AsyncTask example

AsyncTask.java

/* wrapper of Java thread */
public void onButtonClicked()  {
    new RxBytesCheck().execute();
}

private class RxBytesCheck extends AsyncTask<Void, Void, Long> {
    @Override
    protected Long doInBackground(Void... params)
    {
        return TrafficStats.getTotalRxBytes();
    }
    @Override
    protected void onPostExecute(Long result)
    {
        TextView mainTextView = (TextView) findViewById(R.id.main_text_view);
        mainTextView.setText(result.toString());
    }
}