fredgrott

/// Inject (or replace) the M3ETheme extension on a ThemeData.
ThemeData withM3ETheme(ThemeData base, {M3ETheme? override}) {
  // Use any existing M3ETheme, else the provided override, else defaults.
  final current = base.extension<M3ETheme>();
  final next = override ?? current ?? M3ETheme.defaults(base.colorScheme);

  // Merge existing extensions (values) with our M3ETheme, replacing prior ones.
  final Iterable<ThemeExtension<dynamic>> existing = base.extensions.values;
  final List<ThemeExtension<dynamic>> merged = <ThemeExtension<dynamic>>[];
  for (final e in existing) {

fredgrott

// Copyright 2026 Fredrick Allan Grott. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//
// Modified from m3e_design package
// Copyright (c) 2025 Emily Moonstone
// MIT Licnese

// ignore_for_file: prefer_constructors_over_static_methods

fredgrott

// Copyright 2026 Fredrick Allan Grott. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//
// Modified from m3e_design package
// Copyright (c) 2025 Emily Moonstone
// MIT Licnese

// ignore_for_file: prefer_constructors_over_static_methods

fredgrott

Widget build(BuildContext context) {
    return MaterialApp(
      theme: ThemeData(
        extensions: const <ThemeExtension<dynamic>>[
          MyColors(brandColor: Color(0xFF1E88E5), danger: Color(0xFFE53935)),
        ],
      ),
      darkTheme: ThemeData.dark().copyWith(
        extensions: <ThemeExtension<dynamic>>[
          const MyColors(brandColor: Color(0xFF90CAF9), danger: Color(0xFFEF9A9A)),

fredgrott

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

/// Flutter code sample for [ThemeExtension].

@immutable
class MyColors extends ThemeExtension<MyColors> {
  const MyColors({required this.brandColor, required this.danger});

  final Color? brandColor;

fredgrott

// Copyright 2025 Fredrick Allan Grott. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//
// Modified from window_size_classes package by Yuna
// Copyright 2025 under GNU LGPL 3.0

// ignore_for_file: avoid_classes_with_only_static_members

import 'package:flutter/widgets.dart';

fredgrott

final windowHeight = WindowHeight.of(context);

if (windowHeight == WindowHeight.compact) {
   // Adapt UI for limited vertical space
 }

Widget build(BuildContext context) {
     final windowHeight = WindowHeight.of(context);
     // This value can change during the app's lifetime
     // Adapt your layout based on available vertical space...

fredgrott

// Copyright 2025 Fredrick Allan Grott. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//
// Modified from window_size_classes package by Yuna
// Copyright 2025 under GNU LGPL 3.0

import 'package:flutter/widgets.dart';
import 'package:material_expressive_collection/src/adaptive/breakpoints.dart';
import 'package:meta/meta.dart';

fredgrott

final windowWidth = WindowWidth.of(context);

 return switch (wiindowWidth) {
   WindowWidth.compact => CompactLayout(),
   WindowWidth.medium => MediumLayout(),
   WindowWidth.expanded => ExpandedLayout(),   
     _ => LargeLayout(), // large and extraLarge
 };

Widget build(BuildContext context) {

fredgrott

// Copyright 2025 Fredrick Allan Grott. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//
// Modified from window_size_classes package by Yuna
// Copyright 2025 under GNU LGPL 3.0

import 'package:flutter/widgets.dart';
import 'package:material_expressive_collection/src/adaptive/breakpoints.dart';
import 'package:meta/meta.dart';