This article is a further topic of last WebView version. I mentioned in that article, the pro for WebView version is easy to implement. However, using that approach, we will totally depend on the bot development, there is no much things to do in Xamarin development.
Also, Google has published lots of restricts to use WebView.
In this article, I will introduce another approach which is also recommended by myself. We are going to use Direct Line Service to communicate with our Bot using Xamarin app.