RTCSessionDescriptionCallback

弃用
This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

RTCSessionDescriptionCallback type is used to represent the callback function passed into the deprecated callback-based version of createOffer() or createAnswer() when using them to create offers or answers.

Because this function type is part of the legacy WebRTC API, you should avoid using it (and the callback-based forms of createOffer() and createAnswer() that make use of it).

句法

RTCSessionDescriptionCallback(description);
					

参数

description
An RTCSessionDescriptionInit (or RTCSessionDescription ) object describing the session being offered or being accepted. This object contains the type and sdp properties which are part of RTCSessionDescription .

返回值

The callback doesn't need to return anything, so the return value is undefined .

范例

var pc = new RTCPeerConnection();
var descriptionCallback = function(offer) {
  pc.setLocalDescription(offer);
}
pc.createOffer(descriptionCallback);
					

规范

规范 状态 Comment
WebRTC 1.0: Real-time Communication Between Browsers
The definition of 'RTCSessionDescriptionCallback' in that specification.
候选推荐 初始定义。

浏览器兼容性

更新 GitHub 上的兼容性数据
Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet
RTCSessionDescriptionCallback
弃用
Chrome Yes Edge ≤18 Firefox 22 IE 不支持 No Opera ? Safari ? WebView Android Yes Chrome Android Yes Firefox Android 24 Opera Android ? Safari iOS ? Samsung Internet Android Yes

图例

完整支持
完整支持
不支持
不支持
兼容性未知
兼容性未知
弃用。不要用于新网站。
弃用。不要用于新网站。

另请参阅