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QR Code reader on Mobile Device...

Contributor ,
Jun 11, 2012 Jun 11, 2012

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I'm desperate here -- I have no idea why I can't get this to work, but I really need some help...

I've tried writing a custom QR-Code reader app for iOS and Android, and I can't get any app any where to recognize a QR-Code...

It *seems* to run OK, but it just never decodes any data -- always comes back with "nothing decoded" if it comes back at all...

I've tried the  ZXing library available on Google, and I've tried the one at LibSpark.org.  Neither of them will ever detect a QR-Code, and the ZXing library runs so incredibly slowly that it's useless anyway -- 7 to 10 seconds to process one image and tell me there's no QR-Code in there, when I know full well there is?  Ridiculous!

So, has anyone out there actually gotten a QR-Code reader app to work successfully?  One where you DON'T have to "click" a button to take a picture, but where it will simply scan the video input and will auto-detect when a QR-Code is in the video frame?

If so, I'd REALLY like to ask you how you did it, and even see some source-code if at all possible...

Thanks a bunch!

Laurence MacNeill

Mableton, Georgia, USA

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New Here ,
Feb 16, 2013 Feb 16, 2013

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just did an got error - cannot be parsed

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New Here ,
Feb 16, 2013 Feb 16, 2013

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found the tag Android

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New Here ,
Feb 16, 2013 Feb 16, 2013

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Under Android tag we have the tag

Manifest additions

uses permission Android Name = Android permission internet

uses permission  Android name = Android permission Camera

Do I add the Ui.Camera Activity line after this point ?

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Explorer ,
Feb 16, 2013 Feb 16, 2013

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Yes,

after uses permission and before closing the manifest tag. add everything from start of application tag to end of application tag.

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New Here ,
Feb 16, 2013 Feb 16, 2013

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OK GOT IT !!!!

WOW !!!!!!!!!!!!!!!!!!!

Works like a CHARM.

A MILLION thanks. Have you ANY idea how long I have tried to get this RIGHT - not just your code BUT a QR code reader in AS3.

Thanks

Paul

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New Here ,
Feb 16, 2013 Feb 16, 2013

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WOW !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Reads QR Codes AND Barcodes on my Galsy S2

You are a REAL STAR Mate !!!

Paul

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Explorer ,
Feb 16, 2013 Feb 16, 2013

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If you find any bug or issue. Please create an issue on google project.

best of luck!! cheers!!

Regards,

sbhave

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Community Beginner ,
Feb 21, 2013 Feb 21, 2013

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Hi sbhave, I tried using the native extension in a Flash Builder 4.6 project for Android (with AIR 3.5 SDK), based on your usage sample, but launching the scanning UI always fails.  I added the user permissions and camera activity to the Android manifest additions. Is there something else I'm missing? Maybe it could be the hardware, how could I verify this?

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Explorer ,
Feb 16, 2013 Feb 16, 2013

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Hi

Open your Applications app-xml file.

In that find a tag called android

Go to the bottom of this page http://code.google.com/p/adobe-air-qr-barcode-zbar-ane/wiki/SampleUsage copy paste the code at appropriate place.

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Explorer ,
Feb 16, 2013 Feb 16, 2013

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Have you added the activity in Android manifest Additions?

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New Here ,
Jun 03, 2013 Jun 03, 2013

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Hi Sbhave,

Could the Actionscript part of your project work for a PC based AIR app?

I've written a touchscreen AIR app that needs barcode integration, and wondered if I could use your project, or parts of it for a PC only implementation or whether it was solely dependent on your ANE for Android environment.

Mike

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New Here ,
Jul 16, 2013 Jul 16, 2013

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Hi SBhave

Paul here. I posted about your INCREDIBLE Qr code reader in AS3 before. It works like a charm and LIGHTNING fast.

Would you know where to get a class or whatever which will make it take the read output from a QR Vcard and add the address details to a mobile phones contact list ? Thanks.

Paul

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Contributor ,
Jul 16, 2013 Jul 16, 2013

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Hi SBhave,

Just wanted to add my thanks - yet another developer who loves your native extension.

It simply works great.  

Douglas

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New Here ,
Jul 23, 2013 Jul 23, 2013

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Friends, please I need example project

any

Thank you

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Explorer ,
Jul 23, 2013 Jul 23, 2013

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If you are familiar with intelliJ, i have migrated the repo to intelliJ on github,

https://github.com/saumitrabhave/qr-zbar-ane

It includes example as well

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New Here ,
Jul 23, 2013 Jul 23, 2013

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I am not familiar with intellij but will take a look.

Thanks

Paul

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Guest
Aug 16, 2013 Aug 16, 2013

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Hi sbhave,

I try to use your qr-zbar-ane and it works fine, but the camera captures as set on an angle of 90 degrees, can I rotate it?

i hope you can answer asap cause i really would like to be able to use the camera

thanks a lot

fabris

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New Here ,
Aug 16, 2013 Aug 16, 2013

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Hi fabris.

If all you want to do is read qr codes the image orientation doesnt really make a difference as the reader code can see if the image is rotated and will correct for this in the read.

I dont know if it will effect the read capability of this code but a year or two back I was coding a camera on Android and had the problem of the image being rotated. I solved it by defining a movieclip which i called holder_mc. I placed holder_mc onstage and added the camera to it using holder_mc.addchild(myCamera) or whatever. Then I rotated the holder by holder_mc.rotation(90) or whatever. Sorry I am doing this off the top of my head so the syntax may not be exact but I hope you get the idea. I was even able to enlarge the camera view by simply enlarging holder_mc through

holder_mc.scaleX = 2;

holder_mc.scaleY = 2;

and so on.

Hope this helps.

Paul

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Guest
Aug 16, 2013 Aug 16, 2013

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Hi Paul,

thanks for your prompt reply, but I'm using this code

  sc = new Scanner() 

                                        sc.setTargetArea(350,"0xFF0000FF","0xFFABCDEF");

                                        sc.setConfig(Symbology.EAN13,Config.ENABLE,1);

  sc.addEventListener(ScannerEvent.SCAN,onScan);

                                        sc.launch(true);

(is the sample code used in reader.as) and when start the camera, the capture appears rotated. I don't know which is the object that I must rotate in the code

thanks a lot for your help

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Explorer ,
Aug 16, 2013 Aug 16, 2013

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Hi fabris

Can please log an issue at github repo, providing exact issue repro steps, screenshots, platforms etc.

I will surely fix the valid issues logged.

Sent from my iPad

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New Here ,
Aug 19, 2013 Aug 19, 2013

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Hi sbhave, nice to meet you!

Thanks for the ane to reading qr codes

I've trying the example you published but I've an error. Could you give me any clue about solve it?

ArgumentError: Error #3500: The extension context does not have a method with the name targetArea.

          at flash.external::ExtensionContext/_call()

          at flash.external::ExtensionContext/call()

          at com.sbhave.nativeExtensions.zbar::Scanner/setTargetArea()[/Users/saumib/projects/repos/final/qr-zbar-ane/ASLib/src/com/sbhave/nativeExtensions/zbar/Scanner.as:116]

          at reader/onStart()[/Users/gabriel/Development/qr-zbar-ane-master/Example/src/reader.as:68]

Many thanks!

Gabriel

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New Here ,
Nov 03, 2013 Nov 03, 2013

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Hi gturielle,

I've got the same message as yours when I try to test the app locally on my computer.

If you publish an apk file and try the app on your mobile device, it should run smoothly

Thomas

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New Here ,
Nov 03, 2013 Nov 03, 2013

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Hi sbhave,

very nice job, it works very fine on my nexus 4!!

I've got a question, I'm trying to find where the symbol library is... Is it possible to modify it? Because for my project, I'd like to scan medecines and the barcode system is specific so it doesn't work at the moment.

Thanks!

Thomas

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Community Beginner ,
Nov 11, 2013 Nov 11, 2013

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Can I modify the scanning UI?or can I custom the scanning UI?

Thanks.

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New Here ,
Dec 04, 2014 Dec 04, 2014

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Hello. I have to do a barcode scaner app, so i tried to use this, but i can't get it to work.

I mostly get "Error #1014: Class com.sbhave.nativeExtensions.zbar::Scanner could not be found." at this point.

Edit : nvm, just had to include the ANE into the packages.

thanks anyway, some good pointers on this thread.

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