maybeOf static method Null safety

ReorderableListState? maybeOf(
  1. BuildContext context
)

The state from the closest instance of this class that encloses the given context.

This method is typically used by ReorderableList item widgets that insert or remove items in response to user input.

If no ReorderableList surrounds the context given, then this function will return null.

This method can be expensive (it walks the element tree).

See also:

Implementation

static ReorderableListState? maybeOf(BuildContext context) {
  assert(context != null);
  return context.findAncestorStateOfType<ReorderableListState>();
}