Как скрыть навигатор нижней панели вкладок на определенном экране?

Я решил это с помощью:

signupFlow.navigationOptions = ({navigation}) =>{
  let tabBarVisible = true;
  let routeName = navigation.state.routes[navigation.state.index].routeName
  if ( routeName == 'done' ) {
      tabBarVisible = false
  }
  return {
      tabBarVisible,
  }
}

const navigator = createSwitchNavigator({
  resolveAuth: ResolveAuthScreen,
  default: createBottomTabNavigator({
    unAuthenticatedFeed: UnAuthenticatedFeedScreen,
    camera: UnavailableScreen,
    signupFlow: signupFlow
  },
  {
    defaultNavigationOptions: ({ navigation }) => ({
      tabBarIcon: ({ focused, horizontal, tintColor }) => {
        const { routeName } = navigation.state
        let iconName
        if (routeName === 'unAuthenticatedFeed') {
          iconName = focused ? 'home' : 'home'
          return <Feather name = {iconName} size = {25} color = {tintColor} />
        }
        else if (routeName === 'camera') {
          iconName = focused ? 'camera' : 'camera'
          return <Feather name = {iconName} size = {25} color = {tintColor} />
        }
        else if (routeName === 'signupFlow') {
          iconName = focused ? 'login' : 'login'
          return <Entypo name = {iconName} size = {25} color = {tintColor} />
        }
      },
    }),
    tabBarOptions: {
      activeTintColor: 'blue',
      inactiveTintColor: 'gray',
      showLabel: false
    },
})}