Global state in React Native

Question

I am developing a React Native application.

I want to save the user id of the person who is logged in and then check if the user is logged in in every single compone

Answer 1

I usually create a global.js containing:

module.exports = {
   screen1: null,
};

And get the value of the state on the screen

import GLOBAL from './global.js'

constructor() {

    GLOBAL.screen1 = this;

}

Now you can use it anywhere like so:

GLOBAL.screen1.setState({
    var: value
});