Merge pull request #44653 from jennyf19/patch-2

Update Android doc to not use manifest

Author: American-Dipper

articles/active-directory/develop/msal-net-xamarin-android-considerations.md

@@ -3,7 +3,7 @@ title: Xamarin Android considerations (MSAL.NET) | Azure
 titleSuffix: Microsoft identity platform
 description: Learn about specific considerations when using Xamarin Android with the Microsoft Authentication Library for .NET (MSAL.NET).
 services: active-directory
-author: TylerMSFT
+author: jmprieur
 manager: CelesteDG
 
 ms.service: active-directory
@@ -80,6 +80,23 @@ The `AndroidManifest.xml` should contain the following values:
 </activity>
 ```
 
+Or, you can [create the activity in code](https://docs.microsoft.com/xamarin/android/platform/android-manifest#the-basics) and not manually edit `AndroidManifest.xml`. For that, you must create a class that has the `Activity` and `IntentFilter` attribute. A class that represents the same values of the above xml would be:
+
+```csharp
+  [Activity]
+  [IntentFilter(new[] { Intent.ActionView },
+        Categories = new[] { Intent.CategoryBrowsable, Intent.CategoryDefault },
+        DataHost = "auth",
+        DataScheme = "msal{client_id}")]
+  public class MsalActivity : BrowserTabActivity
+  {
+  }
+```
+
+### XamarinForms 4.3.X manifest
+
+The code generated by XamarinForms 4.3.x sets the `package` attribute to `com.companyname.{appName}` in the `AndroidManifest.xml`. You might want to change the value to be same as the `MainActivity.cs` namespace, if you use the `DataScheme` as `msal{client_id}`.
+
 ## Use the embedded web view (optional)
 
 By default MSAL.NET uses the system web browser, which enables you to get SSO with Web applications and other apps. In some rare cases, you might want to specify that you want to use the embedded web view. For more information, see [MSAL.NET uses a Web browser](msal-net-web-browsers.md) and [Android system browser](msal-net-system-browser-android-considerations.md).
@@ -124,4 +141,4 @@ More details and samples are provided in the [Android Specific Considerations](h
 
 | Sample | Platform | Description |
 | ------ | -------- | ----------- |
-|[https://github.com/Azure-Samples/active-directory-xamarin-native-v2](https://github.com/azure-samples/active-directory-xamarin-native-v2) | Xamarin iOS, Android, UWP | A simple Xamarin Forms app showcasing how to use MSAL to authenticate MSA and Azure AD via the AADD v2.0 endpoint, and access the Microsoft Graph with the resulting token. <br>![Topology](media/msal-net-xamarin-android-considerations/topology.png) |
+|[https://github.com/Azure-Samples/active-directory-xamarin-native-v2](https://github.com/azure-samples/active-directory-xamarin-native-v2) | Xamarin iOS, Android, UWP | A simple Xamarin Forms app showcasing how to use MSAL to authenticate MSA and Azure AD via the AADD v2.0 endpoint, and access the Microsoft Graph with the resulting token. <br>![Topology](media/msal-net-xamarin-android-considerations/topology.png) |