NewPage

import React, { Component } from 'react';
import {
  StyleSheet,
  Text,
  View,
  TouchableOpacity,

} from 'react-native';

import { NavigationActions } from 'react-native';

export default class NewPage extends Component {
  render() {
    return (

      <View>
          <TouchableOpacity style={{ width: "90%", height: "100%" }}
		//here is the problem, I want to navigate to screen defined in the App.js NavigationApp (First: {screen: FirstScreen})
          onPress={() => this.props.navigation.navigate('First') />
      </View>

    );
  }
}