Olololo

import React from 'react';
import { Platform } from 'react-native';
import { createStackNavigator, createBottomTabNavigator } from 'react-navigation';

import TabBarIcon from '../components/TabBarIcon';
import HomeScreen from '../screens/HomeScreen';
import RoomScreen from '../screens/RoomScreen/RoomScreen';
import ServicesScreen from '../screens/ServicesScreen';
import FeedScreen from '../screens/FeedScreen';
import QuestionsScreen from '../screens/QuestionsScreen';
import Colors from '../constants/Colors';

const HomeStack = createStackNavigator({
  Home: HomeScreen,
  Room: RoomScreen
});

HomeStack.navigationOptions = {
  tabBarLabel: "Домой",
  tabBarIcon: ({ focused }) => (
    <TabBarIcon
      focused={focused}
      name={ Platform.OS === 'ios' ? 'ios-home' : 'md-home' }
    />
  ),
};

const FeedStack = createStackNavigator({
  Feed: FeedScreen,
  Questions: QuestionsScreen
});

FeedStack.navigationOptions = {
  tabBarLabel: 'Лента',
  tabBarIcon: ({ focused }) => (
    <TabBarIcon
      focused={focused}
      name={ Platform.OS === 'ios' ? 'ios-notifications' : 'md-notifications' }
    />
  ),
};

const ServicesStack = createStackNavigator({
  Services: ServicesScreen,
});

ServicesStack.navigationOptions = {
  tabBarLabel: 'Сервисы',
  tabBarIcon: ({ focused }) => (
    <TabBarIcon
      focused={focused}
      name={ Platform.OS === 'ios' ? 'ios-cart' : 'md-cart' }
    />
  ),
};

const LKStack = createStackNavigator({
  LK: HomeScreen,
});

LKStack.navigationOptions = {
  tabBarLabel: 'Кабинет',
  tabBarIcon: ({ focused }) => (
    <TabBarIcon
      focused={focused}
      name={ Platform.OS === 'ios' ? 'ios-contact' : 'md-contact' }
    />
  ),
};

export default createBottomTabNavigator({
  HomeStack,
  FeedStack,
  ServicesStack,
  LKStack
},
{
  tabBarOptions: {
    style: {
      backgroundColor: Colors.tabBar,
      height: 60
    },
    showLabel: false
  }

});