Provide Xamarin samples with a custom login

[mraible]

Most of our SDKs have samples. For our mobile SDKs, we're trying to improve developer docs to explicitly state that it's unlikely you can embed the Sign-In Widget and you're better off building a custom UI. Here's a snippet of the docs I'm writing:

The good news is our mobile SDKs provide support for you to build your own UI.

- Android:
    - [Sign in with your own UI](https://github.com/okta/okta-oidc-android#Sign-in-with-your-own-UI)
    - [Custom Sign In Example](https://github.com/okta/samples-android/tree/master/custom-sign-in)
- iOS:
    - [Authenticate a User](https://github.com/okta/okta-auth-swift#authenticate-a-user)
    - [Okta iOS Custom Sign In Example](https://github.com/okta/samples-ios/tree/master/custom-sign-in)
- React Native
    - todo: https://github.com/okta/okta-react-native has no docs like Android does
    - [Okta React Native Custom Sign In Example](https://github.com/okta/samples-js-react-native/tree/master/custom-sign-in)
- Xamarin
	- todo: link to code section of Xamarin SDK README that shows code for custom UI
    - todo: link to custom sign in example

I need help with the last two items for Xamarin. Thanks!

[bryanapellanes-okta]

@mraible Thanks for your inquiry! The Xamarin Sdk should be considered in a very early alpha state and is under development to bring it to a 1.0 release. Because of this, the documentation you seek does not yet exist but will definitely be addressed as we make progress on the backlog.

[mraible]

Thanks, @bryanapellanes-okta. I'll note that in the developer docs. In the meantime, I noticed today we have some unfriendly comments on this post from 2018.

[mraible]

Interesting note: the comment from kennethone was originally:

There are so many typos in this code

IntentExtensions.cs needs to add to top

using OpenId.AppAuth;

private static readonly Uri ConfigurationEndpoint = Uri.Parse($"{Configuration.OrgUrl}/oauth2/default/.well-known/openid-configuration");

should be

private static readonly Android.Net.Uri ConfigurationEndpoint = Android.Net.Uri.Parse($"{Configuration.OrgUrl}/oauth2/default/.well-known/openid-configuration");

[brett-estabrook]

I have a use for this, so I was wondering how this is coming along. Even just some quick notes on how to do this with the xamarin sdk would be nice.

[bryanapellanes-okta]

@brett-estabrook Thank you for reaching out! The Xamarin Sdk currently only supports OIDC redirect flow. There is work in progress to support a custom UI using the latest available Okta Apis, however, it is unclear when this work will be complete due to other internal priorities. Your interest is noted and should hopefully affect prioritization. Thanks again!

[jneterer]

Found this thread and wanted to call out the need for support to create a custom login experience using the Xamarin SDK. I also think it would be helpful if the README.md reflected that only the OIDC redirect flow is supported. Thank you!

[jphines57]

Hi @mraible @bryanapellanes-okta Any progress on new SDK functionality for custom login? The hosted login page is a great first steps but we need to customize how we implement Okta, similar to the flexibility of the Okta-Auth SDK but for Xamarin. Thanks!

[bryanapellanes-okta]

@jphines57 @jneterer @brett-estabrook Thank you all for expressing interest in this! I will confer internally with our decision makers advising them of your interest. I hope to make your voices heard so as to influence priorities. Stay tuned!

[rdebault]

Matt, have you had any luck finding a solution for this? I am attempting to do the same now.