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Flutter for Beginners

Flutter for Beginners

By : Thomas Bailey, Biessek
4.4 (8)
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Flutter for Beginners

Flutter for Beginners

4.4 (8)
By: Thomas Bailey, 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, making it 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. This book will guide you through developing your first app from scratch all the way to production release. Starting with the setup of your development environment, you'll learn about your app's UI design and responding to user input via Flutter widgets, manage app navigation and screen transitions, and create widget animations. You'll then explore the rich set of third party-plugins, including Firebase and Google Maps, and get to grips with testing and debugging. Finally, you'll get up to speed with releasing your app to mobile stores and the web. By the end of this Flutter book, you'll have gained the confidence to create, edit, test, and release a full Flutter app on your own.
Table of Contents (18 chapters)
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1
Section 1: Introduction to Flutter and Dart
6
Section 2: The Flutter User Interface – Everything Is a Widget
10
Section 3: Developing Fully Featured Apps
14
Section 4: Testing and App Release

Understanding the Navigator widget

Mobile applications will often contain more than one screen. If you are an Android or iOS developer, you probably know about Activity or ViewController classes that represent screens on those platforms.

An important class for navigation between screens in Flutter is the Navigator widget, which is responsible for managing screen changes while maintaining a history of screens so that the user can move back through screens (if the app allows it).

A new screen in Flutter is just a new widget that is effectively placed on top of another. This is managed through the concept of routes, which define the possible navigable routes a user can follow through the app. As you may already have guessed, the Route class is a helper for Flutter to work on the navigation workflow.

The main classes in the navigation layer are as follows:

  • Navigator: The Route manager.
  • Overlay: Navigator uses this to specify the appearances of the routes.
  • Route...
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