Use asynctask with exception networkOnMainThreadException

Question

I have implement some operations with twitter in an application on the emulator works perfectly, but on the actual device, I have an exception:

android.os.NetworkOnMainThreadException

I have read about that error, and it is because I need to do a thread out of the main action, but not understand how to make the call to the function asyncsTask, since I need send Shared Preferences as a parameter. --------------------- I need put the function isAuthenticated or a part of his code in AsyncTask but need send prefs as parameter and I do not is how to do it

I put a part of the code.

HERE CALL

if (TwitterUtils.isAuthenticated(prefs)) {   
......
.....
....
}

IN CLASS TwitterUtils.java

public static boolean isAuthenticated(SharedPreferences prefs) {

String token = prefs.getString(OAuth.OAUTH_TOKEN, "");
String secret = prefs.getString(OAuth.OAUTH_TOKEN_SECRET, "");

AccessToken a = new AccessToken(token,secret);
Twitter twitter = new TwitterFactory().getInstance();
twitter.setOAuthConsumer(Constants.CONSUMER_KEY, Constants.CONSUMER_SECRET);
twitter.setOAuthAccessToken(a);


try {         
    twitter.getAccountSettings(); **LINE ERROR**
    return true;
} catch (TwitterException e) {
    e.printStackTrace();
    return false;
}

Any solution?

Thanks

i am getting the same error. will you please post the fullcode where you added Async task. I'll be very grateful to you for that. — Rohit, Jan 14 '13 at 09:44
hi, you can put a question and i will respond you with a more complete answer — jlopez, Jan 14 '13 at 10:37
thanks for your response. but i have posted my question. You can check it here: http://stackoverflow.com/questions/14316941/getting-networkonmainthreadexception-while-integrating-twitter-api-in-android — Rohit, Jan 14 '13 at 10:45

score 3 · Accepted Answer · answered Aug 21 '12 at 10:35

Replace your code:

if (TwitterUtils.isAuthenticated(prefs)) {   
......
.....
....
}

With the following:

    new AsyncTask<SharedPreferences,Object, Boolean>() {

        @Override
        protected Boolean doInBackground(SharedPreferences... params) {
            return TwitterUtils.isAuthenticated(params[0]);
        }

        @Override
        protected void onPostExecute(Boolean isAuthenticated) {
            if (isAuthenticated) {
                // Do processing after successful authentication
            }
            else {
                // Do processing after authentication failure
            }
        }
    }.execute(prefs);

score 0 · Answer 2 · answered Aug 21 '12 at 10:29

When you call twitter.getAccountSettings(), this method make a network request and like all requests, it must be done on a Thread. The fact that you need to pass a sharedpreferences change nothing.

To pass some parameters to an AsyncTask, it must be done throw the method execute() like this : new DownloadFilesTask().execute(url1, url2, url3);

More information here : http://developer.android.com/reference/android/os/AsyncTask.html

score 0 · Answer 3 · edited May 23 '17 at 12:27

0

Try using Asynac tasks to avoid this. check this out.it will answer your question.

edited May 23 '17 at 12:27

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answered Aug 21 '12 at 10:32

Dinesh Anuruddha

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Use asynctask with exception networkOnMainThreadException

3 Answers3