Book Image

React Native Blueprints

By : Emilio Rodriguez Martinez
Book Image

React Native Blueprints

By: Emilio Rodriguez Martinez

Overview of this book

Considering the success of the React framework, Facebook recently introduced a new mobile development framework called React Native. With React Native's game-changing approach to hybrid mobile development, you can build native mobile applications that are much more powerful, interactive, and faster by using JavaScript This project-based guide takes you through eight projects to help you gain a sound understanding of the framework and helps you build mobile apps with native user experience. Starting with a simple standalone groceries list app, you will progressively move on to building advanced apps by adding connectivity with external APIs, using native features, such as the camera or microphone, in the mobile device, integrating with state management libraries such as Redux or MobX, or leveraging React Native’s performance by building a full-featured game. This book covers the entire feature set of React Native, starting from the simplest (layout or navigation libraries) to the most advanced (integration with native code) features. By the end of this book, you’ll be able to build professional Android and iOS applications using React Native.
Table of Contents (15 chapters)
Title Page
Credits
About the Author
About the Reviewers
www.PacktPub.com
Customer Feedback
Preface

Chapter 5. Guitar Tuner

ReactNative covers most of the components and APIs that are available in iOS and Android. Points such as UI components, navigation, or networking can be fully set up within our JavaScript code using React Native components, but not all the platform's capabilities have been mapped from the native world to the JavaScript world. Nonetheless, React Native offers a way to write real native code and have access to the full power of the platform. If React Native doesn't support a native feature that you need, you should be able to build it yourself.

In this chapter, we are going to use React Native's ability to enable our JavaScript code to communicate with custom native code; specifically, we will write a native module to detect frequencies coming from the device's microphone. These capabilities shouldn't be part of the day-to-day tasks for a React Native developer but, eventually, we may need to use modules or SDKs, which are only available on Objective-C, Swift, or Java...