search

sanketwarule / zebra_scanner_plugin

BSD 3-Clause "New" or "Revised" License
6 stars 3 forks source link

Attempt to invoke virtual method #7

Open Simphiwe-Jiyane opened 7 months ago

Simphiwe-Jiyane commented 7 months ago

Hi,

I am trying to use the plugin however I am encountering an issue when trying to initialise the scanner. Please may you assist

E/MethodChannel#zebra_scanner_plugin(13722): java.lang.NullPointerException: Attempt to invoke virtual method 'com.zebra.scannercontrol.DCSSDKDefs$DCSSDK_RESULT com.zebra.scannercontrol.SDKHandler.dcssdkSetDelegate(com.zebra.scannercontrol.IDcsSdkApiDelegate)' on a null object reference E/MethodChannel#zebra_scanner_plugin(13722): at com.androsys.zebra_scanner_plugin.ZebraScannerEngine.initialize(ZebraScannerEngine.java:52) E/MethodChannel#zebra_scanner_plugin(13722): at com.androsys.zebra_scanner_plugin.ZebraScannerEngine.(ZebraScannerEngine.java:31) E/MethodChannel#zebra_scanner_plugin(13722): at com.androsys.zebra_scanner_plugin.ZebraScannerEngine.getInstance(ZebraScannerEngine.java:37) E/MethodChannel#zebra_scanner_plugin(13722): at com.androsys.zebra_scanner_plugin.ZebraScannerPlugin.onMethodCall(ZebraScannerPlugin.java:71) E/MethodChannel#zebra_scanner_plugin(13722): at io.flutter.plugin.common.MethodChannel$IncomingMethodCallHandler.onMessage(MethodChannel.java:267) E/MethodChannel#zebra_scanner_plugin(13722): at io.flutter.embedding.engine.dart.DartMessenger.invokeHandler(DartMessenger.java:295) E/MethodChannel#zebra_scanner_plugin(13722): at io.flutter.embedding.engine.dart.DartMessenger.lambda$dispatchMessageToQueue$0$io-flutter-embedding-engine-dart-DartMessenger(DartMessenger.java:322) E/MethodChannel#zebra_scanner_plugin(13722): at io.flutter.embedding.engine.dart.DartMessenger$$ExternalSyntheticLambda0.run(Unknown Source:12) E/MethodChannel#zebra_scanner_plugin(13722): at android.os.Handler.handleCallback(Handler.java:883) E/MethodChannel#zebra_scanner_plugin(13722): at android.os.Handler.dispatchMessage(Handler.java:100) E/MethodChannel#zebra_scanner_plugin(13722): at android.os.Looper.loop(Looper.java:214) E/MethodChannel#zebra_scanner_plugin(13722): at android.app.ActivityThread.main(ActivityThread.java:7397) E/MethodChannel#zebra_scanner_plugin(13722): at java.lang.reflect.Method.invoke(Native Method) E/MethodChannel#zebra_scanner_plugin(13722): at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492) E/MethodChannel#zebra_scanner_plugin(13722): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:935)

sanketwarule commented 2 months ago

Hello everyone,

I want to let you know that I currently do not have access to a Zebra scanner device. However, I've developed a Zebra scanner integration and made it available publicly here.

I encourage you to explore the project, contribute, and help enhance its functionality. Your contributions will not only help improve the project but also benefit other developers in the community.

Thank you for your support and collaboration!

Best regards, Sanket Warule