Which stack of technologies and libraries to choose for the android client?

Question

Android

Hello!
I develop REST applications on android. There is a REST server on Spring MVC, now I started to saw a client on android. Since mob. Since I just started writing applications, I would like to choose the most popular, standard, modern stack of technologies and libraries for it. So that everything is as modern and functional as possible, so as not to lag behind colleagues). In general, I try to shy away the maximum of hares with one shot). Briefly about the project. Server application on Springe, Spring MVC, Spring Security, REST API. In the Android client, there will be lists, a database, a request to the server, data caching on the device, chat, pictures will be transferred to the server.
I ask because the android world is very dynamic and I could fall behind somewhere.
In general, colleagues, tell me the most optimal stack of technologies and libraries for android applications like VK?

Answer 1

there is a spring mobile like that, but I didn’t poke it and would do it on a retrofit, for example, if rest.
stop-stop.. chat via rest? hmmm.... hmmmmmm.....