go_router 0.3.1

A declarative router for Flutter based on Navigation 2 supporting deep linking, data-drive routes and more

example/lib/main.dart

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

import 'shared/data.dart';
import 'shared/pages.dart';

void main() => runApp(App());

/// sample class using simple declarative routes
class App extends StatelessWidget {
  App({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) => MaterialApp.router(
        routeInformationParser: _router.routeInformationParser,
        routerDelegate: _router.routerDelegate,
        title: 'Declarative Routes GoRouter Example',
      );

  late final _router = GoRouter(routes: _routesBuilder, error: _errorBuilder);
  List<GoRoute> _routesBuilder(BuildContext context, String location) => [
        GoRoute(
          pattern: '/',
          builder: (context, args) => MaterialPage<FamiliesPage>(
            key: const ValueKey('FamiliesPage'),
            child: FamiliesPage(families: Families.data),
          ),
        ),
        GoRoute(
          pattern: '/family/:fid',
          builder: (context, args) {
            final family = Families.family(args['fid']!);

            return MaterialPage<FamilyPage>(
              key: ValueKey(family),
              child: FamilyPage(family: family),
            );
          },
        ),
        GoRoute(
          pattern: '/family/:fid/person/:pid',
          builder: (context, args) {
            final family = Families.family(args['fid']!);
            final person = family.person(args['pid']!);

            return MaterialPage<PersonPage>(
              key: ValueKey(person),
              child: PersonPage(family: family, person: person),
            );
          },
        ),
      ];

  Page<dynamic> _errorBuilder(BuildContext context, GoRouteException ex) =>
      MaterialPage<Four04Page>(
        key: const ValueKey('Four04Page'),
        child: Four04Page(message: ex.nested.toString()),
      );
}