flutter_form_bloc 0.10.0

Create Beautiful Forms in Flutter. The easiest way to Prefill, Async Validation, Update Form Fields, and Show Progress, Failures or Navigate by Reacting to the Form State.

example/lib/main.dart

import 'package:bloc/bloc.dart';
import 'package:flutter/material.dart';
import 'package:flutter_form_bloc_example/bloc_delegate.dart';
import 'package:flutter_form_bloc_example/forms/complex_async_prefilled_form.dart';
import 'package:flutter_form_bloc_example/forms/complex_login_form.dart';
import 'package:flutter_form_bloc_example/forms/crud_form.dart';
import 'package:flutter_form_bloc_example/forms/dynamic_fields_form.dart';
import 'package:flutter_form_bloc_example/forms/field_bloc_async_validation_form.dart';
import 'package:flutter_form_bloc_example/forms/form_fields_example_form.dart';
import 'package:flutter_form_bloc_example/forms/manually_set_field_bloc_error_form.dart';
import 'package:flutter_form_bloc_example/forms/not_auto_validation_form.dart';
import 'package:flutter_form_bloc_example/forms/progress_form.dart';
import 'package:flutter_form_bloc_example/forms/simple_async_prefilled_form.dart';
import 'package:flutter_form_bloc_example/forms/login_form.dart';
import 'package:flutter_form_bloc_example/forms/simple_register_form.dart';
import 'package:flutter_form_bloc_example/styles/themes.dart';
import 'package:flutter_form_bloc_example/widgets/widgets.dart';
import 'package:form_bloc/form_bloc.dart';

void main() {
  WidgetsFlutterBinding.ensureInitialized();
  BlocSupervisor.delegate = MyBlocDelegate();

  // FormBlocDelegate.notifyOnFieldBlocTransition = true;
  // FormBlocDelegate.notifyOnFormBlocTransition = true;

  runApp(App());
}

class App extends StatelessWidget {
  const App({Key key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      theme: Themes.formTheme,
      initialRoute: 'home',
      routes: {
        'home': (context) => HomeScreen(),
        'success': (context) => SuccessScreen(),
      },
    );
  }
}

class HomeScreen extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Flutter Form BLoC Example'),
        elevation: 2,
      ),
      body: ListView.separated(
        separatorBuilder: (_, __) => Divider(height: 1),
        itemCount: Form.forms.length,
        itemBuilder: (context, index) => ListItem(index, Form.forms[index]),
      ),
    );
  }
}

class ListItem extends StatelessWidget {
  final int index;
  final Form form;
  const ListItem(this.index, this.form, {Key key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return ListTile(
      leading: Container(
        height: 28,
        child: CircleAvatar(
          backgroundColor: Theme.of(context).iconTheme.color,
          child: Text(
            '${index + 1}',
            style: TextStyle(
              color: Theme.of(context).scaffoldBackgroundColor,
            ),
          ),
        ),
      ),
      isThreeLine: true,
      title: Text(form.title),
      subtitle: Text(
        form.description,
        maxLines: 3,
        overflow: TextOverflow.ellipsis,
      ),
      onTap: () => Navigator.of(context)
          .push<void>(MaterialPageRoute(builder: (_) => form.widget)),
    );
  }
}

class Form {
  final String title;
  final String description;
  final Widget widget;

  Form(this.title, this.description, this.widget);

  static List<Form> forms = [
    Form(
      'Form with dynamic fields',
      'A form with dynamic fields',
      DynamicFieldsForm(),
    ),
    Form(
      'Form with progress',
      'Used for forms with file fields like images.',
      ProgressForm(),
    ),
    Form(
      'Form fields with async validators',
      'Username and Email Availability with an Asynchronous Validator while typing.',
      FieldBlocAsyncValidationForm(),
    ),
    Form(
      'Simple login',
      'Stateless, validators, text fields, and success response.',
      LoginForm(),
    ),
    Form(
      'Complex login',
      'Text field with used emails suggestions (delete on long press), dropdown field, focus nodes, and multiple responses.',
      ComplexLoginForm(),
    ),
    Form(
      'Simple register',
      'Focus nodes, complex validators, text fields, check box field, and success response.',
      SimpleRegisterForm(),
    ),
    Form(
      'Form Fields Example',
      'TextField, Dropdown, Checkbox, RadioButtonGroup, CheckboxGroup',
      FormFieldsExampleForm(),
    ),
    Form(
      'Not Auto Validation Example',
      'Form without auto validation.',
      NotAutoValidationForm(),
    ),
    Form(
      'Manually set field error',
      'Add error to the FieldBloc based on backend response.',
      ManuallySetFieldBlocErrorForm(),
    ),
    Form(
      'Simple Async prefilled form',
      'Prefilled form with async data like Shared Preferences.',
      SimpleAsyncPrefilledForm(),
    ),
    Form(
      'Complex Async prefilled form',
      'Prefilled form with async data (like API fetch), and retry when fail to load.',
      ComplexAsyncPrefilledForm(),
    ),
    Form(
      'CRUD not prefilled',
      'CRUD not prefilled',
      CrudForm(),
    ),
    Form(
      'CRUD prefilled',
      'CRUD prefilled',
      CrudForm(
        name: 'Giancarlo',
      ),
    ),
  ];
}