Who can help with writing a database for the application?

Question

Java

Hello everyone, I have the following task: you need to write an application where some records will be added and everything will be displayed in the list view, like news in VK, I have a question in which direction you need to look so that all people on the network can sit information in real time, that is, 1 person added a post, another updated and he also got it?

Answer 1

firebase is what you need

Answer 2

Here is what you need to understand how it works:
developer.alexanderklimov.ru/android/sqlite
developer.alexanderklimov.ru/android/listview

Answer 3

You need to look towards some kind of bass, like parse.com or backendless