[Flutter] Package Management (7) Flutter State Management BLoC from Basics to Practice

I. Introduction

State management is a very important topic in Flutter development. A correct state management strategy can make our code clearer and easier to maintain.

This article takes an in-depth look at a popular approach to state management: BLoC. We'll start with the basic concepts of BLoC, and then gradually drill down to more complex usage scenarios. Using the example of a shopping cart application, we will show how to use BLoC to manage the state of the application. This is Xiaoyu Youth's blog published on CSDN in 2023. If you don't see it on CSDN, please contact me.

2. The basic concept of BLoC

BLoC (Business Logic Component) is a design pattern for separating business logic and UI. In the BLoC pattern, we put the state management and business logic of the application in the BLoC instead of handling it directly in the widget. This makes our UI code much cleaner