navigationOptions: ({ navigation }) => {
  const { routeName, routes } = navigation.state;
  let params = routes && routes[1] && routes[1].params;
  return {
    tabBarVisible:
      params && params.hideTabBar != null ? !params.hideTabBar : true,
    swipeEnabled:
      params && params.hideTabBar != null ? !params.hideTabBar : true
  };
},