React :: Tab View - Firebase Auth State

I have setup tab view application using Framework7 CLI and was able to implement Firebase Auth and set user object to state.

App.jsx

import React from 'react';

import StyledFirebaseAuth from 'react-firebaseui/StyledFirebaseAuth';

import firebase from 'firebase/app';
import 'firebase/auth';
import 'firebase/firestore';

import { App, Panel, Views, View, Popup, Page, Navbar, Toolbar, NavRight, Link, Block, LoginScreen, List, ListItem, Icon, } from 'framework7-react';

import routes from '../js/routes';

// Configure Firebase.
// For Firebase JS SDK v7.20.0 and later, measurementId is optional
const firebaseConfig = {
    apiKey: "xxx",
    authDomain: "xxx",
    databaseURL: "xxx",
    projectId: "xxx",
    storageBucket: "xxx",
    messagingSenderId: "xxx",
    appId: "xxx",
    measurementId: "xxx"
};

firebase.initializeApp(firebaseConfig);

// Configure FirebaseUI.
// firebase.auth.GoogleAuthProvider.PROVIDER_ID, firebase.auth.FacebookAuthProvider.PROVIDER_ID
// FirebaseUI config.
const uiConfig = {
    // Popup signin flow rather than redirect flow.
    signInFlow: 'popup',
    signInSuccessUrl: '/',
    signInOptions: [
        {
            provider: firebase.auth.PhoneAuthProvider.PROVIDER_ID,
            recaptchaParameters: {
                type: 'image', // 'audio'
                size: 'invisible', // 'invisible' or 'compact'
                badge: 'bottomleft' //' bottomright' or 'inline' applies to invisible.
            },
            defaultCountry: 'LK',
        },
    ],
    // tosUrl and privacyPolicyUrl accept either url string or a callback
    // function.
    // Terms of service url/callback.
    tosUrl: '<your-tos-url>',
    // Privacy policy url/callback.
    privacyPolicyUrl: function () {
        window.location.assign('<your-privacy-policy-url>');
    },
    callbacks: {
        // Avoid redirects after sign-in.
        signInSuccessWithAuthResult: () => true
    }
};

export default class extends React.Component {
    constructor() {
        super();
        this.state = {
            // Framework7 Parameters
            f7params: {
                name: 'uNation', // App name
                theme: 'auto', // Automatic theme detection
                // App root data
                data: function () {
                    return {
                        // Demo products for Catalog section
                        products: [
                            {
                                id: '1',
                                title: 'Apple iPhone 8',
                                description: 'Lorem ipsum dolor sit amet, consectetur adipisicing elit. Nisi tempora similique reiciendis, error nesciunt vero, blanditiis pariatur dolor, minima sed sapiente rerum, dolorem corrupti hic modi praesentium unde saepe perspiciatis.'
                            },
                            {
                                id: '2',
                                title: 'Apple iPhone 8 Plus',
                                description: 'Velit odit autem modi saepe ratione totam minus, aperiam, labore quia provident temporibus quasi est ut aliquid blanditiis beatae suscipit odio vel! Nostrum porro sunt sint eveniet maiores, dolorem itaque!'
                            },
                            {
                                id: '3',
                                title: 'Apple iPhone X',
                                description: 'Expedita sequi perferendis quod illum pariatur aliquam, alias laboriosam! Vero blanditiis placeat, mollitia necessitatibus reprehenderit. Labore dolores amet quos, accusamus earum asperiores officiis assumenda optio architecto quia neque, quae eum.'
                            },
                        ]
                    };
                },
                // App routes
                routes: routes,
                // Register service worker
                serviceWorker: {
                    path: '/service-worker.js',
                },
            },
            // Login screen demo data
            username: 'Yeshan',
            password: 'Perera',
            isSignedIn: false,
        };
    }

    render() {
        return (
            <App params={this.state.f7params}>

                {/* Left panel with cover effect*/}
                <Panel left cover swipe={true}>
                    <View>
                        <Page>
                            <Navbar title="Navigation" />
                            {
                                this.state.isSignedIn ? (
                                    <List>
                                        <ListItem link="/create-group/" view="#view-home" panelClose title="Create Group" />
                                        <ListItem link="/find-group/" view="#view-home" panelClose title="Find Group" />
                                    </List>
                                ) : (
                                        <List>
                                            <ListItem link="/about/" view="#view-home" panelClose title="About" />
                                            <ListItem link="/form/" view="#view-home" panelClose title="Form" />
                                        </List>
                                    )
                            }
                        </Page>
                    </View>
                </Panel>

                {/* Right panel with reveal effect*/}
                <Panel right reveal swipe={true}>
                    <View>
                        <Page>
                            <Navbar title="My Profile" />
                            {
                                this.state.isSignedIn ? (
                                    <Block>
                                        <p>Welcome {firebase.auth().currentUser.displayName}! You are now signed-in!</p>
                                        <List>
                                            <ListItem link="#" title="Logout" onClick={() => firebase.auth().signOut()} panelClose>
                                                <Icon slot="media" f7="power" color="primary"></Icon>
                                            </ListItem>
                                        </List>
                                    </Block>
                                ) : (
                                        <Block>
                                            <p>Please login to your account.</p>
                                            <List>
                                                <ListItem link="#" title="Login" loginScreenOpen="#my-login-screen" panelClose>
                                                    <Icon slot="media" f7="person_badge_plus" color="primary"></Icon>
                                                </ListItem>
                                            </List>
                                        </Block>
                                    )
                            }
                        </Page>
                    </View>
                </Panel>

                {/* Views/Tabs container */}
                <Views tabs className="safe-areas">

                    {/* Tabbar for switching views-tabs */}
                    <Toolbar tabbar labels bottom>
                        <Link tabLink="#view-home" tabLinkActive iconIos="f7:house_fill" iconAurora="f7:house_fill" iconMd="f7:house_fill" text="Home" />
                        <Link tabLink="#view-catalog" iconIos="f7:chat_bubble_2" iconAurora="f7:chat_bubble_2" iconMd="f7:chat_bubble_2" text="Discussion" />
                        <Link tabLink="#view-settings" iconIos="f7:waveform_path" iconAurora="f7:waveform_path" iconMd="f7:waveform_path" text="Referendum" />
                    </Toolbar>

                    {/* Your main view/tab, should have "view-main" class. It also has "tabActive" prop */}
                    <View id="view-home" main tab tabActive url="/" />

                    {/* Catalog View */}
                    <View id="view-catalog" name="catalog" tab url="/catalog/" />

                    {/* Settings View */}
                    <View id="view-settings" name="settings" tab url="/settings/" />
                </Views>

                {/* Popup */}
                <Popup id="my-popup">
                    <View>
                        <Page>
                            <Navbar title="Popup">
                                <NavRight>
                                    <Link popupClose>Close</Link>
                                </NavRight>
                            </Navbar>
                            <Block>
                                <p>Popup content goes here.</p>
                            </Block>
                        </Page>
                    </View>
                </Popup>

                <LoginScreen id="my-login-screen">
                    <View>
                        <Page loginScreen>
                            <List form>
                                <StyledFirebaseAuth uiConfig={uiConfig} firebaseAuth={firebase.auth()} />
                            </List>
                        </Page>
                    </View>
                </LoginScreen>
            </App>
        )
    }

    alertLoginData() {
        this.$f7.dialog.alert('Username: ' + this.state.username + '<br>Password: ' + this.state.password, () => {
            this.$f7.loginScreen.close();
        });
    }

    // Make sure we un-register Firebase observers when the component unmounts.
    componentWillUnmount() {
        this.unregisterAuthObserver();
    }

    componentDidMount() {
        this.$f7.dialog.preloader();
        this.unregisterAuthObserver = firebase.auth().onAuthStateChanged(user => {
            var theUser;
            if (user) {
                console.log("user is logged in!");
                theUser = user;
                this.setState({
                    isSignedIn: theUser
                });
                // User is signed in.
                this.$f7.dialog.close();
                let userLoggedInToast = this.$f7.toast.create({
                    text: 'Logged In Successfully!',
                    closeTimeout: 3000,
                });
                userLoggedInToast.open();
            } else {
                // No user is signed in.
                console.log("user is not logged in!")
                theUser = null;
                this.$f7.dialog.close();
                let requiredLoginToast = this.$f7.toast.create({
                    text: 'Please sign in!',
                    closeTimeout: 3000,
                });
                requiredLoginToast.open();
            }
            console.log("onAuthStateChanged :: theUser :: ", theUser);
        });
        this.$f7ready(() => {
            // Call F7 APIs here
        });
    }
}

Question is How do I access isSignedIn state from home.jsx

Home.jsx

import React from 'react';
import { Page, Navbar, NavLeft, NavTitle, NavRight, Link, Block, BlockTitle, List, ListItem, Row, Col, Button } from 'framework7-react';

export default class extends React.Component {
    constructor() {
        super();
        this.state = {
            products: this.$f7.data.products,
        }
    }
    render() {
        return (
            <Page name="home">
                {/* Top Navbar */}
                <Navbar sliding={false}>
                    <NavLeft>
                        <Link iconIos="f7:menu" iconAurora="f7:menu" iconMd="f7:menu" panelOpen="left" />
                    </NavLeft>
                    <NavTitle sliding>xYx</NavTitle>
                    <NavRight>
                        <Link iconIos="f7:person_alt" iconAurora="f7:person_alt" iconMd="f7:person_alt" panelOpen="right" />
                    </NavRight>
                </Navbar>

                {/* Page content */}
                <Block strong>
                    <p>Please installed. This is an example of tabs-layout application. The main point of such tabbed layout is that each tab
                    contains independent view with its own routing and navigation.</p>
                    <p>Each tab/view may have different layout, different navbar type (dynamic, fixed or static) or without
                    navbar like this tab.</p>
                </Block>
                <BlockTitle>Catalog</BlockTitle>
                <List>
                    {this.state.products.map((product) => (
                        <ListItem
                            key={product.id}
                            title={product.title}
                            link={`/product/${product.id}/`}
                        />
                    ))}
                </List>
                <BlockTitle>Navigation</BlockTitle>
                <List>
                    <ListItem link="/about/" title="About" />
                    <ListItem link="/form/" title="Form" />
                </List>
                <BlockTitle>Modals</BlockTitle>
                <Block strong>
                    <Row>
                        <Col width="50">
                            <Button fill raised popupOpen="#my-popup">Popup</Button>
                        </Col>
                        <Col width="50">
                            <Button fill raised loginScreenOpen="#my-login-screen">Login Screen</Button>
                        </Col>
                    </Row>
                </Block>
                <BlockTitle>Panels</BlockTitle>
                <Block strong>
                    <Row>
                        <Col width="50">
                            <Button fill raised panelOpen="left">Left Panel</Button>
                        </Col>
                        <Col width="50">
                            <Button fill raised panelOpen="right">Right Panel</Button>
                        </Col>
                    </Row>
                </Block>
                <List>
                    <ListItem
                        title="Dynamic (Component) Route"
                        link="/dynamic-route/blog/45/post/125/?foo=bar#about"
                    />
                    <ListItem
                        title="Default Route (404)"
                        link="/load-something-that-doesnt-exist/"
                    />
                    <ListItem
                        title="Request Data & Load"
                        link="/request-and-load/user/123456/"
                    />
                </List>
            </Page>
        );
    }
    componentDidMount() {
        //
    }
}

Please help! Thanks