build.gradle

apply plugin: 'com.android.library'

android {
    compileSdkVersion = 29
    buildToolsVersion = "29.0.2"

    defaultConfig {
        minSdkVersion 16
        targetSdkVersion 29
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner 'androidx.test.runner.AndroidJUnitRunner'

    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    api 'com.google.zxing:core:3.3.0'
    api fileTree(dir: 'libs', include: ['*.jar'])
    androidTestImplementation('androidx.test.espresso:espresso-core:3.1.0', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    api 'androidx.appcompat:appcompat:1.0.0'
    api "com.facebook.react:react-native:+"

    testImplementation 'junit:junit:4.12'
}