Search icon CANCEL
Subscription
0
Cart icon
Your Cart (0 item)
Close icon
You have no products in your basket yet
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Flutter Cookbook

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

Arrow left icon
Product type Paperback
Published in Jun 2021
Publisher Packt
ISBN-13 9781838823382
Length 646 pages
Edition 1st Edition
Languages
Tools
Arrow right icon
Authors (2):
Arrow left icon
Simone Alessandria Simone Alessandria
Author Profile Icon Simone Alessandria
Simone Alessandria
Brian Kayfitz Brian Kayfitz
Author Profile Icon Brian Kayfitz
Brian Kayfitz
Arrow right icon
View More author details
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...
lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $19.99/month. Cancel anytime
Banner background image