是的，看看cordova-plugin-iosrtc和cordova-plugin-wkwebview- engine。插件背后的想法如下：
创建一个定义各种WebRTC类和函数的JavaScript文件（WebRTC.js），并将调用传递给WKWebView，例如：
(function() {
if (!window.navigator) window.navigator = {};
window.navigator.getUserMedia = function() {
webkit.messageHandlers.callbackHandler.postMessage(arguments);
}
})();
在WKWebView中，在文档开始处插入脚本：
let contentController = WKUserContentController();
contentController.add(self, name: "callbackHandler")
let script = try! String(contentsOf: Bundle.main.url(forResource: "WebRTC", withExtension: "js")!, encoding: String.Encoding.utf8)
contentController.addUserScript(WKUserScript(source: script, injectionTime: WKUserScriptInjectionTime.atDocumentStart, forMainFrameOnly: true))
let config = WKWebViewConfiguration()
config.userContentController = contentController
webView = WKWebView(frame: CGRect.zero, configuration: config)
收听从JavaScript发送的消息：
class ViewController: UIViewController, WKUIDelegate, WKNavigationDelegate, WKScriptMessageHandler {
var webView: WKWebView!
func userContentController(_ userContentController: WKUserContentController, didReceive message: WKScriptMessage) {
if message.name == "callbackHandler" {
print(message.body)
// make native calls to the WebRTC framework here
}
}
}
如果需要在JavaScript领域中执行成功或失败回调，请直接在WKWebView中评估函数调用：
webView.evaluateJavaScript("callback({id: \(id), status: 'success', args: ...})", completionHandler: nil)
这些回调需要 在 调用 之前 存储在JavaScript中的哈希中postMessage，然后必须将哈希键发送到WKWebView。这是commandId插件中的。
int exec_id = 0;
function exec(success, failure, ...) {
// store the callbacks for later
if (typeof success == 'function' || typeof failure == 'function') {
exec_id++;
exec_callbacks[exec_id] = { success: success, failure: failure };
var commandId = exec_id;
}
webkit.messageHandlers.callbackHandler.postMessage({id: commandId, args: ...})
}
// the native code calls this directly with the same commandId, so the callbacks can be performed and released
function callback(opts) {
if (opts.status == "success") {
if (typeof exec_callbacks[opts.id].success == 'function') exec_callbacks[opts.id].success(opts.args);
} else {
if (typeof exec_callbacks[opts.id].failure == 'function') exec_callbacks[opts.id].failure(opts.args);
}
// some WebRTC functions invoke the callbacks multiple times
// the native Cordova plugin uses setKeepCallbackAs(true)
if (!opts.keepalive) delete exec_callbacks[opts.id];
}
当然，为您的项目添加NSCameraUsageDescription和NSMicrophoneUsageDescription权限Info.plist。
Keep in mind this is a non-trivial task, but that’s the general idea behind bridging JavaScript, WKWebView, and native framework code with asynchronous callbacks.
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