Book Image

Flutter for Beginners - Third Edition

By : Thomas Bailey, Alessandro Biessek
5 (2)
Book Image

Flutter for Beginners - Third Edition

5 (2)
By: Thomas Bailey, Alessandro Biessek

Overview of this book

There have been many attempts at creating frameworks that are truly cross-platform, but most struggle to create a native-like experience at high-performance levels. Flutter achieves this with an elegant design and a wealth of third-party plugins, solidifying its status as the future of mobile app development. If you are a mobile developer who wants to create rich and expressive native apps with the latest Google Flutter framework, this book is for you. You’ll start with the basics of cross-platform development frameworks, specifically Flutter. You’ll then explore the Dart programming language which is the foundation of the Flutter framework. Next, you’ll get a feel for Flutter and how to create your first app, followed by an exploration of the various popular plugins that supplement the Flutter framework. Finally, you’ll explore testing and app release, including some common glitches that you may experience. By the end of this book, you’ll be well-equipped to create and release a basic Flutter app along with gaining a solid understanding of the Flutter framework and Dart language.
Table of Contents (20 chapters)
1
Part 1:Learning the Core Concepts
6
Part 2:Building a Basic Flutter App
11
Part 3:Turning a Simple App into an Awesome App
15
Part 4:Testing and Releasing Your App

Testing and Debugging

Flutter provides great tools to help developers manage their app development and ensure that it is ready for production – from a test API to IDE tools and plugins. This is especially crucial in app development where, unlike in some scenarios such as web pages, a bug fix can take several days to be reviewed by the relevant store, and then be updated on user devices.

In this chapter, you will learn how to add tests to identify bugs within your app, use debugging tools to identify where an issue is within your code, profile your app performance to find bottlenecks, and inspect UI widgets.

We will start this chapter by exploring how you can unit test your Dart code. This can be useful if you create a reusable library of functions that you are using across many apps and want to ensure that any changes to the library code continue to function as intended.

The following topics will be covered in this chapter:

  • Unit testing
  • Widget testing
  • ...