如何与Expo一起使用绝对路径导入并进行反应天然

我正在尝试使用绝对导入路径，而不是使用Expo的相对路径和反应本机。

我查看了博览会文档，找不到答案...在React社区中搜索该主题，我找到了Babel-Plugin-Module-Resolver，但似乎Expo已经在使用它，所以我已经更改了我的.babelrc创建一些别名：

{
  "presets": ["babel-preset-expo"],
  "env": {
    "development": {
      "plugins": [
        "transform-react-jsx-source",
        ["module-resolver", {
          "root": ["./app"],
          "alias": {
            "Components": "./app/components",
          }
        }]
      ]
    }
  }
}

但是我有以下错误：

    Unable to resolve module '@expo/vector-icons/glyphmaps/Entypo.json' 
    from '/Users/eduardoleal/Code/lua/rook/node_modules/@expo/vector-icons/Entypo.js': 
    Module does not exist in the module map or in these directories:   /Users/eduardoleal/Code/lua/rook/node_modules/@expo/vector-icons/node_modules/@expo/vector-icons/glyphmaps ,   /Users/eduardoleal/Code/lua/rook/node_modules/@expo/vector-icons/glyphmaps  This might be related to https://github.com/facebook/react-native/issues/4968 To resolve try the following:   
    1. Clear watchman watches: 'watchman watch-del-all'.   
    2. Delete the 'node_modules' folder: 'rm -rf node_modules && npm install'.   
    3. Reset packager cache: 'rm -fr $TMPDIR/react-*' or 'npm start --reset-cache'.
    ABI16_0_0RCTFatal -[ABI16_0_0RCTBatchedBridge stopLoadingWithError:] __34-[ABI16_0_0RCTBatchedBridge start]_block_invoke_2 _dispatch_call_block_and_release _dispatch_client_callout _dispatch_main_queue_callback_4CF __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ __CFRunLoopRun CFRunLoopRunSpecific GSEventRunModal UIApplicationMain main start 0x0

有什么简单的方法可以导入绝对路径？

更新：Expo V32.0.0及向上

expo Init正在为您创建babel.config.js。只需将plugins键添加到babel.config.js文件中，然后添加别名即可。env密钥不再需要。

module.exports = function(api) {
  api.cache(true)
  return {
    presets: ['babel-preset-expo'],
    plugins: [
      [
        'module-resolver',
        {
          alias: {
            assets: './assets',
            components: './src/components',
            modules: './src/modules',
            lib: './src/lib',
            types: './src/types',
            constants: './src/constants',
          },
        },
      ],
    ],
  }
}

更新：Expo.io SDK V20.0.0的更改

由于SDK V20.0.0您可以使用普通的Babel Expo预设

{
  "presets": ["babel-preset-expo"],
  "env": {
    "development": {
      "plugins": ["transform-react-jsx-source"]
    }
  },
  "plugins": [
    ["module-resolver", {
      "alias": {
        "alias-name": "./app",
      }
    }]
  ]
}

expo.io sdk v19.0.0和
之前

没有root-元素，将plugins分开，将presets更改为babel-preset-react-native-stage-0/decorator-support，对我来说是一个别名。

在版本16.0.0上使用expo.io
在此处的博览会论坛中找到了这一点：https：//forums.expo.io/t/relative-paths-with-expo/654/3

您可以验证这也可以在您的情况下使用吗？

{
  "presets": ["babel-preset-react-native-stage-0/decorator-support"],
  "env": {
    "development": {
      "plugins": ["transform-react-jsx-source"]
    }
  },
  "plugins": [
    ["module-resolver", {
      "alias": {
        "alias-name": "./app",
      }
    }]
  ]
}

最新的博览会用户(SDK版本> = 32(。

只需添加插件 babel.config.js 中的属性(在项目root目录中找到此文件(。

module.exports = function (api) {
  api.cache(true);
  return {
    presets: ['babel-preset-expo'],
    plugins: [
      [
        'module-resolver',
        {
          alias: {
            'alias-name': './src/assets/bla/bla',
          },
        },
      ],
    ],
  };
};

在对Laszlo Schurg的答案中贴上，以防有人遇到与Typescript相同的问题。

如果您使用的是Typescript，则还需要在tsconfig

中添加它

"compilerOptions": {
  ...
  "baseUrl": ".",
  "paths": {
    "@src/*": ["./src/*"],
    "@assets/*": ["./assets/*"]
  }
},

这是我的babel.config

的配置

plugins: [
  ...
  [
    "module-resolver",
    {
      alias: {
        "@assets": "./assets",
        "@src": "./src",
      },
    },
  ],
],

一段时间后试图使此工作。我可以通过DE解决.babelrc：

解决问题

{
  "presets": ["babel-preset-react-native-stage-0/decorator-support"],
  "env": {
    "development": {
      "plugins": ["transform-react-jsx-source"]
    }
  },
  "plugins": [
    ["module-resolver", {
      "alias": {
        "react-native-vector-icons": "@expo/vector-icons",
        "@expo/vector-icons/lib/create-icon-set": "react-native-vector-icons/lib/create-icon-set",
        "@expo/vector-icons/lib/icon-button": "react-native-vector-icons/lib/icon-button",
        "@expo/vector-icons/lib/create-icon-set-from-fontello": "react-native-vector-icons/lib/create-icon-set-from-fontello",
        "@expo/vector-icons/lib/create-icon-set-from-icomoon": "react-native-vector-icons/lib/create-icon-set-from-icomoon",
        "@expo/vector-icons/lib/icon-button": "react-native-vector-icons/lib/icon-button",
        "@expo/vector-icons/glyphmaps": "react-native-vector-icons/glyphmaps",
        "$components": "./app/components",
        "$config": "./app/config",
        "$helpers": "./app/helpers",
        "$navigators": "./app/navigators",
        "$reducers": "./app/reducers",
        "$screens": "./app/screens",
        "$images": "./assets/images",
        "$fonts": "./assets/fonts",
        "$icons": "./assets/icons",
        "$videos": "./assets/videos",
      }
    }]
  ]
}

我将babel-preset-expo的内容复制到我的.babelrc。这不是最好的解决方案...但是它正常工作。

此处的更多详细信息

./src
 |- package.json
 |- Bar/
 |   `- index.js
 `- Foo.js

package.json

{
  "name": "~" // whatever u want
}

然后

import { Foo } from "~/Foo";
import { Bar } from "~/Bar";
// ...

i com带有此建议：

在您的tsconfig.json中：

  <pre>
     <code>
{
  "compilerOptions": {
    "baseUrl": "./app",
    "paths": {
      "Components": ["components/*"]
    }
  },
  "include": ["app"]
}
     </code>
  </pre>

和vite.config.ts解决可能看起来像这样：

 <pre>
    <code>
resolve: {
    alias: {
      "Components": "app/components",
    }
}
    </code>
 </pre>

只是简单地让您。

{
  "presets": ["babel-preset-expo"],
  "env": {
    "development": {
      "plugins": ["transform-react-jsx-source"]
    }
  }
}

和这样的导入：

import Entypo from '@expo/vector-icons/Entypo';

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