Is it possible to display activity on the icon in the smartphone if the application was created from the site?

Question

Android

Maybe the question is not clear.
For example, I created an application from the site here appsgeyser.com or on Android studio I
installed it on my smartphone. An icon has appeared
. Is there a way to display activity on the icon, for example, a chat. If I received a message, then the number one is on the icon. By analogy vk, viber and so on.

Answer 1

The app from the site is a Progressive Web App (PWA) .
There is documentation for Android.
Specifically, your question is googled on request pwa icon badge:. This article is the
answer .