Java Development

[ankur_kulkarni]

Hi,

So Has anybody got any success with barcode Readign using camera on BB?

Can someone please guide furhter how to use it?

[rodrifox]

I know there's already some guidance in this thread but considering the dates and how fast these technologies are changing, I was wondering if any of you guys have any updated info (or whether there are any plans to include a barcode library within the rim sdk).

Thanks!

[rodrifox]

Just to update this thread- I'm currently using zxing as srowen suggested and it works pretty much ok with 1D and 2D barcodes. It could have some issues however, when the image is not "perfectly" clear; so maybe not really good for end users, even with advanced BlackBerry phones/cameras.

[peter_strange]

OS 6.0 is rumored to have this built in!  I will be interested to see it. 

[dpolonsky]

hi guys

this is an old post and i hope someone will see it.

I am trying to use zxing library on JDE 4.6 with no luck so far (packaging issues).

Can anyone assist me on that ?

thx

[rodrifox]

@dpolonsky what kind of issues are you having with zxing? Does the code even compile or it's more a runtime issue? The library is not RIM specific so you have to do some manual tunning. Anyway, as I stated before, it's still difficult to find a real end-user scenario in which this can be applicable (at least with 4.x OS). The barcode capture / decoding takes some time and the pre-set camera focus options don't help when trying to get a "good picture". You'll find it often fails due to a bad barcode capture.

[dpolonsky]

Hey rodrifox !

sorry for late replay, i was away for a while.

I didn't figure out how to use QR camera in my project yet.

So far I have created an empty project for QR camera

and filled it with relevant source code for RIM: Core, J2ME and Rim packages

The projects compiles OK, but when i try run it on simulator it fails 

"I/O Error: Cannot run program "jar": CreateProcess error=2, The system cannot find the file specified"

indeed the jar is not there and probably it fails to create it, but why ?

[dpolonsky]

Another flow i have tried is adding the zxing jars to an empty project as external jars.

with a little tweak of removing of removing

MicroEdition-Profile- MIDP-2.0

from the manifest of BarcodeReader.jar

The application is running except for few uncaught exceptions in some flows, and in console I am getting this error

java.util.zip.ZipException: duplicate entry: BarcodeReader-1.cod
 
at java.util.zip.ZipOutputStream.putNextEntry(Unknown Source)
 at java.util.jar.JarOutputStream.putNextEntry(Unknown Source)
 at sun.tools.jar.Main.addFile(Unknown Source)
 at sun.tools.jar.Main.create(Unknown Source)
 at sun.tools.jar.Main.run(Unknown Source)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
 at java.lang.reflect.Method.invoke(Unknown Source)
 at net.rim.tools.compiler.c.e.if(Unknown Source)
 at net.rim.tools.compiler.c.e.a(Unknown Source)
 at net.rim.tools.compiler.Compiler.a(Unknown Source)
 at net.rim.tools.compiler.Compiler.a(Unknown Source)
 at net.rim.tools.compiler.Compiler.compile(Unknown Source)
 at net.rim.tools.compiler.Compiler.main(Unknown Source)
I/O Error: jar command failed: jar -cfm G:\Projects\BarcodeReader\deliverables\Standard\4.6.0\BarcodeReader.jar C:\Users\Daniel\AppData\Loc ...

Packaging project BarcodeReader failed (took 3.239 seconds) 
I/O Error: jar command failed: jar -cfm G:\Projects\BarcodeReader\deliverables\Standard\4.6.0\BarcodeReader.jar C:\Users\Daniel\AppData\Loc ...Packaging project BarcodeReader failed (took 3.239 seconds) 

while I have found only one instance of this jar in BarcodeReader.jar

[rodrifox]

No need to reference an external jar... try to add the source code to the project, not an external jar. There might be a lot of classes and packages you actually don't need.

[dpolonsky]

I have managed to add the zxing library, but it fails to resolve barcode images I am providing it

Maybe it is the low resolution I am using 

"encoding=jpeg&width=640&height=480&quality=normal"

when I am increasing the camera resolution the out of memory exception is thrown