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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

The enum type

The enum type is a common data type used by most languages to represent a set of finite constant values. In Dart, it is no different. By using the enum keyword, followed by the constant values, you can define an enum type, as illustrated in the following code snippet:

enum PersonType { student, employee }

Note that you only define the value names. enum types are special types with a set of finite values that have an index property representing their value. Now, let's see how it all works.

First, we add a field to our previously defined Person class to store its type, as follows:

class Person {
  ...
  PersonType? type;
  ...
}

Then, we can use it just like any other field, as illustrated in the following code snippet:

main() {
  print(PersonType.values); 
  Person somePerson = Person();
  somePerson.type = PersonType.employee;
  print(somePerson.type);
  print(somePerson...
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