如何投射带有Google Cast Chrome扩展程序的HTML页面？ [英] How can I cast an HTML page with the Google Cast Chrome extension?

问题描述

我正在构建一个简单的Web应用程序，希望能够使用Google Cast SDK，Chrome浏览器和Chromecast在电视屏幕上显示。我知道，有了适用于Chrome浏览器的Chromecast扩展程序，我可以将标签页投射到Chromecast设备上，从我的笔记本电脑上可以完美运行。但是，我想要这个完全相同的功能，但是可以从运行Chrome浏览器的iOS设备（iPad和iPhone）获得。

I'm building a simple web application that I want to be able to display on a TV screen using the Google Cast SDK, the Chrome browser and a Chromecast. I know with the Chromecast extension for Chrome Browser, I can cast a tab to a Chromecast device, which, from my laptop works perfectly. However, I want this exact same functionality, but available from iOS devices (iPads and iPhones) running the Chrome Browser.

似乎自Chrome v36以来，Cast功能已被植入iOS版本的Chrome。我已按照以下说明提取了Google Cast SDK： https://developers.google.com/cast / docs / chrome_sender 。我可以将iPad连接到Chromecast，但是当我尝试将URL传递到网页时...

It seems since Chrome v36 the Cast ability is baked into the iOS versions of Chrome. I have pulled in the Google Cast SDK per these instructions: https://developers.google.com/cast/docs/chrome_sender. I am able to get my iPad to connect to the Chromecast, but when I try to pass in a URL to a web page...

var mediaInfo = new chrome.cast.media.MediaInfo('http://google.com');
var request = new chrome.cast.media.LoadRequest(mediaInfo);
session.loadMedia(request, onMediaDiscovered.bind(this, 'loadMedia'), onMediaError);

我遇到错误...

invalid_parameter

invalid_parameter

我发现了其他一些过时的示例，说我可以构建一个自定义的Cast Receiver拥有一个iFrame并在其中呈现页面，但我不想构建自定义的Cast Receiver。

I have found other, somewhat dated examples, saying I can build a custom Cast Receiver that holds an iFrame and renders the page in there, but I do not want to build a custom Cast Receiver.

我可以仅使用Cast发件人吗？

Can I accomplish this with just a Cast Sender?

推荐答案

chromecast上始终需要一个接收器；那就是那里加载的东西。通常，您可以使用默认/样式接收器，也可以使用自定义接收器。 默认或样式接收器只能处理媒体，因此您可以选择自定义选项，然后使用iframe。

You always need a receiver on the chromecast; that is what gets loaded there. In general, you can either use a default/styled receiver or a custom one. The Default or Styled receivers can only handle media so you are left with the Custom option and having an iframe is the way to go.

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