B4A Library ZXingLib(integration version)by icefairy333

Johan Schoeman · May 10, 2015

lazreg said:
Hi @icefairy333 & every body here ..
post #127
i got this error when the capture done :
An Error has occured in Sub:
java.lang.NullPointerException Continue?
Thank you So much.

Are you using the project in post #127 or your own project based on the project in post #127? Does the error occur with all QR Codes that you scan or only with certain QR Codes? If only certain QR Codes, can you post one of those QR Codes? If your own project, did you add/change the following to/in the manifest files of your project?

B4X:

AddApplicationText(<activity android:name="ice.zxing.CaptureActivity"
            android:screenOrientation="landscape" android:configChanges="orientation|keyboardHidden"
            android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
            android:windowSoftInputMode="stateAlwaysHidden">
        </activity>)

I have tested it on a number of QR Codes and it scans all without any issues.

M.LAZ · May 11, 2015

Thanks Johan,
yes i'm using the project in post #127,this error occurred when i try to capture EAN-8 or EAN-13 barcodes, i think the problem from the parameter bts() As Byte
because when i use the other parameters (atype As String , Values As String ) there is no error and work perfectly.

B4X:

Sub myzx_result(atype As String,Values As String,bts() As Byte)

''Log("type:" & atype & " -  values:" & Values & " -  rawbytes(hex):" & bc.HexFromBytes(bts))

''Msgbox("type:" & atype & " -  values:" & Values &" -  rawbytes(hex):" & bc.HexFromBytes(bts),"result")
 
 
Msgbox("atype : " & atype  & "Values : " & Values ,"Barcode")

    ListView1.AddTwoLines(Values)
    ListView1.TwoLinesLayout.ItemHeight=70dip
    ListView1.TwoLinesLayout.SecondLabel.Height=70dip
    ListView1.TwoLinesLayout.Label.TextSize = 20
    ListView1.TwoLinesLayout.Label.TextColor = Colors.Blue
    ListView1.TwoLinesLayout.SecondLabel.TextSize = 16
 
 
End Sub

YES I ADD IT TO the manifest files.

mike2506 · Jun 3, 2015

I need to read a barcode EAN13 format + EAN5 as in the attached image. Can someone help me. Thank you

Johan Schoeman · Jun 4, 2015

mike2506 said:
I need to read a barcode EAN13 format + EAN5 as in the attached image. Can someone help me. Thank you

Try QRCPV4 from here

https://www.b4x.com/android/forum/threads/qr-code-library.41408/#post-259448

It does read EAN13. Have not checked EAN5

mike2506 · Jun 6, 2015

Thanks for the reply, but the barcode consists of an EAN13 code and a small distance from a code of EAN5. Italian newspapers have this dual code that locates the newspaper (EAN13) and the date of publication (EAN5). The double code should be read in a single step. In annex I reproduce an example of such code

Johan Schoeman · Jun 6, 2015

mike2506 said:
Thanks for the reply, but the barcode consists of an EAN13 code and a small distance from a code of EAN5. Italian newspapers have this dual code that locates the newspaper (EAN13) and the date of publication (EAN5). The double code should be read in a single step. In annex I reproduce an example of such code

Seems to me as if the original ZXING project does not support EAN5

BluSky76 · Jun 14, 2015

Black screen of tablet Asus. It works with Samsung.

Johan Schoeman · Jun 15, 2015

BluSky76 said:
Black screen of tablet Asus. It works with Samsung.

I suggest you read through this complete thread and see what changes to the manifest have sorted out similar problems. And then try those suggestions and see if it solves the problem.

BluSky76 · Jun 15, 2015

Thank you.
I tried various solutions, but do not work on Asus products. I have two different models asus and does not work on any of the two.

manuel-r · Jun 29, 2015

Hi @All

I've a problem with the orientation of the scanning line. My app works in portrait mode. The scanning area should be part of full screen in landscape orientation. That's no problem. But the scanning line then is verticaly (red in picture) while I need horizontaly (blue in attached picture).

Can anybody help me?

B4X:

Sub Process_Globals
    'These global variables will be declared once when the application starts.
    'These variables can be accessed from all modules.

End Sub

Sub Globals
    'These global variables will be redeclared each time the activity is created.
    'These variables can only be accessed from this module.
    Dim zx As Zxing_B4A
    Dim objScanRect As Rect
    Dim objPreRect As Rect
End Sub

Sub Activity_Create(FirstTime As Boolean)
    'Do not forget to load the layout file created with the visual designer. For example:
    'Activity.LoadLayout("Layout1")
    objScanRect.Initialize(5%x,0,30%y,100%x)
    objPreRect.Initialize(5%x,0,30%y,100%x)
    zx.preRect = objPreRect
    zx.scanRect = objScanRect
    zx.BeginScan("myzx")
End Sub

Sub Activity_Resume

End Sub

Sub Activity_Pause (UserClosed As Boolean)

End Sub

Sub myzx_result(atype As String,Values As String)
   Log("type:"&atype&"values:"&Values)
   Msgbox("type:"&atype&"values:"&Values,"result")
End Sub

manuel-r · Jun 29, 2015

Bei dem Vornamen vermute ich mal du sprichst deutsch ;-)
Das mit dem Manifest-File habe ich schon gemacht. Allerdings dreht dann der Bildschirm auf Landscape. Ich will den ja in Portrait behalten, aber den Scanbereich auf ein waagerechtes Rechteck festlegen.
Zwischenzeitlich habe ich aber deinen Thread unter https://www.b4x.com/android/forum/t...y-johan-schoeman-qr-codes-and-barcodes.49084/ gefunden und die Beispiele dort angetestet. Die machen genau das was ich will. Kann das an den Modifikationen liegen die du in die Lib eingebaut hast?

Gruß
Manuel

manuel-r · Jul 1, 2015

Hi Johann
You wrote me that you don't understand german as good as I thougt. So I try to repeat my post in english.

I've allready edited the manifest file. But with no good result.
If I do so the Display switches 90° against the position of the smartphone. My intent is to hold the mobile in portrait and configure the scaning area to an rectangle that looks like 90% width and 30% height.
If I switch the manifest to "portrait" I get an image on the mobile that looks like picture "manifest portrait". You see, that it is turned left because my monitor still standing at the table ;-)
If I change to landscape in the manifest file the orientation is as expected (picture "manifest landscape"). The scanning aera is correct too. But the scanning line is verticaly instead of being horizontaly.

Meanwhile I found your post in https://www.b4x.com/android/forum/t...y-johan-schoeman-qr-codes-and-barcodes.49084/ so I will try to do it with your modified library.

Johan Schoeman · Jul 1, 2015

manuel-r said:
Hi Johann
You wrote me that you don't understand german as good as I thougt. So I try to repeat my post in english.

I've allready edited the manifest file. But with no good result.
If I do so the Display switches 90° against the position of the smartphone. My intent is to hold the mobile in portrait and configure the scaning area to an rectangle that looks like 90% width and 30% height.
If I switch the manifest to "portrait" I get an image on the mobile that looks like picture "manifest portrait". You see, that it is turned left because my monitor still standing at the table ;-)
If I change to landscape in the manifest file the orientation is as expected (picture "manifest landscape"). The scanning aera is correct too. But the scanning line is verticaly instead of being horizontaly.

Meanwhile I found your post in https://www.b4x.com/android/forum/t...y-johan-schoeman-qr-codes-and-barcodes.49084/ so I will try to do it with your modified library.

Use the project that I have posted here. It is set up for portrait. Make sure you copy the jar and xml that are in the /files folder of the B4A project to your additional libraries folder.

https://www.b4x.com/android/forum/t...r-codes-and-barcodes.49084/page-3#post-346040

manuel-r · Jul 1, 2015

Thank you

fash866 · Apr 25, 2016

can it more bigger?

GaNdAlF89 · Jul 22, 2016

@Johan Schoeman
Thanks for all. But if I touch the display (at any position) the app is stopped, with this exception:

B4X:

java.lang.RuntimeException: setParameters failed
   at android.hardware.Camera.native_setParameters(Native Method)
   at android.hardware.Camera.setParameters(Camera.java:1452)
   at ice.zxing.camera.CameraManager.myTorchParametersOn(CameraManager.java:205)
   at ice.zxing.CaptureActivity.onTouchEvent(CaptureActivity.java:118)
   at android.app.Activity.dispatchTouchEvent(Activity.java:2471)
   at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:2061)
   at android.view.View.dispatchPointerEvent(View.java:7525)
   at android.view.ViewRootImpl.deliverPointerEvent(ViewRootImpl.java:3370)
   at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:3302)
   at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:4394)
   at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:4372)
   at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:4476)
   at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:171)
   at android.os.MessageQueue.nativePollOnce(Native Method)
   at android.os.MessageQueue.next(MessageQueue.java:125)
   at android.os.Looper.loop(Looper.java:124)
   at android.app.ActivityThread.main(ActivityThread.java:4895)
   at java.lang.reflect.Method.invokeNative(Native Method)
   at java.lang.reflect.Method.invoke(Method.java:511)
   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:994)
   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:761)
   at dalvik.system.NativeStart.main(Native Method)

What is the problem? Thanks

Johan Schoeman · Jul 22, 2016

GaNdAlF89 said:

@Johan Schoeman
Thanks for all. But if I touch the display (at any position) the app is stopped, with this exception:

B4X:

java.lang.RuntimeException: setParameters failed
   at android.hardware.Camera.native_setParameters(Native Method)
   at android.hardware.Camera.setParameters(Camera.java:1452)
   at ice.zxing.camera.CameraManager.myTorchParametersOn(CameraManager.java:205)
   at ice.zxing.CaptureActivity.onTouchEvent(CaptureActivity.java:118)
   at android.app.Activity.dispatchTouchEvent(Activity.java:2471)
   at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:2061)
   at android.view.View.dispatchPointerEvent(View.java:7525)
   at android.view.ViewRootImpl.deliverPointerEvent(ViewRootImpl.java:3370)
   at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:3302)
   at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:4394)
   at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:4372)
   at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:4476)
   at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:171)
   at android.os.MessageQueue.nativePollOnce(Native Method)
   at android.os.MessageQueue.next(MessageQueue.java:125)
   at android.os.Looper.loop(Looper.java:124)
   at android.app.ActivityThread.main(ActivityThread.java:4895)
   at java.lang.reflect.Method.invokeNative(Native Method)
   at java.lang.reflect.Method.invoke(Method.java:511)
   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:994)
   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:761)
   at dalvik.system.NativeStart.main(Native Method)

What is the problem? Thanks

What is the link of the project that you are referring to?

GaNdAlF89 · Jul 22, 2016

Johan Schoeman said:
What is the link of the project that you are referring to?

I tried various version of this
https://www.b4x.com/android/forum/t...scan-qr-codes-and-other-1d-2d-barcodes.49084/

Johan Schoeman · Jul 22, 2016

GaNdAlF89 said:
I tried various version of this
https://www.b4x.com/android/forum/t...scan-qr-codes-and-other-1d-2d-barcodes.49084/

With what library files? Library files from a project in this thread or in the thread of the link that you have posted? It is working and has been tested by numerous members of the B4A forum. Maybe you are doing somerhing wrong. Some libs in that thread goes with certain lib files that was posted in that thread. Most of the postings in that thread have the lib files inside the /Files folder of the B4A project (as far as what I can remember). Make sure to copy the lib files of that project to your additional library folder.

jruiz1998 · Jul 22, 2016

I did that, it stops without any exception

Sub Activity_Touch (Action As Int, x As Float, y As Float)
vv.Stop
Log("Playing Touch Stopped")
zx.BeginScan("myzx") ' It begins again
End Sub

B4A Library ZXingLib(integration version)by icefairy333

Attachments

Expert

Active Member

Member

Attachments

Expert

Member

Expert

Member

Expert

Member

Member

Attachments

Member

Member

Attachments

Expert

Member

Member

Active Member

Expert

Active Member

Expert

Member