Android Question Barcode Reader scanner error

[makis_best]

I try to implement Erel class for barcode reading but I get the error

java.lang.ClassNotFoundException: com.google.android.gms.vision$barcode$BarcodeDetector$Builder
at anywheresoftware.b4j.object.JavaObject.getCorrectClassName(JavaObject.java:288)
at anywheresoftware.b4j.object.JavaObject.InitializeNewInstance(JavaObject.java:83)
at gr.iosif.esfiitems._createdetector(esfiitems.java:539)
at gr.iosif.esfiitems._activity_create(esfiitems.java:507)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:732)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:351)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:255)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:144)
at gr.iosif.esfiitems.afterFirstLayout(esfiitems.java:104)
at gr.iosif.esfiitems.access$000(esfiitems.java:17)
at gr.iosif.esfiitems$WaitForLayout.run(esfiitems.java:82)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5376)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:908)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:703)

What it means?

 

[Erel]

It means that you are not providing enough information.

Are you running the example as-is? Which version of B4A?

 

[makis_best]

I am using B4A 9.3 and I don't use the example I insert class in my application.

 

[Erel]

Start with running the example without making any change. Does it work?

 

[makis_best]

Yes it works fine.

When I run the CreateDetector (Array("ALL_FORMATS")) the error show.

 

[Erel]

When I run the CreateDetector (Array("ALL_FORMATS")) the error show.

While you haven't wrote it, I'm sure that you mean that it fails in your code and not in the example. Make this change in the example and you will see.

 

[makis_best]

The problem was at "ALL_FORMATS" when I change it to "EAN_13" work just fine...

Thank you Erel.