Upon developing android design tool for Animal Crossing, New Leaf (3DS game), I needed to read / write structured append QR code (4 sets of QR code consisting one data). I made a little modification to Zxing code, and will explain how I did it. I’m not going to explain detail on how to use Zxing library; refer to other site for basic usage. You need to prepare Ant for building Zxing source code, but if you only need to read structured array QR, you don’t need to rebuild source code (can be done using default library). If you want to create structrued array QR code, you will need to …