didAdoptChild method Null safety

void didAdoptChild(
  1. RenderBox child
)

Called during RenderSliverMultiBoxAdaptor.adoptChild or RenderSliverMultiBoxAdaptor.move.

Subclasses must ensure that the SliverMultiBoxAdaptorParentData.index field of the child's RenderObject.parentData accurately reflects the child's index in the child list after this function returns.

Implementation

void didAdoptChild(RenderBox child);