sparkling-flash-8427

readme.md

sparkling-flash-8427

Created with <3 with dartpad.dev.

main.dart

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';

/// Flutter code sample for [MenuAnchor].

void main() => runApp(const MenuApp());

class MenuApp extends StatelessWidget {
  const MenuApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      theme: ThemeData(useMaterial3: true),
      home: const Scaffold(body: SafeArea(child: MyCascadingMenu())),
    );
  }
}

class MyCascadingMenu extends StatefulWidget {
  const MyCascadingMenu({super.key});

  @override
  State<MyCascadingMenu> createState() => _MyCascadingMenuState();
}

class _MyCascadingMenuState extends State<MyCascadingMenu> {
  late FocusNode? _buttonFocusNode = FocusNode();

  @override
  Widget build(BuildContext context) {
    return MenuAnchor(
      menuChildren: <Widget>[
        MenuItemButton(
            focusNode: _buttonFocusNode,
            closeOnActivate: false,
            child: Text("Set focus to null"),
            onPressed: () => setState(() {
                  _buttonFocusNode = null;
                })),
      ],
      builder:
          (BuildContext context, MenuController controller, Widget? child) {
        return TextButton(
          onPressed: () {
            if (controller.isOpen) {
              controller.close();
            } else {
              controller.open();
            }
          },
          child: const Text('OPEN MENU'),
        );
      },
    );
  }
}