MediaStream: addtrack event

在此页

addtrack event is fired when a new MediaStreamTrack object has been added to a MediaStream .

使用 addEventListener() :

let stream = new MediaStream();
stream.addEventListener('addtrack', (event) => {
  console.log(`New ${event.track.kind} track added`);
});

使用 onaddtrack 事件处理程序特性：

let stream = new MediaStream();
stream.onaddtrack = (event) => {
  console.log(`New ${event.track.kind} track added`);
};

规范	状态
媒体捕获和流 The definition of 'addtrack' in that specification.	候选推荐

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`addtrack` event	Chrome Yes	Edge 12	Firefox 50	IE No	Opera No	Safari Yes	WebView Android Yes	Chrome Android Yes	Firefox Android 50	Opera Android No	Safari iOS Yes	Samsung Internet Android Yes