可展开的树形菜单

expandable_tree_menu

A Tree of Sub-menus that can be expanded/collapsed and each node can recursively contain another tree.

Using the onSelect callback allows the Tree to be used as a menu.

Getting Started

Add the dependency to the pubspec.yaml file

dependencies: ... expandable_tree_menu: ^0.1.0

Import it

import 'package:expandable_tree_menu/expandable_tree_menu.dart';

Instantiate it somewhere

ExpandableTree( nodes: _nodesFromBooks(bookNodes), nodeBuilder: _nodeBuilder, onSelect: (dynamic node) => _nodeSelected(context, node), ),