "$msCompile"
+          ]
+        },
+        {
+          "label": "build-sample-under-dotnet",
+          "type": "shell",
+          "command": "${env:HOME}/android-toolchain/dotnet/dotnet build ${input:project} -p:Configuration=${input:configuration} -t:${input:target}",
+          "group": {
+              "kind": "build",
+              "isDefault": true
+          },
+          "problemMatcher": [
+              "$msCompile"
+          ]
       },
+        {
+          "label": "run-sample-under-dotnet",
+          "type": "shell",
+          "command": "${env:HOME}/android-toolchain/dotnet/dotnet build ${input:project} \"-t:Run\" --no-restore -p:TargetFramework=${input:targetframework} -p:Configuration=${input:configuration} -p:AndroidAttachDebugger=${input:attach}",
+          "group": {
+              "kind": "build",
+              "isDefault": true
+          },
+          "problemMatcher": [
+              "$msCompile"
+          ]
+        },
     ],
     "inputs": [
       {
@@ -95,6 +143,50 @@
         "default": "Debug",
         "description": "The Build Configuration",
         "options": [ "Debug", "Release"]
-      }
+      },
+      {
+        "id": "attach",
+        "type": "pickString",
+        "default": "Build",
+        "description": "Attach Debugger?",
+        "options": [
+            "true",
+            "false",
+        ]
+      },
+      {
+        // Add additional projects here. They will be available in the drop down
+        // in vscode.
+        "id": "project",
+        "type": "pickString",
+        "default": "samples/HelloWorld/HelloWorld.csproj",
+        "description": "Pick the Project you want to build.",
+        "options": [
+            "samples/HelloWorld/HelloWorld.csproj",
+            "samples/HelloWorld/HelloWorld.DotNet.csproj",
+            "samples/VSAndroidApp/VSAndroidApp.csproj",
+        ]
+      },
+      {
+        "id": "targetframework",
+        "type": "pickString",
+        "default": "Build",
+        "description": "Select TargetFramework",
+        "options": [
+            "net6.0-android",
+        ]
+      },
+      {
+        "id": "target",
+        "type": "pickString",
+        "default": "Build",
+        "description": "Select MSBuild Target to run.",
+        "options": [
+            "Build",
+            "Install",
+            "SignAndroidPackage",
+            "Clean"
+        ]
+      },
     ]
 }

samples/HelloWorld/HelloLibrary/HelloLibrary.DotNet.csproj

@@ -0,0 +1,6 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net6.0-android</TargetFramework>
+    <RootNamespace>HelloLibrary</RootNamespace>
+  </PropertyGroup>
+</Project>

samples/HelloWorld/HelloWorld.DotNet.csproj

@@ -0,0 +1,15 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net6.0-android</TargetFramework>
+    <OutputType>Exe</OutputType>
+    <RootNamespace>HelloWorld</RootNamespace>
+  </PropertyGroup>
+  <ItemGroup>
+    <ProjectReference Include="HelloLibrary\HelloLibrary.DotNet.csproj" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Remove="Properties\AssemblyInfo.cs" />
+    <!-- <Compile Remove="Resources\Resource.designer.cs" /> -->
+    <Compile Remove="HelloLibrary\**\*.cs" />
+  </ItemGroup>
+</Project>

samples/NuGet.config

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+  <packageSources>
+    <add key="local-xa" value="../bin/BuildDebug/nuget-unsigned" />
+  </packageSources>
+  <disabledPackageSources />
+</configuration>