使用 Electron5.0 构建你的 React 项目
2019/7月/13 13:51:17
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最近要使用 Electron 来构建 React 项目,突然发现之前的 Demo 已经不能正常运行了,有些感概技术发展的迅猛。
如果你还不了解 Electron
,可以看我之前的文章:初探 Electron - 理论篇,理论知识没有变。如果你想了解 Electron5.0
版本如何构建 React
项目,不妨继续看本文。
需要注意:网上流传的 1.0 版本的项目应该已经启动不了了。
一、为什么要写此文
之前研究的时候,Electron
还是 1.0
版本,因此写了一系列的文章。
经过本次尝试,发现 5.0
版本有了更多的变化,所以不想误人子弟,索性更新此系列文章。
二、创建 React 项目
1.首先,全局安装 cli
:
1
| npm install --global create-react-app
|
2.创建项目
1
| create-react-app electron5-react-demo
|
1
| cd electron5-react-demo && yarn start
|
4.访问 http://localhost:3000/
如果看到如下页面,说明你的 React
项目已经成功启动了。
三、集成 Electron 环境
1.首先需要安装 Electron
和 Electron-builder
1
| yarn add electron electron-builder --dev
|
2.增加相应开发工具
yarn add wait-on concurrently --dev yarn add cross-env electron-is-dev
|
3.项目根目录下新建文件:electron.js
1
| touch public/electron.js
|
此时项目目录如下:
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| . ├── README.md ├── main.js ├── node_modules ├── public │ ├── electron.js │ ├── favicon.ico │ ├── index.html │ └── manifest.json ├── src │ ├── App.css │ ├── App.js │ ├── App.test.js │ ├── index.css │ ├── index.js │ ├── logo.svg │ └── serviceWorker.js └── yarn.lock
|
4.修改代码,可以去官网上拷贝一份内容,写入 electron.js
,具体如下:
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| // Modules to control application life and create native browser window const {app, BrowserWindow} = require('electron') const path = require('path') + const isDev = require('electron-is-dev');
// 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
function createWindow () { // Create the browser window. mainWindow = new BrowserWindow({ width: 800, height: 600, webPreferences: { preload: path.join(__dirname, 'preload.js') } })
+ mainWindow.loadURL( + isDev + ? 'http://localhost:3000' + : `file://${path.join(__dirname, "../build/index.html")}` + );
// Open the DevTools. // mainWindow.webContents.openDevTools()
// Emitted when the window is closed. mainWindow.on('closed', function () { // Dereference the window object, usually you would store windows // in an array if your app supports multi windows, this is the time // when you should delete the corresponding element. mainWindow = null }) }
// This method will be called when Electron has finished // initialization and is ready to create browser windows. // Some APIs can only be used after this event occurs. app.on('ready', createWindow)
// Quit when all windows are closed. app.on('window-all-closed', function () { // On macOS it is common for applications and their menu bar // to stay active until the user quits explicitly with Cmd + Q if (process.platform !== 'darwin') app.quit() })
app.on('activate', function () { // On macOS it's common to re-create a window in the app when the // dock icon is clicked and there are no other windows open. if (mainWindow === null) createWindow() })
// In this file you can include the rest of your app's specific main process // code. You can also put them in separate files and require them here.
|
注意我们做了两处修改(加号位置):
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| // 引入环境变量: const isDev = require('electron-is-dev'); ...
// 设置启动文件 mainWindow.loadURL( isDev ? 'http://localhost:3000' : `file://${path.join(__dirname, "../build/index.html")}` );
|
5.修改 package.json
文件,总共两处:
其一:
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| { "name": "electron5-react-demo", "version": "0.1.0", "private": true, + "main": "public/electron.js", + "homepage": "./", }
|
其二,修改启动项:
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| "react-start": "react-scripts start", "react-build": "react-scripts build", "electron-start": "electron .", "electron-build": "electron-builder", "release": "yarn react-build && electron-builder --publish=always", "build": "yarn react-build && yarn electron-build", "start": "concurrently \"cross-env BROWSER=none yarn react-start\" \"wait-on http://localhost:3000 && electron .\"" "test": "react-scripts test", "eject": "react-scripts eject",
|
看到如下界面,恭喜你,已经成功启动了:
如果你想构建,可以使用
需要注意:构建会同时构建 React 和 Electron 两个项目。
构建完成后,项目目录中会出现一个 dist
目录:
. ├── builder-effective-config.yaml ├── electron5-react-demo-0.1.0-mac.zip ├── electron5-react-demo-0.1.0.dmg ├── electron5-react-demo-0.1.0.dmg.blockmap ├── latest-mac.yml └── mac └── electron5-react-demo.app
|
目录中的 dmg
就是 Mac
上面的安装程序,双击安装:
安装之后去运行吧,到这里,我们已经完成了整个项目。
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