build.gradle

apply plugin: 'com.android.library'

def safeExtGet(prop, fallback) {
    rootProject.ext.has(prop) ? rootProject.ext.get(prop) : fallback
}

android {
    compileSdkVersion safeExtGet("compileSdkVersion", 28)

    defaultConfig {
        minSdkVersion safeExtGet('minSdkVersion', 16)
        targetSdkVersion safeExtGet('targetSdkVersion', 28)
        versionCode 1
        versionName "1.0"
    }

    // Include "lib/" as sources, unfortunetely react-native link can't handle
    // setting up alternative gradle modules. We still have "lib" defined as a
    // standalone gradle module just to be used in AndroidNativeExample
    sourceSets {
        main.java.srcDirs += 'lib/src/main/java'
    }
}

dependencies {
    //noinspection GradleDynamicVersion
    implementation 'com.facebook.react:react-native:+'
}