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React and React Native

You're reading from   React and React Native Build cross-platform JavaScript apps with native power for mobile, web and desktop

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Product type Paperback
Published in Mar 2017
Publisher Packt
ISBN-13 9781786465658
Length 500 pages
Edition 1st Edition
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Author (1):
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Adam Boduch Adam Boduch
Author Profile Icon Adam Boduch
Adam Boduch
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Toc

Table of Contents (27) Chapters Close

Preface 1. Why React? 2. Rendering with JSX FREE CHAPTER 3. Understanding Properties and State 4. Event Handling – The React Way 5. Crafting Reusable Components 6. The React Component Lifecycle 7. Validating Component Properties 8. Extending Components 9. Handling Navigation with Routes 10. Server-Side React Components 11. Mobile-First React Components 12. Why React Native? 13. Kickstarting React Native Projects 14. Building Responsive Layouts with Flexbox 15. Navigating Between Screens 16. Rendering Item Lists 17. Showing Progress 18. Geolocation and Maps 19. Collecting User Input 20. Alerts, Notifications, and Confirmation 21. Responding to User Gestures 22. Controlling Image Display 23. Going Offline 24. Handling Application State 25. Why Relay and GraphQL? 26. Building a Relay React App

Collecting text input

Collecting text input seems like something that should be super easy to implement, even in React Native. It's easy, but there's a lot to think about when implementing text inputs. For example, should it have placeholder text? Is this sensitive data that shouldn't be displayed on screen? Should we process text as it's entered, or when the user moves to another field? The list goes on, and I only have so much room in this book.

What's markedly different about mobile text input versus traditional web text input is that the former has its own built-in virtual keyboard that we can configure and respond to. So without further delay, let's get coding. We'll render several instances of the <TextInput> component:

import React, { Component, PropTypes } from 'react'; 
import { 
  AppRegistry, 
  Text, 
  TextInput, 
  View, 
} from 'react-native'; 
import { fromJS } from 'immutable'; 
 
import styles from ...
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