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Flutter Cookbook

You're reading from   Flutter Cookbook Over 100 proven techniques and solutions for app development with Flutter 2.2 and Dart

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Product type Paperback
Published in Jun 2021
Publisher Packt
ISBN-13 9781838823382
Length 646 pages
Edition 1st Edition
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Authors (2):
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Simone Alessandria Simone Alessandria
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Simone Alessandria
Brian Kayfitz Brian Kayfitz
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Brian Kayfitz
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Toc

Table of Contents (17) Chapters Close

Preface 1. Getting Started with Flutter 2. Dart: A Language You Already Know FREE CHAPTER 3. Introduction to Widgets 4. Mastering Layout and Taming the Widget Tree 5. Adding Interactivity and Navigation to Your App 6. Basic State Management 7. The Future is Now: Introduction to Asynchronous Programming 8. Data Persistence and Communicating with the Internet 9. Advanced State Management with Streams 10. Using Flutter Packages 11. Adding Animations to Your App 12. Using Firebase 13. Machine Learning with Firebase ML Kit 14. Distributing Your Mobile App 15. Flutter Web and Desktop 16. About Packt

How it works...

In the preceding code, we are calling the getData() method, but after that, we are adding the then function.

Note the following:

  • The getData() method returns a Future. Futures are generics, so you have the option to specify the type of Future you are returning; if the return value of a method is Future<int>it means that your method will return a Future containing an integer number. In this case, specifying the type is not required, so we could also write the following:
Future getData() async {

The preceding code would work just as well.

  • The getData() method is marked as async. It is considered a good practice to mark your asynchronous methods with the async keyword, but it's not required in this example (it is only required when using the await statement, which we'll see in the next recipe in this chapter: Using async/await to remove callbacks).
  • The http...
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