React Native vs Flutter - React Native statefull component

Landing.js

import React, { Component } from 'react';      // <-- 1
import { Button, Image, SafeAreaView, ScrollView, Text, View } from 'react-native';
import { store } from './store/store';        // <-- 2
import { DatePicker } from './DatePicker';      // <-- 3
import { FilmBrief } from './FilmBrief';        // <-- 3
import { FilmDetails } from './FilmDetails';    // <-- 3
import { ShowingTimes } from './ShowingTimes';  // <-- 3

export class Landing extends Component {  // <-- 4
  constructor(props) {                    // <-- 5
    super(props);
    this.state = {...store.getState()};                     // <-- 6
    store.subscribe(() => this.setState(store.getState())); // <-- 6
  }

  componentDidMount() {                                // <-- 7
    store.dispatch({type: "FETCH_FILMS"});
  }

  render() {
    // This is where the subcomponents will be drawn.  // <-- 8
  }
}