Tutorial Flutter - How to center-alignment column and row item

If you want the whole table to be Centered, use the mainAxisAlignment property of Column.

Column

`mainAxisAlignment: MainAxisAlignment.center` => Center Column contents vertically, `crossAxisAlignment: CrossAxisAlignment.center` => Center Column contents horizontally,

Row

`mainAxisAlignment: MainAxisAlignment.center` => Center Row contents horizontally, `crossAxisAlignment: CrossAxisAlignment.center` => Center Row contents vertically,