react-native-navigation/example/src/app.js

import { Platform } from 'react-native';
import { Navigation } from 'react-native-navigation';
import registerScreens from './screens';

// screen related book keeping
registerScreens();

const tabs = [{
    label: 'Navigation',
    screen: 'example.Types',
    icon: require('../img/list.png'),
    title: 'Navigation Types',
}, {
    label: 'Actions',
    screen: 'example.Actions',
    icon: require('../img/swap.png'),
    title: 'Navigation Actions',
}];

if (Platform.OS === 'android') {
    tabs.push({
        label: 'Transitions',
        screen: 'example.Transitions',
        icon: require('../img/transform.png'),
        title: 'Navigation Transitions',
    });
}

// this will start our app
Navigation.startTabBasedApp({
    tabs,
    tabsStyle: {
        tabBarBackgroundColor: '#003a66',
        navBarButtonColor: '#ffffff',
        tabBarButtonColor: '#ffffff',
        navBarTextColor: '#ffffff',
        tabBarSelectedButtonColor: '#ff505c',
        navigationBarColor: '#003a66',
        navBarBackgroundColor: '#003a66',
        statusBarColor: '#002b4c',
        tabFontFamily: 'BioRhyme-Bold',
    },
    appStyle: {
        tabBarBackgroundColor: '#003a66',
        navBarButtonColor: '#ffffff',
        tabBarButtonColor: '#ffffff',
        navBarTextColor: '#ffffff',
        tabBarSelectedButtonColor: '#ff505c',
        navigationBarColor: '#003a66',
        navBarBackgroundColor: '#003a66',
        statusBarColor: '#002b4c',
        tabFontFamily: 'BioRhyme-Bold',
    },
    drawer: {
        left: {
            screen: 'example.Types.Drawer'
        }
    }
});