IPC通信在电子与窗口之间不起作用

问题描述：

我正在尝试编写基于Electron Boilerplate的第一个Electron应用程序。我正在尝试将一个简单的消息从Electron主进程发送到我的窗口中，但是似乎该消息没有发送出去。

I am trying to write my first Electron app based on Electron Boilerplate. I am trying to send a simple message from the main Electron process into my window but it seems that the message is not getting send.

我介绍的主要代码如下

background.js（主要Electron流程

// Window setup
app.on("ready", () => {
  mainWindow = new BrowserWindow({
  width: 1000,
  height: 300,
  frame: false,
  resizable: false,
  transparent: true,    
  });  
  mainWindow.setIgnoreMouseEvents(true);
  mainWindow.hide();

  mainWindow.loadURL(
    url.format({
      pathname: path.join(__dirname, "app.html"),
      protocol: "file:",
      slashes: true
    })
  );

  const ret = globalShortcut.register(getKeyboardShortCut(), () => {
    mainWindow.isVisible ? mainWindow.hide() :  mainWindow.show();
  })

  if(isDev()){
    mainWindow.openDevTools();
    mainWindow.setIgnoreMouseEvents(false);
    console.log("======== DEV ==========");
    mainWindow.show();
    mainWindow.webContents.send('test','This is a test');
  }
});

app.js（映射到mainWindow的窗口）

import { ipcRenderer } from "electron";

ipcRenderer.on('test', (event, text) => { console.log("Received test 
message:", text)});
console.log(ipcRenderer);

任何不知道为何未收到活动的想法吗？我在控制台日志中看到DEV代码正在运行，但在应用程序窗口侧却没有任何内容（在开发人员控制台日志中）完整代码可在 Git Repo

Any idea why the event is not getting received ? I see the console log that the DEV code is running but nothing on the app window side ( In the Developer console log ) The full code can be found at Git Repo

任何帮助将不胜感激。

感谢
Oliver

Thanks Oliver

答

如文档所示（ https://github.com/electron/electron/blob/master /docs/api/web-contents.md#contentssendchannel-arg1-arg2- ），在渲染器准备好监听之后发送消息很重要。

As document indicates (https://github.com/electron/electron/blob/master/docs/api/web-contents.md#contentssendchannel-arg1-arg2-), It is important to send message once renderer is ready to listen.

if(isDev()){
    mainWindow.openDevTools();
    mainWindow.setIgnoreMouseEvents(false);
    console.log("======== DEV ==========");
    mainWindow.show();
    // send after did-finish-load
    mainWindow.webContents.on('did-finish-load', () => {
      mainWindow.webContents.send('test','This is a test');
    })
  }

IPC通信在电子与窗口之间不起作用

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