How to implement delay in camera preview while scanning QR code?

[AC Question]

I am using zxing library for QR code scanning.In which there are two main classes for scanning.1- CameraManager 2- CaptureActivtiy.I want that after first scanning camera preview screen gone for 3 sec and rescan after 3 secs.Like this scanning will be held in every 3 seconds.
Please answer as soon as possible.I need it badly.

 

[Golfdriver97]

Welcome to the forums. I found this: barcode - Integrating the ZXing library directly into my Android application - Stack Overflow

Not sure if that is what you are looking for?