kangaroo/js/navigator/AppNavigators.js

import {createAppContainer,createSwitchNavigator} from "react-navigation"
import {createStackNavigator} from "react-navigation-stack"
import WelcomePage from"../page/WelcomePage"
import LoginPage from"../page/LoginPage"
import HomePage from "../page/HomePage"

const InitNavigator = createStackNavigator({
    LoginPage:{
        screen:LoginPage,
        navigationOptions:{
            header:null
        }
    },
    WelcomePage:{
        screen:WelcomePage,
        navigationOptions:{
            header:null
        }
    }
})
const MainNavigator = createStackNavigator({
    HomePage:{
        screen:HomePage,
        navigationOptions:{
            header:null
        }
    }
})
export default createAppContainer(createSwitchNavigator({
    Init:InitNavigator,
    // Main:MainNavigator
},{
    navigationOptions:{
        header:null
    }
}))