This chapter is the starting point of the React Native Reference: a topic collection that – unlike our beginner tutorial – doesn't build ONE shared project step by step, but instead explains every topic (every component, API, UI element) individually, each with its own small example project. Meant for targeted lookup, not necessarily for working through linearly.

Prerequisites

This reference assumes you already know the basics of React Native – components, props, state, JSX. If not, our "React Native for Beginners" tutorial is the better starting point; here we dive straight into concrete building blocks without re-explaining fundamentals.

How this reference is structured

Every topic in this series follows the same, always-identical five-step pattern:

1. Description – what the topic is and what it's used for.
2. Short example – the minimal code snippet that shows the concept.
3. Complete project – a standalone mini-project just for this topic, from project creation to a working result.
4. Explanation – every function used, every prop, every import explained line by line.
5. Outputs – what you should see on screen once everything works.

Because every topic gets its OWN mini-project, you can jump directly to the topic you currently need without having read earlier chapters – unlike our continuous beginner project, where chapters build on each other.

The five topic areas

• Components – React Native's built-in building blocks (lists, ScrollView, navigation, input fields, ...).
• APIs – device features and system dialogs (Switch, Alert).
• UI elements – how to build typical interface patterns (buttons, tables, search bars, animations, ...).
• Advanced concepts – networking, threads, screen transitions, platform detection.
• Example apps – complete, small apps (ToDo, calendar, emoji picker, password manager, BMI calculator, blog) that combine several topics.