QR code is an ISO-standardized two-dimensional barcode format.
Here is a sample QR-Code, pointing to Tag wiki qr-code
A Qr-code decoder has many specific patterns to recognize how to read the QR-code
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Questions tagged [qr-code]
4148 questions
29
votes
1 answer
Share WiFi-Settings as QR-Code for WPA2 Enterprise
I have found several sources describing a String Format used to describe WiFi-Access Settings in the form of:
WIFI:T:WPA;S:mynetwork;P:mypass;;
(example taken from zxing documentation)
For basic WPA-Connections, this works just fine on my Android…
Lukx
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26
votes
7 answers
Integrate ZXing QR code scanner without installing BarCode Scanner
I am trying to Integrate ZXing QR Code into my android app without installing BarCode Scanner app, I have followed the steps as:
1) Firstly I have downloaded ZXing.zip file and extract it
2)open the ZXing project as an android existing project and…
Kanika
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26
votes
5 answers
Is there a way to scan barcodes in Flutter?
Basically, I'm making an app that scans a QR code to connect to a server. Then, the app will scan the barcode of products and take pictures of the item and send them to the server. My question is the following :
Is there a Flutter plugin to scan QR…
Nato Boram
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26
votes
3 answers
Why Don't Duplicate QR Codes Look The Same?
My understanding in that a QR Code contains the data that is being read, and it does not require an internet connection to interpret the code. If this is the case, why do I get a different QR Codes every time I recreate a new QR with the same…
Chris
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26
votes
5 answers
QR Code Scanning in ios application
I need to integrate QR-code reader in app and found a tutorial for it.
I downloaded Z-bar sdk from this link.
Here is what I had done.
In the QRscannerViewController.m
-(IBAction)StartScan:(id) sender
{
ZBarReaderViewController *reader =…
Nazik
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25
votes
7 answers
How to read QR code from static image
I know that you can use AVFoundation to scan a QR code using the device's camera. Now here comes the problem, how can I do this from an static UIImage object?
Tom Shen
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25
votes
7 answers
How to create QR code image with company logo
We are using a lot of QR code around our office. I would like to know if we can generate QR code with a small company logo in the middle. I have seen few examples online.
But I want it to generate it automatically instead of user manually editing…
Melanie W
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24
votes
3 answers
QR decoder that works on mac?
Anyone know a QR decoder that works on mac or that might be online? I just need to decode one single image.
fmsf
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24
votes
3 answers
Android start application from QR Code with params
I want to know if it's possible in android to start application using QR Code reader. The things that I want to achieve is :
I create QR Code and after scanning it with QR Code reader I need to start my application with some params, maybe it will…
Android-Droid
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23
votes
3 answers
sample code to detect QRCode in an image
I use this code in C# to decode (not detect) a QRCode and it works:
LuminanceSource ls = new RGBLuminanceSource(image, image.Width, image.Height);
Result result = new QRCodeReader().decode(new BinaryBitmap(new HybridBinarizer(ls)));
Now I would…
robob
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22
votes
3 answers
QR codes image generator in java (open source but no GPL)
I'm seeking an open source QR codes image generator component in java (J2SE), but the open source licence mustn't be a GPL licence (needs to be included in a close source project).
BTW, i can't access the web from the project so no Google API.
oneeyejack
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21
votes
8 answers
How to scan QRCode in android
I found a tutorial on how to scan a barcode. But in my application I have to scan a QR code. How can I a scan QR code in Android?
Sunil Kumar Sahoo
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21
votes
2 answers
How can I generate a circular qr-code like a messenger or a kik code?
How can you generate the codes like shown below:
kewlking
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21
votes
5 answers
JavaScript QR Code Reader - can it be done? Or, Remote Service?
I'm doing a bit of preliminary research on an upcoming project and I have a quick question that I figure I'll throw up here while I look elsewhere, in case anyone has any experience with this.
The question is simple: is it possible to read a QR code…
Myk
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20
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7 answers
Storing binary data in QR codes
I'm trying to store binary data in a QR code. Apparently QR codes do support storing raw binary data (or ISO-8859-1 / Latin1). Here is what I want to encode (hex):
d1 50 01 00 00 00 f6 5f 05 2d 8f 0b 40 e2 01
I've tried the following…
Timmmm
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