如何从React Native ios项目中的components文件夹访问js文件

Question

I am unable to access components folder in React Native Project IOS.

I am getting following error:

Unable to resolve module ./Login from ....../ReactNative/ReactNativeProject/components/App.js: Unable to find this module in its module map or any of the node_modules directories under ......./ReactNative/ReactNativeProject/components/Login.j and its parent directories.

I have referred following link: http://caroaguilar.com/post/react-native-navigation-tutorial/

index.ios.js (ReactNativeProject/index.ios.js)

"use strict";

import React, { AppRegistry } from 'react-native';
import App from './components/App';

AppRegistry.registerComponent('ReactNativeProject', () => App);

App.js (ReactNativeProject/components/App.js)

  'use strict'

    import React, {Component} from 'react';
    import {
        AppRegistry,
        StyleSheet,
        NavigatorIOS,
    } from 'react-native';
    var Login = require('./Login');

    class App extends Component {
        render() {
            return (
              <NavigatorIOS
                style={styles.navigationContainer}
                initialRoute={{
                title: "Login Page",
                component: Login,
              }} />
          );
        }
    }

    var styles = StyleSheet.create({
        navigationContainer: {
            flex: 1
        }
    });

    export default App;

Login.js (ReactNativeProject/components/Login.js)

"use strict";
    import React, {Component} from 'react';
    import {
        StyleSheet,
        Text,
        TextInput
    } from 'react-native';
    import Button from 'react-native-button';
    import styles from './login';


    class Login extends Component {

        constructor(props) {
            super(props);
            this.state = {
              username: "",
              password: "",

            };
        }

        render() {
            return (

              <View style={styles.container}>
                  <View style={styles.textContainer}>
                      <TextInput
                          style={styles.inputUsername}
                          placeholder="Enter email ID"
                          value={this.state.username}
                          clearButtonMode = 'while-editing'/>
                      <TextInput
                          style={styles.inputPassword}
                          placeholder="Enter Password"
                          value={this.state.password}
                          password={true}
                          secureTextEntry={true}
                          clearButtonMode = 'while-editing' />

                     <Button style={styles.login}
                             styleDisabled={{color: 'red'}}>
                             Login
                      </Button>
                  </View>
              </View>
            );
        }

    module.exports = Login;

Answer 1

I have tried this so far and got the solution for this.

One mistake I did in App.js :

I have replaced var Login = require('./Login');

by

import Login from './Login';

The js files under components folder also changed as follows, except App.js

Changes in Login.js:

class Login extends Component {
   }

changed to

class Login extends React.Component {
}

Answer 2

Well I did this way to import js files from 1 back root directory and root directory of entire project structure.

I have following directory structure.

App.js file at root directory

Splash.js file at MyApp -> Splash -> Splash.js

Home.js file at MyApp -> Home -> Home.js

TextViewComponent file at MyApp -> CustomComponents -> TextViewComponent.js

How I accessed all files across the all files.

Hope this would help you too.

Done.