I have an application that includes webspeech api and webrtc, which is not functional within webview.

As per some other posts such as this one,

WebRTC error inside Chromium WebView: "CheckMediaAccessPermission: Not supported"

Android, WebView and SpeechRecognition-API

it should work will all relevant permissions, along with setting up permissions request within webchromeclient. I do have all necessary code implemented within main activity, and have given all necessary permissions in the manifest file, however neither one is working.

Would this solution be still relevant for newer android versions?

Any suggestions in this regard would be appreciated.