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Questions tagged [zbar-sdk]

for questions specific to iPhone. ZBar is an open source (GNU LGPL 2.1) software suite for reading bar codes from various sources, such as video streams, image files and raw intensity sensors. It supports many popular symbologies (types of bar codes) including EAN-13/UPC-A, UPC-E, EAN-8, Code 128, Code 39, Interleaved 2 of 5 and QR Code.

ZBar is an open source software suite for reading bar codes from various sources, such as video streams, image files and raw intensity sensors. It supports many popular symbologies (types of bar codes) including EAN-13/UPC-A, UPC-E, EAN-8, Code 128, Code 39, Interleaved 2 of 5 and QR Code. ZBar supports several platforms: Windows, Linux, iPhone.

ZBar is used widely in iOS applications and has an SDK specifically for iphone devices.

ZBar SDK supports the iPhone 3GS and iPhone 4, as they have a camera with auto-focus. The ZBar library does not support the iPhone 3G. At the same time ZBar supports iPad 2 camera, in spite of absense of auto-focus camera.

ZBar is licensed under the GNU LGPL 2.1 to enable development of both open source and commercial projects.

Use this tag for ZBar SDK for iPhone issues. For other platforms there is tag.

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Cancel button action in zbar shows blank view

I am using tab bar in my iOS app. When I tap on the scan tab, i invoked the delegate method to start the camera immediately on scan tab. When I start the camera to scan the QR Code and tap on cancel button before scanning, I get the blank view. How…
Deepak Thakur
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How to remove the green rectangle while scanning QR codes using the ZBar SDK?

- (IBAction)scanProduct:(id)sender { // for scanning product ZBarReaderViewController *reader = [[ZBarReaderViewController alloc] init]; reader.readerDelegate = self; reader.supportedOrientationsMask = ZBarOrientationMaskAll; …
Aklesh Rathaur
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Zbar not scanning after use of camera

I have an app that start with scanning a qr code. After scanning if I use the camera to take picture and then go back to the scanning view the scanning does not work. I dont know the reason, issue is only in IOS7 devices, both iPad and iPhone. I…
oopsi
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iOS ZBAR instantiateViewControllerWithIdentifier after reader didFinishPickingMediaWithInfo

Im running a function under didFinishPickingMediaWithInfo but how can i render another viewController after the function finish - (void) imagePickerController: (UIImagePickerController*) reader didFinishPickingMediaWithInfo: (NSDictionary*) info { …
jtomasrl
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QR code reader with ZBar library get's error ActivityNotFound

QR code reader with ZBar library get's error on Intent ActivityNotFound and crash. I changed to Intent.ACTION_WEB_SEARCH but no results. The error is not displayed on all the qr codes this why I can't understand what's wrong. public class…
user2956605
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Linker command failed Error

i have used Z bar SDK in my app ,when i am trying to archive the file it's showing as ld: file is universal (3 slices) but does not contain a(n) armv7s slice: /Users/vinodbillakoorti/Desktop/Gift Swap/ProjectSample/ZBarSDK/libzbar.a file…
gowtham kosaraju
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Zbar Qr Code Reader - crash after qr code reader

I'm trying to do a Qr code reader with Zbar but the app crash after the Qr Code detect (when result != 0) I'm not getting error message, only a warning: CHECK surface infomation creating=false formatChanged=false sizeChanged=false visible=false…
Ladessa
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Get name from UPC number in barcode scanner

I want to implement barcode scanner in my iOS app, i followed this tutorial and integrated into my app http://zbar.sourceforge.net/iphone/sdkdoc/tutorial.html My app scans barcode properly, after scanning i gets one UPC number e.g.: 843163043544…
Krunal
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Can not archive the app associated with Zbar sdk in Xcode 5

I have developed an application where i used the zbar sdk. It was working well in xcode 4.5, but recently i have updated to xcode 5. Now when i want to archive my app for app store, it shows the following error. ld: file is universal (3 slices) but…
Leo
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unrecognized selector sent to class 0x865c6c

While am trying to integrate Zbar sdk to am getting this error. "+[QRCodeReadViewController presentViewController:animated:]: unrecognized selector sent to class 0x865c74"; Thanks in advance My code is +(void)startfn{ …
user2833481
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How to set camera flash light level in zbar sdk

I am using zbar sdk in my ios app. I want to dim the camera flash light. In ios documentation I have found AVCaptureDevice - (BOOL)setTorchModeOnWithLevel:(float)torchLevel error:(NSError **)outError In AVCaptureDevice class setTorchModeOnWithLevel…
Talha
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ZBar camera overlay always leaves space for controls even if they're not displayed

I have a QR/bar code reader app that uses the ZBar SDK. I want to implement a custom overlay and remove everything else so the camera view covers the entire screen. The overlay is not difficult to implement. When I remove the ZBar controls via…
PaperThick
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Android ZBar SDK Get Scanned Image

I am using ZBar SDK for Android. It is decoding and returning me QRCode. But it is not returning captured image. I want to show captured QR Image from Camera to my screen. Thanks in Advance..
valentinaMeyashi
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Zbar code ios SDK customisation

I am developing a barcode reader iphone application using zbar SDK.Its working fine for me.While scanning an QRcode it is detecting very fast and decoding it.The problem is , I need to add some for features for scanning functionality.This is my…
AloSwift
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ZBar : custom button in Camera overlay view is not working

I'm using the ZBar SDK to read QR codes on iPhone, however I added a button in that view. But the button is not working! Even i tap the button it doesn't go to the action method of that button. Where is the problem actually? Thanks in advance for…
Leo
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