Android Build Process

// android/app/build.gradle
android {
    compileSdkVersion 33
    buildToolsVersion "33.0.0"

    defaultConfig {
        applicationId "com.yourapp.reactnative"
        minSdkVersion 21
        targetSdkVersion 33
        versionCode 1
        versionName "1.0.0"
        multiDexEnabled true
    }

    signingConfigs {
        debug {
            storeFile file('debug.keystore')
            storePassword 'android'
            keyAlias 'androiddebugkey'
            keyPassword 'android'
        }
        release {
            if (project.hasProperty('MYAPP_UPLOAD_STORE_FILE')) {
                storeFile file(MYAPP_UPLOAD_STORE_FILE)
                storePassword MYAPP_UPLOAD_STORE_PASSWORD
                keyAlias MYAPP_UPLOAD_KEY_ALIAS
                keyPassword MYAPP_UPLOAD_KEY_PASSWORD
            }
        }
    }

    buildTypes {
        debug {
            signingConfig signingConfigs.debug
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
        release {
            signingConfig signingConfigs.release
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
            shrinkResources true
        }
    }

    bundle {
        language {
            enableSplit = true
        }
        density {
            enableSplit = true
        }
        abi {
            enableSplit = true
        }
    }
}

// gradle.properties
MYAPP_UPLOAD_STORE_FILE=my-upload-key.keystore
MYAPP_UPLOAD_KEY_ALIAS=my-key-alias
MYAPP_UPLOAD_STORE_PASSWORD=*****
MYAPP_UPLOAD_KEY_PASSWORD=*****

# Build commands
# Debug APK: ./gradlew assembleDebug
# Release APK: ./gradlew assembleRelease
# Release AAB: ./gradlew bundleRelease