How do I get all nodes in a parent in JavaFX?

Question

In C# I found a method that was pretty sweet that allowed you to get all the descendants and all of THEIR descendants from a specified control.

I\'m looking for a si

Answer 1

This works for me:

public class FXUtil {

    public static final List getAllChildren(final Parent parent) {
        final List result = new LinkedList<>();

        if (parent != null) {

            final List childrenLvl1 = parent.getChildrenUnmodifiable();
            result.addAll(childrenLvl1);

            final List childrenLvl2 =
                    childrenLvl1.stream()
                                .filter(c -> c instanceof Parent)
                                .map(c -> (Parent) c)
                                .map(FXUtil::getAllChildren)
                                .flatMap(List::stream)
                                .collect(Collectors.toList());
            result.addAll(childrenLvl2);
        }

        return result;
    }

}