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

Using ActionSheetIOS

The ActionSheetIOS API lets us display either an action sheet or share sheet for the user to interact with.

The action sheet is an overlay of options that the user can interact with in the app.

The Share sheet allows the user to share almost anything, anywhere, using the built-in sharing system. This could mean sending content in the form of a text message, e-mail, or to a third-party app.

Creating an action sheet

The two methods that ActionSheetIOS makes available are showActionSheetWithOptions and showShareActionSheetWithOptions.

The first method, showActionSheetWithOptions, accepts two arguments: an options object and a callback function.

The options object must contain at least one of the following properties. We use all five in this example:

  • options: This is an array of strings that map to the multiple options that appear in the overlay.
  • cancelButtonIndex: This is a number that points to the index where the Cancel button, if it exists, is located in the options array. This...