使用带有 Datawedge 8.0 + 的 Zebra MC3300 设备
我一直在开发一个扫描应用程序，该应用程序要求我在第一步中扫描 RFID，并在第二步中立即扫描条形码。重复该过程以链接数据库中的 RFID 和条形码。我已经使用数据楔 API 开发了该应用程序，但是在几次扫描后扫描失败 RFID 扫描不再扫描，即使它已启用并且是否启用/禁用配置文件，重新启动应用程序也无济于事. 发生这种情况时，我必须完全重新启动设备才能使其再次工作。
从日志中，我观察到一些我认为可能有助于理解问题的崩溃和消息。任何帮助表示赞赏。
提前致谢。
02-07 19:19:06.021 724 724 I ScannerFramework: [Scanner::ScannerOpen] 'ScannerOpen' called, Calling process pid '1551', package name 'com.symbol.datawedge'
02-07 19:19:06.021 724 724 E ScannerFramework: [StackAdapter::ScannerOpen] User exists but Scanner not initialized
02-07 19:19:06.023 724 724 I ScannerFramework: [Scanner::ScannerOpen] - '0'
02-07 19:19:06.028 528 528 E HWComposer: getLayerReleaseFence: Invalid display
02-07 19:19:06.252 528 528 I chatty : uid=1000(system) /system/bin/surfaceflinger identical 87 lines
02-07 19:19:06.252 528 528 E HWComposer: getLayerReleaseFence: Invalid display
02-07 19:19:06.262 1168 1183 D ActivityTrigger: ActivityTrigger activityStopTrigger
02-07 19:19:06.266 724 1016 I ScannerFramework: [Scanner::IsScannerConnected] 'IsScannerConnected' called, Calling process pid '1551'
02-07 19:19:06.266 724 1016 I ScannerFramework: [Scanner::IsScannerConnected] - '1'
02-07 19:19:06.266 724 1169 I ScannerFramework: [564:280][Scanner::ScannerEnable] 'ScannerEnable' called, Calling process pid '1551'
02-07 19:19:06.275 528 528 E HWComposer: getLayerReleaseFence: Invalid display
02-07 19:19:06.415 528 528 I chatty : uid=1000(system) /system/bin/surfaceflinger identical 23 lines
02-07 19:19:06.415 528 528 E HWComposer: getLayerReleaseFence: Invalid display
02-07 19:19:06.478 724 1169 I imgdec : OCRVersionString 1.6.5.11
02-07 19:19:06.478 724 1169 I imgdec : DecOpen ImgKit IMGKIT_8.03T01.26
02-07 19:19:06.490 724 1169 I ScannerFramework: [StateMachine::MoveState] Transition from 1 to 0 for pid -1
02-07 19:19:06.490 724 1169 I ScannerFramework: [StateMachine::MoveState] Transition from 1 to 0 for pid 1551
02-07 19:19:06.490 724 1169 I ScannerFramework: [Scanner::ScannerEnable] - '0'
02-07 19:19:06.493 1551 1551 D ImagingProxy: Inside ImagingProxy(mServiceName)com.symbol.imagingcapture
02-07 19:19:06.502 724 1169 I ScannerFramework: [StateMachine::MoveState] Transition from 0 to 5 for pid -1
02-07 19:19:06.502 724 1169 I ScannerFramework: [StateMachine::MoveState] Transition from 0 to 5 for pid 1551
02-07 19:19:06.502 724 1169 I ScannerFramework: [DigimarkCWrapper::Decinit] g_mScannerEngine : se4750_cam_builtin g_bInitDone = 1
02-07 19:19:06.513 1168 2203 E ActivityManager: Sending non-protected broadcast com.symbol.datawedge.api.RESULT_ACTION from system 1551:com.symbol.datawedge/u0a10 pkg com.symbol.datawedge
02-07 19:19:06.513 1168 2203 E ActivityManager: java.lang.Throwable
02-07 19:19:06.513 1168 2203 E ActivityManager: at com.android.server.am.ActivityManagerService.checkBroadcastFromSystem(ActivityManagerService.java:19400)
02-07 19:19:06.513 1168 2203 E ActivityManager: at com.android.server.am.ActivityManagerService.broadcastIntentLocked(ActivityManagerService.java:19916)
02-07 19:19:06.513 1168 2203 E ActivityManager: at com.android.server.am.ActivityManagerService.broadcastIntent(ActivityManagerService.java:20151)
02-07 19:19:06.513 1168 2203 E ActivityManager: at android.app.IActivityManager$Stub.onTransact(IActivityManager.java:240)
02-07 19:19:06.513 1168 2203 E ActivityManager: at com.android.server.am.ActivityManagerService.onTransact(ActivityManagerService.java:3045)
02-07 19:19:06.513 1168 2203 E ActivityManager: at android.os.Binder.execTransact(Binder.java:697)
02-07 19:19:06.522 1168 2203 E ActivityManager: Sending non-protected broadcast com.symbol.datawedge.api.RESULT_ACTION from system 1551:com.symbol.datawedge/u0a10 pkg com.symbol.datawedge
02-07 19:19:06.522 1168 2203 E ActivityManager: java.lang.Throwable
02-07 19:19:06.522 1168 2203 E ActivityManager: at com.android.server.am.ActivityManagerService.checkBroadcastFromSystem(ActivityManagerService.java:19400)
02-07 19:19:06.522 1168 2203 E ActivityManager: at com.android.server.am.ActivityManagerService.broadcastIntentLocked(ActivityManagerService.java:20009)
02-07 19:19:06.522 1168 2203 E ActivityManager: at com.android.server.am.ActivityManagerService.broadcastIntent(ActivityManagerService.java:20151)
02-07 19:19:06.522 1168 2203 E ActivityManager: at android.app.IActivityManager$Stub.onTransact(IActivityManager.java:240)
02-07 19:19:06.522 1168 2203 E ActivityManager: at com.android.server.am.ActivityManagerService.onTransact(ActivityManagerService.java:3045)
02-07 19:19:06.522 1168 2203 E ActivityManager: at android.os.Binder.execTransact(Binder.java:697)
02-07 19:19:06.526 1551 1551 D com.symbol.datawedge.api.IntentAPIManager: onReceive(..):com.symbol.datawedge.ScanningService@18323e5,Intent { act=com.symbol.datawedge.api.ACTION flg=0x10 (has extras) }
02-07 19:19:06.541 1168 1543 D CompatibilityInfo: mCompatibilityFlags - 4
02-07 19:19:06.542 1168 1543 D CompatibilityInfo: applicationDensity - 240
02-07 19:19:06.542 1168 1543 D CompatibilityInfo: applicationScale - 1.0
02-07 19:19:06.700 1168 1543 E ActivityManager: Sending non-protected broadcast com.symbol.datawedge.api.RESULT_ACTION from system 1551:com.symbol.datawedge/u0a10 pkg com.symbol.datawedge
02-07 19:19:06.700 1168 1543 E ActivityManager: java.lang.Throwable
02-07 19:19:06.700 1168 1543 E ActivityManager: at com.android.server.am.ActivityManagerService.checkBroadcastFromSystem(ActivityManagerService.java:19400)
02-07 19:19:06.700 1168 1543 E ActivityManager: at com.android.server.am.ActivityManagerService.broadcastIntentLocked(ActivityManagerService.java:19916)
02-07 19:19:06.700 1168 1543 E ActivityManager: at com.android.server.am.ActivityManagerService.broadcastIntent(ActivityManagerService.java:20151)
02-07 19:19:06.700 1168 1543 E ActivityManager: at android.app.IActivityManager$Stub.onTransact(IActivityManager.java:240)
02-07 19:19:06.700 1168 1543 E ActivityManager: at com.android.server.am.ActivityManagerService.onTransact(ActivityManagerService.java:3045)
02-07 19:19:06.700 1168 1543 E ActivityManager: at android.os.Binder.execTransact(Binder.java:697)
02-07 19:19:06.703 1168 1543 E ActivityManager: Sending non-protected broadcast com.symbol.datawedge.api.RESULT_ACTION from system 1551:com.symbol.datawedge/u0a10 pkg com.symbol.datawedge
02-07 19:19:06.703 1168 1543 E ActivityManager: java.lang.Throwable
02-07 19:19:06.703 1168 1543 E ActivityManager: at com.android.server.am.ActivityManagerService.checkBroadcastFromSystem(ActivityManagerService.java:19400)
02-07 19:19:06.703 1168 1543 E ActivityManager: at com.android.server.am.ActivityManagerService.broadcastIntentLocked(ActivityManagerService.java:20009)
02-07 19:19:06.703 1168 1543 E ActivityManager: at com.android.server.am.ActivityManagerService.broadcastIntent(ActivityManagerService.java:20151)
02-07 19:19:06.703 1168 1543 E ActivityManager: at android.app.IActivityManager$Stub.onTransact(IActivityManager.java:240)
02-07 19:19:06.703 1168 1543 E ActivityManager: at com.android.server.am.ActivityManagerService.onTransact(ActivityManagerService.java:3045)
02-07 19:19:06.703 1168 1543 E ActivityManager: at android.os.Binder.execTransact(Binder.java:697)
02-07 19:19:06.706 1551 1551 D com.symbol.datawedge.api.IntentAPIManager: onReceive(..):com.symbol.datawedge.ScanningService@18323e5,Intent { act=com.symbol.datawedge.api.ACTION flg=0x10 (has extras) }
02-07 19:19:06.943 1425 1425 D KeyguardUpdateMonitor: received broadcast android.intent.action.BATTERY_CHANGED
02-07 19:19:06.947 1425 1425 D KeyguardUpdateMonitor: handleBatteryUpdate
02-07 19:19:06.947 1397 1785 D HeadsetStateMachine: Disconnected process message: 10, size: 0
02-07 19:19:06.947 1397 1785 D HeadsetStateMachine: Enter processIntentBatteryChanged()
02-07 19:19:06.947 1397 1785 D HeadsetStateMachine: Exit processIntentBatteryChanged()
02-07 19:19:06.948 1397 1785 D HeadsetStateMachine: Exit Disconnected processMessage()
02-07 19:19:06.948 5492 5492 D com.symbol.dataanalytics.a.a.d.b: Received battery event
02-07 19:19:06.948 5492 5492 D com.symbol.dataanalytics.a.a.d.b: BatteryFactory event action = android.intent.action.BATTERY_CHANGED
02-07 19:19:06.972 528 528 E HWComposer: getLayerReleaseFence: Invalid display
02-07 19:19:06.989 528 528 I chatty : uid=1000(system) /system/bin/surfaceflinger identical 8 lines
02-07 19:19:06.989 528 528 E HWComposer: getLayerReleaseFence: Invalid display
02-07 19:19:07.040 724 1017 I ScannerFramework: [Scanner::ClearReadSubmit] 'ClearReadSubmit' called, Calling process pid '1551'
02-07 19:19:07.040 724 1017 I ScannerFramework: [StateMachine::MoveState] Transition from 5 to 0 for pid -1
02-07 19:19:07.041 724 1017 I ScannerFramework: [StateMachine::MoveState] Transition from 5 to 0 for pid 1551
02-07 19:19:07.041 724 1017 I ScannerFramework: [Scanner::ClearReadSubmit] - '0'
02-07 19:19:07.041 724 1016 I ScannerFramework: [Scanner::ScannerDisable] 'ScannerDisable' called, Calling process pid '1551'
02-07 19:19:07.079 528 528 E HWComposer: getLayerReleaseFence: Invalid display
02-07 19:19:07.079 528 528 I chatty : uid=1000(system) /system/bin/surfaceflinger identical 3 lines
02-07 19:19:07.079 528 528 E HWComposer: getLayerReleaseFence: Invalid display
02-07 19:19:07.111 724 1016 I ScannerFramework: [StateMachine::MoveState] Transition from 0 to 1 for pid -1
02-07 19:19:07.111 724 1016 I ScannerFramework: [StateMachine::MoveState] Transition from 0 to 1 for pid 1551
02-07 19:19:07.111 724 1016 W ScannerFramework: [StateMachine::MoveState] Transition from 1 to 1 is invalid
02-07 19:19:07.111 724 1016 I ScannerFramework: [Scanner::ScannerDisable] - '0'
02-07 19:19:07.111 1551 1551 D ScanningProxy: Inside ScannerRelease(). ReferenceCounter value=1
02-07 19:19:07.112 724 1169 I ScannerFramework: [Scanner::ScannerRelease] 'ScannerRelease' called, Calling process pid '1551'
02-07 19:19:07.112 724 1169 I ScannerFramework: [Scanner::ScannerRelease] - '0'
02-07 19:19:07.167 1551 1551 D ScanningProxy: Inside ScannerOpen().... mReferenceCounter=0
02-07 19:19:07.167 724 724 I ScannerFramework: [Scanner::ScannerOpen] 'ScannerOpen' called, Calling process pid '1551', package name 'com.symbol.datawedge'
02-07 19:19:07.167 724 724 E ScannerFramework: [StackAdapter::ScannerOpen] User exists but Scanner not initialized
02-07 19:19:07.168 724 724 I ScannerFramework: [Scanner::ScannerOpen] - '0'
02-07 19:19:07.472 724 1016 I ScannerFramework: [Scanner::IsScannerConnected] 'IsScannerConnected' called, Calling process pid '1551'
02-07 19:19:07.472 724 1016 I ScannerFramework: [Scanner::IsScannerConnected] - '1'
02-07 19:19:07.473 724 1169 I ScannerFramework: [565:487][Scanner::ScannerEnable] 'ScannerEnable' called, Calling process pid '1551'
02-07 19:19:07.676 724 1169 I imgdec : OCRVersionString 1.6.5.11
02-07 19:19:08.042 1551 1551 I RfidServiceManager: Constructor of RfidServiceManager
02-07 19:19:08.048 1551 1551 D RFIDAPI3: bindtoService
02-07 19:19:08.050 1551 1551 D RFIDAPI3: bindtoService registerReceiver
02-07 19:19:08.050 1168 1569 I rfid_service: GetAvailableReader
02-07 19:19:08.050 1168 1569 I RFIDSERVICE-RFIDService: GetAvailableReaders: [1551] <MC3300R20161523020090>
02-07 19:19:08.066 1551 1551 D RFIDAPI3: Connect
02-07 19:19:08.066 1551 1551 D RFIDAPI3: bindtoService
02-07 19:19:08.066 1551 1551 D RFIDAPI3: bindtoService registerReceiver
02-07 19:19:08.067 1168 1595 I rfid_service: Connect
02-07 19:19:08.067 1168 1595 I RFIDSERVICE-RFIDService: Connect: Attempting to connect, Client Name: MC3300R20161523020090, Client PID: 1551
02-07 19:19:08.109 1168 1387 W Binder : Outgoing transactions from this process must be FLAG_ONEWAY
02-07 19:19:08.109 1168 1387 W Binder : java.lang.Throwable
02-07 19:19:08.109 1168 1387 W Binder : at android.os.BinderProxy.transact(Binder.java:754)
02-07 19:19:08.109 1168 1387 W Binder : at com.zebra.rfid.api3.IRFIDDeviceDataCallBack$Stub$Proxy.onData(IRFIDDeviceDataCallBack.java:95)
02-07 19:19:08.109 1168 1387 W Binder : at com.zebra.rfid.RFIDClientConnection.sendData(RFIDClientConnection.java:205)
02-07 19:19:08.109 1168 1387 W Binder : at com.zebra.rfid.RFIDCommMgr$DataWriteThread.run(RFIDCommMgr.java:393)
02-07 19:19:08.136 1551 1551 D API3Android: API3Android Connect status = 0
02-07 19:19:08.231 502 502 D WifiHAL : In DebugCommand::handleResponse
02-07 19:19:08.231 502 502 D WifiHAL : len = 4, expected len = 4
02-07 19:19:08.233 502 502 D WifiHAL : In DebugCommand::handleResponse
02-07 19:19:08.233 502 502 D WifiHAL : len = 4, expected len = 4
02-07 19:19:08.262 1168 1255 D WifiStateMachine: fetchRssiLinkSpeedAndFrequencyNative rssi=-61 linkspeed=144 freq=2462
02-07 19:19:08.422 1168 2170 E ActivityManager: Sending non-protected broadcast com.symbol.datawedge.api.RESULT_ACTION from system 1551:com.symbol.datawedge/u0a10 pkg com.symbol.datawedge
02-07 19:19:08.422 1168 2170 E ActivityManager: java.lang.Throwable
02-07 19:19:08.422 1168 2170 E ActivityManager: at com.android.server.am.ActivityManagerService.checkBroadcastFromSystem(ActivityManagerService.java:19400)
02-07 19:19:08.422 1168 2170 E ActivityManager: at com.android.server.am.ActivityManagerService.broadcastIntentLocked(ActivityManagerService.java:19916)
02-07 19:19:08.422 1168 2170 E ActivityManager: at com.android.server.am.ActivityManagerService.broadcastIntent(ActivityManagerService.java:20151)
02-07 19:19:08.422 1168 2170 E ActivityManager: at android.app.IActivityManager$Stub.onTransact(IActivityManager.java:240)
02-07 19:19:08.422 1168 2170 E ActivityManager: at com.android.server.am.ActivityManagerService.onTransact(ActivityManagerService.java:3045)
02-07 19:19:08.422 1168 2170 E ActivityManager: at android.os.Binder.execTransact(Binder.java:697)
02-07 19:19:08.423 1168 2170 E ActivityManager: Sending non-protected broadcast com.symbol.datawedge.api.RESULT_ACTION from system 1551:com.symbol.datawedge/u0a10 pkg com.symbol.datawedge
02-07 19:19:08.423 1168 2170 E ActivityManager: java.lang.Throwable
02-07 19:19:08.423 1168 2170 E ActivityManager: at com.android.server.am.ActivityManagerService.checkBroadcastFromSystem(ActivityManagerService.java:19400)
02-07 19:19:08.423 1168 2170 E ActivityManager: at com.android.server.am.ActivityManagerService.broadcastIntentLocked(ActivityManagerService.java:20009)
02-07 19:19:08.423 1168 2170 E ActivityManager: at com.android.server.am.ActivityManagerService.broadcastIntent(ActivityManagerService.java:20151)
02-07 19:19:08.423 1168 2170 E ActivityManager: at android.app.IActivityManager$Stub.onTransact(IActivityManager.java:240)
02-07 19:19:08.423 1168 2170 E ActivityManager: at com.android.server.am.ActivityManagerService.onTransact(ActivityManagerService.java:3045)
02-07 19:19:08.423 1168 2170 E ActivityManager: at android.os.Binder.execTransact(Binder.java:697)
02-07 19:19:08.425 1551 1551 D com.symbol.datawedge.api.IntentAPIManager: onReceive(..):com.symbol.datawedge.ScanningService@18323e5,Intent { act=com.symbol.datawedge.api.ACTION flg=0x10 (has extras) }
02-07 19:19:08.459 1551 1551 D ScanningProxy: Inside ScannerOpen().... mReferenceCounter=0
02-07 19:19:08.460 724 1169 I ScannerFramework: [Scanner::ScannerOpen] 'ScannerOpen' called, Calling process pid '1551', package name 'com.symbol.datawedge'
02-07 19:19:08.460 724 1169 E ScannerFramework: [StackAdapter::ScannerOpen] User exists but Scanner not initialized
02-07 19:19:08.461 724 1169 I ScannerFramework: [Scanner::ScannerOpen] - '0'