Question

We suppose that a url is already loaded (Let’s call it the original url).

webView.setWebViewClient(new WebViewClient() {
    @Override
    public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
        webView.loadUrl("file:///android_asset/missing.html");
    } 
});

I have created my own error page to prevent the “web page not available message” to appear.
The app must reload the webview every time it is resumed. So i have the following lines of code:

@Override
protected void onResume() {
    super.onResume();
    webView.reload();
}

The problem here is that when the error page is loaded (for example when the user is not connected to the internet), and then a connection is available again and the user resumes the app, the original url is not loaded (which seems logic, the current now is missing.html). But is this a nice approach? Any suggestions for the problem?

There is also a refresh button if the user wants to reload the content. Same issue here.

Answer 1

I’d examine internet connectivity in onResume() like suggested on http://developer.android.com/training/basics/network-ops/managing.html

public static boolean isOnline() {
  ConnectivityManager connMgr = (ConnectivityManager) App.instans.getSystemService(Context.CONNECTIVITY_SERVICE);
  NetworkInfo networkInfo = connMgr.getActiveNetworkInfo();
  return (networkInfo != null && networkInfo.isConnected());
}

public void onResume() {