How to create a variable from the content of an EditText?

Question

Android

Hello! There is a separate Settings activity in which there are only EditText and Button (OK). The idea is this:
- We write something in the EditText
- We press the Button (OK) and here ..... we need to save what we wrote in the EditText as a global variable (sometext).
Those. this variable is needed in MainActivity.
Or this variable can be stored in some other way.
In general, you can store in xml (res/values/settings.xml), but how to store the value from EditText in settings.xml?
Thanks in advance for any suggestions or solutions.

Answer 1

There are quite a few ways here. As for the tools of the android itself, 2 things come to mind at once:
1) startActivityForResult (I think it's best for your task) startandroid.ru/ru/uroki/vse-uroki-spiskom/68-urok...
2) SharedPreferences startandroid.ru/ru /uroki/vse-uroki-spiskom/73-urok...
or store the data in a singleton class, or just in a static field

Answer 2

Because preferences must persist between app launches, use SharedPreferences to save preferences .

Answer 3

In Sharpe, I used a static class for this, but by googling I realized that Java doesn’t have a static class especially.
I came across here stackoverflow.com/questions/7486012/static-classes...
Maybe it will help somehow.