Routing or navigation allows applications to between different screens. Its vital to a mobile app as it provides context to user about where they are, decouple user actions between screens and move between them, provide a state machine like model of the whole app.

Navigator works for both IOS and android.

import React, { Component } from 'react';
import { Text, Navigator, TouchableHighlight } from 'react-native';

export default class NavAllDay extends Component {
  render() {
    return (
        initialRoute={{ title: 'Awesome Scene', index: 0 }}
        renderScene={(route, navigator) =>
          <Text>Hello {route.title}!</Text>
        style={{padding: 100}}

Routes to Navigator are provided as objects. You also provide a renderScene function that renders the scene for each route object. initialRoute is used to specify the first route.