@Override
  public void onItemSelected(AdapterView<?> arg0, final View arg1, int arg2, long arg3) {
    // TODO Auto-generated method stub
    if (sconsumoantib.getSelectedItemPosition() == 1) {
      ants.setEnabled(true);

    } else {
      ants.setEnabled(false);
      ants.setText("");
    }

    arg0.post(
        new Runnable() {
          @Override
          public void run() {
            arg1.setFocusableInTouchMode(true);
            arg1.requestFocusFromTouch();
            arg1.requestFocus();
          }
        });
  }