Make item content wrapped vertically inside a horizontal ListView

list_item.dart

// ListView applies a tight constraint (minHeight = maxHeight in this case) to its children. 
// So all children are forced to have the same height. To let an item to have its own size,
// first, remove constraints by using UnconstrainedBox.
// then, apply new loosen constraints with ConstrainedBox.
// Using only UnconstrainedBox would be sufficient in this specific case, 
// but it can cause errors in case the child want to be as big as possible.
// So ConstrainedBox is needed to provide a specific constraints.

ListView(
  scrollDirection: Axis.horizontal,
  children: [
    UnconstrainedBox(
      child: ConstrainedBox(
        constraints: BoxConstraints.loose(Size(160, 250)),
        child: Column(
          children: [
            Container(
              width: 160.0,
              height: 200,
              color: Colors.red,
            ),
          ],
        ),
      ),
    ),
 ],
)