A shopper Flutter app that use BloC pattern and CRUD operations

May 31, 2020 BLoC, Flutter App

The project is maintained by a non-profit organisation, along with an amazing collections of Flutter samples. We’re trying to make continuous commits for changes along with the Flutter tech progress.

The Desigin Pattern

Goals for this sample

Shows a state management approach using the Provider package,mainly use StreamProvider and ChangeNotifier.
Show a logic for fetch data from different datasources as above graph.

Memory fetch data

Change repositories/catalog.dart

const dataSource = 'memory';

repositories/catalog.dart A route distribution for fetching data memory/catalog.dart All CURD operations will be herefile/catalog.dart Define data

Sqlite fetch data

Change repositories/catalog.dart

const dataSource = 'db';

Notice

You can’t use cart.items.contains(item) to compare catalog whether exists in cart,because use database reload data.Add contains method in cart controller,and use below