LIVO #

LIVO — Live Objects
A reactive object-relationship state management system for Flutter with field-level, object-level, and relationship-based reactivity.

🧠 What is LIVO? #

LIVO (Live Objects) is a model-driven state management solution for Flutter.

Instead of managing state through providers, streams, or immutable snapshots, LIVO treats your Dart objects as live state.

• Objects hold state
• Fields are reactive
• Relationships propagate changes automatically
• UI stays in sync with minimal boilerplate

✨ Core Philosophy #

• Models are plain Dart objects
• State changes happen via normal field mutation
• UI reacts automatically
• No ChangeNotifier, providers, streams, or boilerplate
• Supports:
  • Object-level reactivity
  • Field-level reactivity
  • Nested & shared models
  • One → Many and Many ↔ Many relationships

Think of LIVO as Live, connected objects driving your UI

✨ Features #

• ✅ Reactive models with automatic UI updates
• ✅ Object-wise reactivity (watch)
• ✅ Field-wise reactivity (watchField)
• ✅ Computed / derived reactivity (watchComputed)
• ✅ ReactiveList & ReactiveMap
• ✅ Nested & shared models
• ✅ One → Many and Many ↔ Many relationships
• ✅ Debug inspection support
• ✅ Minimal boilerplate
• ✅ No code generation required

🚀 Installation: #

dependencies:
  livo: <latest_version>

🧩 Basic Example: #

import 'package:livo/livo.dart';

class Task extends ReactiveModel {
  String _title;
  bool _completed = false;

  Task(this._title);

  String get title => _title;
  set title(String value) {
    _title = value;
    notifyListeners(#title);
  }

  bool get completed => _completed;
  set completed(bool value) {
    _completed = value;
    notifyListeners(#completed);
  }
}

🔗 Relationships #

• One → Many

class Dashboard extends ReactiveModel {
  final List<Task> tasks;

  Dashboard(this.tasks) {
    for (final t in tasks) addNested(t);
  }
}

• Many ↔ Many

class Group extends ReactiveModel {
  final String name;
  final List<Task> tasks;

  Group(this.name, this.tasks) {
    for (final t in tasks) addNested(t);
  }
}

🧭 Why LIVO? #

🔄 Migration Notice: #

This package replaces reactive_orm. #

reactive_orm has been deprecated and rebranded as LIVO to remove ORM/database confusion and better reflect its purpose as a state management system. #

Migration is simple: #

- import 'package:reactive_orm/reactive_orm.dart';
+ import 'package:livo/livo.dart';

📌 Summary: #

LIVO is ideal for: #

• Model-centric Flutter apps
• Fine-grained UI reactivity
• Complex domain models with relationships
• Clean architecture with minimal overhead