Ionic Barcode Scanning Process Crash in Android

Sunny Shah :

I have used the cordova plugin https://ionicframework.com/docs/native/barcode-scanner/

Where I need to scan multiple barcodes but after a scan or more the Android App crashes. It works fine on IOS devices.

Here is crash log:

11-20 18:45:39.923 30115-30115/com.xyz.optilockdev E/BoostFramework: BoostFramework() : Exception_1 = java.lang.ClassNotFoundException: Didn't find class "com.qualcomm.qti.Performance" on path: DexPathList[[],nativeLibraryDirectories=[/system/lib, /vendor/lib]] 11-20 18:45:53.258 30115-30115/com.xyx.optilockdev E/ViewRootImpl@940705f[MainActivity]: ViewRootImpl #2 Surface is not valid. 11-20 18:46:06.928 30115-30188/com.xyz.optilockdev E/PluginManager: Uncaught exception from plugin
java.lang.IllegalArgumentException: Service not registered: de.appplant.cordova.plugin.background.BackgroundMode$1@7c72892 at android.app.LoadedApk.forgetServiceDispatcher(LoadedApk.java:1352) at android.app.ContextImpl.unbindService(ContextImpl.java:1553) at android.content.ContextWrapper.unbindService(ContextWrapper.java:723) at de.appplant.cordova.plugin.background.BackgroundMode.stopService(BackgroundMode.java:256) at de.appplant.cordova.plugin.background.BackgroundMode.disableMode(BackgroundMode.java:166) at de.appplant.cordova.plugin.background.BackgroundMode.execute(BackgroundMode.java:107) at org.apache.cordova.CordovaPlugin.execute(CordovaPlugin.java:98) at org.apache.cordova.PluginManager.exec(PluginManager.java:132) at org.apache.cordova.CordovaBridge.jsExec(CordovaBridge.java:59) at org.apache.cordova.engine.SystemExposedJsApi.exec(SystemExposedJsApi.java:41) at android.os.MessageQueue.nativePollOnce(Native Method) at android.os.MessageQueue.next(MessageQueue.java:323) at android.os.Looper.loop(Looper.java:136) at android.os.HandlerThread.run(HandlerThread.java:61) 11-20 18:46:45.624 30115-30115/com.xyz.optilockdev E/AndroidRuntime: FATAL EXCEPTION: main Process: com.xyx.optilockdev, PID: 30115
java.lang.RuntimeException: Unable to resume activity {com.xyz.optilockdev/com.xyz.optilockdev.MainActivity}: java.lang.IllegalArgumentException: Service not registered: de.appplant.cordova.plugin.background.BackgroundMode$1@7c72892 at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3844) at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3885) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1692) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:154) at android.app.ActivityThread.main(ActivityThread.java:6776) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1518) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1408) Caused by: java.lang.IllegalArgumentException: Service not registered: de.appplant.cordova.plugin.background.BackgroundMode$1@7c72892 at android.app.LoadedApk.forgetServiceDispatcher(LoadedApk.java:1352) at android.app.ContextImpl.unbindService(ContextImpl.java:1553) at android.content.ContextWrapper.unbindService(ContextWrapper.java:723) at de.appplant.cordova.plugin.background.BackgroundMode.stopService(BackgroundMode.java:256) at de.appplant.cordova.plugin.background.BackgroundMode.onResume(BackgroundMode.java:139) at org.apache.cordova.PluginManager.onResume(PluginManager.java:264) at org.apache.cordova.CordovaWebViewImpl.handleResume(CordovaWebViewImpl.java:450) at org.apache.cordova.CordovaActivity.onResume(CordovaActivity.java:275) at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1277) at android.app.Activity.performResume(Activity.java:7115) at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3821) at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3885)

at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1692) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:154) 
at android.app.ActivityThread.main(ActivityThread.java:67

Gandhi :

It is as issue with background plugin not bar-code scanning plugin as per the error trace mentioned by OP.

The crash issue is still open in background plugin as per the issue link with no resolution on this yet.

Removing the background plugin for now should resolve the crash issue while bar-code scanning.