Creating our app's entry point

Let's start our app's code by creating the entry point for our app: index.js . We import src/main.js in this file to use a common root component for our code base. Moreover, we will register the app with the name carBooking:

/*** index.js ***/

import { AppRegistry } from 'react-native';
import App from './src/main';
AppRegistry.registerComponent('carBooking', () => App);

Let's start building our src/main.js by adding a map component:

/*** src/main.js ** */

import React from 'react';
import { View, StyleSheet } from 'react-native';
import MapView from 'react-native-maps';

export default class Main extends React.Component {
  constructor(props) {
    super(props);
    this.initialRegion = {
      latitude: 37.78825,
      longitude: -122.4324,
      latitudeDelta...