ReactNative 环境配置

一直是从事iOS的开发，现在研究下mac环境下reatNative的环境配置：

1. 安装HomeBlew（OS系统上的一个安装包管理器，安装后可以方便后续安装包的安装。）

终端命令：

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

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2. 安装Node.js （服务端的JavaScript运行环境）

下载地址：https://nodejs.org/download/

成功安装后，终端会有如下提示信息：

Node.js was installed at: /usr/local/bin/node

npm was installed at: /usr/local/bin/npm

Make sure that /usr/local/bin is in your $PATH.

3. 建议安装WatchMan（React修改source文件的一个工具）

终端命令：

brew install watchman

4. 安装Flow: 一个JavaScript 的静态类型检查器。

终端命令：

brew install flow

5. 安装React Native CLI: 用来开发React Native的命令行工具

终端命令：

npm install -g react-native

创建项目1. 新建一个项目

　　新建一个“HelloWorld”的项目，每个语言的开始教程都是这个，我们也不例外。

操作超级简单，只需终端输入命令行：

react-native init HelloWorld

这样就新建了一个工程，前往文件夹：/用户/xxx/HelloWorld (xxx为电脑用户名)，打开iOS文件下的工程：

注意：打开后会报以下错误

❌ error: Build input file cannot be found:'/Users/rod/dev/react/testing/awesome/node_modules/react-native/third-party/double-conversion-1.1.6/src/strtod.cc'▸ Compiling fast-dtoa.cc

❌ error: Build input file cannot be found:'/Users/rod/dev/react/testing/awesome/node_modules/react-native/third-party/double-conversion-1.1.6/src/fast-dtoa.cc'▸ Compiling fixed-dtoa.cc

❌ error: Build input file cannot be found:'/Users/rod/dev/react/testing/awesome/node_modules/react-native/third-party/double-conversion-1.1.6/src/fixed-dtoa.cc'▸ Compilingdouble-conversion.cc

❌ error: Build input file cannot be found:'/Users/rod/dev/react/testing/awesome/node_modules/react-native/third-party/double-conversion-1.1.6/src/double-conversion.cc'▸ Compiling diy-fp.cc

❌ error: Build input file cannot be found:'/Users/rod/dev/react/testing/awesome/node_modules/react-native/third-party/double-conversion-1.1.6/src/diy-fp.cc'▸ Compiling cached-powers.cc

❌ error: Build input file cannot be found:'/Users/rod/dev/react/testing/awesome/node_modules/react-native/third-party/double-conversion-1.1.6/src/cached-powers.cc'▸ Compiling bignum.cc

❌ error: Build input file cannot be found:'/Users/rod/dev/react/testing/awesome/node_modules/react-native/third-party/double-conversion-1.1.6/src/bignum.cc'

解决方案

cd node_modules/react-native/scripts && ./ios-install-third-party.sh &&cd../../../

cd node_modules/react-native/third-party/glog-0.3.5/ && ../../scripts/ios-configure-glog.sh