import React from 'react'; import PropTypes from 'prop-types'; import { createStackNavigator } from 'react-navigation'; import LibraryScreen from '../screens/Library'; import SvgTabLibrary from '../components/icons/Svg.TabLibrary'; const Icon = ({ focused }) => ; Icon.propTypes = { // required focused: PropTypes.bool.isRequired }; export default createStackNavigator( { LibraryMain: { screen: LibraryScreen } }, { headerMode: 'none', navigationOptions: { tabBarLabel: 'Library', tabBarIcon: Icon } } );