搭建react-native开发环境（iOS）

注：以下步骤在终端中完成

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1.安装home-brew

/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

2.安装node

brew install node 

有可能会出现以下错误：

Error: The following directories are not writable by your user:

/usr/local/etc/bash_completion.d

/usr/local/lib/pkgconfig

/usr/local/share/info

/usr/local/share/locale

/usr/local/share/man/man3

/usr/local/share/man/man8

针对以上错误：

• 改变文件拥有者：sudo chown -R $(whoami) /usr/local
• 继续安装：brew install node

3.设置npm镜像

npm config set registry https://registry.npm.taobao.org --global

npm config set disturl https://npm.taobao.org/dist --global

4.安装yarn, react-native-cli

npm install -g yarn react-native-cli 

5.设置yarn镜像源 

yarn config set registry https://registry.npm.taobao.org --global

yarn config set disturl https://npm.taobao.org/dist --global

6.安装Xcode：（App Store里直接安装）

记得要在xcode->preferences->locations里把command line tools选上

7.安装Xcode命令行工具：

xcode-select —install

出现提示直接安装即可

8.安装watchman

brew install watchman

9.初始化一个项目： 

react-native init AwesomeProject

10.运行

react-native run-ios 

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注：安装的node版本过高，可安装node指定版本

• 安装n模块：sudo npm i -g n --force
• 安装指定版本或稳定版本：n 10.0.0/stable