texty-navigation-06.dart

 Column makeMenuItem(icon, title) {
    return Column(
      crossAxisAlignment: CrossAxisAlignment.stretch,
      mainAxisSize: MainAxisSize.min,
      verticalDirection: VerticalDirection.down,
      children: <Widget>[
        Center(
            child: Icon(
          icon,
          size: 80.0,
          color: Colors.white,
        )),
        SizedBox(height: 10.0),
        new Center(
          child: new Text(title,
              style: new TextStyle(
                  fontSize: 18.0,
                  color: Colors.white,
                  fontWeight: FontWeight.bold)),
        )
      ],
    );
  }