Book Image

React Native By Example

By : Richard Kho
Book Image

React Native By Example

By: Richard Kho

Overview of this book

React Native's ability to build performant mobile applications with JavaScript has resulted in its popularity amongst developers. Developers now have the luxury to create incredible mobile experiences that look and feel native to their platforms with the comfort of a well-known language and the popular React.js library. This book will show you how to build your own native mobile applications for the iOS and Android platforms while leveraging the finesse and simplicity of JavaScript and React. Throughout the book you will build three projects, each of increasing complexity. You will also link up with the third-party Facebook SDK, convert an app to support the Redux architecture, and learn the process involved in making your apps available for sale on the iOS App Store and Google Play. At the end of this book, you will have learned and implemented a wide breadth of core APIs and components found in the React Native framework that are necessary in creating great mobile experiences.
Table of Contents (17 chapters)
Title Page
About the Author
About the Reviewer
Customer Feedback

Introducing Redux

Redux is a very popular library that many developers use to help write their React applications. On its GitHub repo, Redux bills itself as a predictable state container for JavaScript apps. Rather than having each component manage its own independent state, Redux proposes that your entire React application is governed by one single state. This single state is then proliferated through each component and allows the majority of your app's logic to live in reusable functions.

The three principles of Redux

You can describe Redux by referring to three key principles regarding the state: it needs to be the single source of truth for your application, be read-only, and be modifiable only by pure functions.

Single state tree

In Redux, rather than having each component manage its own state, we deal with one single-state tree that contains all the logic in our application. For example, for the Tasks app we built in the first two chapters, you can visualize it as follows: