Chapter 7: React Native Tutorial – StickerSmash with Expo

In this chapter, you will build a fun React Native application called StickerSmash using Expo.

StickerSmash is a cross-platform application that runs on:

• Android
• iOS
• Web

using a single codebase.

This tutorial helps you understand how real-world Expo applications are built using:

• Expo Router
• Bottom tabs navigation
• Flexbox layouts
• Image Picker
• Modal
• FlatList
• Gestures
• Screenshot capture
• Platform-specific handling

🎯 What You Will Learn

By the end of this tutorial, you will:

• Create an Expo app using TypeScript
• Use Expo Router navigation
• Build layouts using Flexbox
• Select images from device gallery
• Create sticker selection modal
• Use FlatList for rendering stickers
• Add touch interactions
• Capture screenshots
• Save images to device storage
• Configure app icon and splash screen

🚀 StickerSmash Tutorial

The complete official Expo tutorial is available here:

📘 Official Tutorial Link

Expo StickerSmash Tutorial

📚 Topics Covered in the Tutorial

The tutorial is divided into multiple chapters and covers:

1. Creating Expo app with TypeScript
2. Expo Router basics
3. Bottom tabs navigation
4. Flexbox layouts
5. Image Picker API
6. Modal and FlatList
7. Gesture handling
8. Screenshot capture
9. Platform differences
10. Splash screen and app icon configuration

📦 Main Libraries Used

🧪 Final Application Features

The completed StickerSmash app supports:

• Image selection
• Sticker overlays
• Gesture interaction
• Screenshot capture
• Saving edited images
• Cross-platform execution

✅ Why This Tutorial is Important

StickerSmash introduces several important Expo and React Native concepts in a practical and beginner-friendly way.

It provides hands-on experience with:

• Real mobile UI development
• Native device APIs
• Cross-platform design
• Component-based architecture
• Modern Expo workflows