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...

When you break them down, the Flexible and Expanded widgets are quite beautiful in their simplicity.

The Expanded widget will take up all the remaining unconstrained space from a Row or a Column. In the preceding example, we placed three containers in the first row. The container was given a width of 100 units. The last container was given a width of 40 units. The middle container is wrapped in an Expanded widget, so it consumes all the remaining space in the row. These explicit values are referred to as constrained spacing.

The width calculation for the middle container would look like this:

These types of widgets can be very useful when you need to push widgets to the other edges of the screen, such as when you pushed the footer banner to the bottom of the screen:

child: Container(),

It is very common to create an Expanded widget with an empty container that will simply consume the remaining space in a...