Electron写桌面运用入门

2024年1月4日 144次阅读 来源: 王子林

本节目的：你能够在10分钟内最先运转一个最简朴electron app。不要斟酌太多的观点，直接复制粘贴最先吧。

Electron是一个能帮你用JS来写桌面顺序的node项目。原先是为Atom打造的，厥后直接演化成兄弟项目。如今已经有许多大厂也最先运用Electron来写桌面app了。比方独角兽slack、微软的VS code、avocode、weFlow等等等等。

ok，接下来就让我们来最先着手吧。以下内容撤除下载文件的时候，三分钟就能够完成。

1.装置Electron。

// 全局装置electron，由于我们要用到它的敕令行。
$ npm install electron -g

// 然则npm装置electron要从外洋下载一个45MB摆布的zip包，迥殊的慢（8KB...），所以我们能够采纳下面的这条装置敕令。
// 这条装置敕令会从淘宝的镜像站下载这个zip包，速率很快，到达你的带宽顶峰。
$ npm install electron -g --registry=http://registry.npm.taobao.org

// 固然你也能够运用cnpm来全局装置electron
$ npm install cnpm -g --registry=http://registry.npm.taobao.org
$ cnpm install electron -g

2.预备三个小文件(以下内容直接粘贴复制)
本部分来自于官网quick start。

新建一个项目目次文件夹，名字就叫desktopApp好了。
新建三个文件

desktopApp/
├── package.json
├── main.js
└── index.html

三个文件填入以下内容：

在package.json中：

{
  "name"    : "your-app",
  "version" : "0.1.0",
  "main"    : "main.js"
}

在main.js中

const {app, BrowserWindow} = require('electron')
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 win

function createWindow () {
  // Create the browser window.
  win = new BrowserWindow({width: 800, height: 600})

  // and load the index.html of the app.
  win.loadURL(url.format({
    pathname: path.join(__dirname, 'index.html'),
    protocol: 'file:',
    slashes: true
  }))

  // Open the DevTools.
  win.webContents.openDevTools()

  // Emitted when the window is closed.
  win.on('closed', () => {
    // 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.
    win = 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', () => {
  // 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', () => {
  // 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 (win === 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.

在index.html中

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <title>Hello World!</title>
  </head>
  <body>
    <h1>Hello World!</h1>
    We are using node <script>document.write(process.versions.node)</script>,
    Chrome <script>document.write(process.versions.chrome)</script>,
    and Electron <script>document.write(process.versions.electron)</script>.
  </body>
</html>

3.运转
在这个项目目次下面运转一条敕令就能够启动我们的app了。

$ electron .

Done!圆满！天赋第一步，杀青！

    原文作者：王子林
    原文地址: https://segmentfault.com/a/1190000007903823
    本文转自网络文章，转载此文章仅为分享知识，如有侵权，请联系博主进行删除。
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