ecency-mobile/src/index.js

import React from 'react';
import { Provider, connect } from 'react-redux';
import { PersistGate } from 'redux-persist/integration/react';
import { IntlProvider } from 'react-intl';
import { useScreens } from 'react-native-screens';
import { setTopLevelNavigator } from './navigation/service';

import { flattenMessages } from './utils/flattenMessages';
import messages from './config/locales';

import Application from './screens/application';
import { store, persistor } from './redux/store/store';

useScreens();

const _renderApp = ({ locale }) => (
  <PersistGate loading={null} persistor={persistor}>
    <IntlProvider locale={locale} messages={flattenMessages(messages[locale])}>
      <Application />
    </IntlProvider>
  </PersistGate>
);

const mapStateToProps = state => ({
  locale: state.application.language,
});

const App = connect(mapStateToProps)(_renderApp);

export default () => {
  return (
    <Provider store={store}>
      <App
        ref={navigatorRef => {
          setTopLevelNavigator(navigatorRef);
        }}
      />
    </Provider>
  );
};