I have implemented code scanning in my android app using ZXing library.
It is working good, I can read codes, read data from them etc.
However there is one issue, when reading code from my monitor, I have to get my phone far away from the code to make it work, here comes my question, is it possible to change this somehow or it is not possible?
No, this is how the library behaves. To get better result avg distance you need 2.5cm between your scanning device and barcode.
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So, I've created an app and I want to be able to Add bluetooth devices to it (BLE or not). After I've added them, i want to display them in a different activity. I've looked for lots of tutorials(Stackoverflow and others) but couldnt find something specific.
I am a beginner and i used Kotlin to create the app.
Not exactly sure what you're looking for, but perhaps this SensorTag sample app is a simple enough example of what you're looking to accomplish?
It relies on Kotlin Coroutines to scan for nearby SensorTags, then allows you to select one, which navigates you to another Activity and connects to it, then displays sensor data.
I would like to recommend to use the rxJava for the BLE Scanning. For scanning the tags for forground and background working fine '
For view the demo on github rxAndroidBle_github_demo
on this library handled all exception.
I hope this will work for you !
I have been struggeling with that topic for some time and have no idea how to process further. For first release I don't need even QR code, just simple one.
My glass API is XE22.
I have already tried to use https://github.com/dm77/barcodescanner, I changed screen resolution, but seems just camera is turning on.
When I install apk https://github.com/zxing/zxing/releases/tag/BSGlass-0.2.1 I have the same situation, camera is turning on, but there is no box to scan barcode.
Only app which is working for me is BarcodeEye, but have no idea how to integrate it with my app. When used Intent I get the same message as #nagendra in BarCodeEye QR Cocde Scanner implementation in my application , but when try to use tip from #swooby I get message
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.aa00403.barcodetest/com.example.aa00403.barcodetest.Main}: android.content.ActivityNotFoundException: No Activity found to handle Intent { act=com.github.barcodeeye.SCAN flg=0x4080000 pkg=com.github.barcodeeye (has extras) }
I would be greatefull for any hint, how to do it.
I also wanted to make a barcode scanning application. I tested ZXing and barcodeEye, but I couldn't make them work either.
I found a library that works well made by scandit.
The SDK is not free for commercial use, but there is a community plan you can use to trial the library without time-limit. This free version is limited to QR codes and UPC/Ean though.
I'm actually currently making an app that scans a barcode, looks up the product in the Amazon API, then send the result to a Trello list.
Source is at github. If you just need to scan, look at the ScanActivity.
I hope this will help you! Also, I'm absolutely not an Android/Glass expert developer, so fell free to challenge my code :-)
Disclaimer: I don't work for scandit nor do I know anybody working there.
I have got ZXing working (which is what barcode eyes is based on). But it was a total hack, I didn't so much integrate ZXing with my app as integrate my app into the ZXing sample android app, so I still have all the ZXing source in my project.
However ZXing is not good at scanning small barcodes on glass, and by small I mean, any size you'd ever find on an actual product. It works with really big barcodes (around 10-15cm long) and works fairly well with QR codes.
But Scandit does work way better, as Sylvain mentioned it is paid for commercial but is so much easier and cleaner to integrate and the community edition is free. I'd suggest giving that a try.
I am currently trying to get ZXing to scan some barcodes. It's doing that job fine so far (via intent).
Now I would like to make it decode multiple barcodes at once (they are placed beneath each other) without having to scan each barcode individually.
Is this even possible via intent? If not, a short example of how to do it the other way would be appreciated :)
I've so far only found a pretty old thread where a user requested this feature and some developers seem to have integrated it. However, I am unable to find any tutorial explaining the utilization.
The thread can be found here.
It's not possible by Intent, but it is certainly possible within the project. You would have to write your own scanning component, then use the core library's support (which you've found) to find multiple barcodes and do something with them.
I am developing an barcode scanning application using zxing(in eclipse). I have read many stack overflow threads about developing.
I saw mostly things like, need to use a barcode scanner app for handling the decoding the barcodes and QR-codes.
Is there any option to do that also using the code like capturing the image using camera and then read? We need to create an independent app. Can anyone please help me? Thanks in advance and expecting a detailed reply if possible.
One of the biggest advantages of the Android platform is that you can leverage other apps to provide increased usefulness for yours without a ton of work. In essence yes you could rewrite the bar-code app, but a lot of people will ask why would you want to reinvent the wheel? Now it is true that the zxing process is open source so you can look at their entire program, however I found it more effective to just leverage what was already there.
If you place a check in the program to see if the system can handle the action, you can recommend people get the bar-code scanner to unlock that functionality.
This process is encouraged by the folks at Google. However, as always, you can always try to rewrite it from scratch.
Hi I am developing an application for the android htc hero. I am looking into ways of using the inbuilt camer to read 2D barcodes and extract the string returned from the barcode. I have only recently begun working with the android sdk but I do have a programming background from working on projects with java. I am curious to know what the best way to read the 2D barcode would be. I have some sample applications that read the barcode but they are all .apk files and have no source or library that i can work with. to give you a better idea of what i am trying to accomplish this site allows the generation of 2d barcodes made up of the data you desire here
Any replies would be greatly appreciated.
Android programs can interact with eachother using intents. Intents are a little like remote procedure calls: you ask the other program for a certain action (e.g. scan a barcode) and the other program will perform this task for you. The result is returned when the task is complete.
If the user has installed the ZXing Barcode Scanner, you can just use an intent to scan a barcode. The Barcode Scanner will then start, let the user scan the code and return the result to you.
More information about this scanner can be found on the Google Code page of this project: http://code.google.com/p/zxing/wiki/ScanningViaIntent
I'd look at this open source Android project: http://code.google.com/p/zxing/
For fellow Google search travelers, there is a 2012 post on the android developers blog on how to use intents with the example of barcode scanning :
http://android-developers.blogspot.com/2012/02/share-with-intents.html
As far as I know for decoding barcodes (apart from the algorithm) you need to know the (relative) widths of white and black bars. For that, you would have to rotate the barcode to a horizontal position and then detect the widths.
(Ok, the ZXIng stuff advised by others outperforms this manual hacking)