@Override
  public void onClick(View v) {
    super.onClick(v);

    switch (v.getId()) {
      case R.id.button_order_done:
        startActivity(new Intent(context, OrderDoneActivity.class));
        break;

      default:
        break;
    }
  }
 @Override
 protected void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
   context = this;
   initUI();
 }