Angular 4 Electron – 如何运行应用程序并监视更改(实时重新加载)

我正在使用Angular 4创建一个Electron应用程序.我如何设置它以便它监视任何更改并实时重新加载它.

的package.json

{
  "name": "angular-electron","version": "0.0.0","license": "MIT","main": "main.js","scripts": {
    "ng": "ng","start": "ng serve","build": "ng build","test": "ng test","lint": "ng lint","e2e": "ng e2e","electron": "electron .","electron-build": "ng build --prod && electron ."
  },"private": true,"dependencies": {
    "@angular/animations": "^4.2.4","@angular/common": "^4.2.4","@angular/compiler": "^4.2.4","@angular/core": "^4.2.4","@angular/forms": "^4.2.4","@angular/http": "^4.2.4","@angular/platform-browser": "^4.2.4","@angular/platform-browser-dynamic": "^4.2.4","@angular/router": "^4.2.4","angular-svg-round-progressbar": "^1.1.0","bulma": "^0.5.3","core-js": "^2.4.1","rxjs": "^5.4.2","zone.js": "^0.8.14"
  },"devDependencies": {
    "@angular/cli": "1.4.1","@angular/compiler-cli": "^4.2.4","@angular/language-service": "^4.2.4","@types/jasmine": "~2.5.53","@types/jasminewd2": "~2.0.2","@types/node": "~6.0.60","codelyzer": "~3.1.1","electron": "^1.7.6","electron-packager": "^9.1.0","jasmine-core": "~2.6.2","jasmine-spec-reporter": "~4.1.0","karma": "~1.7.0","karma-chrome-launcher": "~2.1.1","karma-cli": "~1.0.1","karma-coverage-istanbul-reporter": "^1.2.1","karma-jasmine": "~1.1.0","karma-jasmine-html-reporter": "^0.2.2","protractor": "~5.1.2","ts-node": "~3.2.0","tslint": "~5.3.2","typescript": "~2.3.3"
  }
}

电子

const { app,browserWindow } = require('electron')

let win;

function createWindow () {
  // Create the browser window.
  win = new browserWindow({
    width: 600,height: 600,backgroundColor: '#ffffff',icon: `file://${__dirname}/dist/assets/logo.png`
  })

  win.loadURL(`file://${__dirname}/dist/index.html`)

  //// uncomment below to open the DevTools.
  // win.webContents.openDevTools()

  // Event when the window is closed.
  win.on('closed',function () {
    win = null
  })
}

// Create window on electron intialization
app.on('ready',createWindow)

// Quit when all windows are closed.
app.on('window-all-closed',function () {

  // On macOS specific close process
  if (process.platform !== 'darwin') {
    app.quit()
  }
})

app.on('activate',function () {
  // macOS specific close process
  if (win === null) {
    createWindow()
  }
})

谢谢.

目前,我每次使用以下命令构建我的应用程序

ng build --prod && electron .

这很累,所以我希望能够构建一个运行命令,以便监视更改和实时重新加载.

解决方法

您可以使用 electron-reload进行热模块重新加载.它会监听文件更改并重新加载电子应用程序.

只需将其添加到package.json中的devDependencies即可.

然后,你必须将它添加到main.ts：

import { app,browserWindow,Menu } from 'electron';

let win,serve;
const args = process.argv.slice(1);
serve = args.some(val => val === '--serve');

if (serve) {
  require('electron-reload')(__dirname,{});
}

然后在包json中添加一个命令

"start": "webpack --watch","serve": "npm run build:main && electron ./dist --serve","build:main": "tsc main.ts --outDir dist && copyfiles package.json dist && cd dist && npm install --prod"

其中build：main是用于编译项目的构建脚本.这将编译所有Typescript文件并将它们放入dist文件夹中.然后,它运行npm install以从NPM下载和安装模块.

您需要使用module-bundler Webpack才能运行它.安装它

npm install --save-dev webpack

首先,在控制台中运行npm start.之后,在第二个控制台执行run run.现在,它会侦听更改并重新编译文件更改.

tsc代表TypeScript编译器.如果您使用tsc作为节点模块,请确保已安装：

npm install -g typescript

我目前将它用于具有相同设置(Angular 4,Electron)的项目,并且它完美地工作.