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  • Book Overview & Buying Flutter Cookbook, Second Edition
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Flutter Cookbook, Second Edition

Flutter Cookbook, Second Edition - Second Edition

By : Simone Alessandria
4.6 (37)
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Flutter Cookbook, Second Edition

Flutter Cookbook, Second Edition

4.6 (37)
By: Simone Alessandria

Overview of this book

Are you ready to tap into the immense potential of Flutter? With over 1,000 new mobile apps published every day on the Apple and Google Play stores, Flutter is transforming the landscape of app development. It's time for you to join the revolution. Introducing the second edition of Flutter Cookbook, a step-by-step guide designed exclusively for you. Whether you're a seasoned developer or just starting your coding journey, this book is your ultimate companion. Dive into the latest features of Flutter 3.10 and unlock the secrets to building professional-grade, cross-platform applications. With our recipe-based approach, we'll not only show you how to implement Flutter's features but also explain why they work. Through practical examples and real-world execution, you'll gain a deeper understanding of Flutter's inner workings. From crafting stunning UI/UX with widgets to leveraging hot reload and restart techniques, we'll equip you with best practices and invaluable knowledge. As you progress, you'll learn to efficiently manage data, add interactivity and animations, and integrate essential Flutter plugins like maps, camera, voice recognition and more. And let's not forget the dedicated chapter on implementing MLkit powered by TensorFlow Lite. We'll guide you through building custom machine learning solutions, expanding the capabilities of your apps. By the time you reach the end of this comprehensive Flutter book, you'll have the skills and confidence to write and deliver fully functional apps.
Table of Contents (19 chapters)
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17
Other Books You May Enjoy
18
Index

Using StreamBuilder to create reactive user interfaces

Streambuilder is a widget that listens to events emitted by a stream, and whenever an event is emitted, it rebuilds its descendants. Like the FutureBuilder widget, which we saw in Chapter 7, The Future Is Now: Introduction to Asynchronous Programming, StreamBuilder makes it extremely easy to build reactive user interfaces that update every time new data is available.

In this recipe, we will update the text on the screen with StreamBuilder. This is very efficient compared to the update that happens with a setState method and its build call, as only the widgets contained in StreamBuilder are actually redrawn.

Getting ready

In order to follow along with this recipe, you will build an app from scratch. Call this new app streambuilder_app.

How to do it...

For this recipe, we will create a stream and use StreamBuilder to update the user interface. Perform the following steps:

  1. In your new app, in the lib...
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Flutter Cookbook, Second Edition
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