安装加密用包

yarn add react-native-crypto react-native-randombytes

安装兼容工具

yarn add --dev tradle/rn-nodeify

link

react-native link 

生成兼容js

./node_modules/.bin/rn-nodeify --hack --install

然后在 App.js 中引入

import './shim.js'
import crypto from 'crypto'

如果报错

added 120 packages from 133 contributors, removed 95 packages and updated 1064 packages in 156.737s
/Users/Easy/Playground/lm1/node_modules/rn-nodeify/cmd.js:74
      if (err) throw err
               ^

Error: ENOENT: no such file or directory, open '/Users/Easy/Playground/lm1/node_modules/rn-nodeify/shim.js'

报错以后怎么办呢？

react-native link

然后 重新装 rn-nodefiy

yarn add --dev tradle/rn-nodeify

再运行

./node_modules/.bin/rn-nodeify --hack --install