Most automated way to get mobile web as copy of existing Android native app?

I found a lot of questions kinda "How to make Android native app from mobile version of website". But at least nothing about reverse converting. I have native Android app. The app is very simple. Most of app pages looking like this: enter image description here​

The only way of navigation used at the app - is buttons + system button "Back". Short list of used Android UI elements. No any modern Android UI features. No any usage of phone hardware as camera, sensors, ect.

So, the question is: how to get mobile website, which is absolutely copy of the existing native application with maximally automation of this process and maximally usage of existing app resources.

Specific part of the question: enter image description here ​ Every page of my app is using its layout. And there are 231 pages app have. So, there is the same number of layouts. Is any way to use these layouts for creation of web pages?

I understand, that it seems, that there are no services or methods which are allow to put Android layout in xml to input and get from output its web copy in html & css. But, maybe, some ways of partial automation of this process? 231 pcs - it's pretty much.

Will be glad to see any advices. As any links, suggestions, opinions.

PS Additional question: Any advised application or webapp for web UI graphical creating (kinda in Android Studio for layouts) - ?