Installation

flutter pub add advanced_forms

Then import the one library the package exposes:

import 'package:advanced_forms/advanced_forms.dart';

Requirements

The package is developed against the lower bound, so an app on an older-but-supported Flutter is not an afterthought. Nothing in it is web- or mobile-specific.

Optional companions

None are required. Two are worth knowing about:

• A DI package — ChangeNotifierProvider from provider is a one-line way to own a form controller and have it disposed for you. The example app uses it; a StatefulWidget works just as well. See Lifecycle and ownership.
• An Agent Skill — if you write forms with Claude Code or another agent that supports skills, copy skills/advanced_forms/ into your project and the agent generates idiomatic advanced_forms code.

Coming from leancode_forms 0.1.x

advanced_forms 0.2 is the successor of leancode_forms, which is discontinued on pub.dev. The form-building model is the same — fields, form controllers, validators, subforms — and the machinery underneath is new: bloc and rxdart are gone, every *Cubit is an Advanced*Controller, and validation was rebuilt around named validation modes.

The migration guide walks through the renames, the behaviour changes that compile but behave differently, and the widget-side clean-up. Budget an hour for a medium-sized app; most of it is deleting TextEditingController plumbing.

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