Event State Processor

A Flutter package that wrap flutter bloc package for clearer implementation. It's more similar to MVI pattern which:

• Reflect data state to view (ui)
• Process ui event to update state then make change in ui

Getting Started

This package is use to develop app which use Bloc pattern clearer, quicker, easier by wrapping complicated bloc usage.

Usage

Using ProcessorProvider instead of BlockProvider for providing

+ event processor instance or  
+ create processor instance for use in child widget.  

Example apps

Implement screen widget

1. Create State extends DataState class. For ex: LoginState
2. Create Event extends UiEvent class. For ex: LoginEvent

   1. Create Login screen and implement 3 function class LoginScreen extends CoreScreen<LoginEvent, LoginState, LoginEventProcessor> 3.1 createEventProcessor: return EventToStateProcessor for use in this widget or its child. For ex just: return LoginEventProcessor(); 3.2 buildScreenUi: for build screen ui base on data state by using

      • buildStateBuilderWidget
      • buildStateConsumerWidget
      • buildStateListenerWidget
      • buildStateSelectorWidget
      • and other widgets for UI elements which is not depended to state

      For ex: if state is state.isLoading is true then show ProgressBar

      buildStateBuilderWidget(
                  rebuildOnCondition: (p, c) => p.isLoading != c.isLoading,
                  builder: () => Visibility(
                      visible: state.isLoading, child: LoadingIndicatorWidget())),
      

Dart Versions

• Dart 2: >= 2.6.0

Contributor

• Justin Lewis (Maintainer)

License

MIT