react-native-apk-installer/android/build.gradle

import groovy.json.JsonSlurper

def computeVersionName() {
    // dynamically retrieve version from package.json
    def slurper = new JsonSlurper()
    def json = slurper.parse(file('../package.json'), "utf-8")
    return json.version
}

buildscript {
    repositories {
        jcenter()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:1.5.0'
    }
}

apply plugin: 'com.android.library'

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.1"

    defaultConfig {
        minSdkVersion 16
        targetSdkVersion 22
        versionCode 1
        // get version name from package.json version
        versionName computeVersionName()
    }
    lintOptions {
        abortOnError false
    }
}

repositories {
    mavenCentral()
}

dependencies {
    compile 'com.facebook.react:react-native:+'
}