Jetpack Compose Reference

ui

Objects

AbsoluteAlignment
AndroidComposeUiFlags
ComposeUiFlags
FocusRequester.Companion.FocusRequesterFactory
SemanticsActions
SemanticsProperties
SemanticsPropertiesAndroid
VectorProperty.Fill
VectorProperty.FillAlpha
VectorProperty.PathData
VectorProperty.PivotX
VectorProperty.PivotY
VectorProperty.Rotation
VectorProperty.ScaleX
VectorProperty.ScaleY
VectorProperty.Stroke
VectorProperty.StrokeAlpha
VectorProperty.StrokeLineWidth
VectorProperty.TranslateX
VectorProperty.TranslateY
VectorProperty.TrimPathEnd
VectorProperty.TrimPathOffset
VectorProperty.TrimPathStart
ViewCompositionStrategy.DisposeOnDetachedFromWindow
ViewCompositionStrategy.DisposeOnDetachedFromWindowOrReleasedFromPool
ViewCompositionStrategy.DisposeOnViewTreeLifecycleDestroyed
WindowRecomposerPolicy

Interfaces

Functions

Properties

Classes

AbstractComposeView
AccessibilityAction
AccessibilityIterators.AbstractTextSegmentIterator
AccessibilityIterators.CharacterTextSegmentIterator
AccessibilityIterators.LineTextSegmentIterator
AccessibilityIterators.PageTextSegmentIterator
AccessibilityIterators.ParagraphTextSegmentIterator
AccessibilityIterators.WordTextSegmentIterator
AlignmentLine
AndroidContentCaptureManager.TranslateStatus.SHOW_ORIGINAL
AndroidContentCaptureManager.TranslateStatus.SHOW_TRANSLATED
AndroidUiDispatcher
AndroidUiFrameClock
AndroidUriHandler
AndroidViewConfiguration
AnimationPositions
AutoClearFocusBehavior
AutofillManager
AutofillNode
AutofillTree
AutofillType
AutofillType.AddressAuxiliaryDetails
AutofillType.AddressCountry
AutofillType.AddressLocality
AutofillType.AddressRegion
AutofillType.AddressStreet
AutofillType.BirthDateDay
AutofillType.BirthDateFull
AutofillType.BirthDateMonth
AutofillType.BirthDateYear
AutofillType.CreditCardExpirationDate
AutofillType.CreditCardExpirationDay
AutofillType.CreditCardExpirationMonth
AutofillType.CreditCardExpirationYear
AutofillType.CreditCardNumber
AutofillType.CreditCardSecurityCode
AutofillType.EmailAddress
AutofillType.Gender
AutofillType.NewPassword
AutofillType.NewUsername
AutofillType.Password
AutofillType.PersonFirstName
AutofillType.PersonFullName
AutofillType.PersonLastName
AutofillType.PersonMiddleInitial
AutofillType.PersonMiddleName
AutofillType.PersonNamePrefix
AutofillType.PersonNameSuffix
AutofillType.PhoneCountryCode
AutofillType.PhoneNumber
AutofillType.PhoneNumberDevice
AutofillType.PhoneNumberNational
AutofillType.PostalAddress
AutofillType.PostalCode
AutofillType.PostalCodeExtended
AutofillType.SmsOtpCode
AutofillType.Username
BeyondBoundsLayout.LayoutDirection
BiasAbsoluteAlignment
BiasAbsoluteAlignment.Horizontal
BiasAlignment
BiasAlignment.Horizontal
BiasAlignment.Vertical
BlurredEdgeTreatment
CacheDrawScope
ClipEntry
ClipMetadata
CollectionInfo
CollectionItemInfo
CombinedModifier
ComposeView
ComposeViewContext
CompositingStrategy
ConsumedData
ContentCaptureEventType.VIEW_APPEAR
ContentCaptureEventType.VIEW_DISAPPEAR
CredentialRequestData
CrossWindowBlur.Api31Impl.Registration
CustomAccessibilityAction
CustomDestinationResult.Cancelled
CustomDestinationResult.None
CustomDestinationResult.RedirectCancelled
CustomDestinationResult.Redirected
DelegatingNode
DialogProperties
DpTouchBoundsExpansion
DragAndDropEvent
DragAndDropTransferData
DrawResult
FixedScale
FocusDirection
FocusOrder
FocusRequester
FocusStateImpl.Active
FocusStateImpl.ActiveParent
FocusStateImpl.Captured
FocusStateImpl.Inactive
Focusability
FrameRateCategory
HapticFeedbackType
HistoricalChange
HorizontalAlignmentLine
HorizontalRuler
ImageVector
ImageVector.Builder
ImageVectorCache.ImageVectorEntry
ImageVectorCache.Key
IndirectPointerEventPrimaryDirectionalMotionAxis
IndirectPointerEventType
IndirectPointerInputChange
InputMode
InputTextSuggestionState
InspectableModifier
InspectableModifier.End
InspectorInfo
InspectorValueInfo
InternalCoreApi
InteropView
IntrinsicMinMax.Max
IntrinsicMinMax.Min
IntrinsicWidthHeight.Height
IntrinsicWidthHeight.Width
Invalidation.LookaheadMeasurement
Invalidation.LookaheadPlacement
Invalidation.Measurement
Invalidation.Placement
Key
KeyEvent
KeyEventType
LayoutBoundsHolder
LayoutNode.LayoutState.Idle
LayoutNode.LayoutState.LayingOut
LayoutNode.LayoutState.LookaheadLayingOut
LayoutNode.LayoutState.LookaheadMeasuring
LayoutNode.LayoutState.Measuring
LayoutNode.UsageByParent.InLayoutBlock
LayoutNode.UsageByParent.InMeasureBlock
LayoutNode.UsageByParent.NotUsed
LifecycleRetainedValuesStoreOwner.RetainedValuesStoreEntry
LiveRegionMode
LookaheadPassDelegate.PlacedState.IsNotPlaced
LookaheadPassDelegate.PlacedState.IsPlacedInApproach
LookaheadPassDelegate.PlacedState.IsPlacedInLookahead
MeasureAndLayoutDelegate.PostponedRequest
MeasureScopeMarker
MeasuringIntrinsics.IntrinsicMinMax.Max
MeasuringIntrinsics.IntrinsicMinMax.Min
MeasuringIntrinsics.IntrinsicWidthHeight.Height
MeasuringIntrinsics.IntrinsicWidthHeight.Width
MenuItemOption.Autofill
MenuItemOption.Copy
MenuItemOption.Cut
MenuItemOption.Paste
MenuItemOption.SelectAll
Modifier.Node
ModifierInfo
ModifierLocal
ModifierLocalMap
ModifierNodeElement
NativeClipboard
NativeKeyEvent
NestedScrollDispatcher
NestedScrollSource
NodeMeasuringIntrinsics.IntrinsicMinMax.Max
NodeMeasuringIntrinsics.IntrinsicMinMax.Min
NodeMeasuringIntrinsics.IntrinsicWidthHeight.Height
NodeMeasuringIntrinsics.IntrinsicWidthHeight.Width
Placeable
Placeable.PlacementScope
PlacementScopeMarker
PointerButtons
PointerClassification.Ambiguous
PointerClassification.DeepPress
PointerClassification.None
PointerClassification.Pan
PointerClassification.Pinch
PointerEvent
PointerEventPass
PointerEventPass.Final
PointerEventPass.Initial
PointerEventPass.Main
PointerEventTimeoutCancellationException
PointerEventType
PointerId
PointerInputChange
PointerInputFilter
PointerInteropFilter.DispatchToViewState.Dispatching
PointerInteropFilter.DispatchToViewState.NotDispatching
PointerInteropFilter.DispatchToViewState.Unknown
PointerKeyboardModifiers
PointerType
PopupProperties
ProgressBarRangeInfo
ProvidableModifierLocal
Ref
RelativeLayoutBounds
RequestDisallowInterceptTouchEvent
ResourceResolutionException
Role
RotaryScrollEvent
Ruler
ScaleFactor
ScrollAxisRange
SecureFlagPolicy
SecureFlagPolicy.Inherit
SecureFlagPolicy.SecureOff
SecureFlagPolicy.SecureOn
SemanticsConfiguration
SemanticsNode
SemanticsOwner
SemanticsPropertyKey
SubcomposeLayoutState
SubcomposeSlotReusePolicy.SlotIdsSet
TextInputServiceAndroid.TextInputCommand.HideKeyboard
TextInputServiceAndroid.TextInputCommand.ShowKeyboard
TextInputServiceAndroid.TextInputCommand.StartInput
TextInputServiceAndroid.TextInputCommand.StopInput
TextToolbarStatus
TextToolbarStatus.Hidden
TextToolbarStatus.Shown
ThrottledCallbacks.Entry
ToggleableState
ToggleableState.Indeterminate
ToggleableState.Off
ToggleableState.On
TouchBoundsExpansion
TransformOrigin
TraversableNode.Companion.TraverseDescendantsAction
TraversableNode.Companion.TraverseDescendantsAction.CancelTraversal
TraversableNode.Companion.TraverseDescendantsAction.ContinueTraversal
TraversableNode.Companion.TraverseDescendantsAction.SkipSubtreeAndContinueTraversal
UiComposable
UiMediaScope.KeyboardKind
UiMediaScope.PointerPrecision
UiMediaScope.Posture
UiMediaScope.ViewingDistance
VNode
ValueElement
ValueElementSequence
VectorApplier
VectorComposable
VectorGroup
VectorNode
VectorPainter
VectorPath
VectorProperty
VelocityTracker
VelocityTracker1D
VelocityTracker1D.Strategy.Impulse
VelocityTracker1D.Strategy.Lsq2
VerticalAlignmentLine
VerticalRuler
ViewCompositionStrategy.DisposeOnLifecycleDestroyed
WindowInsetsRulersProvider.WaterfallAnimation
WindowInsetsRulersProvider.WindowInsetsAnimationValues

Modifiers

Composable Functions

AndroidView
Dialog
Group
InterceptPlatformTextInput
Layout
LookaheadScope
MultiMeasureLayout
Path
Popup
RenderVectorGroup
SoundEffectOnInteraction
SubcomposeLayout
booleanResource
colorResource
derivedMediaQuery
dimensionResource
fontResource
imageResource
integerArrayResource
integerResource
mediaQuery
painterResource
pluralStringResource
rememberGraphicsLayer
rememberNestedScrollInteropConnection
rememberTextMeasurer
rememberVectorPainter
stringArrayResource
stringResource
vectorResource

Jetpack Compose / Compose UI / ui / Functions / onPreAttach

Function

onPreAttach

View Markdown Open in ChatGPT Open in Claude

CodeRabbit

AI writes the code. CodeRabbit catches the slop.

Ad Try CodeRabbit for Free

onPreAttach

Source set: Android

override fun onPreAttach(node: LayoutNode)

Content updated: 2026-09-24

onPostLayoutNodeReused ← Previous onPreLayoutNodeReused Next →

On this page

onPreAttach

Reach Android developers Put your product in front of engineers building Android and KMP apps. Sponsor Composables

Keep up to date

Subscribe for Composables product updates: new components, icons, Compose tools, and library releases.

Your email

Free Tools

SVG to Compose
Android Distribution Chart

Resources

Compose Unstyled
Compose Gradients
Compose Examples
Components
Icons
Reference

Explore

Documentation
Blog

Company

About
Partners
Contact us

Copyright © 2026 Composables.