Book Image

Flutter Cookbook

By : Simone Alessandria, Brian Kayfitz
4 (1)
Book Image

Flutter Cookbook

4 (1)
By: Simone Alessandria, Brian Kayfitz

Overview of this book

“Anyone interested in developing Flutter applications for Android or iOS should have a copy of this book on their desk.” – Amazon 5* Review Lauded as the ‘Flutter bible’ for new and experienced mobile app developers, this recipe-based guide will teach you the best practices for robust app development, as well as how to solve cross-platform development issues. From setting up and customizing your development environment to error handling and debugging, The Flutter Cookbook covers the how-tos as well as the principles behind them. As you progress, the recipes in this book will get you up to speed with the main tasks involved in app development, such as user interface and user experience (UI/UX) design, API design, and creating animations. Later chapters will focus on routing, retrieving data from web services, and persisting data locally. A dedicated section also covers Firebase and its machine learning capabilities. The last chapter is specifically designed to help you create apps for the web and desktop (Windows, Mac, and Linux). Throughout the book, you’ll also find recipes that cover the most important features needed to build a cross-platform application, along with insights into running a single codebase on different platforms. By the end of this Flutter book, you’ll be writing and delivering fully functional apps with confidence.
Table of Contents (17 chapters)
About Packt

How it works...

In a Firebase project, which is the entry point for any Firebase service that you want to implement into your app, you can create a Firebase Firestore database, which is a NoSQL database that stores data in the cloud.

In a Firestore hierarchy, databases contain Collections, which, in turn, contain Documents. Documents contain key-value pairs. There are a few rules you should be aware of when designing a Firestore database:

  • The Firestore root can contain collections but cannot contain documents.
  • Collections must contain documents, not other collections.
  • Each document can take up to 1 MB.
  • Documents cannot contain other documents.
  • Documents CAN contain collections
  • Each document has a documentID: documentID is a unique identifier of each document in a collection.

To sum things up, the hierarchy of Firestore data is as follows:

Database > Collection > Document > key-value

All methods in a Firebase Firestore database are asynchronous.

In the code you have written...