module_provider 0.0.5 module_provider: ^0.0.5 copied to clipboard
Package to facilitate the creation of applications in modules structure
module_provider #
Package to facilitate the creation applications in hierarquical modules structure
import 'package:module_provider/module_provider.dart';
Module: The module contain the basic structure for determined component, it is created when 'Component' is builded, and disposed when the 'Component' is disposed. When module is dispose, all services are disposable also.
Service: The service provide a class containing functions and properties to components, modules and another services, he is created and maintained in memory, when module be disposable, all services also be disposed.
Component: Componentes are a pages or widgets extended from StatefulWidget, but with a simple class, don't needing create a StatefullWidget and State class. All components need the module referente on your constructor.
Controller: The controller are utilized inside a components, for maintain the logical separated from component, and avoid the recreation of variables when widget build is called.
Simple exemple to use Module Provider #
On main.dart, i will informed that the 'AppModule' is my root module, so the component returned from 'build' function inside the module will be showed.
import 'app_module.dart';
void main() {
runApp(MaterialApp(
title: 'Module Provider',
theme: ThemeData(primarySwatch: Colors.blue,),
home: AppModule()
));
}
app_module.dart
import 'package:flutter/material.dart';
class AppModule extends Module {
@override
List<Inject<Service>> get services => [
Inject((m, arg) => AppService(m)),
Inject((m, arg) => AuthService(m, this.service<AppService>())),
];
@override
List<Inject<Module>> get modules => [
Inject((m, arg) => HomeModule(m)),
Inject((m, arg) => RegistrationModule(m, arg)),
];
@override
List<Inject<Component>> get components => [
Inject((m, arg) => MainPage(m)),
Inject((m, arg) => SplashScreenPage(m)),
];
AppModule() : super(null);
@override
Widget build(BuildContext context) => component<MainPage>();
}
State Storage Classes #
ValueModel #
Simple class to notify listeners when value is changed, you can modify value setting property 'value' or calling method 'updateValue'.
final ValueModel<String> description = ValueModel<String>(initialValue: 'Initial Description');
description.value = 'Another Description';
description.updateValue('Another Description');
ValuesModel #
Controlling multiple "ValueModel"
final ValuesModel packageInfo = ValuesModel({
'name': ValueModel<String>(null),
'version': ValueModel<String>(null),
});
packageInfo.updateValues({
'name': 'useful_classes',
'version': '0.0.1'
});
ValueConsumer #
Simple class to make easy to consume and receive changes notification from ValueNotifier
final ValueModel<String> description = ValueModel<String>(null);
description.value = 'Another Description';
ValueConsumer<String>(
value: description,
builder: (context, value) => Text(value)
);