I am not exactly sure how to create a Plugin for card.io in order to integrate it within Unity. Every hint would be very much appreciated!
You can get the source code here and I think you should change some code by yourself.
Change the source code for unity callback use UnitySendMessage if nessasery.
(Maybe after scan a card you need get the result or something?)
And then build it in Jar file or aar file
http://addcomponent.com/android-native-plugin-unity/
When you get the aar file you should create a script to call the native method.
@EllisonLee I am trying to use card.io android sdk in one of our AR project to read a a card number when a card is placed under the AR screen but I am not sure how to use the SDK. If you can let me know some basic steps as to how I can test the SDK read functionality using my laptop camera, it would be of great help.
Thanks in Advance.