只需将自定义解析器添加到您的城域网配置

// metro.config.js
module.exports = {
  resolver: {
    extraNodeModules: {
      crypto: require('react-native-cyrpto'),
    },
  },
};

不幸的是，crypto依赖于其他nodejs软件包，如：net、tls、fs等。建议使用https://github.com/parshap/node-libs-react-native，它在react-native中对节点包进行多边填充
Docs
三硝基甲苯;

nom install node-libs-react-native

// metro.config.js
module.exports = {
  resolver: {
    extraNodeModules: require('node-libs-react-native'),
  },
};

我设法解决这个问题，感谢这篇文章（https://github.com/parshap/node-libs-react-native/issues/23）

yarn add react-native-get-random-values

const nodelibs = require("node-libs-react-native");

nodelibs.crypto = `${__dirname}/src/crypto.js`;

module.exports = {
  resolver: {
    extraNodeModules: nodelibs,
  },
};

然后创建了我自己的crypto.js文件

// src/crypto.js
'use strict'
import { Buffer } from 'buffer';
const { NativeModules } = require('react-native');

const randomBytes = (size) => {
  if (NativeModules.RNGetRandomValues) {
    return Buffer(NativeModules.RNGetRandomValues.getRandomBase64(size));
  } else {
    throw new Error('Native module not found')
  }
};

exports.randomBytes = exports.rng = exports.pseudoRandomBytes = exports.prng = randomBytes;