Book Image

React and React Native - Third Edition

By : Adam Boduch, Roy Derks
Book Image

React and React Native - Third Edition

By: Adam Boduch, Roy Derks

Overview of this book

React and React Native, Facebook’s innovative User Interface (UI) libraries, are designed to help you build robust cross-platform web and mobile applications. This updated third edition is improved and updated to cover the latest version of React. The book particularly focuses on the latest developments in the React ecosystem, such as modern Hook implementations, code splitting using lazy components and Suspense, user interface framework components using Material-UI, and Apollo. In terms of React Native, the book has been updated to version 0.62 and demonstrates how to apply native UI components for your existing mobile apps using NativeBase. You will begin by learning about the essential building blocks of React components. Next, you’ll progress to working with higher-level functionalities in application development, before putting this knowledge to use by developing user interface components for the web and for native platforms. In the concluding chapters, you’ll learn how to bring your application together with a robust data architecture. By the end of this book, you’ll be able to build React applications for the web and React Native applications for multiple mobile platforms.
Table of Contents (33 chapters)
Section 1: React
Section 2: React Native
Section 3: React Architecture

Handling state

React applications have state that gets passed down to components that render features and require state data. For example, imagine that you're designing an app that uses react-navigation and different screens depend on the same state data. How do you get state data into these screen components? How do they update the application state?

To start with, let's think about where to put your application state. The most natural place to put it would be the App component. So far in this chapter, the examples have directly exported calls to createStackNavigator(). This function is a higher-order function—it returns a new React component. This means that you can wrap your own stateful component around the navigation component that's returned by createStackNavigator().

To illustrate this idea, let's revisit the example from earlier in which you have a Home screen that lists item buttons that navigate to a Details screen. Here's what the new App component...