Since iOS 7, you can use a Core Image filter to generate QR images. See the final tip here: – (CIImage *)createQRForString:(NSString *)qrString { NSData *stringData = [qrString dataUsingEncoding: NSISOLatin1StringEncoding]; CIFilter *qrFilter = [CIFilter filterWithName:@”CIQRCodeGenerator”]; [qrFilter setValue:stringData forKey:@”inputMessage”]; return qrFilter.outputImage; }
I have a colleague who worked on ZXing (“Zebra Crossing”). That’s got a fair variety of platform support.
There is only one pure PHP QR code decoder. It’s working with GD library, but can use also ImageMagick. This PHP QR code reader is ported from ZXing. https://github.com/khanamiryan/php-qrcode-detector-decoder
A QR code is just a link / URL, soo point to a URL on your site and use PHP to determines if the user is using Android or iPhone. Then do a PHP header location to the iPhone app URL if it is iPhone, or Android app if it is Android. Here is the … Read more
ZBarSDK is another option. A very capable library. UPDATE January 2014 Beginning in iOS7, AVCaptureDevice now includes the ability to read barcodes (of all kinds) and return a human readable value. If you’re targeting iOS7+, this is the way to go. ZBarSDK is still great for pre-iOS7 support, of course.
Check out https://github.com/serratus/quaggaJS “QuaggaJS is a barcode-scanner entirely written in JavaScript supporting real- time localization and decoding of various types of barcodes such as EAN, CODE 128, CODE 39, EAN 8, UPC-A, UPC-C, I2of5, 2of5, CODE 93 and CODABAR. The library is also capable of using getUserMedia to get direct access to the user’s camera … Read more
I’ve found the answer for my question here http://sourceforge.net/news/?group_id=189236 it’s much faster than zxing and much easier to implement. Thank you. For iOS: for iOS (zbar.sourceforge.net/iphone) and the documentation (zbar.sourceforge.net/iphone/sdkdoc/install.html)
The responses recommending usage of Google Charts are absolutely terrible from information security point of view. That’s essentially sharing the TOTP secret as well as your username (alice@google.com) and issuer (Example) with a third-party company with no legal obligation to keep them secret, and doing that over a GET request! Doing so you violate not … Read more
Take a look at this one http://qrcodenet.codeplex.com/
It works like this : 1- You open the following URL on your browser : https://web.whatsapp.com/ 2- The Browser loads the page with all sorts of JS and CSS stuff , but also opens a WebSocket ( wss://w4.web.whatsapp.com/ws ) – Check this image : 2.1- Every 20000 milliseconds you see traffic on the WebSocket for … Read more