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You're reading from  Flutter Cookbook, Second Edition - Second Edition

Product typeBook
Published inMay 2023
Reading LevelIntermediate
PublisherPackt
ISBN-139781803245430
Edition2nd Edition
Languages
Dart
Tools
Flutter
Concepts
Application Development
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Simone Alessandria
Simone Alessandria
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Simone Alessandria

Simone Alessandria wrote his first program when he was 12. It was a text-based fantasy game for the Commodore 64. Now, he is a trainer (MCT), author, speaker, passionate software architect, and always a proud coder. He is the founder and owner of Softwarehouseit. His mission is to help developers achieve more through training and mentoring. He has authored several books on Flutter, including Flutter Projects, published by Packt, and web courses on Pluralsight and Udemy.
Read more about Simone Alessandria

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Using the BLoC pattern

When using the BLoC pattern, everything is a stream of events. A BLoC (which stands for Business Logic Component) is a layer between any source of data and the user interface that will consume the data.

Examples of sources include HTTP data retrieved from a web service, or JSON received from a database.

The BLoC receives streams of data from the source, processes it as required by your business logic, and returns streams of data to its subscribers.

A simple diagram of the role of a BLoC is shown in Figure 11.10:

Diagram Description automatically generated

Figure 10.10: The BLoC pattern

The main reason for using BLoCs is to separate the concern of the business logic of your app from the presentation that occurs with your widgets, and it is especially useful when your apps become more complex and need to share state in several different places. This makes it easier to reuse your code in different parts of your application, or even in different apps. Also, as BLoCs are completely...

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Flutter Cookbook, Second Edition - Second Edition
Published in: May 2023Publisher: PacktISBN-13: 9781803245430
© 2023 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Simone Alessandria

Simone Alessandria wrote his first program when he was 12. It was a text-based fantasy game for the Commodore 64. Now, he is a trainer (MCT), author, speaker, passionate software architect, and always a proud coder. He is the founder and owner of Softwarehouseit. His mission is to help developers achieve more through training and mentoring. He has authored several books on Flutter, including Flutter Projects, published by Packt, and web courses on Pluralsight and Udemy.
Read more about Simone Alessandria

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