How can I download every html webpage that I view within the WebView app? Offline view of previously loaded webpages?

[koopdayetat]

I would like a feature where every webpage(not the whole entire website) that is visited automatically downloads the html of the single page that is loaded, so that it can be loaded offline. (Even webpages that are shown in Iframes)(Just text is fine)

And if possible, then you get to choose the amount of time it stays on the device before being deleted.

Can you create this or tell me what kind of code I would have to add?

[koopdayetat]

Would adding something like this help?

webview.loadUrl("javascript:HTMLOUT.processHTML(document.documentElement.outerHTML);");