Base Codigo Native Base - React Native

import React, { Component } from 'react';
import {
  Container,
  Header,
  Content,
  Card,
  CardItem,
  Body,
  Text,
  Button,
  Form,
  Item,
  Input,
  Label,
  List,
  ListItem,
  Radio,
  Right,
  Left,
} from 'native-base';

import { FlatList, TouchableOpacity } from 'react-native';

import { FontAwesome5 } from '@expo/vector-icons';

import * as firebase from 'firebase';

// Your web app's Firebase configuration
var firebaseConfig = {
  apiKey: 'AIzaSyApmI9dEQ0ZhXYdO0ofl3F7LuwfuuZ4Q-U',
  authDomain: 'aulapdm2020-c43f0.firebaseapp.com',
  databaseURL: 'https://aulapdm2020-c43f0.firebaseio.com',
  projectId: 'aulapdm2020-c43f0',
  storageBucket: 'aulapdm2020-c43f0.appspot.com',
  messagingSenderId: '660803083439',
  appId: '1:660803083439:web:2dde11a2a9086c372ec85a',
};
try {
  // Initialize Firebase
  firebase.initializeApp(firebaseConfig);
} catch (e) {
  console.log('O App recarregou');
}

export default class BDFirebase extends Component {
  constructor(props) {
    super(props);
    this.state = {
      arrayUsuario: null,
    };

    firebase
      .database()
      .ref('usuario/001')
      .set({
        nome: 'Jackson',
        telefone: '84 98800-5500',
        cpf: '000.555.000-50',
      })
      .then(() => {
        console.log('Inserido!');
      })
      .catch((error) => {
        console.log(error);
      });
  }

  render() {
    const { route } = this.props;
    const { nome } = route.params;

    return (
      <Container>
        <Content scrollEnabled={true}>
          <Card>
            <CardItem>
              <Body>
                <Text>Bem vindo {nome}</Text>
              </Body>
            </CardItem>
          </Card>
        </Content>
      </Container>
    );
  }
}