is `onPageFinished` is called after `onReceivedError` in anyway?

Issue

I have this code:

private final class MyWebClient extends WebViewClient {

    @Override
    public void onPageStarted(WebView view, String url, Bitmap  favicon) {
        url = "localhost:999";
        mIsLoaded = false;
        super.onPageStarted(view, url, favicon);
    }

    @Override
    public void onPageFinished(WebView view, String url) {
        mIsLoaded = true;
        super.onPageFinished(view, url);
    }

    @Override
    public void onReceivedError(WebView view, int errorCode,
                                String description, String failingUrl) {
        mIsLoaded = false;
        super.onReceivedError(view, errorCode, description, failingUrl);
    }

}

What is the relation and order of the overridden events

in case of success?

in case of failure?

MyWebClient should set a dialog content

but i want it to hide the dialog if my error code is not 0.

Should I do a "return" in onReceivedError only or onPageFinished is called anyway?

Solution

onPageFinished tells you that the WebView has stopped loading. onReceivedError tells you there was an error. They're not "success" and "failure" callbacks which is why you'll get both in case of an error.

Also, the callback implementations in WebViewClient usually don't do anything useful, so it makes no difference wither you're calling super.onReceivedError or not. There is no way to "do a return" in onReceivedError. If you want to display something else in case of an error then call view.loadUrl(...) from onReceivedError.

Answered By - marcin.kosiba