text: import React from "react";
  import { View, Text } from "react-native";
  import { ProfileHeaderButton } from '../components/ProfileHeaderButton';
  import { NewTweetButton } from "../components/NewTweetButton";
  import { Icon } from 'react-native-elements';
  
  export class Notifications extends React.Component {
    static navigationOptions = ({ navigation }) => ({
      title: 'Notifications',
      headerLeft: <ProfileHeaderButton navigation={navigation} />,
      headerRight: <NewTweetButton />,
      tabBarIcon: () => (
        <Icon name="bell-o" type="font-awesome" />
      )
    });
  
    render() {
      return (
        <View>
          <Text>Screen</Text>
        </View>
      );
    }
  }
  