isCollapsed static method

bool isCollapsed(
  1. BuildContext context
)

If this node is collapsed, given a BuildContext.

Implementation

static bool isCollapsed(BuildContext context) {
  final _TreeNodeCollapse? result =
      context.dependOnInheritedWidgetOfExactType<_TreeNodeCollapse>();
  if (result == null) {
    throw Exception('Must have a node with children in the tree.');
  }
  return result._collapsed;
}