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 to do it...

You will compile your app in release mode and upload it to the Google Play Store in beta. To do so, follow these steps:

  1. Open the fastfile file into your project's android/fastlane directory.
  2. If in the file there is already a beta lane, comment it out.
  3. At the bottom of the platform: android lane, add the following instructions:
lane :beta do
gradle( task: 'assemble', build_type: 'Release' )
  1. In a terminal window, from the android folder of your project, run the following command:
fastlane beta

If you are using Windows, you might need to change the character table for the terminal. One way to do this is by typing the command: chcp 1252 before running fastlane beta.
  1. Make sure you find the release version of your app file in the build\app\outputs\apk\release directory of your project.

  2. Go to the Google Play Console at

  3. Click on the Open Testing link in the Release | Testing section.

  4. Click on the Create...