React Native Android Setup

This guide will help you set up and run a React Native for Android development.

Prerequisites

Ensure you have the following installed:

1. Node.js (Recommended: v18+)
2. React Native CLI

   npm install -g react-native-cli

3. Java Development Kit (JDK) (Recommended: OpenJDK 17)
4. Android SDK & Build Tools

Configure Environment Variables

• Add the following paths to your system’s environment variables:

  ANDROID_HOME=$HOME/Library/Android/sdk
  PATH=$PATH:$ANDROID_HOME/emulator
  PATH=$PATH:$ANDROID_HOME/platform-tools

• For Windows:
  • Add C:\Users\YourUser\AppData\Local\Android\Sdk to the system variables.

---

Run the Android Build

Start Metro Bundler

npx react-native start

Build and Run the App

npx react-native run-android

If the build fails, try cleaning and rebuilding:

cd android && ./gradlew clean && cd ..
npx react-native run-android

Gradle Build Failed

• Run:

cd android && ./gradlew clean && cd ..

• Ensure gradle.properties has:

android.useAndroidX=true
android.enableJetifier=true

• Run:

   cd android
  ./gradlew assembleDebug