How to localize the application (mobile version of the site)?

Question

Mobile development

Hello!
There is a site with different language versions. A mobile version has been created (more precisely, adaptive design).
It is planned to create an application that will launch a mobile version.
The application is planned to be added to Google Play. And, for example, if a Japanese downloads, you need the application (mobile site) to be immediately displayed in Japanese. Do I need to create a separate application for this?
How to set the default language in an application according to the region where the application is distributed?
PS I apologize that the question is asked so clumsily.

Answer 1

You need to determine the user's system preferred language and when loading the application, take data with strings corresponding to this language from the desired resource (which should ALREADY be contained in the application).
The application is the same for all languages: the main thing is the XML resources with text strings for each language that you must create and place inside the application.