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React and React Native - Fifth Edition

You're reading from  React and React Native - Fifth Edition

Product type Book
Published in Apr 2024
Publisher Packt
ISBN-13 9781805127307
Pages 508 pages
Edition 5th Edition
Languages
Authors (2):
Mikhail Sakhniuk Mikhail Sakhniuk
Profile icon Mikhail Sakhniuk
Adam Boduch Adam Boduch
Profile icon Adam Boduch
View More author details
Toc

Table of Contents (33) Chapters close

Preface 1. Part I: React
2. Why React? 3. Rendering with JSX 4. Understanding React Components and Hooks 5. Event Handling in the React Way 6. Crafting Reusable Components 7. Type-Checking and Validation with TypeScript 8. Handling Navigation with Routes 9. Code Splitting Using Lazy Components and Suspense 10. User Interface Framework Components 11. High-Performance State Updates 12. Fetching Data from a Server 13. State Management in React 14. Server-Side Rendering 15. Unit Testing in React 16. Part II: React Native
17. Why React Native? 18. React Native under the Hood 19. Kick-Starting React Native Projects 20. Building Responsive Layouts with Flexbox 21. Navigating Between Screens 22. Rendering Item Lists 23. Geolocation and Maps 24. Collecting User Input 25. Responding to User Gestures 26. Showing Progress 27. Displaying Modal Screens 28. Using Animations 29. Controlling Image Display 30. Going Offline 31. Other Books You May Enjoy
32. Index

Selecting from a list of options

In web applications, you typically use the <select> element to let the user choose from a list of options. React Native comes with a Picker component, which works on both iOS and Android, but in terms of reducing the React Native app size, the Meta team decided to delete it in future releases and extract Picker to its own package. To use that package, firstly, we install it in a clean project by running this command:

npx expo install @react-native-picker/picker

There is some trickery involved with styling this component based on which platform the user is on, so let’s hide all of this inside a generic Select component. Here’s the Select.ios.js module:

export default function Select(props: SelectProps) {
  return (
    <View style={styles.pickerHeight}>
      <View style={styles.pickerContainer}>
        <Text style={styles.pickerLabel}>{props.label}</Text>
        <Picker style={styles.picker...
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