open method

void open(DismissibleHint hint)

Registers hint as the open one, closing whichever hint held the floor.

Called by a hint as it opens, before its entry animation starts.

Implementation

void open(DismissibleHint hint) {
  final DismissibleHint? previous = _current;
  _current = hint;
  if (previous != null && !identical(previous, hint)) {
    previous.dismissForExclusivity();
  }
}