leak test

public class MyFragment extends Fragment {

    TextView textView;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        View v = inflater.inflate(R.layout.activity_main, null);
        textView = (TextView) v.findViewById(R.id.textview);
        new LeakTask().execute();
        return v;
    }

    private class LeakTask extends AsyncTask<Void, Integer, Void> {
        @Override
        protected Void doInBackground(Void... params) {
            for (int i = 0; i < 50; i++) {
                publishProgress(i);
            }
            return null;
        }

        @Override
        protected void onProgressUpdate(Integer... values) {
            super.onProgressUpdate(values);
            textView.append(String.valueOf(values[0]));
        }
    }

    @Override
    public void onDestroyView() {
        super.onDestroyView();
        textView = null; // settings this here null, might cause a nullpointer
                            // in onProgressUpdate
                            // textView.append(String.valueOf(values[0]));

    }
}