How are website applications created?

Question

Java

I don’t quite understand how applications are created for existing Internet resources. That is, there is a certain site, for example, with a news feed. How can I implement the same news feed in the application? I can assume that this requires the API of this site, which takes the material for the tape, for example, from the database, and the same API with the same requests is used in the application, which will already be a site parser, that is, it will be made up not using Android Studio, but using HTML, CSS and Javascript, and work, respectively, will be through the webView. But this requires the site API. Or is it still possible to assemble the application using the studio tools, and do without the API, creating requests to the Java database from scratch? how. I will be grateful for the answer.

Answer 1

A regular Android application is created, data is loaded/sent via the site API (web service) with a regular GET/POST request to the URL

Answer 2

There are solutions like www.appsgeyser.com - a web page or an archive with it at the input, apk at the output
. Or there is PhoneGap / Cordova, for example.