I have been trying to generate a QR code using Zxing. Following the minimal instructions available on the Zxing project site, I was not able to get this integrated into my application. I have tried following this answer here (as well as many other search results), but BufferedImage does not seem to be available in the Android SDK. In short, Zxing is not playing nice with my application, or the documentation is not fully explaining the process properly.
I am looking for a simple way to pass in a string and generate a QR code image representing the string. Ant code samples, or even a nudge in the right direction would greatly appreciated.
I created an application at one point that needed to be able to generate a QR also.
I, like you started with trying to use ZXing to do it. The project is definitely capable of generating the QR image, but I was never able to get it working correctly.
The only integration they offer for QR generating is thru intents, and it just spits your QR into its own blank Activity.
I tried pulling out enough of the project that I'd be able to use the generator classes, but I could never get it working properly.
In the end I decided to go with the google charts api. Since it requires network it wasn't an ideal solution for me, but it was far easier / less complicated, and I was able to actually get it to work.
Edit:
Since the time of this post I have created a sample project that demonstrates how to download and show QR codes using the Google Image Charts API. The sample project can be located here: https://github.com/FoamyGuy/QRMaker. I hope it can help someone.
I've been through the frustration of trying to integrate the ZXing library into my code and get rid of the need of having to install the third-party application. I finally got it to work.
You need to add the core.jar file from the latest ZXing release source to your project. You also need to add two more classes to your package to get it to work.
Just follow this step-by-step guide.
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i am at beginner level in android. i want to develop an app which scan QR code using camera and shows the result of QR code. There are many solution there but every time i try code the error appear or exception is there. i want complete step by step process in android studio or tutorial link
I highly recommend you to check Udacity, they have awesome free courses for beginners and intermediate developers. Also they have Android Developer Nanodegree and one of it's projects is to create a Barcode scanner app, which is very similar to scanning QR code.
Also you could try using library like this to implement QR-scanner functionality, but using library won't improve your knowledge.
You can use the ZXing library for reading the bar-codes and parsing the contents. Here's a good tutorial.
http://code.tutsplus.com/tutorials/android-sdk-create-a-barcode-reader--mobile-17162
I am looking at making use of QR codes in an application of mine.
I did some research / Googling and I found that this library is apparently a good option to use:
http://sourceforge.net/p/zbar/news/
But I read there it says that is still needs an application that can read qr codes for it to work?
Is there not a library that just makes use of the camera and then decodes the qr code in the application that is using the library?
If you need to scan QR codes in your application, this is the way to go :https://code.google.com/p/zxing/
You can also integrate the necessary libraries in your project in order to avoid to launch a scan using the Intent way (so a third-party app installed on your device would be necessary).
If you Google it, you'll find a lot of guides to do that: the first I got is http://www.androidaz.com/development/zxing-qr-reader-direct-integration but there's a plenty of tutorials out there.
ZBar can be installed as a library in the project, and used as any other activity.
You can Check:
https://github.com/DushyanthMaguluru/ZBarScanner/blob/master/examples/ZBarScannerDemo/src/com/dm/zbar/android/examples/MainActivity.java
That's the example of how to use ZBAR to read a QR, in the onActivityResult you can handle the results (in this case the example makes a toast).
You can follow the installation explanation here:
https://github.com/ZBar/ZBar/tree/master/android
I'm beginner in android and I need to create own QR code scanner app.
After searching for some library, of course I found zxing library (http://code.google.com/p/zxing/), but if I understand right, there must be installed BarcodeScanner application to use it and this library call this app. This variant is bad for me, because I need only my own app.
But if I'm not right, how to use this library without installing BarcodeScanner?
Also I found this: http://www.blackdogfoundry.com/blog/zbar-bar-code-qr-code-reader-android/, and I'm not sure that it will work fine with all devices.
Did anyone do some qr readers, what did you use? Do you know some other good libraries for this, except of zxing?
ZXing is good and useful library. I think you are mixing up library itself and application
which is also produced by the project
I wouldnt be so quick to dismiss Barcode Scanner.
I recently used it in an App that needed to read barcodes. It works seamlessly with my App. The only downside is that it needs to be installed by the user, but to be honest weighting that up against the time and money it would take to develop a Barcode reader from scratch, its a no brainer. If the user does not have it installed it will not break your app.
I know this is not the answer you were looking for but just thought I would offer my experience
You may also try to call the BarCode scanner App and obtain the result in the parameter of strings rather than importing the whole zxing library into your project due to substantial cost to code integration into your project . Using intents and overriding the OnActivityResult is already a good solution.
XZing is your answer!
yeah yeah they try to push it to use as an external library, but that relies on the user having it installed.... but it's all open source and you can use it however you prefer.
So download that code, integrate it directly into your app and there you go.
alright so I've searched for quite sometime on this and I can't seem to find just the kind of answer that answers my questions...so here goes nothing! And mind you, I'm new to android dev soooo I may have stupid questions that some of you may get irritated at, but we all have to learn some how right?
I'm trying to develop an application that will allow users to scan in a QR code and then display the information that is encoded into it in a nice organized way.
It seems like ZXing doesn't like the idea of integrating their code with other applications e.g. you have to use their application from the market and point to it via intents... well if I do it this way, can I decode the contents so that I can have access to the content and do as I want with it?
What would I have to include in my project from the ZXing folder that I downloaded to make it all work? And would I have to build all of the objects with in that folder in order to use them in my project?
Any help would be greatly appreciated. Thanks!
I have decided to go other routes.
The "Android way" is to do everything via intents.. However, zxing is a special case. You can follow the intent route, or you can (as it's apache licensed), download the source code and adapt as necessary. We did that for the game Barcode Beasties ( mandatory self promoting download link here : https://market.android.com/details?id=com.fawepark.android.barcodebeasties ) and that meant we could also brand the scan page as well.
If you want use the software integrated, then just download the source and either compile it as a library or just include it in your source folder as another folder.
I want to read QR code in a text, how can I do this?
if your talking about how to reading and not development you can download a free QR reader from the market and use it.
If your programming then i also suggest using ZXing project lib to do the same.
You definitely need to seek guidance from ZXing's project, as mentioned below your question by blessenm. Once you get the code. You need to setup that code and run that on your device. Explore this code and get the basics. I hope it will be lot easier for you to understands how it works. You can simplify that code eliminating extra things.