creating QR with zxing in iphone

https://github.com/joelind/zxing-iphone/tree/master/zxing.appspot.com

ZXing Encoding Method

Calling Encoder with Intent: http://code.google.com/p/zxing/issues/detail?id=1032

When you want to use libraries: http://www.vineetmanohar.com/2010/09/java-barcode-api/

interesting facts for QR

http://blogs.imediaconnection.com/blog/2011/08/01/qr-code-density-and-url-shorteners/ (why we need URL shorteners)

QR Generating Journey

Similar one (research from Stanford)

http://prpl.stanford.edu/papers/soups10j.pdf

Step By Step: http://www.thonky.com/qr-code-tutorial/introduction/#general-overview-of-creating-a-qr-code

To make QR, we have to know :

1) The choice of characters eg. UTF8 or ISO-8859-1

2) Byte array to UTF8(but now we have to use ISO-8859-1)because UTF 8 has some non-decodable characters by ZXing library (because we are using ZXing for this app)   WHY WE CHOOOSE ZXING?

http://code.google.com/p/zxing/issues/detail?id=103

3) Storage is small so, we need URL shortening technique.

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QR code future is

Next QR Code Generations

1) Microsoft Tag (write details about it like detecting the areas that which QR code is scanned most, etc)

2) Dynamic QR Code (where information changes from time to time by scanning it)

3) Designer QR Codes

http://mobile.kaywa.com/files/kaywa_guide_QR_codes_without_prices.pdf

Generating QR code - Tutorials

1) For Android (reading QR code and sharing it in social network like facebook and twitter): http://stackoverflow.com/questions/6493623/tutorial-to-learn-how-to-read-and-generate-a-qrcode

2) For iOS : https://github.com/kuapay/iOS-QR-Code-Generator

3) Structure Guide: http://qrdroid.com/services/android-developers

4) QR Android Code Sample (using bitmap): http://www.qrme.co.uk/qr-code-news/3-newsflash/138-qr-code-android-code.html

all about QR codes

1) How a QR code installed data?
http://www.swetake.com/qr/qr3_en.html

2) ISO/IEC 18004/2000 QR code (all about standards in a QR code)
http://raidenii.net/files/datasheets/misc/qr_code.pdf

3) Fancy about Dynamic QR code? 1 QR code with changeable info : http://wayne-doucette.blogspot.co.uk/2011/01/dynamic-qr-code-generator-jquery-google.html

4) some professionals doing dynamic QR :http://trakqr.com/

5) animated QRs:http://blog.qr4.nl/Animated-QR-Samples.aspx
Also we have designed QR codes too (eg a QR code in Japan from LV)

QR code Generator

This is how you can make a QR code .For my case, when you can scan the QR code and you will reach to the PayPal link with the total sum of the product in it)

Firstly by using ZXing you can create by using their ZXing web link : http://zxing.appspot.com/generator
or
you can write by using QRcodeWrite class:http://zxing.org/w/docs/javadoc/com/google/zxing/qrcode/QRCodeWriter.html
http://code.google.com/p/zxing/source/browse/trunk/core/src/com/google/zxing/qrcode/QRCodeWriter.java?r=1028

But first one is very limited.

1)Step by Step: notice the ZXing package: http://stackoverflow.com/questions/6376400/zxing-android-generate-1d-barcode
Then details inside : http://stackoverflow.com/questions/2489048/qr-code-encoding-and-decoding-using-zxing

2) image processing in ZXing library : http://code.google.com/p/zxing/source/browse/trunk/androidtest/src/com/google/zxing/client/androidtest/ZXingTestActivity.java

3) QR code writer in ZXing

http://cfsearching.blogspot.co.uk/2010/04/coldfusion-zxing-read-write-qrcode.html This is the CFC extention (not related with project)

4) Java android encoder (without using ZXing)

http://www.keepdynamic.com/barcode-for-android/

Encoding and Decoding through a web service:

http://groups.google.com/group/zxing/browse_thread/thread/ae31211ea7d70539/283b2878870ec66c?lnk=gst&q=endcoding+the+barcodes#283b2878870ec66c

BitMat (bit matrix) documentation

http://www.cs.rpi.edu/~atrem/papers/iswc_medha.pdf