App.js

/**
 * Sample React Native App
 * https://github.com/facebook/react-native
 * @flow
 */

import React, {
  Component
} from 'react';
import {
  Platform,
  StyleSheet,
  Text,
  View
} from 'react-native';

const instructions = Platform.select({
  ios: 'Press Cmd+R to reload,\n' +
    'Cmd+D or shake for dev menu',
  android: 'Double tap R on your keyboard to reload,\n' +
    'Shake or press menu button for dev menu',
});

type Props = {};
export default class App extends Component < Props > {
  render() {
    return ( <
      View style = {
        styles.container
      } >
      <
      Text style = {
        styles.welcome
      } >
      Welcome to React Native!
      <
      /Text> <
      Text style = {
        styles.instructions
      } >
      To get started, edit App.js <
      /Text> <
      Text style = {
        styles.instructions
      } > {
        instructions
      } <
      /Text> < /
      View >
    );
  }
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
    backgroundColor: '#F5FCFF',
  },
  welcome: {
    fontSize: 20,
    textAlign: 'center',
    margin: 10,
  },
  instructions: {
    textAlign: 'center',
    color: '#333333',
    marginBottom: 5,
  },
});