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Can I make my phone camera natively read QR code and take necessary action without opening the specific application to read it? I don't want to open the application to read these QR codes.

I am developing an android application which requires the following functionality. Please let me know how I can do it.

Thanks,

Deepak Kumar
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Ashish Kumar
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3 Answers3

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This is the open source project to build QRCode reader with android camera https://github.com/zxing/zxing

arjun
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  • Thanks for your answer, but I think using this method still I will have to open particular app to scan the QR code. I want my camera to automatically identify the QR code and take necessary action. – Ashish Kumar Feb 02 '17 at 10:11
  • No. Just integrate the source code from this project into you android app project – arjun Feb 02 '17 at 10:12
  • And this library, may be out of date, check the google vision API – A P Feb 02 '17 at 10:35
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What about native Mobile Vision API? And here's a tut for barcodes by Google.

Sid
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Spinning on @Sid's answer, the Mobile Vision API is my preferred way to go. It contain Google's own barcode detector classes and I use it in production apps with great result.

If you like a simpler interface that just opens the camera and returns the QR-code (or barcode) upon detection, this tutorial will probably be most useful. It contains all the stipped down classes you need as well.

Algar
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