mvvm_arch 1.0.2

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mvvm_arch #

Flutter MVVM Architecture

Providing Structure of Model, View, ViewModel (and Controller)

Getting Started #

This project is a starting point for a Dart package, a library module containing code that can be shared easily across multiple Flutter or Dart projects.

For help getting started with Flutter, view our online documentation, which offers tutorials, samples, guidance on mobile development, and a full API reference.

[1.0.2] - 2020-04-21 #

First Release


import 'package:flutter/material.dart';
import 'package:mvvm_arch/commons/lifecycle.dart';
import 'package:mvvm_arch/mvvm_arch.dart' as ui;

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

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.lightGreen,
      home: MyHomeViewController(title: 'Flutter Demo Home Page'),

class MyHomeViewController extends ui.ViewControllerWidget {
  MyHomeViewController({Key key, this.title}) : super(key: key);

  final String title;

  ui.View getView() => _MyMainView();

class _MyMainView extends ui.View<MyHomeViewController, _MyMainViewModel> {
  _MyMainView() {
    $viewModel = _MyMainViewModel(this);

  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      body: Center(
        child: Column(
          children: <Widget>[
              'You have pushed the button this many times:',
            $watch($viewModel.counter, builder: (BuildContext context, count) {
              return Text(
                style: Theme.of(context).textTheme.display1,
      floatingActionButton: FloatingActionButton(
        onPressed: $viewModel.incrementCounter,
        tooltip: 'Increment',
        child: Icon(Icons.add),

class _MyMainViewModel extends ui.ViewModel {
  final LiveData<int> counter;

  _MyMainViewModel(LifeCycleObserver observer)
      : counter = LiveData(observer, initValue: 1);

  void incrementCounter() {

Use this package as a library

1. Depend on it

Add this to your package's pubspec.yaml file:

  mvvm_arch: ^1.0.2

2. Install it

You can install packages from the command line:

with Flutter:

$ flutter pub get

Alternatively, your editor might support flutter pub get. Check the docs for your editor to learn more.

3. Import it

Now in your Dart code, you can use:

import 'package:mvvm_arch/mvvm_arch.dart';
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Learn more about scoring.

We analyzed this package on Jul 11, 2020, and provided a score, details, and suggestions below. Analysis was completed with status completed using:

  • Dart: 2.8.4
  • pana: 0.13.15
  • Flutter: 1.17.5

Analysis suggestions

Package not compatible with SDK dart


  • mvvm_arch that is a package requiring null.


Package Constraint Resolved Available
Direct dependencies
Dart SDK >=2.6.0 <3.0.0
async ^2.4.0 2.4.2
flutter 0.0.0
meta ^1.1.8 1.1.8 1.2.2
Transitive dependencies
collection 1.14.12 1.14.13
sky_engine 0.0.99
typed_data 1.1.6 1.2.0
vector_math 2.0.8 2.1.0-nullsafety
Dev dependencies