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javascript - 它无法识别导入文件中的文件

问题描述

我创建了一个 MenuButton 以及其他 2 个页面，其中一个是 settingScreen，我在两个文件中都导入了 MenuButton，它们似乎工作正常。但是当我在 DrawerNavigator 文件中导入设置屏幕时，它无法识别 MenuButton

Failed to load bundle(http://localhost:8081/index.bundle?platform=ios&dev=true&minify=false) with error:(Unable to resolve module `./Menu/MenuButton` from `/Users/camillebasbous/Project/Menu/SettingScreen.js`: The module `./Menu/MenuButton` could not be found from `/Users/camillebasbous/Project/Menu/SettingScreen.js`. Indeed, none of these files exist:
  * `/Users/camillebasbous/Project/Menu/Menu/MenuButton(.native||.ios.js|.native.js|.js|.ios.json|.native.json|.json|.ios.ts|.native.ts|.ts|.ios.tsx|.native.tsx|.tsx)`
  * `/Users/camillebasbous/Project/Menu/Menu/MenuButton/index(.native||.ios.js|.native.js|.js|.ios.json|.native.json|.json|.ios.ts|.native.ts|.ts|.ios.tsx|.native.tsx|.tsx)` (null))

__38-[RCTCxxBridge loadSource:onProgress:]_block_invoke.228
    RCTCxxBridge.mm:414
___ZL36attemptAsynchronousLoadOfBundleAtURLP5NSURLU13block_pointerFvP18RCTLoadingProgressEU13block_pointerFvP7NSErrorP9RCTSourceE_block_invoke.118
__80-[RCTMultipartDataTask URLSession:streamTask:didBecomeInputStream:outputStream:]_block_invoke
-[RCTMultipartStreamReader emitChunk:headers:callback:done:]
-[RCTMultipartStreamReader readAllPartsWithCompletionCallback:progressCallback:]
-[RCTMultipartDataTask URLSession:streamTask:didBecomeInputStream:outputStream:]
__88-[NSURLSession delegate_streamTask:didBecomeInputStream:outputStream:completionHandler:]_block_invoke
__NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK__
-[NSBlockOperation main]
-[__NSOperationInternal _start:]
__NSOQSchedule_f
_dispatch_call_block_and_release
_dispatch_client_callout
_dispatch_continuation_pop
_dispatch_async_redirect_invoke
_dispatch_root_queue_drain
_dispatch_worker_thread2
_pthread_wqthread
start_wqthread

我尝试过测试另一个页面，经过几次测试后，我意识到这些页面中存在导入的 MenuButton 是导致错误的原因 有没有办法导入已导入另一个要显示的文件，或者我有在drawerNavigation中导入它们，如果是，如何构造代码。谢谢

抽屉导航代码：

import * as React from 'react';
import { Text, View, Image, ScrollView, StyleSheet } from 'react-native';
import {
  createDrawerNavigator,
  createAppContainer,
  DrawerItems,
  SafeAreaView,
} from 'react-navigation';
import SettingScreen from './Menu/SettingScreen'





class Home extends React.Component {
  static navigationOptions = {
    title: 'Home',

  };

  render() {
    return (
      <View style={styles.container}>

        <SettingScreen/>

      </View>
    );
  }
}



const Navigator = createDrawerNavigator(
  {
    Home,

  },
  {
    //drawerType: 'back',
    // drawerPosition: 'right',
    // drawerWidth: 200,
  drawerBackgroundColor: '#262A2C',
    // contentComponent: CustomDrawerContentComponent
  }
);

 export default createAppContainer(Navigator);

const styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'center',
    backgroundColor: '#ecf0f1',

  }
});

设置屏幕代码：

import React from 'react';
import { StyleSheet, Text, View } from 'react-native';
import MenuButton from './Menu/MenuButton'

export default class SettingScreen extends React.Component{
    render(){
        return(
            <View style={styles.container}>
            <MenuButton/>
            <Text style={styles.text}>Settings</Text>
            </View>
        )
    }
}
const styles = StyleSheet.create({
    container: {
        flex: 1,
        backgroundColor: 'rgba(215,215,215,1)',
        alignItems: 'center',
        justifyContent: 'center',
    },
text:{
    fontSize: 30,
    }
});

菜单按钮代码：

import React from 'react';
import {AppRegistry, StyleSheet, View} from "react-native" ;
import Icon from 'react-native-vector-icons/Ionicons'
import {widthPercentageToDP as wp, heightPercentageToDP as hp} from 'react-native-responsive-screen'



export default class MenuButton extends React.Component {
    render() {
        return(

        <View >

        <Icon name= "ios-menu" size={wp('12%')} color='#9B9B9B' style={{position: 'absolute', top: wp('-82.5%'), left: wp('-46%'), }}></Icon>

                 </View>
        ) 
    }
}


AppRegistry.registerComponent('Menu', () => FixedDimensionsBasics);

标签： javascriptreact-nativeimportfrontendnavigation-drawer

解决方案

您在导入时使用的路径是相对于您的文件的。因此，由于所有内容都在同一个文件夹中，您必须像这样更正导入路径：

  1. 抽屉导航器代码

    import SettingScreen from './SettingScreen'

  2. 在设置屏幕代码

    import MenuButton from './MenuButton'

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