Android WebView HTML extraction

Question

Basically, I am developing an Android application where a user can access the contents of an HTML page and choose what to do with it, whether it is writing to a file system, downloading via FTP, etc. the user cannot see the HTML, but he saves it for viewing later.

I tried to add a JavaScript interface and then add it to the onPageFinished event, it just doesn’t want to pass HTML, here is what I did:

so for my onPageFinished event:

Webview wv = (WebView) findViewById(R.id.webbrowser);
wv.addJavascriptInterface(new JSEngine() , "JSEngine");
  public void onPageFinished(WebView wv , String html){
   //code to execute
   wv.loadUrl("javascript: window.JSEngine.processHTML(document.body.innerHTML)");
  }

the code to execute inside processHTML cannot be split for certain reasons, but I can tell you that the html variable is empty.

then my javascript interface:

Class JSEngine{
  @JavascriptInterface
  public void processHTML(String html){
    //code to execute
    //html variable is null
  }
}

-, ? , , -, html.

Answer 1

HTML, WebView, HTTP-, HTML .

, -, HTML, WebView loadDataWithBaseURL().

WebViewClient.onLoadResource() HTTP- URL-. , WebView , , WebView HTTP-, .