maybeIsOpenOf static method

bool? maybeIsOpenOf(
  1. BuildContext context
)

Returns the value of MenuController.isOpen of the ancestor RawMenuAnchor or RawMenuAnchorGroup nearest to the given context, if one exists. Otherwise, returns null.

This method will establish a dependency relationship, so the calling widget will rebuild when the menu opens and closes.

Implementation

static bool? maybeIsOpenOf(BuildContext context) {
  return context.dependOnInheritedWidgetOfExactType<_MenuControllerScope>()?.isOpen;
}