How to save a web page from a webview, so that later it can be parsed?

Question

Android

It is necessary that after loading a web page in a webview, save its contents of the html code to a temporary file for transfer to Jsoup for parsing. I tried the methods described on the Internet, but they do not work, most likely due to outdated code, since google no longer uses some methods. I hope with your help to breathe new life into this old question.