React Native (簡稱RN)是Facebook開源的跨平臺移動應(yīng)用開發(fā)框架,使用Javascript語言,著力于提高多平臺開發(fā)的開發(fā)效率 —— 僅需學(xué)習(xí)一次,編寫任何平臺。(Learn once, write anywhere)
Node.js是一個Javascript運(yùn)行環(huán)境(runtime)。實際上它是對Google V8引擎進(jìn)行了封裝。是一個基于Chrome JavaScript運(yùn)行時建立的平臺, 用于方便地搭建響應(yīng)速度快、易于擴(kuò)展的網(wǎng)絡(luò)應(yīng)用。
一、React-native
React-native本就是為了跨平臺而生,自然可以完美打造出一套移動端開發(fā)流程,兼容android、ios。語法簡單,用起來不難。這里推薦一下中文版官網(wǎng),有能力的童鞋可以看英文版的官網(wǎng),更新會更快一些。
二、Nodejs
開發(fā)服務(wù)端是不是大家秒想到的是不是Javaweb?PHP?這里給大家推薦一種相當(dāng)便捷的開發(fā)模式:Nodejs
var fs = require('fs');
var express = require('express');
var app = express();
app.get('/a', function (req, res) {
res.send('success');
});
app.listen(8880);
使用了最簡便的express框架,通過以上Demo便可以使用http://localhost:8880/a 訪問到該請求了,當(dāng)然,不要忘記加上自定義的命名空間。返回值即success。
三、React-Web + Nodejs
參看了下淘寶團(tuán)隊打造出的React-Web,即可將移動端平移至Web端,除一些特殊復(fù)雜的業(yè)務(wù),兼容性可觀。
var fs = require('fs');
var express = require('express');
var app = express();
// app.use(express.static(__dirname));
app.get('/a', function (req, res) {
res.sendFile('/Users/dawn/react-native-web-
example/web/output/index.html');
});
app.listen(8800);
自己學(xué)習(xí)使用了React-Web,也寫過一個Demo放到Github上:React-Web,主要的步驟大致是:
- npm install
- npm start
- react-web start
- react-web bundle(optional)
效果如下:(熟悉React-native的童鞋應(yīng)該都看出來了,幾本上完美兼容~)

四、React-Web + Electron
既然強(qiáng)大的React-native + Nodejs可以打通前后端流程,那么開發(fā)PC端也不在話下~這里介紹Electron框架的實現(xiàn)方式。核心代碼main.js如下:
'use strict'
const electron = require('electron')
// Module to control application life.
const app = require('app')
// Module to create native browser window.
const BrowserWindow = require('browser-window');
const path = require('path')
const url = require('url')
// Keep a global reference of the window object, if you don't, the window will
// be closed automatically when the JavaScript object is garbage collected.
let mainWindow = null
function createWindow () {
// Create the browser window.
mainWindow = new BrowserWindow({width: 702, height: 600})
// and load the index.html of the app.
mainWindow.loadUrl(url.format({
pathname: path.join(__dirname, 'index.html'),
protocol: 'file:',
slashes: true
}))
// Open the DevTools.
// mainWindow.webContents.openDevTools()
// Emitted when the window is closed.
mainWindow.on('closed', function () {
// Dereference the window object, usually you would store windows
// in an array if your app supports multi windows, this is the time
// when you should delete the corresponding element.
mainWindow = null
})
}
// This method will be called when Electron has finished
// initialization and is ready to create browser windows.
// Some APIs can only be used after this event occurs.
app.on('ready', createWindow)
// Quit when all windows are closed.
app.on('window-all-closed', function () {
// On OS X it is common for applications and their menu bar
// to stay active until the user quits explicitly with Cmd + Q
if (process.platform !== 'darwin') {
app.quit()
}
})
app.on('activate', function () {
// On OS X it's common to re-create a window in the app when the
// dock icon is clicked and there are no other windows open.
if (mainWindow === null) {
createWindow()
}
})
// In this file you can include the rest of your app's specific main process
// code. You can also put them in separate files and require them here.
需要注意的是,配置文件需要自定義一下,這樣便可使用簡單的npm run-script package命令一鍵打包,親測可用。
"scripts": {
"start": "electron .",
"package": "electron-packager /Users/dawn/electron-quick-start Ivor --platform=darwin --electronVersion=0.30.2 --out=output --overwrite --icon=/Users/dawn/electron-quick-start/app-icon.icns"
}
由于這部分是使用了國外網(wǎng)址,npm install timeout的童鞋可以把根目錄的.npmrc文件添加上如下內(nèi)容(使用淘寶鏡像源):
registry=https://registry.npm.taobao.org
sass_binary_site=https://npm.taobao.org/mirrors/node-sass/
phantomjs_cdnurl=http://npm.taobao.org/mirrors/phantomjs
ELECTRON_MIRROR=http://npm.taobao.org/mirrors/electron/
然后剛開始使用的時候,直接引用官方提供的Demo,會遇到各種坑,主要體現(xiàn)在package.json的版本與自定義操作方面,于是自己也努力打通了完整流程,可以參看一下我的Electron_Demo。
完成了上上方核心代碼main.js的功能后,對應(yīng)app( )的的各個方法,包含了對Window的操作,一個完整的桌面端應(yīng)用就出來啦,撒花~

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