screenWithNav.js

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

const Screen1 = ( {navigation} ) => (
  <View style={styles.container}>
    <Text>Screen 1</Text>
    <Button
      title="Go To Screen 2"
      onPress={() => navigation.navigate('Screen2')}>
    </Button>
    <Button
      title="Go To Screen 3"
      onPress={() => navigation.navigate('Screen2')}>
    </Button>
  </View>
)