[An Introduction to Flutter: The Interface] Wrap example

wrap_example.dart

class WrapExample extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Wrap(
      direction: Axis.vertical,
      children: [
        Item(),
        Item(),
        Item(),
      ],
    );
  }
}

class Item extends StatelessWidget {
  Item({this.color});

  final Color color;

  @override
  Widget build(BuildContext context) {
    return Container(
      margin: EdgeInsets.all(5),
      color: Color(0xFFFF00FF),
      width: 100,
      height: 100,
    );
  }
}