React Native Tutorial

index.ios.js

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

import React from 'react';
import {
  AppRegistry,
  Image,
  StyleSheet,
  Text,
  View,
} from 'react-native';

const styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
    backgroundColor: '#F5FCFF',
  },
});

const Greeting = ({ name }) => (
  <Text>Hello, {name}!</Text>
);
Greeting.propTypes = { name: React.PropTypes.string.isRequired };

const bananas = {
  uri: 'https://upload.wikimedia.org/wikipedia/commons/d/de/Bananavarieties.jpg',
};

const Bananas = ({ pic }) => (
  <Image source={pic} style={{ width: 193, height: 110 }} />
);
Bananas.propTypes = { pic: React.PropTypes.object.isRequired };

const HelloWorld = () => (
  <View style={styles.container}>
    <Greeting name="Alan" />
    <Greeting name="Emiliano" />
    <Greeting name="Josh" />
    <Bananas pic={bananas} />
  </View>
);

AppRegistry.registerComponent('HelloWorld', () => HelloWorld);