freezer/lib/page_routes/basic_page_route.dart

import 'package:flutter/widgets.dart';

abstract class BasicPageRoute<T> extends PageRoute<T> {
  final Duration transitionDuration;
  final bool maintainState;

  BasicPageRoute({
    this.transitionDuration = const Duration(milliseconds: 300),
    this.maintainState = true,
    RouteSettings? settings,
  }) : super(settings: settings);

  @override
  bool get barrierDismissible => false;

  @override
  Color? get barrierColor => null;

  @override
  String? get barrierLabel => null;
}