The Android system shows an on-screen keyboard—known as a soft input method—when a text field in your UI receives focus.
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Platform
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Overview
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AppBasics
Introduction
BuildyourfirstappOverviewCreateanAndroidprojectRunyourappBuildasimpleuserinterfaceStartanotheractivity
Appfundamentals
AppresourcesOverviewHandleconfigurationchanges
LocalizationLocalizeyourappTestyourappwithpseudolocalesUnicodeandinternationalizationsupportLanguageandlocaleresolutionComplexXMLresources
ResourcetypesOverviewAnimationColorstatelistDrawableLayoutMenuStringStyleFontMoretypes
AppmanifestfileOverview
Devices
DevicecompatibilityOverviewScreencompatibilityoverviewSupportdifferentpixeldensitiesSupportdisplaycutoutsDeclarerestrictedscreensupport
MultipleAPKsupportOverviewCreatemultipleAPKsfordifferentAPIlevelsCreatemultipleAPKsfordifferentscreensizesCreatemultipleAPKsfordifferentGLtexturesCreatemultipleAPKswithseveraldimensionsSupportdifferentlanguagesandculturesSupportdifferentplatformversionsFiltersonGooglePlay
Tablets,largescreens,andfoldablesGetstartedwithlargescreens
BuildresponsiveUIsSupportdifferentscreensizesNavigationforresponsiveUIsMigrateyourUItoresponsivelayoutsActivityembeddingMulti-windowsupportInputcompatibilityonlargescreens
BuildforfoldablesLearnaboutfoldablesMakeyourappfoldawareTestyourapponfoldables
WearGetstartedPrinciplesofWearOSdevelopmentUpgradetothelatestversionofWearOSWearOSversusmobiledevelopmentSetupJetpackComposeonWearOSUseJetpackComposeonWearOSWearOSdeveloperpathwayOngoingActivitiesWearOSuserinterfaceTilesExposedatatocomplications
GettingstartedCreateandrunawearableappDebugaWearOSappCaptureWearUIscreenshotsAppearinRecentsandAppResume
OverlaysOverviewUsetheWearUIlibraryHandledifferentwatchshapesScreenoptionsCreatelistsNavigationExitfullscreenactivitiesonWearShowconfirmationsPlayingaudioonwearablesWetmodeKeepyourappvisibleonWearAuthenticationStandaloneapp
NotificationsNotificationsonWearOSBridgingoptionsfornotifications
HandlingdataSendandsyncdataonWearOSNetworkaccessandsynconWearOSAccesstheWearableDataLayerTransferassetsSendandreceivemessagesHandledatalayereventsSyncdataitemswiththeDataLayerAPIRequestpermissionsDetectlocation
UserinputPhysicalbuttonsRotaryinputCreateinputmethodeditorsinWearVoice
WatchFaceStudioWatchFaceStudioKeyboardshortcutsManageaWatchFaceStudioprojectCreateawatchfacewithWatchFaceStudioBuildcomplicationsinWatchFaceStudioTagexpressionsLanguagesettingsAlways-oninWatchFaceStudioGyroeffectsBuildanduploadfromWatchFaceStudioTestyourwatchfaceFAQ
HealthservicesOverviewActivedataandexercisePassivedataupdatesUsesyntheticdataprovidersHealthPlatformAPI
DesignIntroductionDesignprinciplesGettingstartedInteractiontypesNotificationsComplicationsTilesOverlaysOngoingactivitiesConfirmationoverlayDisconnectionindicatorsPermissionmessagesSelectioncontrolsLaunchandlatencyNavigationPermissionsSigninHardwarebuttonsColorTypographyIconsDownloads
ComponentsWearMaterialThemingButtonsChipsTogglechipsCardsListsCurvedtextsSwipetodismissScrollindicatorsPickersPageviewersSlidersProgressindicator
CreatingwatchfacesOverviewDesignwatchfacesBuildawatchfaceserviceDrawwatchfacesWatchfacecomplicationsAddingcomplicationstoawatchfaceCreatinginteractivewatchfacesProvideconfigurationactivitiesAddresscommonissuesImproveperformacewithhardwareaccelerationOptimizeperformanceandbatterylifeWearappqualityPackageWearOSappsDistributetoWearOSCreateWearOSappsforChinaWearOSreleasenotes
AndroidTVOverview
BuildTVAppsOverviewGetstartedwithTVappsAndroidXTVlibrariesHandleTVhardwareManageTVcontrollersBuildTVlayoutsOn-screenkeyboardCreateTVnavigationBestpracticesfordrivingengagementonGoogleTV
BuildTVplaybackappsOverviewCreateacatalogbrowserProvideacardviewBuildadetailsviewUseLeanbacktransportcontrolsPlaybackcontrolsonTVDisplayaNowPlayingcardAddaguidedstepIntroducefirst-timeuserstoyourappEnablebackgroundplaybackAudiocapabilitiesManageframerates
HelpusersfindcontentonTVOverview
RecommendTVcontentOverviewChannelsonthehomescreenVideoprogramattributesAudioprogramattributesGameprogramattributes
WatchNextAddprogramsAttributesGuidelinesforappdevelopersGuidelinesforTVprovidersPreviewvideosRecommendationsinAndroidNandearlierMakeTVappssearchableSearchwithinTVApps
BuildTVgamesOverviewUseStreamProtectforlatency-sensitivestreamingapps
BuildTVinputservicesOverviewDevelopaTVinputserviceWorkwithchanneldataManageTVuserinteractionSupporttime-shiftingSupportcontentrecordingTVAppschecklist
TVAccessibilityAccessibilitybestpracticesTalkBackevaluationexamplesAdoptsystemcaptionsettingsCustomviewaccessibilitysupportCustomviewaccessibilitysampleAndroid12DeveloperPreviewforTV
AndroidforCarsOverview
BuildmediaappsforcarsBuildmediaappsforcarsAddsupportforAndroidAutoAddsupportforAndroidAutomotiveOSBuildmessagingappsforAndroidAuto
Buildnavigation,parking,andchargingappsforcarsUsingtheAndroidforCarsAppLibraryBuildparkingandchargingappsforcarsBuildnavigationappsforcarsAddsupportforAndroidAutoTestAndroidappsforcarsGooglePlayservicesNotificationsonAndroidAutomotiveOS
AndroidThingsOverviewPlatformdifferencesGoogleservices
SupportedhardwareOverviewNXPi.MX7DRaspberryPi3
AdvancedsetupOverviewManuallyflashanimageRecoveradeviceConnectingtoWi-Fiwithadb
Buildapps
CreateaThingsappOverviewCreateaprojectConnectthehardwareInteractwithperipheralsIntegrateperipheraldrivers
CommunicatewithwirelessdevicesBluetoothLoWPAN
ConfiguredevicesSettingsUpdates
InteractwithperipheralsOverviewGPIOPWMI2CSPIUARTNativePIOCLItoolIntegratenativecode
Builduser-spacedriversOverviewLocationInputSensorsLoWPANSamples
ManagedevicesOverviewCreateaproductConfigureaproduct
CreateabuildOverviewManageapps
PushanupdateOverviewAutomaticupdatesMonitoranalytics
TermsConsoleTermsofServiceSDKLicenseAgreementAndroidThingsConsole
ChromeOSdevicesOverviewBuildingappsforChromeOSOptimizingAppsforChromeOSPreparingyourdevelopmentenvironmentAppManifestCompatibilityforChromebooksChromeOSDeviceSupportforAppsAppRenderingDifferencesonChromebooksWindowmanagementAdaptingGamesonChromeOSSmoothanimationonChromeOSTestCasesforAndroidAppsonChromeOS
Apparchitecture
Introduction
Guidetoapparchitecture
ArchitectureComponents
UIlayerlibraries
ViewbindingOverviewMigratefromKotlinsyntheticstoviewbinding
DatabindinglibraryOverviewGetstartedLayoutsandbindingexpressionsWorkwithobservabledataobjectsGeneratedbindingclassesBindingadaptersBindlayoutviewstoArchitectureComponentsTwo-waydatabinding
Lifecycle-awarecomponentsHandlelifecyclesViewModelLiveDataSaveUIstatesSavedStatemoduleforViewModelUseKotlincoroutineswithlifecycle-awarecomponents
PagingLibraryOverviewLoadanddisplaypageddataPagefromnetworkanddatabaseTransformdatastreamsManageandpresentloadingstatesTestyourPagingimplementationMigratetoPaging3
Paging2OverviewDisplaypagedlistsLoadpageddata
DatalayerlibrariesDataStore
WorkManagerOverviewGettingStarted
How-ToGuidesDefiningyourWorkRequestsWorkstatesManagingworkObservingintermediateWorkerprogressChainingworktogetherTestingWorkerimplementationIntegrationtestswithWorkManagerDebuggingWorkManager
AdvancedConceptsConfigurationandInitialization
ThreadinginWorkManagerOverviewThreadinginWorkerThreadinginCoroutineWorkerThreadinginRxWorkerThreadinginListenableWorkerSupportforlong-runningworkersMigratingfromFirebaseJobDispatcherMigratingfromGCMNetworkManager
Appentrypoints
ActivitiesIntroductiontoactivitiesTheactivitylifecycleActivitystatechangesTestyouractivitiesTasksandbackstackProcessesandapplifecycleParcelablesandbundlesLoadersRecentsscreenRestrictionsonstartingactivitiesfromthebackground
AppshortcutsOverviewCreateshortcutsAddcapabilitiesManageshortcutsBestpracticesforshortcuts
AppnavigationPrinciplesofnavigationDesignfordifferentformfactorsHandleconfigurationchanges
NavigationcomponentOverviewGettingstartedCreatedestinationsDesignnavigationgraphsNestedgraphsGlobalactionsNavigatetoadestinationConditionalnavigationPassdatabetweendestinationsCreateadeeplinkforadestinationAnimatetransitionsbetweendestinationsUpdateUIcomponentswithNavigationUIKotlinDSLInteractprogrammaticallyNavigatewithfeaturemodulesBestpracticesformulti-moduleprojectsTestnavigationAddnewdestinationtypesMigratetotheNavigationcomponent
FragmentsOverviewCreateafragmentFragmentmanagerFragmenttransactionsAnimatetransitionsbetweenfragmentsFragmentlifecycleSavingstatewithfragmentsCommunicatewithfragmentsWorkingwiththeappbarDisplayingdialogswithDialogFragmentDebugyourfragmentsTestyourfragments
ApplinksOverviewEnablinglinkstoappcontentVerifyapplinksCreateapplinksforinstantappsCreateswipeviewswithtabsusingViewPagerCreateswipeviewswithtabsusingViewPager2Providecustombacknavigation
DependencyinjectionOverviewManualdependencyinjectionDependencyinjectionwithHiltHiltinmulti-moduleappsHiltandJetpackintegrationsHilttestingguideHiltandDaggerannotationscheatsheet
DaggerDaggerbasicsUsingDaggerinAndroidappsUsingDaggerinmulti-moduleapps
AppStartup
Coretopics
AppcompatibilityOverviewCompatibilityframeworktoolsRestrictionsonnon-SDKinterfaces
InteractwithotherappsOverviewSendingtheusertoanotherappGettingaresultfromanactivityAllowingotherappstostartyouractivity
PackagevisibilityOverviewKnowwhichpackagesarevisibleautomaticallyDeclarepackagevisibilityneedsFulfillcommonusecasesTestpackagevisibility
IntentsandintentfiltersOverviewCommonintents
UserinterfaceOverview
LayoutsOverviewBuildaresponsiveUIwithConstraintLayout
AddmotiontoyourlayoutwithMotionLayoutOverviewCarouselwithMotionLayoutMotionLayoutexamples
MotionLayoutXMLreferenceOverviewCreatealistwithRecyclerViewAdvancedRecyclerViewcustomizationCreateacard-basedlayoutCreateatwopanelayout
ImprovinglayoutperformanceOverviewOptimizinglayouthierarchiesRe-usinglayoutswithDelayedloadingofviewsLinearlayoutAdapterviewRelativelayout
CustomviewcomponentsOverviewCreatingacustomviewclassImplementingcustomdrawingMakingtheviewinteractiveOptimizingtheviewDesigningforfoldables
LookandfeelMaterialdesignStylesandthemesDarkthemeRoundedcornersAdaptiveiconsAddafloatingactionbuttonCreateshadowsandclipviews
TextAutosizingTextViewsDownloadablefontsFontsinXML
EmojiSupportmodernemojiEmojicompatibilityMagnifierwidgetSpansButtonsCheckboxesRadiobuttonsTogglebuttonsSpinnersPickersTooltips
NotificationsOverviewCreateanotificationCreateanexpandablenotificationDisplaytime-sensitivenotificationsStartanactivityfromanotificationCreateagroupofnotificationsCreateandmanagenotificationchannelsModifyanotificationBadgeCreateacustomnotification
SplashscreensOverviewMigrateyourexistingsplashscreenConversationsBubbles
AddtheappbarOverviewSetuptheappbarAddandhandleactionsAddanupactionUseactionviewsandactionproviders
ControlthesystemUIvisibilityOverviewDimthesystembarsHidethestatusbarHidethenavigationbarEnablefullscreenmodeRespondtoUIvisibilitychanges
Supportingswipe-to-refreshOverviewAddingswipe-to-refreshtoyourappRespondingtoarefreshgestureToastsoverview
Pop-upmessagesoverviewOverviewBuildanddisplayapop-upmessageAddanactiontoamessageDialogsMenus
SettingsOverviewOrganizeyoursettingsCustomizeyoursettingsUsesavedvaluesBuildahierarchyincodeHandleotherformfactorsPreferencecomponentsandattributes
SearchOverviewCreatingasearchinterfaceAddingrecentquerysuggestionsAddingcustomsuggestionsSearchableconfiguration
AddingsearchfunctionalityOverviewSettingupthesearchinterfaceStoringandsearchingfordataRemainingbackwardcompatibleCopyandpasteDraganddropPicture-in-picturesupport
Creatingbackward-compatibleUIsOverviewAbstractingthenewAPIsProxyingtothenewAPIsCreatinganimplementationwitholderAPIsUsingtheversion-awarecomponentDevicecontrol
HomechannelsformobileappsOverviewMediaHomeBooksMediaHomeVideo
AppwidgetsOverviewCreateasimplewidgetEnhanceyourwidgetCreateanadvancedwidgetUsewidgetcollectionsProvideflexiblewidgetlayoutsEnablewidgetconfigurationBuildanappwidgethost
Animations&transitionsOverviewIntroductiontoanimationsPropertyanimationoverviewAnimatedrawablegraphicsRevealorhideaviewusinganimationMoveaviewusinganimationMoveaviewusingaflinganimationEnlargeaviewusingazoomanimationAnimatemovementusingspringphysicsAutoanimatelayoutupdatesAnimatelayoutchangesusingatransitionCreateacustomtransitionanimationStartanactivityusingananimationSlidebetweenfragmentsusingViewPagerSlidebetweenfragmentsusingViewPager2MigratefromViewPagertoViewPager2Additionalresources
Images&graphicsOverviewDrawablesoverviewVectordrawablesoverviewHandlingbitmapsSelectingcolorswiththepaletteAPIReducingimagedownloadsizesHardwareaccelerationOpenGLES
DisplayinggraphicswithOpenGLESOverviewBuildinganOpenGLESenvironmentDefiningshapesDrawingshapesApplyingprojectionandcameraviewsAddingmotionRespondingtotouchevents
RenderingOverviewReducingoverdrawPerformanceandviewhierarchiesAnalyzingwithprofileGPUrenderingEnhancinggraphicswithwidecolorcontent
Audio&videoAudio&videooverviewMediacontrolsSupportedmediaformatsMediacodecs
MediaapparchitectureMediaapparchitectureoverviewUsingamediasession
BuildinganaudioappAudioappoverviewBuildingamediabrowserserviceBuildingamediabrowserclientMediasessioncallbacksUsingthemediacontrollertestapp
BuildingavideoappVideoappoverviewBuildingavideoplayeractivityMediasessioncallbacksCompatiblemediatranscodingRespondingtomediabuttonsHandlingchangesinaudiooutputManageaudiofocus
TheGoogleAssistantTheGoogleAssistantandmediaappsMediaappsonGoogleAssistantdrivingmode
RoutingbetweendevicesRoutingoverviewMediaRouteroverviewMediaRouteProvideroverviewControlamplitudewithVolumeShaperMediaPlayeroverviewMediaRecorderoverviewExoPlayerSharingaudioinputCapturevideoandaudioplaybackFramerateBestpracticesforsharingvideoAdditionalResourcesforMedia
ServicesOverviewForegroundservicesBoundservicesAIDLoverview
BackgroundtasksOverviewBackgroundthreadsBackgroundoptimizations
BroadcastsOverviewImplicitBroadcastExceptions
ManagedeviceawakestateOverviewKeepthedeviceawakeSchedulealarms
PermissionsOverviewEvaluatewhetheryourappneedspermissionsDeclareapppermissionsRequestapppermissionsExplainaccesstomoresensitiveinformationApppermissionsbestpracticesPermissionsusedonlyindefaulthandlersRestrictinteractionswithotherappsDefinecustompermissions
Appdata&filesOverviewStorageoverviewSavetoapp-specificstorage
SavetosharedstorageOverviewMediaDocumentsandotherfilesDatasetsManageallfilesonastoragedeviceSavekey-valuedata
SavedatainalocaldatabaseOverviewDefinedatausingentitiesAccessdatausingDAOsDefinerelationshipsbetweenobjectsWriteasynchronousDAOqueriesCreateviewsintoadatabasePrepopulateyourdatabaseMigrateyourdatabaseTestanddebugyourdatabaseReferencecomplexdataMigratefromSQLitetoRoomSavedatausingSQLiteStorageusecasesandbestpractices
SharingsimpledataOverviewSendingsimpledatatootherappsReceivingsimpledatafromotherapps
SharingfilesOverviewSettingupfilesharingSharingafileRequestingasharedfileRetrievingfileinformation
SharingfileswithNFCOverviewSendingfilestoanotherdeviceReceivingfilesfromanotherdevice
PrintingfilesOverviewPrintingphotosPrintingHTMLdocumentsPrintingcustomdocuments
ContentprovidersOverviewContentproviderbasicsCreatingacontentproviderOpenfilesusingstorageaccessframeworkCreateacustomdocumentproviderAppinstalllocation
Userdata&identityOverviewAddsign-inworkflowShowabiometricauthenticationdialog
AutofillframeworkOverviewOptimizeyourappforautofillBuildautofillservicesIntegrateautofillwithkeyboardsIdentifydeveloper-ownedappsReviewhowyourappcollectsandsharesuserdataAuditdataaccessGetauser-resettableadvertisingIDCalendarprovideroverview
ContactsproviderOverviewRetrievingalistofcontactsRetrievingdetailsforacontactModifyingcontactsusingintentsDisplayingthequickcontactbadgeAccounttransfer
DatabackupOverviewBackupuserdataBackupkey-valuepairsTestbackupandrestoreBestpracticesforuniqueidentifiers
RememberandauthenticateusersOverviewRememberyouruserAuthenticatetoOAuth2servicesCreateacustomaccounttype
UserlocationOverviewRequestlocationpermissionsGetthelastknownlocationChangelocationsettingsRequestlocationupdatesAccesslocationinthebackgroundCreateandmonitorgeofencesDetectwhenusersstartanactivityOptimizelocationforbatteryTestlocationworkflowsMigratetolocationandcontextAPIsAddmaps
Touch&inputOverviewInputevents
UsingtouchgesturesOverviewDetectcommongesturesTracktouchandpointermovementsAnimateascrollgestureSupportnavigationgesturesImplementedge-to-edgeHandlemulti-touchgesturesDragandscaleManagetoucheventsinaViewGroup
HandlingkeyboardinputOverviewSpecifyingtheinputmethodtypeHandlinginputmethodvisibilitySupportingkeyboardnavigationHandlingkeyboardactions
SupportinggamecontrollersOverviewHandlingcontrolleractionsSupportingcontrollersacrossAndroidversionsSupportingmultiplegamecontrollers
InputmethodeditorsCreatinganinputmethodImagekeyboardReceiverichcontentSpellingchecker
CameraXOverviewCameraXarchitectureConfigurationPreviewImageanalysisImagecaptureVideocaptureExtensionsAPITransformoutputUsecaserotationsCameraXdevices
Camera2OverviewCameracapturesessionsandrequestsCameraenumerationUsemultiplecamerastreamssimultaneouslyCamerapreviewonlargescreensMulti-CameraAPIExtensionsAPI
CameraOverviewTakingphotosRecordingvideosControllingthecameraCameraAPI
SensorsOverviewSensorsoverviewMotionsensorsPositionsensorsEnvironmentsensorsRawGNSSmeasurements
ConnectivityOverview
PerformingnetworkoperationsOverviewConnecttothenetworkManagenetworkusageReadingnetworkstateOptimizenetworkdatausageParseXMLdata
TransmitnetworkdatausingVolleyOverviewSendasimplerequestSetupRequestQueueMakeastandardrequestImplementacustomrequest
PerformnetworkoperationsusingCronetOverviewSendasimplerequestCronetrequestlifecycle
Reference
org.chromium.netOverviewCallbackException
CronetEngineOverview
CronetEngine.BuilderOverviewLibraryLoaderCronetExceptionInlineExecutionProhibitedExceptionNetworkExceptionQuicExceptionUploadDataProviderUploadDataProvidersUploadDataSink
UrlRequestOverviewBuilderCallbackStatusStatusListener
UrlResponseInfoOverviewHeaderBlockEnhanceyourappswith5GBuildclient-serverapplicationswithgRPC
TransferringdatawithoutdrainingthebatteryOverviewOptimizedownloadsforefficientnetworkaccessMinimizetheeffectofregularupdatesAvoidredundantdownloadsModifypatternsbasedontheconnectivitytype
ReducenetworkbatterydrainOverviewCollectingnetworktrafficdataAnalyzingdatatrafficOptimizeuser-initiatednetworkuseOptimizeapp-initiatednetworkuseOptimizeserver-initiatednetworkuseOptimizinggeneralnetworkuse
TransferdatausingSyncAdaptersOverviewCreateaStubAuthenticatorCreateaStubContentProviderCreateaSyncAdapterRunaSyncAdapter
BluetoothOverviewSetupBluetoothFindBluetoothdevicesConnectBluetoothdevicesTransferBluetoothdataBluetoothpermissionsBluetoothprofilesCompaniondevicepairing
BluetoothLowEnergyOverviewFindBLEdevicesConnecttoaGATTserverTransferBLEdata
NFCOverviewNFCbasicsAdvancedNFCHost-basedcardemulationoverview
TelecomOverviewBuildacallingappPreventcallerIDspoofingTelephonyIDs
Wi-FiWi-FiscanningoverviewWi-Fipeer-to-peerWi-FiAwareoverviewWi-FilocationwithRTTLocalOnlyHotspot
Wi-FiinfrastructureWi-FiinfrastructureoverviewWi-FisuggestionAPIforinternetconnectivityWi-FiNetworkRequestAPIforpeer-to-peerconnectivityPasspointSavenetworksandPasspointconfigurations
USBOverviewAccessoryoverviewHostoverviewVPNSessioninitiationprotocoloverview
DiscoverandconnectOverviewUsenetworkservicediscoveryCreateP2PconnectionswithWi-FiUseWi-FiP2PforservicediscoveryWi-FiEasyConnectOpenMobileAPIreadersupport
RenderscriptOverviewAdvancedRenderScriptMigratefromRenderScript
RuntimeAPIreferenceOverviewNumericaltypesObjecttypesConversionfunctionsMathematicalconstantsandfunctionsVectormathfunctionsMatrixfunctionsQuaternionfunctionsAtomicupdatefunctionsTimefunctionsandtypesAllocationdataaccessfunctionsObjectcharacteristicsfunctionsKernelinvocationfunctionsandtypesInput/outputfunctionsDebuggingfunctionsGraphicsfunctionsandtypesIndex
Web-basedcontentOverviewBuildingwebappsinWebViewManagingWebViewobjectsLoadlocalcontentDarkenwebcontentUserprivacyinWebViewcrashreportingMigratingtoWebViewinAndroid4.4SupportingdifferentscreensinwebappsDebuggingwebappsBestpracticesforwebapps
AndroidAppBundlesOverviewConfigurethebasemoduleBuildandtestyourappbundleAddcodetransparencyTheappbundleformatFrequentlyaskedquestions
GooglePlayGooglePlayBillingPlayCoreLibrary
PlayAssetDeliveryOverviewIntegrateassetdelivery(Kotlin&Java)Integrateassetdelivery(native)Integrateassetdelivery(Unity)TargettexturecompressionformatsTestassetdelivery
PlayFeatureDeliveryOverviewConfigureinstall-timedeliveryConfigureconditionaldeliveryConfigureon-demanddeliveryOn-demanddeliverybestpracticesConfigureinstantdeliveryAdditionalresources
In-appreviewsOverviewIntegrateusingKotlinorJavaIntegrateusingnativecodeIntegrateusingUnityTestin-appreviews
In-appupdatesOverviewSupportin-appupdates(KotlinorJava)Supportin-appupdates(Native)Supportin-appupdates(Unity)Testin-appupdates
GooglePlayInstantOverviewofGooglePlayInstant
GetstartedwithinstantappsCreateaninstant-enabledappbundleUXbestpracticesforapps
GetstartedwithinstantgamesOverviewUnitypluginUXbestpracticesforgamesMigratetoAndroidAppBundlesImplementclouddeliveryofassetsSupportGooglePlayGamesServicesInstantPlaygamesInstantPlaygameschecklistReducethesizeofyourinstantapporgameAddadstoyourinstantapporgameProvidemultipleentrypoints
IntegratewithFirebaseAddGoogleAnalyticsforFirebasetoyourinstantappUseFirebaseDynamicLinkswithinstantappsTechnicalrequirementschecklistGooglePlayInstantpolicy
ResourcesReferenceCodesamplesSDKreleasenotesInstantAppIntents
SupportKnownissuesStackOverflowPlayDeveloperAPI
PlayInstallReferrerOverview
PlayInstallReferrerLibraryOverviewReferenceReleasenotesPlayInstallReferrerAPIPlayIntegrityAPI
ApplicationLicensingOverviewLicensingOverviewSettingUpforLicensingAddingServer-SideVerificationAddingClient-SideVerificationLicensingReferenceAPKExpansionFiles
AppActions
SlicesOverviewGettingStartedSlicetemplates
On-devicesearch
Games
ToolsAndroidStudio
AndroidGameDevelopmentExtensionforVisualStudioOverviewQuickstartConfigureaprojectDebuggerMeasureappperformanceSamplesReleasenotesAndroidNDK
AndroidGPUInspectorOverviewQuickstart
SystemprofilingOverviewViewasystemprofile
AnalyzeasystemprofileFrameprocessingtimesMemoryefficiencyTexturememorybandwidthusageVertexmemorybandwidthusageThreadscheduling
GPUperformancecountersArmMaliQualcommAdrenoImaginationPowerVR
FrameprofilingOverview
AnalyzeaframeprofileMostexpensiverenderpassesVertexformatsShaderperformance
FrameProfilerUIPerformancepaneCommandspaneFramebufferpaneGeometrypaneReportpaneShaderpaneMemorypaneStatepaneTexturespaneTexturepanePipelineviewpaneSupportedVulkanextensionsTroubleshoot
CustomizeorportgameenginesOverview
GettingstartedIntegrateGameActivityConfiguregraphicsUnderstandAndroidgameloops
ProcessinputeventsAddtouchsupportSupporttextinput
SupportgamecontrollersOverviewUsethegamecontrollerlibraryUsecustomcontrollerdevicemappingsAddmousesupportSupportsensorinput
AchieveproperframepacingOverview
FramepacinginOpenGLESIntegrateUpdateyourbuildsettingsAddframepacingfunctionsVerifyframepacingimprovement
FramepacinginVulkanIntegrateUpdateyourbuildsettingsAddframepacingfunctionsVerifyframepacingimprovementReference
IntegrateAndroidPerformanceTunerOverviewRunthedemoappEnabletheAPIUpdateyourbuildsettingsDefineannotations,fidelityparameters,andsettingsAddframetimingfunctionsAddloadingtimerecordingfunctionsValidate,package,andpublishtheAPKTroubleshootcommonerrorsAdvancedusageReference
OutputaudioOverviewUpdatebuildsettingsUseOboeCodesamplesFullOboeguide
ManagememoryOverviewDebugnativememoryuseDeliverassetsDetectanddiagnosecrashes
UseprebuiltorturnkeygameenginesOverview
DevelopwithDefoldInstallandconfigureprojectsforAndroidSupportmultipleformfactorsandscreensizesExporttoAndroid
DevelopwithGodotInstallandconfigureprojectsforAndroidGodotrendereroptionsSupportmultipleformfactorsandscreensizesExporttoAndroid
DevelopwithUnityOverviewCreateanAndroidAppBundlewithUnityIntegratePlayAssetDeliveryUnityLightinginMobileGames
UseAndroidPerformanceTunerOverviewEnabletheAPIIntegratethepluginInitializethelibraryandverifyoperationDefineannotations,fidelityparameters,andqualitylevelsAddloadingtimerecordingfunctionsRunthemonitorappReviewandpublishTroubleshootcommonerrorsReferenceDevelopwithUnrealRequestinguserpermissionsSecureyourgame
Gamebestpractices
MaximizedeviceavailabilitySupport64-bitarchitecturesDevelopgamesforallscreensSign-in,savegames,andmorewithPlayGamesServices
ArtassetsGeometrybestpractices
OpenGLandVulkanDeviceorientationefficientlyinVulkanVertexdatamanagement
GameModeOverviewOptimizewithGameModeAPIGameModeinterventions
OptimizeCPU,memory,andgraphicstoolsAndroidPerformanceTuner
GuidesImprovegameperformanceReducegamesize
DistributeOverviewReleasewithGooglePlayInstantPlayasyoudownload
Bestpractices
TestingOverviewFundamentalsoftestingSetupproject
BuildingeffectiveunittestsOverviewBuildinglocalunittestsBuildinginstrumentedunittests
AutomatingUItestsOverviewTestingUIforasingleappTestingUIformultipleapps
TestingappcomponentintegrationsOverviewTestingyourserviceTestingyourcontentproviderTestingUIperformance
EspressoOverviewSetupinstructionsBasicsRecipesMultiprocessAccessibilitycheckingListsIntentsWebIdlingresourceCheatsheetAdditionalresourcesUIAutomatorAppCrawlerJUnit4RulesAndroidJUnitRunnerReleasenotesAdditionalresources
PerformanceOverviewPerformanceclass
AndroidVitalsOverviewStuckPartialWakeLocksExcessiveWakeupsExcessiveBackgroundWi-FiScansExcessiveBackgroundNetworkUsageANRsCrashesSlowRenderingFrozenFramesPermissionDenialsAppStartupTimeAppStandbyBucketsAppHibernationProcessesandThreadsOverviewBetterPerformancethroughThreading
OptimizingforBatteryLifeOverviewOptimizeforDozeandAppStandbyMonitorthebatterylevelandchargingstateMonitorconnectivitystatusandconnectionmeteringDetermineandmonitorthedockingstateandtypePowermanagementrestrictionsProfilebatteryusagewithBatterystatsandBatteryHistorianAnalyzepowerusewithBatteryHistorianTestingpower-relatedissuesReduceyourappsize
ManagememoryOverviewofMemoryManagemementMemoryAllocationamongProcessesManageYourApp'sMemory
SystemtracingOverviewCaptureatracefromthecommandlineCaptureatraceonadeviceNavigateareportDefinecustomeventsCustomtraceeventsinnativecodeInspectGPUrenderingDesigningforSeamlessnessKeepingYourAppResponsivePerformanceTipsSMPPrimerforAndroidVerifyingAppBehaviorontheAndroidRuntime(ART)
AccessibilityOverview
BuildandtestappsforaccessibilityMakeappsmoreaccessiblePrinciplesforimprovingappaccessibilityTestyourapp'saccessibility
AdvancedtopicsMakecustomviewsmoreaccessibleCreateyourownaccessibilityserviceAdditionalresources
PrivacyPrivacybestpractices
SecurityAppsecuritybestpracticesSecuritytipsSecuritywithdataSecuritywithdataacrossadditionalAndroidversionsSecuritywithHTTPSandSSLNetworksecurityconfigurationUpdatingyoursecurityprovidertoprotectagainstSSLexploits
ProtectingagainstsecuritythreatswithSafetyNetOverviewSafetyNetAttestationAPISafetyNetSafeBrowsingAPISafetyNetreCAPTCHAAPISafetyNetVerifyAppsAPICryptographyAndroidKeystoreSystemVerifyinghardware-backedkeypairswithkeyattestationAndroidProtectedConfirmationSupportingDirectBootRunningembeddedDEXcodeAppsecurityimprovementprogram
BuildforBillionsOverviewConnectivityDevicecapabilityDatacostBatteryconsumptionUIandcontent
BuildforEnterpriseOverviewDeveloperguideWorkprofilesSetupmanagedconfigurations
AppfeedbackSendappfeedbacktoEMMsTestappfeedbackWorkcontactsDevicemanagementpolicies
DevicemanagementOverviewBuildadevicepolicycontroller
DedicateddevicesOverviewLocktaskmodeMultipleusersCookbookDevicecontrolNetworkingandtelephonySecuritySystemupdatesNetworkactivitylogging
AndroidversionsOverviewAndroid12Android11Android10Android9Android8.0Android7.0Deviceadministration
AndroidDevelopers
Docs
Guides
Handlekeyboardinput
TheAndroidsystemshowsanon-screenkeyboard—knownasa
softinputmethod—whenatextfieldinyourUIreceivesfocus.
Toprovidethebestuserexperience,youcanspecifycharacteristics
aboutthetypeofinputyouexpect(suchas
whetherit'saphonenumberoremailaddress)andhowtheinputmethodshouldbehave(suchas
whetheritperformsauto-correctforspellingmistakes).
Inadditiontotheon-screeninputmethods,Androidalsosupportshardwarekeyboards,soit's
importantthatyourappoptimizeitsuserexperienceforinteractionthatmightoccur
throughanattachedkeyboard.
Thesetopicsandmorearediscussedinthefollowinglessons.
Lessons
Specifytheinputmethodtype
Learnhowtoshowcertainsoftinputmethods,suchasthosedesignedforphonenumbers,web
addresses,orotherformats.Alsolearnhowtospecifycharacteristicssuch
asspellingsuggestionbehaviorandactionbuttonssuchasDoneorNext.
Handleinputmethodvisibility
Learnhowtospecifywhentoshowthesoftinputmethodandhow
yourlayoutshouldadjusttothereducedscreenspace.
Supportkeyboardnavigation
Learnhowtoverifythatuserscannavigateyourappusingakeyboard
andhowtomakeanynecessarychangestothenavigationorder.
Handlekeyboardactions
Learnhowtoresponddirectlytokeyboardinputforuseractions.
ContentandcodesamplesonthispagearesubjecttothelicensesdescribedintheContentLicense.JavaisaregisteredtrademarkofOracleand/oritsaffiliates.
Lastupdated2020-11-18UTC.
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