React Native Best Practices

What this best practices guide is

A practical guide to building React Native apps the way the React Native and Expo docs recommend today. It covers project setup and upgrades, components and styling, lists, performance and threads, navigation and deep links, security and storage, accessibility, and testing and release, with short examples you can copy.

It has 8 chapters and 35 practices, each with why it matters, what to do and what to avoid. For mobile and React developers.

Chapter by chapter

1. Project setup and upgrades (5 practices)

How to start a React Native project so it stays on the supported path: a framework, the New Architecture, Hermes V1 and the strict TypeScript API, plus a habit of small upgrades.

2. Components and styling (5 practices)

How to build screens that look right on every device: styles, pressables, window size, platform differences and images.

3. Lists that scroll smoothly (4 practices)

Most slow React Native screens are long lists. This chapter covers virtualized lists, stable keys, item memoization and the FlatList props worth tuning.

4. Performance, threads and animations (5 practices)

Why React Native apps drop frames, how the JavaScript and UI threads share the work, and how to measure and fix slowness the way the React Native performance guide describes.

5. Navigation and deep links (4 practices)

How to structure navigation, link into the app from outside and sign users in through a browser without exposing tokens.

6. Security and storage (4 practices)

What can and cannot be kept secret in a mobile app, where to store tokens, and how to keep personal data out of logs and backups.

7. Accessibility (4 practices)

How to make every screen work with VoiceOver and TalkBack: labels, roles, states, grouping, announcements and testing on real devices.

8. Testing and release (4 practices)

How to test components and flows, ship release builds you can debug, and roll out updates without surprises.

How it works on Sefism

The guide reads like a short course: a syllabus, then one chapter per page in a focused reader, with a quiz at the end of each chapter for members. The opening chapters are open to everyone. Adding it to your account uses credits, opens every chapter and keeps your progress.

Every claim is checked against the sources listed on the page (8 cited).