第1題WhatoperatingsystemistheunderlyingAndroidbasedon?ALinuxBWindowsCMacOSDUnix第2題ThecharacteristicsoftheAndroidsystemarenotincludedAOpensourceBBasedonLinuxCFormobilephonedevicesonlyDYoucandevelopapplicationswithJava第3題WhatlayersdoesAndroid'sarchitectureinclude?AHardwareAbstractionLayer(HAL)BLinuxKernelCApplicationDApplicationFramework正確答案：ABCD第4題ThecommondevelopmentlanguagesforAndroidapplicationdevelopmentareAJavaBKotlinCPythonDPHP正確答案：AB第1題TheAndroidSDKintheAndroiddevelopmentenvironmentreferstoAJavaruntimeBAndroidvirtualmachineCAndroidsoftwaredevelopmentpackageDJavavirtualmachine第2題TheofficialrecommendeddevelopmentenvironmentforAndroidapplicationsisAEclipseBAndroidStudioCVisualStudioDKeilQuizofTheFirstAndroidApplication第1題Inwhichdirectoryistheconstantstring.xmlplacedintheAndroidproject?Ares/layoutBres/valuesCassetsDlayout第2題AndroidManifest.xmlisAJavasourcecodefileBInventoryfilesandconfigurationfilesofthewholeapplicationCApplicationBuildScriptDLayoutfile第3題InAndroidprojects,theactivity_main.xmlfileisgenerallyAProfilesBJavasourcecodefileCLayoutfileDBuildthescript第4題IntheAndroidproject,build.gradleisgenerallyALayoutfileBJavasourcecodeCConfigurationfileDApplicationbuildscriptQuizofAndroidProgramDebugging第1題Intheandroidprogram,whatlevelofloginformationisLog.w()usedtooutput?ADebugBWarningCErrorDCommon第2題ThefunctionofLog.v(Stringtag,Stringmsg)methodisAOutputredundantinformationBOutputerrormessageCOutputdebugginginformationDOutputordinaryinformation第3題ThefunctionofLog.e(Stringtag,Stringmsg)methodisAOutputredundantinformationBOutputordinaryinformationCOutputerrormessageDOutputwarningmessage第4題Whichofthefollowinglogshasthehighestlevel?ADEBUGBWARNCINFODERROR第5題?DeviceFileExplorerisafilebrowserforAndroiddevices.ItsfunctionsincludeACreatenewfilesandfoldersBDownloadthefileCUploadDSynchronize正確答案：DCBA第6題ThetypesofLogcatinformationareAWarningmessageBErrorinformationCRedundantinformationDDebugginginformation正確答案：ABCDQuizofLayout第1題ThetypeofconstraintthatdoesnotbelongtotheconstraintlayoutisALinearconstraintBRelativepositioningCChainconstraintDCentersandtendencies第2題ThechainconstraintmodeintheconstraintlayoutdoesnotincludeASpreadoutsideBWeightedCPackedDSpreadinside第3題TherearemanylayoutsinAndroid,whichareusedtoaccommodatesub-controlsandsub-layouts,whichareinheritedfromAViewGroupBLayoutCContainerDLinerLayout第4題ThefollowingstatementiswrongAAbsoluteLayoutislaidoutintheformofatable.BLinearLayoutisalineararrangementarrangedhorizontallyorvertically.CRelativeLayoutisarrangedaccordingtorelativeposition.DFrameLayoutisablankareapre-bookedonthescreen,whichcanfillsomeViewelementsintoit.第5題UnderwhichdirectoryisthelayoutfileintheAndroidprojectAres/layoutBres/valueCassetsDres/drawable第6題ThecommonlayoutinandroidisAFrameLayout,LinenarLayout,ConstraintLayout,TableLayoutBActivity,Service,BroadCast,ContentProvideCFlowLayout,BorderLayout,GridLayout,CardLayoutDBroadcast,Linenarlayout,Relativelayout,ContentProvide第7題ThefollowingdoesnotbelongtotheandroidlayoutABorderLayoutBFrameLayoutCLinearLayoutDTableLayout第8題IfyouuseLinearLayouttoachieveverticalarrangementofcomponents,whatattributesshouldbeaddedinxmltoset?

Aandroid:orientation="vertical"Bandroid:vertical="true"Candroid:orientation="horizontal"Dandroid:horizontal="true"ProgrammingAssignment:designingpersonalizedbusinesscards第1題QuizofSimpleViews第1題Buttonisabuttonusedtorespondtotheuser'sclickevent.

第2題CheckBoxisamulti-selectbuttonandcannotbeusedalone.

第3題ImageViewcanonlyloadpictureslocally.

第4題RadioButtonisaradiobuttonthatneedstobeusedinconjunctionwithRadioGrouptoprovidetwoormoremutuallyexclusiveoptions.

第5題WhichofthefollowingattributesisusedtorestricttheEditTextinputtype?AinputTypeBkeyboardCtextDSrc第6題WhichofthefollowingViewscanbeusedtodisplayprogressAProgressBarBEditTextCTextViewDButton第7題TherearemanyViewsinAndroid,allofwhichareinheritedfrom()withoutexception.AViewBControlCWindowDTextView第8題AfterToastiscreated,whichofthefollowingmethodsneedstobecalledatthistime?AshowBmakeTextCcreateDview第9題IfweneedtocapturetheeventsofaView,weneedtocreate()fortheView.AListenerBAttributeCWayDEngineering第10題WhichofthefollowingViewisusedtodisplaypictures?

AImageViewBTextViewCEditTextDButtonProgrammingAssignment:Designregistrationpage第1題QuizofActivity第1題WhenIntentpassesdata,whichofthefollowingdatatypescanbepassedASerializableBCharsequenceCParcelableDBundle正確答案：ABCD第2題ThemethodsthatneedtobecalledwhenActivityisfirstcreatedareAOnResume()BOnCreate()COnStart()DOnStop()正確答案：ABC第3題IntentcanbedividedintoAExplicitIntentBImplicitIntentCActionIntentDDataIntent正確答案：AB第4題InthelifecycleofActivity,whatstatewillActivitybewhenpartofitisoverwrittenbyanAlertDialog?ASuspendBExerciseCStopDDestroy第5題WhichofthefollowingdoesnotbelongtotheactivitylifecyclemethodAonInit()BonCreate()ConDestroy()DonResume()第6題ThefollowingarenotonActivityResult()methodparametersAresultBrequestCodeCresultCodeDData第7題Amongthefollowingoptions,theexecutionmethodwhenActivitygetsthefocusisAonResumeBonStartConPauseDonDestroy第8題ThefollowingisthewrongdescriptionofActivity'slifecyclemethodAIntheonResumestage,userscannotinteractwithActivity.BIntheOnstopstage,theoriginalActivitybecameinvisibleandwasoverwrittenbythenextActivity.CIntheonDestorystage,thisisthelastmethodcalledbeforeActivitywaskilled.DOnPausestage,atthisstage,itisvisiblebutnotinteractive.第9題ActivitygenerallyoverloadsthosemethodstomaintainitslifecycleAonCreate(),onStart(),onDestory(),onRestart(),onResume(),onPause(),onStop()BonCreateView(),onStart(),onDestory(),onRestart(),onResume(),onPause(),onStop()ConCreateMenu(),onStart(),onDestory(),onRestart(),onResume(),onPause()DonStart(),onRestart(),onResume(),onPause(),onStop(),onEed()第10題ExitActivitytosavetheoperationofsomeresourcesandstates,whichfunctionofthelifecyclecanbeperformedAonPauseBonCreateConResumeDonStart第11題Whatisthefirstmethodthatneedstobeexecutedintheactivitylifecycle?

AonCreateBonStartConReStartDonResume第12題ThefollowingfunctionsofIntentinAndroidareAAchievedatasharingbetweenapplicationsBItcanswitchbetweeninterfaces,containactionandactiondata,andconnectthelinksofthefourmajorcomponents.CItisalonglifecycle.Aprogramwithoutauserinterfacecankeeptheapplicationrunninginthebackgroundwithoutdisappearingbecauseofswitchingpages.DDealwiththeoverallworkofanapplicationProgrammingAssignment:Confirmationofregistrationinformation第1題QuizofAndroidThread第1題NetworkconnectionscanbeprocessedinAndroid'sUIthread.

第2題ThemainthreadofAndroidapplicationsismainlyresponsibleforhandlingUI-relatedevents.

第3題IntheHandlermechanism,Messageindicatestheinformationcarried.第4題RegardingHandlerinAndroid,thefollowingstatementiswrong(

)Apost()isthemethodtogetmessages.BobtainMessage()isamethodtogetmessages.CsendMessage()isamethodtosendmessages.DhandleMessage()isthemethodtodealwithmessages.第5題WhendevelopingAndroidapplications,theprincipleofthesingle-threadedmodelreferstoADon'tblockUIthreads.BEnsurethatonlyAndroidUIcontrolsareaccessedintheUIthread.COperationsrelatedtoUIupdatescanbeputintheUIthread,includingbackgrounddatadownload.DTrytocompletealloperationsintheUIthread.正確答案：ABQuizofAdvancedViews第1題RecyclerViewcanachieveahorizontallisteffect.

第2題ThedataoftheListViewisloadedthroughtheadapter.第3題ThecorrectstatementaboutRecyclerViewisARecyclerViewcannotsetclickevents.BRecyclerViewentriescannotsetclickevents.CTheRecyclerViewusestheRecyclerView.Adapteradapter.DRecyclerViewismorepowerfulthanListView.正確答案：CD第4題ThewrongstatementaboutListViewisAListViewcannotsetclickevents.BListViewentriescannotsetclickevents.CWhenthedataexceedsthedisplayrange,ListViewautomaticallyhasscrollablefeatures.DListViewcanalsodisplaydatacontentwithoutsettingAdapter.正確答案：ABD第5題Whichofthefollowingclassesisusedtoconstructarraytypedata?AArrayAdapterBSimpleAdapterCAdapterDCursorAdapter第6題Use()whenListViewisboundtomultiplevaluesofanarrayorListcollection.AArrayAdapterBSimpleAdapterCSimpleCursorAdapterDBaseAdapter第7題ListViewisacommonlyused()typeView.AListBButtonCPictureDThedrop-downlistQuizofDatastorage第1題ThetransactionoperationofSQLitedatabasesatisfiesatomicity,consistency,isolationandpersistence.

第2題Theupdate()methodoftheSQLiteDatabaseclassisusedtodeletethedatainthedatabasetable.

第3題ThefilestoragemethodinAndroidisdividedintointernalstorageandexternalstorage.

第4題SQLiteisalightweightdatabasethatcomeswithAndroid,whichsupportsbasicSQLsyntax.

第5題InthefollowingcodethatinitializesSharedPreferences,thecorrectoneisASharedPreferencessp=newSharedPreferences();BSharedPreferencessp=SharedPreferences.getDefault();CSharedPreferencessp=SharedPreferences.Factory();DSharedPreferencessp=getSharedPreferences();第6題InthefollowingdescriptionoftheSQLitedatabase,Whichoneiswrong(

)ATheSqliteOpenHelperclasshasthefunctionofcreatingadatabaseandupdatingthedatabaseversion.BTheSqliteDatabaseclassisusedtooperatethedatabase.CEverytimethegetWritableDatabasemethodofSqliteDatabaseiscalled,theonCreate()methodofSqliteOpenHelperisexecuted.DWhenthedatabaseversionchanges,SqliteOpenHelper'sonUpgrade()methodwillbecalledtoupdatethedatabase.第7題WhenAndroidqueriesthetablesofthedatabase,itwillusethe()methodintheSQLiteDatabaseclass.Ainsert()BexecSQL()Cquery()Dupdata()第8題Inthefollowingmethods,sharePreferencesobtainsitseditorby(

).AgetEdit()Bedit()CsetEdit()DgetSharedPreferences()第9題Amongthefollowingoptions,thefileoperationmodeparameterthatdoesnotbelongtothegetSharedPreferencesmethodis(

).AContext.MODE_PRIVATEBContext.MODE_PUBLICCContext.MODE_WORLD_READABLEDContext.MODE_WORLD_WRITEABLE第10題InthefollowingdescriptionoftheSharedPreferencesaccessfile,Whichoneiswrong().AItisamobilestoragesolution.BSharedPreferencesdealswithkey-valuepairs.CThepathtoreadxmlis/sdcard/shared_prefsDThesavingformatofthetextisxml.第11題Thedatastoragemethodofandroidis()AContentProviderBSharedPreferenceCSQLiteDAlloftheaboveProgrammingAssignment:Savingregistrationinformation第1題QuizofBluetoothcommunication第1題BluetoothSocketismainlyresponsibleforBluetoothconnection,readingandwritingdata.

第2題Youcanusethelow-powerBluetoothAPItoconnectclassicBluetoothdevices.第3題Bluetoothcommunicationiswidelyusedintheconnectionbetweenmobileappsandsmarthardwareduetoitslowcost,lowpowerconsumptionandlongdistance.

第4題Speechrecognitiontechnologyisakindofhuman-computerinteractiontechnology.

第5題Speechrecognitiontechnology,alsoknownasAutomaticSpeechRecognition(ASR),isatechnologythatallowsmachinestoconvertspeechsignalsintocorrespondingtextorcommandsthroughrecognitionandunderstandingprocesses.

第6題HuaweiHiAIcanbeusedonanydeviceaboveAndroid8.0.

第7題Huawei'svoicerecognitionmethodtoobtainrecognitionresultsis()AonResults()BonPartialResults()ConEnd()DonEvent()正確答案：AB第8題ThewaytosendandreceivedatainAndroidclassicBluetoothis()Aread()Bwrite()Csend()Dreceive()正確答案：AB第9題ThepermissionsthatgenerallyneedtobeaddedforAndroidclassicBluetoothcommunicationare()Aandroid.permission.BLUETOOTHBandroid.permission.BLUETOOTH_ADMINCandroid.permission.INTERNETDandroid.permission.WRITE_EXTERNAL_STORAGE正確答案：AB第10題ThewaytocancelspeechrecognitioninHuawei'svoicerecognitionAPIis()Acancel()BstopListening()Cdestroy()DonEnd()第11題ThebroadcastofBluetoothdevicesfoundinAndroidis()ABluetoothDevice.ACTION_FOUNDBBluetoothAdapter.ACTION_DISCOVERY_STARTEDCBluetoothDevice.ACTION_DISCOVERY_STARTEDDBluetoothAdapter.ACTION_FOUNDQuizofSmarthome第1題TCPisaconnectionlesscommunicationprotocol.

第2題WhatparametersdoestheTCPclientneedtoconnecttotheserver?AIPaddressBPortnumberCDNSaddressDMACaddress正確答案：AB第3題Smarthomesystemsinclude()AHomeenvironmentcontrolsystemBHomewiringsystemCHomenetworksystemDHomesecuritysystem正確答案：ABCD第4題Smarthomecanbedividedinto()accordingtotechnicalclassification.ABussystemtechnologyBWirelesscommunicationtechnologycategoryCPowercarriertechnologycategoryDBroadc