Bump to Microsoft.Android.Sdk 10.4.99.51 (#10)

* `$(OutputType)` = `Exe` is what flags an app vs library

dotnet/android#4604

* New `Run` target

dotnet/android#4609

HelloAndroid/HelloAndroid.csproj

@@ -2,5 +2,6 @@
   <PropertyGroup>
     <TargetFramework>netcoreapp5.0</TargetFramework>
     <RuntimeIdentifier>android.21-x86</RuntimeIdentifier>
+    <OutputType>Exe</OutputType>
   </PropertyGroup>
 </Project>

HelloForms.Android/HelloForms.Android.csproj

@@ -2,6 +2,7 @@
   <PropertyGroup>
     <TargetFramework>netcoreapp5.0</TargetFramework>
     <RuntimeIdentifier>android.21-x86</RuntimeIdentifier>
+    <OutputType>Exe</OutputType>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Xamarin.Forms" Version="4.5.0.617" GeneratePathProperty="true" />

README.md

@@ -20,20 +20,14 @@ For example, to build the Android project:
 
     dotnet publish HelloAndroid/HelloAndroid.csproj
 
-You can also deploy an Android project to an attached emulator via:
+You can launch the Android project to an attached emulator via:
 
-    dotnet publish -t:Install HelloAndroid/HelloAndroid.csproj
+    dotnet publish HelloAndroid/HelloAndroid.csproj -t:Run
 
-To deploy to a device, you can either modify `$(RuntimeIdentifier)` in
+To deploy and run on a device, you can either modify `$(RuntimeIdentifier)` in
 the `.csproj` or run:
 
-    dotnet publish -t:Install HelloAndroid/HelloAndroid.csproj -r android.21-arm64
-
-To launch the app:
-
-    dotnet build -t:StartAndroidActivity HelloAndroid/HelloAndroid.csproj
-
-_This can also be done at the same time as `dotnet publish -t:Install -t:StartAndroidActivity`. We will eventually add a `Run` target for simplicity._
+    dotnet publish HelloAndroid/HelloAndroid.csproj -t:Run -r android.21-arm64
 
 ### iOS
 

global.json

@@ -1,6 +1,6 @@
 {
     "msbuild-sdks": {
             "Microsoft.iOS.Sdk": "13.21.1-alpha.139",
-            "Microsoft.Android.Sdk": "10.4.99.37"
+            "Microsoft.Android.Sdk": "10.4.99.51"
     }
 }