I have an app that receives qr code from the server. I want to decode it (not with intent and camera) and display the text it contains in my app. I have alredy done this in
Download ZXing from google code, and this class file: ZXing-1.6/zxing-1.6/androidtest/src/com/google/zxing/client/androidtest/RGBLuminanceSource.java can help you.