React Native Expo Project Setup and Build Guide

Step 1: Launching the Project via Expo Go

1. Install Required Tools

Ensure you have the following installed:

• Node.js 18.20.5+ (preferably LTS)
• Expo CLI:

  npm install -g expo-cli

• Expo Go on your mobile device (available on Google Play and App Store).

2. Install Dependencies

In the project directory, run:

npm install

3. Start the Expo Server

npx expo start

Expo CLI will generate a QR code.

4. Scan the QR Code

Before scanning the QR code, ensure the Expo Go app is running on your mobile device. The terminal will display a message indicating "Using Expo Go".

• Use the Expo Go app on your phone to scan the QR code from the terminal or browser.
• The application should launch on your mobile device.

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Step 2: Building the APK via EAS

1. Install EAS CLI

If you do not have EAS CLI installed:

npm install -g eas-cli

2. Log in to Expo

eas login

Enter your Expo account credentials.

3. Initialize EAS

In the project directory:

eas build:configure

Select the platforms you wish to configure for the build.

4. Build the APK

For a development build:

eas build --profile development --platform android

5. Download the APK

Upon completion, EAS will provide a link to download the APK file.

6. Test the APK

Install the APK on your phone by copying the file and launching it on your Android device. Ensure Allow installation of apps from unknown sources is enabled.

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That's it — your React Native Expo project should now be ready for launch and distribution! 🎉