drawer.dart

 Widget _createDrawerItem(
      {IconData icon, String text, GestureTapCallback onTap}) {
    return ListTile(
      title: Row(
        children: <Widget>[
          Icon(icon),
          Padding(
            padding: EdgeInsets.only(left: 8.0),
            child: Text(text),
          )
        ],
      ),
      onTap: onTap,
    );
  }