cognex mobile barcode sdk for android (v2.3.x)

t it le:CognexMobileBarcodeSDKforAndroid(v2.3.x);ver:2.6.x 1/37

CognexMobileBarcodeSDKforAndroid(v2.3.x)

BarcodeScanningwithaSmartphoneorTablet

Thedifferencesinthecapabilitiesofsmartphonesasbarcodescanningdevicesresultinauserexperiencedifferentfrompurpose-builtscanners,impactingthedesignofthemobilebarcodescanningapplication.Byfollowingafewsimpleguidelines,youcandevelopapplicationswiththecmbSDKthatworkthesamewaywhenusinganMXMobileTerminalorthebuilt-incameraofamobiledevice.

Toinitiatebarcodescanningwithoutadedicatedhardwaretrigger,seeMobileDeviceTriggering.Toaimforbarcodescanningwithasmartphonethatdoesnothaveanaimer,seeMobileDeviceAiming.Tochoosethemostsuitableorientationforbarcodescanning,seeMobileDeviceOrientation.ToreducetheCPUusageofthemobiledevicewhenitperformsimageanalysisandbarcodedecoding,seeOptimizingMobileDevicePerformance.

CmbSDKemploysadefaultsetofoptionsforbarcodereadingwiththebuilt-incameraofthemobiledevice.However,cmbSDKdoesnotimplementsavedconfigurationsforthecamerareader.Thismeansthateverytimeanapplicationstartsthatusesthecamerareader,itstartswiththedefaultsettingsofthecamerareader.Foralistofthedefaultsettings,seetheAppendix.

Overview

CognexMobileBarcodeSDK(cmbSDK)isatoolfordevelopingmobilebarcodescanningapplications.CmbSDKisbasedonCognex'sDataMantechnologyandtheManateeWorksBarcodeScanningSDKanditallowsyoutocreatebarcodescanningapplicationsformobiledevices.MobiledevicesusedforbarcodescanningrangefromsmartphonestotheMXSeriesindustrialbarcodereaders.CmbSDKabstractsthedevicethroughaReaderDeviceconnectionlayer.Oncetheapplicationestablishesitsconnectionwiththereader,asingle,unifiedAPIisusedasinterfacetoconfigurethedevice,e liminatingtheneedtowritetoomuchconditionalcode.

CmbSDKprovidestwobasicReaderDeviceconnectionlayers:

MXreaderforbarcodescanningwithdevicesliketheMX-1000andMX-1502Camerareaderforbarcodescanningwiththebuilt-incameraofthemobiledevice

BarcodeScanningwithanMXMobileTerminal

https://cmbdn.cognex.com/v2.2.x/knowledge/cognex-mobile-barcode-sdk-for-android/barcode-scanning-with-a-smartphone-android/mobile-device-triggering

https://cmbdn.cognex.com/v2.2.x/knowledge/cognex-mobile-barcode-sdk-for-android/barcode-scanning-with-a-smartphone-android/mobile-device-aiming

https://cmbdn.cognex.com/v2.2.x/knowledge/cognex-mobile-barcode-sdk-for-android/barcode-scanning-with-a-smartphone-android/mobile-device-orientation

https://cmbdn.cognex.com/v2.2.x/knowledge/cognex-mobile-barcode-sdk-for-android/barcode-scanning-with-a-smartphone-android/optimizing-mobile-device-performance

https://cmbdn.cognex.com/v2.2.x/knowledge/cognex-mobile-barcode-sdk-for-android/appendix-dmcc-for-the-camera-reader


ThecmbSDKsupportsCognex’sMXSeriesMobileTerminalsandsomeoftheirfeaturesusingcmbSDKarethefollowing:

Hardwaret rigger:MXMobileTerminalsincludetwobuilt-intriggersforbarcodescanning.Theyalsosupportapistolgripwithtriggerthatisanoptionalaccessory.Illuminat ionandaiming:MXMobileTerminalshavebuilt-inilluminationandaiming,makingitunnecessarytohavealivepreviewonthesmartphone'sscreen.Conf igurat ions:YoucanexportandimportconfigurationsetstoMXMobileTerminalsusingCognex’sDataManSetupToolforWindows,theQuickSetupmobileapplicationorcmbSDK.Youcanhavemultiplescanningapplications,eachofwhichrequiresadifferentsetofdevicesettings.High-capacitybat tery:MXMobileTerminalshaveanintegratedbatterythatpowerstheMXscanningengineandthemobiledevice.TheoptionalpistolgripincludesasecondbatterythatdoublesthepowercapacityoftheMXMobileTerminal.

DebuggingonMXMobileTerminal

Normallyyouconnectyourmobiledevice(phoneortablet)toyourPCviatheUSBorlightningporttostartdebugging.IfanMXMobileTerminalisattachedtoyourmobiledeviceviatheUSBorlightningportwhileyourapplicationisrunning,youneedtodebugyourapplicationviaWi-Fi.

DebuggingonAndroid:

TodebugusingAndroidStudio,connectyourAndroiddeviceviaUSBtoyourPCandmakesureyoucanrunanddebugyourapplicationusingtheUSBcable.ToConnectyourAndroiddevicetoWi-Fi,makesurethatAndroidToolsareinstalledbesideyourIDE.

1. Type"adbtcpip5555"tosetthedevice'sportto5555intheterminal.2. Getthemobiledevice'sIPaddressbytyping"adbshellip-f inet addrshow

wlan0"orfinditmanuallyinthesettingsmenuofyourmobiledevice.3. Type"adbconnect device_ip:5555"toconnecttoyourmobiledevice.Thisprompts

amessageifitisconnectedsuccessfully.4. DisconnecttheUSBcablefromyourmobiledevice.5. ConnectyourmobiledevicetotheMXMobileTerminalandproceedtodebugyour

appasifitwasconnectedviacable.

Note:AfteryouconnectyourmobiledevicetotheMXMobileTerminal,Wi-Ficonnectionmightbelost.IftheWi-Ficonnectionislost,repeatstep3.

6. Whenyouaredone,type"adb-sdevice_ip:5555usb"toswitchyourdevicebacktoUSBconnectionmode.


CAUTION:Leavingthewirelessdebuggingoptionenabledisnotrecommendedasanyoneinyournetworkcanconnecttoyourdeviceindebug,evenifyouareindatanetwork.DoitonlywhenyouareconnectedtoatrustedWiFianddisconnectwhenyouaredone.

BarcodeScanningwithaSmartphone

MobileDeviceTriggering

Withoutahardwaretrigger,mobiledevicesmustusealternativemethodstoinitiatebarcodescanning.ThecmbSDKsupportsthreemethodstotriggerbarcodescanning:

Applicat ionorworkf lowdrivent rigger:Theapplicationcodeorthebusinesslogic/workflowoftheapplicationinvokesthescanningmodule.Insimpleprogrammingterms,itiscallingafunctionlikestartScanner().Virtualt rigger:Tostartorstopthescanningprocesstheapplicationprovidesabuttononthescreen.Dependingontheapplicationdesign,youneedtopressandholdthevirtualbuttontokeepthescannerrunning,thisinvokesthescanningmodule.Simulatedt rigger:Pressoneofthevolume-downbuttonstostartorstopthescanningprocessjustlikewhenyoupullatriggeronapurpose-builtscanner.

MobileDeviceAiming

Thebuilt-incameraprovidesalive-streampreviewonthedisplayofthemobiledeviceforbarcodeaiming.Repositionthemobiledeviceuntilthebarcodeappearsinthefie ldofviewofthebuilt-incameraandtheapplicationdecodesit.CmbSDKprovidesabuilt-inpreviewcontrolthatcanbedisplayedinpartialorfullscreen,andineitherportraitorlandscapeorientation.

ThecmbSDKalsosupportspassiveaimers:devicesattachedtothemobiledeviceoritscasethatusetheLEDflashofthedeviceasalightsourcetoprojectanaimingortargetingpattern.Themobiledevicecanprojectanaimerpatternsimilartoapurpose-builtscannersolive-previewisnotneeded.However,byusingtheLEDflashasanaimer,generalscanningilluminationisnotavailable.

MobileDeviceOrientat ion

ThecmbSDKsupportsportraitorientation,landscapeorientationandauto-rotationforboththepresentationofthebarcodepreviewandthescandirection.Mobiledevicescanscanmostbarcodesregardlessoftheorientationoftheapplicationand/orthemobiledevice.


PORTRAIT ORLANDSCAPE PORTRAIT ONLY

Mostbarcodescanbescannedineither

portraitorlandscapeorientation.

Mostwelldefinedandmoderatelysizedbarcodescanbescannedinaportrait

orientation,whichisthemostnaturalwaytoholdthemobiledevice.

Example:QR,DataMatrix,Maxicode.

Long,dense,orpoorlyformedbarcodesareeasiertoscaninalandscapeorientation,whichisof

OptimizingMobileDevicePerformance

Mobiledevicesareanidealplatformforbarcodedecoding.ThecmbSDKisoptimizedformobileenvironment,butimageanalysisandbarcodedecodingisstillaCPUintensiveactivity.Sincetheseprocessessharethemobiledevice'sCPUwiththemobileoperatingsystem(OS),services,andotherapplications,theseprocessesoptimizeyourbarcodescanningapplicationandlimitittoonlyusingthefeaturesofthecmbSDKthattheyneed.

Tooptimizeyourapplication:

Enabledecodingonlyforthebarcodetypestheapplicationneedstoscan.ThecmbSDKsupportsthedecodingofalmost40differentbarcodetypesandsubtypes,enablingallresultsinlowperformanceandunexpectederrors.Donotenablecertainsymbologiesand/oradvancedfeaturesatthesametime.Optimizeyourcameraresolution.Bydefault,thecmbSDKusesHDimagesforbarcodedecoding.Useanappropriatedecodereffortlevel.ThecmbSDKhasaconfigurableeffortlevelthatcontrolshowaggressivelyitperformsimageanalysis.ThecmbSDKusesadefaultvalue(level2)thatissufficientformostbarcodes.Usingahigherlevelcanresultinbetterdecodingofpoorerqualitybarcodes,resultinginslowerperformance.

Nobarcodesymbologiesareenabledbydefault,whenthecmbSDKisinitializedforusewiththemobiledevice'sbuilt-incamera.

UsingcmbSDK

InstallingcmbSDK

InstallingtheAndroidcmbSDK


Note:cmbSDKiscompatiblewithAndroidStudio.

1. DownloadtheCognexMobileBarcodeSDKforAndroidfromtheCognexMobileBarcodeScannerSolutionspage.

2. StartAndroidStudioandaddtheSDKAARfile asamoduletoyourproject:

1. Rightclickyourappmodule,selectNew>Module>Import.JAR/.AARPackage,andclickNext .

2. BrowsethecmbSDK.AARfile intheFilenamefie ld,andclickFinish.

3. Afterthenewmoduleisavailable,rightclickyourappmodule,selecttheOpenModuleSet t ings,andchoosetheDependenciestab.

4. Clickthe+signatthetopoftheDeclaredDependenciesdialogboxandselectthe3Moduledependency.

5. SelectcmbsdklibfromthepopupwindowandclickOK,makingthecmbsdklibmoduleavailableundertheDependenciestab.

6. InstalltheMXConnectapplicationfromthePlayStoretocommunicatewithMXmobileterminals.

InstallingtheiOScmbSDK:

1. InstallthelatestXCodeforiOSDevelopment.2. DownloadtheCognexMobileBarcodeSDKforiOS.

LicensingcmbSDK

https://cmbdn.cognex.com/download

https://play.google.com/store/apps/details?id=com.cognex.mxconnect&hl=en

https://itunes.apple.com/us/app/xcode/id497799835

https://cmbdn.cognex.com/files/download_latest/cmbSDK_iOS


TousecmbSDKforbarcodescanningwithamobiledevicewithoutanMXmobileterminal,youneedtoinstallalicensekey.Ifthelicensekeyismissing,asteriskswillappearinsteadofscannedresults.

ContactyourCognexSalesRepresentativeforinformationonhowtoobtainalicensekey,including30-daytriallicenses.

Android:

1. Afterobtainingyourlicensekey,addthefollowinglineintheAndroidManifest.xmlfileofyourapplicationundertheapplicationtag:

<meta-dataandroid:name="MX_MOBILE_LICENSE"android:value="YOUR_MX_MOBILE_LICENSE"/>

2. ReplaceYOUR_MX_MOBILE_LICENSEwithyourlicensekey.

<applicationandroid:allowBackup="true"android:icon="@mipmap/ic_launcher"android:label="@string/app_name"android:roundIcon="@mipmap/ic_launcher"android:supportsRtl="true"android:theme="@style/AppTheme"><activityandroid:name=".ScannerActivity"android:configChanges="orientation|screenSize"><intent-filter><actionandroid:name="android.intent.action.MAIN"/>

<categoryandroid:name="android.intent.category.LAUNCHER"/></intent-filter></activity>

<meta-dataandroid:name="MX_MOBILE_LICENSE"android:value="g/9ytJzcja+sxt4DTEDxR4hp6sZh9bmL97vUx+EE9uY="/>

</application>

YoucanalsoaddthelicensekeybycopyingthetextbelowwhenyoucreatenewinstancefromReaderDevice.

casePhoneCamera:readerDevice=ReaderDevice.getPhoneCameraDevice(this,param_cameraMode,PreviewOption.DEFAULTS,null,"SDK_KEY");

iOS:


Afterobtainingyourlicensekey,additasaStringinyourapplication'sInfo.plistfile underthekeyMX_MOBILE_LICENSE.

Migrat ingfromaDataManSDKforMXReaderstocmbSDK

1. InstalltheMXConnectapplicationfromthePlaystore.ThisappenablesyourmobilephonetoseamlesslyconnecttoCognexMXreaders.

2. InstallcmbSDKtoyourproject.

3. UseDataManSystem.createDataManSystemForMXDevice()factorymethodtocreateaDatamanSystemobject.

4. Remove:

AllDataManSystem.createDataManSystemOverUsb()methodsfromyourproject.AllDataManSystem.createDataManSystemOverUsbAccessory()methodsfromyourproject.USB_DEVICE-ATTACHEDandUSB_ACCESSORY_ATTACHEDIntentfiltersandmeta-datafromtheAndroidManifest.xmlfile .USBandaccessorydescriptorxmlfilesfromtheXMLfolder.

Writ ingaMobileApplicat ion

CmbSDKprovidesahigh-level,abstractinterfaceforsupportedscanningdevices:theMXmobileterminalsandthecameraofthemobilephone.

TheprimaryinterfacebetweenyourapplicationandthebarcodescanningdeviceistheReaderDeviceclass.TheReaderDeviceclassrepresentsanabstractionlayertothe

http://play.google.com/store/apps/details?id=com.cognex.mxconnect&hl=en

https://cmbdn.cognex.com/v2.2.x/knowledge/cognex-mobile-barcode-sdk-for-android/using-cmbsdk/installing-cmbsdk


device,handlingallcommunicationandnecessaryhardwaremanagement,suchasscanningwithasmartphone.

PerformthefollowingstepstousecmbSDK:

1. CreateaninstancefromtheReaderDeviceclasswiththetypeofscanningdeviceyouwanttouse(MXreaderorcamerareader).

2. ConnecttotheReaderDeviceinstanceyoucreated.

3. ConfiguretheReaderDeviceinstance,ifnecessary.

4. Startscanning.

Initializationandconnectionneedtobeperformedonlyonceinyourapplication.

MXmobileterminalsneedtobereconfigurediftheybecomedisconnectedduetoforexampletimingoutordrainedbattery.Toavoidthis,youcansavetheconfiguration.YourapplicationcanusebothanMXmobileterminalandcamerascanning.Inthiscaseyouhavetoestablishanewconnectiontoadifferentdeviceafterdisconnectingfromthecurrentdevice.Youcancheckoursampleappfordemonstrationtoseehowitworks.

Sett ingupanApplicat iontoUsecmbSDKforAndroid

PerformthefollowingstepstosetupandstartusingcmbSDK:

1. Importthefollowingpackagemembers,orjusttheclassesyouuse:

importcom.cognex.dataman.sdk.*importcom.cognex.mobile.barcode.sdk.*

2. BuildyourUIaccordingtoyourneeds,butconsideringthefollowingaspects:

Youhavetodecideifyouyouwanttoshowpartialorafullscreen(thatisthedefault)camerapreview.YouneedaViewGroupcontainertousepartialpreview,forexampleRelat iveLayout .Noadditionalcontainerisneededforfullscreenpreview.


Oursampleapp(thatyoucanfindinthecmbSDKbundle)isusingfullscreenpreview.Tochangethesampleapptousepartialview,addthefollowingRelat iveLayout attheendofConst raintLayoutinact ivity_scanner.xmlfile .UsethislayoutadaViewGroupparameterinreaderdeviceconstructor(getPhoneCameraDevice)whenreaderdeviceisinitialized.

<RelativeLayoutandroid:id="@+id/rlPreviewContainer"android:layout_width="match_parent"android:layout_height="200dp"app:layout_constraintTop_toTopOf="parent"app:layout_constraintStart_toStartOf="parent"app:layout_constraintStart_toEndOf="parent"/>

Todisplaythelastscannedimage,anImageViewcontainerisneeded.Todisplaythescannedresultasatext,aTextViewisneeded.

3. Setupthefollowinginterfacestomonitortheconnectionstateofthereaderandreceiveinformationaboutthereadcode:

publicclassScannerActivityextendsAppCompatActivityimplementsOnConnectionCompletedListener,ReaderDeviceListener,ActivityCompat.OnRequestPermissionsResultCallback{....

//Theconnectmethodhascompleted,hereyoucanseewhethertherewasanerrorwithestablishingtheconnectionornot@OverridepublicvoidonConnectionCompleted(ReaderDevicereaderDevice,Throwableerror){//Ifwehavevalidconnectionerrorparamwillbenull,//otherwisehereiserrorthatinformusaboutissuethatwehavewhileconnectingtoreaderdeviceif(error!=null){

//askforCameraPermissionifnecessaryif(errorinstanceofCameraPermissionException)ActivityCompat.requestPermissions(((ScannerActivity)this),newString[]{Manifest.permission.CAMERA},REQUEST_PERMISSION_CODE);

updateUIByConnectionState();}}

//Thisiscalledwhenaconnectionwiththeself.readerDevicehasbeenchanged.//ThereaderDeviceisusableonlyinthe"ConnectionState.Connected"state@OverridepublicvoidonConnectionStateChanged(ReaderDevicereader){clearResult();if(reader.getConnectionState()==ConnectionState.Connected){//Wejustconnected,sonowconfigurethedevicehowwewantitconfigureReaderDevice();

https://cmbdn.cognex.com/knowledge/cognex-mobile-barcode-sdk-for-android/using-cmbsdk/using-the-camera-reader


}

isScanning=false;updateUIByConnectionState();}

//Thisiscalledafterscanninghascompleted,eitherbydetectingabarcode,cancelingthescanbyusingtheon-screenbuttonorahardwaretriggerbutton,orifthescanningtimed-out@OverridepublicvoidonReadResultReceived(ReaderDevicereaderDevice,ReadResultsresults){clearResult();

if(results.getSubResults()!=null&&results.getSubResults().size()>0){for(ReadResultsubResult:results.getSubResults()){createResultItem(subResult);}}elseif(results.getCount()>0){createResultItem(results.getResultAt(0));}

isScanning=false;btnScan.setText("STARTSCANNING");resultListAdapter.notifyDataSetChanged();}

//ThisiscalledwhenaMX-1xxxdevicehasbecameavailable(USBcablewasplugged,orMXdevicewasturnedon),//orwhenaMX-1xxxthatwaspreviouslyavailablehasbecomeunavailable(USBcablewasunplugged,turnedoffduetoinactivityorbatterydrained)@OverridepublicvoidonAvailabilityChanged(ReaderDevicereader){if(reader.getAvailability()==Availability.AVAILABLE){connectToReaderDevice();}elseif(reader.getAvailability()==Availability.UNAVAILABLE){AlertDialog.Builderalert=newAlertDialog.Builder(this);alert.setTitle("Devicebecameunavailable").setPositiveButton("OK",null).create().show();}}

4. InstantiateaReaderDeviceobject.

UsingtheMXReader

InitializeaReaderDeviceobjectforMXreadersusingthefollowingfactorymethod:

caseMX:readerDevice=ReaderDevice.getMXDevice(this);

//ListenwhenaMXdevicehasbecameavailable/unavailable


if(!availabilityListenerStarted){readerDevice.startAvailabilityListening();availabilityListenerStarted=true;}

TheavailabilityoftheMXmobileterminalcanchangewhenthedeviceturnsonoroff,oriftheUSBcablegetsconnectedordisconnected.YoucanhandlethosechangesusingthefollowingReaderDeviceListenerinterfacemethod:

publicvoidonAvailabilityChanged(ReaderDevicereader);

UsingtheCameraReader

YouarerecommendedtouseanMXmobileterminaltoscanbarcodes.However,cmbSDKalsosupportsusingthebuilt-incameraofamobiledevice.Thisincludesthesupportofoptionalexternalaimersorillumination,andthecustomizationofthelive-streampreview'sappearance.

Toscanbarcodesusingthebuilt-incameraofamobiledevice,initializetheReaderDeviceobjectusingthegetPhoneCameraDevicestaticmethod.Thecamerareaderhasseveraloptionswheninitialized.Thefollowingparametersarerequired:

ContextCameraModePreviewOptionViewGroupRegistrationKeyCustomData

TheContextparameterprovidesareferencetotheactivityyouarecurrentlyin.

TheCameraModeparameterisoftypeCameraModedefinedinCameraMode.javaanditacceptsoneofthevalueslistedinthefollowingtable.

Thesemodesprovidethefollowingdefaultsettingsforthereader:

Thezoomfeatureisavailableandabuttontocontrolitisvisibleonthelive-streampreview(ifdisplayed).Thesimulatedhardwaretrigger(volumecontrolbuttons)isdisabled.WhenstartScanning()iscalled,thedecodingprocessisstarted.

Basedontheselectedmode,additionalilluminationoptionsandbehaviorsareset,alsolistedinthetable.


VALUE DESCRIPT ION ILLUMINATIONLIVE-

STREAMPREVIEW

NO_AIMER

Initializesthereadertousealive-streampreviewonthemobiledevice

screensotheusercanpositionthe

barcodewithinthecamera’sfieldofviewfordetectionanddecoding.Usethismodeifthe

mobiledevicedoesnothaveanaiming

accessory.

Illuminationisavailableandabuttontocontrolitisvisibleonthelive-stream

preview.Displayed

Ifcommandsaresenttothe

readerforaimercontrol,theyare

ignored.

PASSIVE_AIMER

Initializesthereadertouseapassiveaimer.Nolive-

streampreviewisavailableonthe

devicescreeninthismode,sinceanaimingpatternis

projected.

Illuminationisnotavailable,andthelive-streampreviewdoesnothaveanilluminationbutton.

NotDisplayed

Ifcommandsaresenttothereaderforillumination

control,theyareignoredbecauseitisassumedinthismodethatthebuilt-inLEDofthemobiledeviceisbeingusedforthe

aimer.

Initializesthereadertousethefrontcameraofthe

mobiledevice,ifavailable.Usethisconfigurationwith

Thefrontcameraisused.

Illuminationisnotavailableandthe

live-stream


FRONT_CAMERAcarebecausemostfrontfacingcamerasdonothaveauto

focusandillumination,and

providesignificantlylowerresolution

images.Illuminationisnotavailablein

thismode.

previewdoesnothaveanilluminationbutton.

Displayed

Ifcommandsaresenttothe

readerforaimerorillumination

control,theyareignored.

ThePreviewOptionparameterisoftype PreviewOptiondefinedinPreviewOpt ion.java,andisusedtochangethereader’sdefaultvaluesoroverridedefaultsderivedfromtheselectedCameraMode.Youcanspecifythefollowingoptions:

VALUE DESCRIPT ION

DEFAULTS AcceptalldefaultssetbytheCameraMode.

NO_ZOOM_BUTTONHidesthezoombuttononthelive-stream

preview,preventingtheuserfromadjustingthezoomofthemobiledevice

camera.

NO_ILLUMINATION_BUTTONHidestheilluminationbuttononthelive-streampreview,preventingtheuserfrom

togglingtheillumination.

HARDWARE_TRIGGER

Enablesasimulatedhardwaretrigger(thevolumedownbutton)forstartingscanningonthemobiledevice.Thisbuttononly

startsscanningwhenpressed,itdoesnotneedtobeheldlikeapurpose-builtscanner’strigger,andpressingita

secondtimedoesnotstopthescanningprocess.

PAUSED

Ifusingalive-streampreview,thepreviewisdisplayedwhenthe

startScanning()methodiscalled,butthereaderdoesnotstartdecodinguntiltheuserpressestheon-screenbuttonto

startthescanningprocess.


ALWAYS_SHOWForcesalive-streampreviewtobedisplayedevenifanaimingmodeis

selected(forexampleCameraMode==PASSIVE_AIMER).

HIGH_RESOLUTION

Usesthedevicecamerainhigherresolution,changingthedefault

1280x720resolutionto1920x1080ondevicesthatsupportit,andtothedefaultresolutionondevicesthatdonotsupport

it.Thiscanhelpwithscanningsmallbarcodes,butincreasesthedecodingtimeasthereismoredatatoprocessin

eachframe.

HIGH_FRAME_RATEUsesthedevice'scamerain60FPS

insteadofthedefault30FPStoprovideasmoothercamerapreview.

SHOW_CLOSE_BUTTON Showclosebuttoninpartialview.

TheViewGroup(optional)parameterspecifiesthecontainerforthelive-streampreview.Iftheparameterisleftnull,afullscreenpreviewisused.

TheRegistrationKey(optional)parameterisusedtolicenseyourSDKwithlicensekeythatyouhave

TheCustomData(optional)parameterisusedforcustomtracking

Example

Createareaderwithnoaimer,nozoombutton,andusingasofttrigger:

readerDevice=ReaderDevice.getPhoneCameraDevice(this,CameraMode.NO_AIMER,PreviewOption.NO_ZOOM_BUTTON|PreviewOption.PAUSED);

Thisstartsapreviewwiththescannerpausedandasofttriggerbuttontotogglescanning.Afterpressingthesofttriggerbutton,theexpectedpreviewlookisthis:


Theviewfinderintheimagehasanactivescanningsurfaceasaresultofhavingsetactivesymbologies.Formoredetails,seeEnablingSymbologies.

Request ingCameraPermissionforPhoneCameraScanner

FromAndroid6.0andaboveyouneedtorequestpermissionfromtheusertoaccessthebuilt-incameraofthemobiledevice.

Ifthecameracannotbeopenedduetopermissionissues,theonConnectionCompleted(readerDevice,error)callbackcontainsaCameraPermissionExceptionintheerrorparameter.YoucancheckforthisexceptiontypewiththeinstanceofoperatorandrequestpermissionwithintheActivity.

if(errorinstanceofCameraPermissionException)ActivityCompat.requestPermissions(((ScannerActivity)this),newString[]{Manifest.permission.CAMERA},REQUEST_PERMISSION_CODE);

https://cmbdn.cognex.com/v2.2.x/knowledge/cognex-mobile-barcode-sdk-for-android/cmbsdk-for-android/enabling-symbologies


YouneedtoimplementtheActivityCompat.OnRequestPermissionResultCallbackinterfaceinyourActivitytocatchtheuserpermissionresult.TohandleuserresponseinonRequestPermissionResult(…),youcanusethefollowingcodetoretryconnectingtothephonecamera:

@OverridepublicvoidonRequestPermissionsResult(intrequestCode,@NonNullString[]permissions,@NonNullint[]grantResults){//Checkresultfrompermissionrequest.Ifitisallowedbytheuser,connecttoreaderDeviceif(requestCode==REQUEST_PERMISSION_CODE){if(grantResults.length>0&&grantResults[0]==PackageManager.PERMISSION_GRANTED){if(readerDevice!=null&&readerDevice.getConnectionState()!=ConnectionState.Connected)readerDevice.connect(ScannerActivity.this);}else{if(ActivityCompat.shouldShowRequestPermissionRationale(((ScannerActivity)this),Manifest.permission.CAMERA)){AlertDialog.Builderbuilder=newAlertDialog.Builder(this).setMessage("YouneedtoallowaccesstotheCamera").setPositiveButton("OK",newDialogInterface.OnClickListener(){@OverridepublicvoidonClick(DialogInterfacedialogInterface,inti){ActivityCompat.requestPermissions(ScannerActivity.this,newString[]{Manifest.permission.CAMERA},REQUEST_PERMISSION_CODE);}}).setNegativeButton("Cancel",null);AlertDialogdialog=builder.create();dialog.show();}}}}

Connect ingtotheReaderDevice

Beforeconnecting,settheReaderDeviceListenerobjecttoreceiveevents:

readerDevice.setReaderDeviceListener(this);

Fordetails,seestep3inSettingupyouapplicationto-usetheCognexMobileBarcodeSDKforAndroid.

https://cmbdn.cognex.com/v2.2.x/knowledge/cognex-mobile-barcode-sdk-for-android/using-cmbsdk/setting-up-an-application-to-use-cmbsdk-for-android


Additionally,youcanenablesendingthelasttriggeredimageandSVGfromthereader:

readerDevice.enableImage(true);readerDevice.enableImageGraphics(true);

Invoketheconnectmethodafterinitializ ingtheReaderDeviceandsettingalistenermethodtohandleresponsesfromthereader.TheconnectmethodtakesOnConnectionCompletedListenerasparameter:

//MakesurethedeviceisturnedONandreadyreaderDevice.connect(ScannerActivity.this);

ThefollowinglistenermethodsarecalledwiththenewReaderDevicestatusinformation:

publicvoidonConnectionStateChanged(ReaderDevicereader);publicvoidonConnectionCompleted(ReaderDevicereader,Throwableerr)

TheonConnectionCompletedmethodpassedasaparameterofconnectisalsoinvokedastheconnectionprocesscompletes.Iftherewasaconnectionerror,thismethodprovidesaThrowableobject.

ScanningBarcodes

Afterconnectingtothescanningdevice,youmayneedtochangesomeofitssettings.CmbSDKprovidesasetofhigh-levelanddevice-independentAPIsforsettingandretrievingthecurrentconfigurationofthedevice.

YoucanstartscanningbarcodeswithaproperlyconfiguredreaderbycallingthestartScanningmethodfromyourReaderDeviceclass:

readerDevice.startScanning();

IfusinganMXmobileterminal,youcanpressatriggerbuttononthedevicetoturnthescanneronandreadabarcode.Ifusingthecamerareader,cmbSDKstartsthecamera,displaystheconfiguredlive-streampreview,andbeginsanalyzingtheframesfromthevideostream,lookingforaconfiguredbarcodesymbology.


Youcanstopscanningwiththefollowing:

readerDevice.stopScanning();

Scanningstopsunderoneofthefollowingconditions:

Thereaderfoundanddecodedabarcode.Youreleasedthetriggerorpressedthestopbuttononthelive-streampreviewscreen.Thecamerareadertimedoutwithoutfindingabarcode.TheapplicationcallsthestopScanning()method.

Whenabarcodeisdecodedsuccessfully,youreceiveaReadResultsiterableresultcollectionobjectintheReaderDevicelistenermethod.TheonReadResultReceivedlistenermethodisinvokedeitherbecausethereaderdecodedabarcodeorthescanningprocesswascomplete.

Example

//Thisiscalledafterscanninghascompleted,eitherbydetectingabarcode,cancelingthescanbyusingtheon-screenbuttonorahardwaretriggerbutton,orifthescanningtimed-out@OverridepublicvoidonReadResultReceived(ReaderDevicereaderDevice,ReadResultsresults){clearResult();

if(results.getSubResults()!=null&&results.getSubResults().size()>0){for(ReadResultsubResult:results.getSubResults()){createResultItem(subResult);}}elseif(results.getCount()>0){createResultItem(results.getResultAt(0));}

isScanning=false;btnScan.setText("STARTSCANNING");resultListAdapter.notifyDataSetChanged();}

EnablingSymbologies

CmbSDKdoesnotenableanysymbologiesbydefaultforbarcodereadingwiththebuilt-incameraofthemobiledevice.Youmustenableallbarcodesymbologiesyourapplicationneedstoscantoachieveoptimalscanningperformance.Formoredetails,see


OptimizingMobileDevicePerformance.

IndividualsymbologiescanbeenabledusingthefollowingmethodoftheReaderDeviceclass:

publicvoidsetSymbologyEnabled(finalSymbologysymbology,finalbooleanenable,finalOnSymbologyListenerlistener)readerDevice.setSymbologyEnabled(Symbology.DATAMATRIX,true,null);readerDevice.setSymbologyEnabled(Symbology.UPC_EAN,true,null);

AllsymbologiesusedforthesymbologyparameterinthismethodcanbefoundinReaderDevice.java.

Examples

/*EnableQRscanning*/readerDevice.setSymbologyEnabled(Symbology.QR,true,null);

Youcanalsousethesamemethodtodisablesymbologies:

/*DisableCode25scanning*/readerDevice.setSymbologyEnabled(Symbology.C25,false,null);

YoucanimplementthemethodforOnSymbologiesListenertochecktheresultofthesymbologychange:

@OverridepublicvoidonSymbologyEnabled(ReaderDevicereader,Symbologysymbology,Booleanenabled,Throwableerror){if(error!=null){/*Unsuccessfulprobablythesymbologyisunsupportedbythecurrentdevice,orthereisaproblemwiththeconnectionbetweenthereaderDeviceandMXdevice*/}else{//Success}}

Illuminat ionControl

https://cmbdn.cognex.com/v2.2.x/knowledge/cognex-mobile-barcode-sdk-for-android/barcode-scanning-with-a-smartphone/optimizing-mobile-device-performance


Ifyourreaderdeviceisequippedwithilluminationlights,youcancontrolthem:whenscanningstarts,youcanturnthemonoroff.UsethefollowingmethodofyourReaderDeviceobject:

readerDevice.setLightsOn(true,null);

YoucanimplementtheinterfacemethodforOnLightsListener,whichisthesecondparameterofthemethod.

publicclassScannerActivityextendsAppCompatActivityimplements....OnLightsListener....{....@OverridepublicvoidonLightsOnCompleted(ReaderDevicereader,Booleanon,Throwableerror){if(error!=null){//Unsuccessful}else{//Success}}}

Notalldevicesanddevicemodessupportilluminationcontrol.

CameraZoomSett ings

Ifthebuilt-incameraofamobiledeviceisusedasthereaderdevice,youcanconfigurezoomlevelsandhowtheyareused.Therearethreezoomlevels:

normal:notzoomed(100%)level1zoom(150%onAndroidbydefault)level2zoom(300%onAndroidbydefault)

TheSETCAMERA.ZOOM-PERCENT[100-MAX][100-MAX]commandisforconfiguringhowfarthetwolevelszoominpercentage.100isnotzoomedandMAX(goesupto1000)zoomsasfarasthedeviceiscapableof.Thefirstargumentisusedforsettinglevel1zoom,andthesecondforlevel2zoom.

YoucancheckthecurrentzoomsettingwiththeGETCAMERA.ZOOM-PERCENTcommand,whichreturnstwovalues:level1andlevel2zoom.

Example

readerDevice.getDataManSystem().sendCommand("SETCAMERA.ZOOM-PERCENT250500");


Note:ThecameraneedstobestartedwithincmbSDKatleastoncetohaveavalidmaximumzoomlevel.Itmeansthatifyousetthezoomlevelto1000andthedevicecanonlygoupto600,theGETCAMERA.ZOOM-PERCENTcommandreturns1000aslongascameraisnotopened,butitreturns600afterwards.

GET/SETCAMERA.ZOOM0-2isanothercommandthatsetsthezoomlevelorreturnstheactualsetting.PossiblevaluesfortheSETcommandare:

0-normal(notzoomed)1-level1zoom2-level2zoom

Youcancallthiscommandbeforeorevenduringscanning,andthezoomgoesuptotheconfiguredlevel.Ifscanningisfinished,thevalueisresettonormalbehavior(0).

Example

readerDevice.getDataManSystem().sendCommand("SETCAMERA.ZOOM2");

CameraOverlayCustomizat ion

Whenusingthemobiledevice'scamera,cmbSDKallowsyoutoseethecamerapreviewinsideapreviewcontainerorinfullscreen.Thispreviewalsocontainsacustomizableoverlay.ThecmbSDKcameraoverlayfeaturesbuttonsforzooming,flashingandclosingthescanner,andaprogressbarindicatingthescantimeout.

TousethelegacycameraoverlayoriginallyusedincmbSDKv2.0.xandManateeWorksSDK,usethispropertyfromMWOverlaybeforeinitializ ingthereaderDevice:

MWOverlay.overlayMode=MWOverlay.OverlayMode.OM_LEGACY;

Thecustomizationofthelegacycameraoverlayislimited,soitisrecommendedtousethecmbSDKoverlay.

WhenusingthecmbSDKoverlay:

1. CopythelayoutfilesfromtheResources/layoutdirectoryintoyourprojectandmodifythem.Usecmb_scanner_part ial_view.xmlifscanningisstartedinsideacontainer(partialview),andusecmb_scanner_view.xmlifscanningisstartedinfullscreen.


2. Modifythelayoutaccordingtoyourneeds.Forexample,youcanchangethesizes,positionsorcoloroftheviews,removeviewsandaddyourownviews,likeanoverlayimage.

CmbSDKaccessestheviewsituses(zoom,flash,closebuttons,theviewusedfordrawinglinesonthecorners,andtheprogressbar)withtheandroid:tagattribute.Donotchangetheandroid:tagattribute,otherwisecmbSDKcannotrecognizetheviewsandcontinuestofunctionasiftheyareremoved.

BoththecmbSDKandthelegacyoverlayallowyoutochangetheimagesusedonthezoomandflashbuttonsifyourimageshavethesamenameasthenamescmbSDKuses.YoucanfindtheimagesandnamesusedincmbSDKintheResources/drawable-mdpianddrawable-hdpidirectories.Whiletheotherresolutionsareoptional,thesetwodirectoriesmustcontainyourimageswiththecorrectnamessothatcmbSDKdisplaystheproperimages.

BoththecmbSDKandthelegacyoverlayallowyoutochangethecolorandwidthoftherectanglethatisdisplayedwhenabarcodeisdetected,orthecolorandwidthoftheviewfinderrectangle.MakesuretochangecolorsaftervalidconnectiontoreaderDevice.

Example:

MWOverlay.locationLineColor=Color.YELLOW;MWOverlay.locationLineWidth=6;

MWOverlay.viewportLineColor=Color.YELLOW;MWOverlay.viewportLineWidth=6;

AdvancedConfigurat ionusingDataManControlCommands

CognexscanningdevicesimplementDataManControlCommands(DMCC)forconfiguringandcontrollingthedevice.Everyfeatureofthedevicecanbecontrolledusingthistext-basedlanguage.TheAPIprovidesamethodforsendingDMCCcommandstothedevice.Commandsexistbothforsettingandqueryingconfigurationproperties.

TheAppendixincludesthecompleteDMCCreferenceforthecamerareader.

TheDMCCsforMXmobileterminalsandothersupporteddevicescanbefoundintheirrespectivemanualsavailablethroughSetupTool.

ThefollowingexamplesshowdifferentDMCCsenttothedeviceformoreadvancedconfiguration.

https://cmbdn.cognex.com/v2.2.x/knowledge/cognex-mobile-barcode-sdk-for-android/appendix-a-dmcc-for-the-camera-reader/appendix-a-dmcc-for-the-camera-reader


Examples

//ChangethescandirectiontoomnidirectionalreaderDevice.getDataManSystem().sendCommand("SETDECODER.1D-SYMBOLORIENTATION0",ScannerActivity.this);//Changelive-streampreview'sscanningtimeoutto10secondsreaderDevice.getDataManSystem().sendCommand("SETDECODER.MAX-SCAN-TIMEOUT10",ScannerActivity.this);

YoucanalsoinvokeDMCCquerycommandsandreceivetheirresponseintheOnResponseReceivedListener.onResponseReceived()method.

//GetthetypeofdeviceconnectedreaderDevice.getDataManSystem().sendCommand("GETDEVICE.NAME",newOnResponseReceivedListener(){@OverridepublicvoidonResponseReceived(DataManSystemdataManSystem,DmccResponsedmccResponse){if(dmccResponse.getError()!=null){//UnsuccessfulLog.e("DMCC_ERR",“GETDEVICE.NAMEfailed”,dmccResponse.getError());}else{//Success-Usethefollowingresultfields://intmResponseId=dmccResponse.getResponseId();//StringmPayLoad=dmccResponse.getPayLoad();//byte[]mBinaryData=dmccResponse.getBinaryData();}});}

Resett ingtheConfigurat ion

CmbSDKincludesamethodforresettingthedevicetoitsdefaultsettings(notthefactorydefaults).IncaseofanMXmobileterminal,thisisthesavedconfiguration.Incaseofabuilt-incamera,thesearethedefaultsidentifiedintheAppendix,wherenosymbologiesareenabled.Thismethodofresettingthedeviceisthefollowing:

readerDevice.resetConfig(null);

WhenusinganMXmobileterminal,therearethreestatesthatwecandistinguish:

FactorydefaultsSavedconfiguration:whenthereweredifferentconfigurationssetonthedeviceandCONFIG.SAVEDMCCwascalled.Sessionconfiguration:whenyoumakechangesonthesavedconfiguration,the

https://cmbdn.cognex.com/v2.2.x/knowledge/cognex-mobile-barcode-sdk-for-android/appendix-a-dmcc-for-the-camera-reader


changesarevaliduntiltheMXMobileTerminalisrebooted.Ifitisrebooted,ithasthesavedconfigurationstate.

YoucanmonitorthecompletionofthisasyncmethodusingtheOnResetConfigListenerinterface,whichisanoptionalparameter.

publicclassScannerActivityextendsActivityimplements....OnResetConfigListener....{....@OverridepublicvoidonResetConfigCompleted(ReaderDevicereader,Throwableerror){if(error!=null){//Unsuccessful}else{//Success}}

WorkingwithResults

Whenabarcodeissuccessfullyread,theonReadResultReceivedmethodcreatesandreturnsaReadResultobject.Incaseofhavingmultiplebarcodessuccessfullyreadonasingleimageorframe,multipleReadResultobjectsarereturnedintheReadResultobject.

TheReadResultclasshaspropertiesdescribingtheresultofabarcoderead:

isGoodRead()(boolean):te llswhetherthereadwassuccessfulornotget ReadSt ring()(String):thedecodedbarcodeasastringget Image()(Bitmap):theimage/framethatthedecoderprocessedget ImageGraphics()(String):theboundarypathofthebarcodeasSVGdataget Xml()(String):therawXMLthatthedecoderreturnedget Symbology(Symbology):thesymbologytypeofthebarcode.ThisenumisdefinedinReaderDevice.java.

Whenascanningendswithnosuccessfulread,aReadResultisreturnedwiththegoodReadpropertysettofalse.

ToenabletheimageandimageGraphicspropertiesbeingfilledintheReadResultobject,setthecorrespondingenableImage()and/orenableImageGraphics()propertiesoftheReaderDeviceobject.

Toaccesstherawbytesfromthescannedbarcode,youcanusetheXMLproperty.ThebytesarestoredasaBase64Stringunderthe"full_string"tag.TheexampleshowshowyoucanuseanXMLparsertoextracttherawbytesfromtheXMLproperty.

Example


try{XmlPullParserFactoryfactory=XmlPullParserFactory.newInstance();factory.setNamespaceAware(true);XmlPullParserxpp=factory.newPullParser();

Stringtag="";

//therawbyteswillbestoredinthisvariablebyte[]bytes;

xpp.setInput(newStringReader(result.getXml()));inteventType=xpp.getEventType();while(eventType!=XmlPullParser.END_DOCUMENT){if(eventType==XmlPullParser.START_TAG){tag=xpp.getName();}elseif(eventType==XmlPullParser.TEXT&&tag.equals("full_string")){Stringbase64String=xpp.getText();//Getthebytesfromthebase64stringherebytes=Base64.decode(base64String,Base64.DEFAULT);break;}elseif(eventType==XmlPullParser.END_TAG&&tag.equals("full_string")){tag="";break;}eventType=xpp.next();}}catch(Exceptione){e.printStackTrace();}

ImageResults

TheimageandSVGresultsaredisabledbydefault,whichmeansthatwhenscanning,theReadResultsdonotcontainanydatainthecorrespondingproperties.

Toenableimageresults,invoketheenableImage()methodfromtheReaderDeviceobject:

readerDevice.enableImage(true);

ToenableSVGresults,invoketheenableImageGraphics()methodonReaderDeviceobject:

readerDevice.enableImageGraphics(true);


HandlingDisconnects

Ifadevicedisconnectsduetolowbatteryconditionormanualcabledisconnection,itcanbedetectedbytheonConnectionStateChanged()methodoftheReaderDeviceListenerinterface.

Note:TheonAvailabilityChanged()methodofReaderDeviceListenerisalsocalledwhenthedevicebecomesphysicallyunavailable.Itmeansthat(re)connectionisnotpossible.AlwayscheckthegetAvailability()methodoftheReaderDeviceobjectbeforetryingtocalltheconnect()method.

Appendix-DMCCfortheCameraReader

Appendix-DMCCfortheCameraReader

ThefollowingtableliststhevariousDMCCcommandssupportedbythecmbSDKwhenusingthebuilt-incameraforbarcodescanning.

ManyofthesecommandsarealsosupportedbytheMXmobileterminals.CommandsthatareuniquetothecamerareaderareindicatedassuchwithanXinthelastcolumn.

GET/SET COMMAND PARAMETER(S) DESCRIPT ION DEFAULT VALUE

GET/SET BATTERY.CHARGE Returnsthe

currentbatterylevelofthedeviceasapercentage.

BEEP Playstheaudiblebeep(tone).

Setsthenumberofbeeps(0-3)andthebeep


GET/SET BEEP.GOOD [0-3][0-2]

tone/pitch(0-2,forlow,medium,high).Forthebuilt-incamera,

onlyasinglebeepwithnopitchcontrolis

supported.Thus,01turnsthebeepoff,11turnsthe

beepon.

11(Turnbeepon)

GET/SET CAMERA.ZOOM 0-2

ThepossiblevaluesfortheSETcommandare:0-

normal(un-zoomed),1-

zoomatlevel1,2-zoomatlevel2.Thiszoomlevelis

usedduringscanning.Whenscanningendsit

resetto0.

GET/SET CAMERA.ZOOM-PERCENT

[100-MAX][100-MAX]

Sets/Returnslevel1zoom(default150%onAndroid,200%oniOS),

andlevel2zoom(default300%onAndroid,400%on

iOS).Note:Thecamera

needstobestartedatleastoncefromsdktohaveapropervalueformaxcapablezoom

(MAX)

GET/SET CODABAR.CODESIZE ONminmaxOFFminmax

AcceptsanylengthCodabar.Setsmin/maxlengthofacceptedCodabar.


GET/SET C11.CHKCHAR ON|OFF TurnsCode11checkdigiton/off.

GET/SET C11.CHKCHAR-OPTION 12

Requiressinglechecksum.

Requiresdoublechecksum.

GET/SET C11.CODESIZE ONminmaxOFFminmax

AcceptsanylengthCode11.Setsmin/maxlengthof

acceptedCode11.



acceptedCode25.

GET/SET C39.ASCII ON|OFFTurnsCode39extendedASCII

on/off.



acceptedCode39.

GET/SET C39.CHKCHAR ON|OFF TurnsCode39checkdigiton/off

GET/SET C93.ASCII ON|OFFTurnsCode93extendedASCII

on/off



acceptedCode93.

Setsorgetsthe


GET/SET COM.DMCC-HEADER 01 headeroptionusedinExtended

mode.

GET/SET COM.DMCC-RESPONSE 01DMCCresponse

format.1:Extended.

0:Silent(default)

CONFIG.DEFAULT

ResetsmostofthecameraAPI

settingstodefault,exceptthosenotedasnotresetting(seeAppendixB).Toresetallsettings,

useDEVICE.DEFAULT.

CONFIG.SAVE

Savesthecurrentconfigurationtonon-volatile

memory(MX-1xxxonly).NotethatwhenanMXpowersofforenterssleepmode,thelast

savedconfigurationis

restoredwhenthedevicewakesup.

CONFIG.RESTORE

Restoresthesaved

configurationfromnon-volatile

memory(MX-1xxxonly).

GET/SET DATA.RESULT-TYPE01248

Specifiesresultstobereturned(sumformultiple

values):0-None

1-Textstringresult(default)2-XMLresults4-XMLstats


8-Scanimage(seeIMAGE.*commands)

GET/SET DATABAR.EXPANDED ON|OFFTurnstheDataBar

Expandedsymbologyon/off.

GET/SET DATABAR.LIMITED ON|OFFTurnstheDataBar

Limitedsymbologyon/off.

GET/SET DATABAR.RSS14 ON|OFFTurnstheDataBarRSS14symbology

on/off.

GET/SET DATABAR.RSS14STACK ON|OFFTurnstheDataBarRSS14Stacked

symbologyon/off.

GET/SET DECODER.1D-SYMBOLORIENTATION

0123

Useomnidirectionalscanorientation.Usehorizontaland

verticalscanorientation.

Useverticalscanorientation.

Usehorizontalscanorientation.

GET/SET DECODER.EFFORT 1-5

Setstheeffortlevelforimage

analysis/decoding.Thedefaultis2.

Donotuse4-5foronlinescanning.

GET/SET DECODER.MAX-SCAN-TIMEOUT 1-120

Setsthetimeoutforthelive-streampreview.Whenthe

timeoutisreached,

decodingispaused;thelive-streampreviewwillremainon-

screen.


GET DECODER.MAX-THREADS

ReturnsthemaxnumberofCPU

threadssupportedbythedevice.

GET/SET DECODER.THREADS-USED [0-MAX]

SpecifythemaxnumberofCPUthreadsthatthescannercanuse

duringthescanningprocess.

DEVICE.DEFAULT

Resetsthedevice(includingthecameraAPI)

settingstodefault(seeAppendixB).

GET DEVICE.FIRMWARE-VER Getsthedevicefirmwareversion.

GET DEVICE.ID

ReturnsdeviceIDassignedbyCognextothe

scanningdevice.Forabuilt-incamera,SDKreturns53.

GET/SET DEVICE.NAME

Returnsthenameassignedtothe

device.Bydefault,thisis“MX-“plusthelast6digitsofDEVICE.SERIAL-

NUMBER.

“MX-“+thelastsixdigits

DEVICE.SERIAL-

GET DEVICE.SERIAL-NUMBER

Returnstheserialnumberofthe

device.Forabuilt-incamera,theSDKassignsapseudo-random

number.

ReturnsthedevicenameassignedbyCognextothe


GET DEVICE.TYPE scanningdevice.Forabuilt-incamera,SDKreturns“MX-Mobile”.

GET/SET FOCUS.FOCUSTIME 0-10

Setsthecamera’sauto-focusperiod(howoftenthecamerashouldattempttorefocus).

GET/SET I2O5.CHKCHAR ON|OFFTurnsInterleaved2of5checkdigit

on/off.

GET/SET I205.CODESIZE ONminmaxOFFminmax

AcceptsanylengthInterleaved

2of5.Setsmin/maxlengthofaccepted

Interleaved2of5.

GET/SET IMAGE.FORMAT012

Scannerreturnsimageresultinbitmapformat.ScannerreturnsimageresultinJPEGformat.

ScannerreturnsimageresultinPNGformat.

GET/SET IMAGE.QUALITY 10,15,20,...90 SpecifiesJPEGimagequality.

GET/SET IMAGE.SIZE0123

Scannerreturnsfullsizeimage.Scannerreturns1/4sizeimage.Scannerreturns1/16sizeimage.Scannerreturns1/62sizeimage.


GET/SET LIGHT.AIMER 0-1Disables/enablestheaimer(whenthescannerstarts).

DefaultbasedoncameraMode:0:

1:PassiveAimerand

GET/SET LIGHT.AIMER-TIMEOUT 0-600 AimerTimeoutinseconds.

GET/SET LIGHT.INTERNAL-ENABLE ON|OFF

Enables/disablesillumination(when

thescannerstarts).

GET/SET MSI.CHKCHAR ON|OFF TurnsMSIPlesseycheckdigiton/off.

GET/SET MSI.CHKCHAR-OPTION

012345

Usemod10checksum

Usemod10mod10checksumUsemod11

checksum(IBMalgorithm)

Usemod11mod10checksum(IBM

algorithm)Usemod11

checksum(NCRalgorithm)

Usemod11mod10checksum(NCR

algorithm)

GET/SET MSI.CODESIZE ONminmaxOFFminmax

AcceptsanylengthMSIPlessey.

Setsmin/maxlengthof

acceptedMSIPlessey.

GET/SET SYMBOL.AZTECCODE ON|OFFTurnstheAztecCodesymbology

on/off.

GET/SET SYMBOL.CODABAR ON|OFF TurnstheCodabar


symbologyon/off.

GET/SET SYMBOL.C11 ON|OFF TurnstheCode11symbologyon/off.

GET/SET SYMBOL.C128 ON|OFFTurnstheCode128symbology

on/off.

GET/SET SYMBOL.C25 ON|OFFTurnstheCode25symbologyon/off

(standard).



GET/SET SYMBOL.COOP ON|OFFTurnstheCOOP

symbology(Code25variant)on/off.

GET/SET SYMBOL.DATAMATRIX ON|OFFTurnstheData

Matrixsymbologyon/off.

GET/SET SYMBOL.DATABAR ON|OFF

TurnstheDataBarExpandedand

Limitedsymbologies

on/off.

GET/SET SYMBOL.DOTCODE ON|OFF TurnstheDotCodesymbologyon/off.

GET/SET SYMBOL.IATA ON|OFFTurnstheIATA

symbology(Code25variant)on/off.

GET/SET SYMBOL.INVERTED ON|OFFTurnstheInvertedsymbology(Code25variant)on/off.

GET/SET SYMBOL.ITF14 ON|OFFTurnstheITF-14symbology(Code


25variant)on/off.

GET/SET SYMBOL.UPC-EAN ON|OFF

TurnstheUPC-A,UPC-E,EAN-8,and

EAN-13symbologies

on/off.

GET/SET SYMBOL.MATRIX ON|OFFTurnstheMatrixsymbology(Code25variant)on/off.

GET/SET SYMBOL.MAXICODE ON|OFFTurnstheMaxiCode

symbologyon/off.

GET/SET SYMBOL.MSI ON|OFFTurnstheMSI

Plesseysymbologyon/off.

GET/SET SYMBOL.PDF417 ON|OFF TurnsthePDF417symbologyon/off.

GET/SET SYMBOL.PLANET ON|OFF TurnsthePLANETsymbologyon/off.

GET/SET SYMBOL.POSTNET ON|OFFTurnsthePOSTNETsymbologyon/off.

GET/SET SYMBOL.4STATE-IMB ON|OFFTurnsthe

IntelligentMailBarcode

symbologyon/off.

GET/SET SYMBOL.4STATE-RMC ON|OFFTurnstheRoyalMailCode

symbologyon/off.

GET/SET SYMBOL.QR ON|OFFTurnstheQRand

MicroQRsymbologies

on/off.

012

Single(notsupported)

Presentation(notsupported)

Manual(default)


GET/SET TRIGGER.TYPE 345

Burst(notsupported)Self(not

supported)Continuous

GET/SET UPC-EAN.EAN13 ON|OFF TurnstheEAN-13symbologyon/off.

GET/SET UPC-EAN.EAN8 ON|OFF TurnstheEAN-8symbologyon/off.

GET/SET UPC-EAN.UPC-A ON|OFF TurnstheUPC-Asymbologyon/off.

GET/SET UPC-EAN.UPC-E ON|OFF TurnstheUPC-Esymbologyon/off.

GET/SET UPC-EAN.UPCE1 ON|OFF TurnstheUPC-E1symbologyon/off.

GET/SET UPC-EAN.SUPPLEMENT

01234

TurnsoffUPCsupplemental

codes(ignored)TurnsonUPCsupplemental

codes(required)Required2digitsupplemental.Required5digitsupplemental.Notrequired.

GET/SET VIBRATION.GOOD ON|OFFSets/getswhethertovibratewhenacodeisread(defaultisON)

Precaut ions

Precaut ions


ObservetheseprecautionswheninstallingtheCognexproduct,toreducetheriskofinjuryorequipmentdamage:

Toreducetheriskofdamageormalfunctionduetoover-voltage,linenoise,electrostaticdischarge(ESD),powersurges,orotherirregularitiesinthepowersupply,routeallcablesandwiresawayfromhigh-voltagepowersources.Changesormodificationsnotexpresslyapprovedbythepartyresponsibleforregulatorycompliancecouldvoidtheuser’sauthoritytooperatetheequipment.Cableshieldingcanbedegradedorcablescanbedamagedorwearoutmorequicklyifaservicelooporbendradiusistighterthan10Xthecablediameter.Thebendradiusmustbeginatleastsixinchesfromtheconnector.Thisdeviceshouldbeusedinaccordancewiththeinstructionsinthismanual.Allspecificationsareforreferencepurposeonlyandmaybechangedwithoutnotice.

cognex mobile barcode sdk for android (v2.3.x)

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