How can I check from Android WebView if a page is a "404 page not found"?

Question

I want to check a "404 page not found" from a WebView and if it's a 404 then I revert to the previous page. Ty for your help

EDIT also the webpages I want to see are pure .jpg 1.jpg 2.jpg 3.jpg but I have no info of how many images exist. So if anyone can propose another method, he is welcome to do so.

Answer 1

Starting SDK 23 (Android M) you can use onReceivedHttpError method to catch 404 and other HTTP errors. Just override inside your WebViewClient

@Override public void onReceivedHttpError (WebView view, WebResourceRequest request, WebResourceResponse errorResponse) {     Toast.makeText(view.getContext(), "HTTP error "+errorResponse.getStatusCode(), Toast.LENGTH_LONG).show(); }