import { createStackNavigator } from 'react-navigation' ; import { LaunchScreen } from '@src/pages/Auth/Launch/LaunchScreen' ; import { LoginScreen } from '@src/pages/Auth/Login/LoginScreen' ; export const AuthStack = createStackNavigator ( { Launch : { screen : LaunchScreen , } , Login : { screen : LoginScreen , } , } , { navigationOptions : { header : null } , } ) ;