reverseCrossAxis property
final
Whether the children should be placed in the opposite order of increasing coordinates in the cross axis.
For example, if the cross axis is horizontal, the children are placed from left to right when reverseCrossAxis is false and from right to left when reverseCrossAxis is true.
Typically set to the return value of axisDirectionIsReversed applied to the SliverConstraints.crossAxisDirection.
Implementation
final bool reverseCrossAxis