How to get back refreshed web view after onReceivedError

Question

I am developing small app where I am calling webpage.

I override WebViewClient as I wants to open webpage in same view.

My problem is if there is any problem o

Answer 1

Maybe you can give your own BroadcastReceiver class a shot.

Try it like this (totally untested):

1.) GlobalState class:

public GlobalState {

    public static boolean isOnline = true;
    public static String lastUrl = ""; 
}

2.) Save your last url and connection-state in onReceivedError:

@Override
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {

     super.onReceivedError(view, errorCode, description, failingUrl);
     GlobalState.isOnline = false;
     GlobalState.lastUrl = failingUrl;

     hideErrorPage(view);
}

3.) Implement a callback in your activity class (i do not know the name, so i called it MainActivity.java):

public class MainActivity extends Activity implements IConnectionCallback {

    private ConnectionBroadReceiver cbr = null;


    @Override
    protected void onCreate(Bundle savedInstanceState) {

        //some code...
        cbr = new ConnectionBroadReceiver (this);
        registerReceiver(cbr, new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION)); 
       //some more code...        
    }

    //this method will be triggered by ConnectionBroadCastReceiver
    @Override
    public void reload() {

        //now reload your webview:
        questionweb.loadUrl(GlobalState.lastUrl);
    }
}

4.) Define your Interface callback:

public interface IConnectionCallback {

    public void reload();
}

5.) Last but not least the ConnectionBroadReceiver class:

public class ConnectionBroadReceiver extends BroadcastReceiver {

    private IConnectionCallback callback = null;

    public ConnectionBroadReceiver (IConnectionCallback callback) {

        this.callback = callback;

    }

    @Override
    public void onReceive(Context context, Intent intent) {

        ConnectivityManager cm = (ConnectivityManager)    
        context.getSystemService(Context.CONNECTIVITY_SERVICE);

        NetworkInfo netInfo = cm.getActiveNetworkInfo();

        // lets check the connection
        if (netInfo != null && netInfo.isConnectedOrConnecting()) {

            //when last state was the offline state (GlobalState.isOnline== false), 
            //lets trigger the callback 
            if (GlobalState.isOnline == false) {

                callback.reload();
            }
            GlobalState.isOnline = true;
         } else {

            GlobalState.isOnline = false;
     }

}