Book Image

Flutter for Beginners - Third Edition

By : Thomas Bailey, Alessandro Biessek
5 (2)
Book Image

Flutter for Beginners - Third Edition

5 (2)
By: Thomas Bailey, Alessandro Biessek

Overview of this book

There have been many attempts at creating frameworks that are truly cross-platform, but most struggle to create a native-like experience at high-performance levels. Flutter achieves this with an elegant design and a wealth of third-party plugins, solidifying its status as the future of mobile app development. If you are a mobile developer who wants to create rich and expressive native apps with the latest Google Flutter framework, this book is for you. You’ll start with the basics of cross-platform development frameworks, specifically Flutter. You’ll then explore the Dart programming language which is the foundation of the Flutter framework. Next, you’ll get a feel for Flutter and how to create your first app, followed by an exploration of the various popular plugins that supplement the Flutter framework. Finally, you’ll explore testing and app release, including some common glitches that you may experience. By the end of this book, you’ll be well-equipped to create and release a basic Flutter app along with gaining a solid understanding of the Flutter framework and Dart language.
Table of Contents (20 chapters)
1
Part 1:Learning the Core Concepts
6
Part 2:Building a Basic Flutter App
11
Part 3:Turning a Simple App into an Awesome App
15
Part 4:Testing and Releasing Your App

Releasing your app on Android

In Android, appbundle is the format expected to be published in the Google Play Store. When we run the flutter build appbundle command, we generate the file ready for deployment.

You may have previously heard of the Android APK (short for Android application package) option instead of appbundle. Releasing your app as an APK is no longer allowed by Google as an option on the Play Store. Under the covers, an appbundle effectively generates device-specific APKs but hides that complexity away.

Before we generate the file for deployment and publishing in any store, we need to make sure all of the information is correct (that is, the name and package), all needed assets are provided, and all platform-specific adjustments are made.

Let’s start by preparing our Hello World app for release on Google Play so that we can review all of the final steps to publishing a Flutter app.

AndroidManifest and build.gradle

For each platform, Flutter has...