expandedAlignment property Null safety
Specifies the alignment of children, which are arranged in a column when the tile is expanded.
Modifying this property controls the alignment of the column within the expanded tile, not the alignment of children widgets within the column. To align each child within children, see expandedCrossAxisAlignment.
The width of the column is the width of the widest child widget in children.
When the value is null, the value of
expandedAlignment is Alignment.center.
final Alignment? expandedAlignment;