message: Removed badge because not supported on Android
diff: -import React, {useState} from 'react';
  +import React from 'react';
  import {TabBar, TabBarItem} from 'navigation-react-native';
  import Home from './Home';
  import Notifications from './Notifications';
  -export default ({tweets, follows}) => {
  - const [notified, setNotified] = useState(false);
  - return (
  +export default ({tweets, follows}) => (
  <TabBar bottomTabs={true} swipeable={false}>
  <TabBarItem title="Home">
  <Home tweets={tweets} follows={follows} />
  </TabBarItem>
  - <TabBarItem
  - title="Notifications"
  - badge={!notified ? follows.length : null}
  - onPress={() => {setNotified(true)}}>
  + <TabBarItem title="Notifications">
  <Notifications follows={follows} />
  </TabBarItem>
  </TabBar>
  );
  -};
  