Question

i bascially have an activity

that calls an async task to set up the twitter classes, provided via twitter4j.

But i recieve an error regarding “cant create handler inside thread that has not called looper.prepare ”
which is orginating from the TwitterApp class where there is a handler…

how can i get around this? successfully setting up the class no on the main UI thread as i used to have before (which worked perfectly but slowed down the app);

im basically doing:

new SetUpAsyncTaskt().execute();

within the asynctask all im doing is:

TwitterApp mTwitter;
postToTwitter = true;
String twitter_consumer_key="bllaalaa";
String twitter_secret_key="blaa"



private class SetUpAsyncTask extends AsyncTask<Void, Void, Void> {


    @Override
    protected Void doInBackground(Void... params) {



        mTwitter = new TwitterApp(context, twitter_consumer_key,twitter_secret_key);

        mTwitter.setListener(mTwLoginDialogListener);

        return null;
    }

    @Override
    protected void onPostExecute(Void result) {



        if(!mTwitter.hasAccessToken()){
            postToTwitter=false;
        }
    }
}

Thanks for any help!

UPDATE: After doing more testing, it seems the problem is due to the context, as if i remove all context based data within the class it works, but what i dont get is if i pass in the context from the UI thread, it still occurs ?? :S

UPDATE2: Found another way around it, thanks to all who replied.

Answer 1

You can use runOnUiThread() to make the non-UI task run on the UI,

Try this,

@Override
    protected Void doInBackground(Void... params) {

mTwitter = new TwitterApp(context, twitter_consumer_key,twitter_secret_key);
Activity_name.this.runOnUiThread(new Runnable() {

          @Override
          public void run() {
        mTwitter.setListener(mTwLoginDialogListener);
          }
       });
        return null;
    }