How to implement live preview in 360 on Android?

Hello, I have looked through all the questions and articles on this blog, but I could not find an answer to my question. How can I implement a live preview from a theta camera on Android in 360 format with scroll and scale (not a rectangular format) like it is done in the RICOH THETA application on the Play Market? At the moment I am using a solution with MJpegView and MJpegInputStream (theta-api2.1-android-sdk), but it is in rectangular format. Maybe there are ready-made plugins, I searched information in google, but did not find anything useful.

There are different strategies. You can use A-Frame in a webview.

Alternately, you can use Unity with SteamVR.