gradle
ZXing Core:
// https://mvnrepository.com/artifact/com.google.zxing/core
compile group: 'com.google.zxing', name: 'core', version: '3.3.1'
ZXing Java SE Extensions:
// https://mvnrepository.com/artifact/com.google.zxing/javase
compile group: 'com.google.zxing', name: 'javase', version: '3.3.1'
