added in version 22.1.0
belongs to Maven artifact com.android.support:recyclerview-v7:28.0.0-alpha1

Summary: Inherited Constants | Inherited Fields | Ctors | Methods | Inherited Methods | [Expand All]

RecyclerView.LayoutParams

This package is part of the Android support library which is no longer maintained. The support library has been superseded by AndroidX which is part of Jetpack. We recommend using the AndroidX libraries in all new projects. You should also consider migrating existing projects to AndroidX. To find the AndroidX class that maps to this deprecated class, see the AndroidX support library class mappings.

public static class RecyclerView.LayoutParams
extends ViewGroup.MarginLayoutParams

java.lang.Object
↳	android.view.ViewGroup.LayoutParams
	↳	android.view.ViewGroup.MarginLayoutParams
		↳	android.support.v7.widget.RecyclerView.LayoutParams

Known Direct Subclasses GridLayoutManager.LayoutParams,StaggeredGridLayoutManager.LayoutParams GridLayoutManager.LayoutParams LayoutParams used by GridLayoutManager.  StaggeredGridLayoutManager.LayoutParams LayoutParams used by StaggeredGridLayoutManager.

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LayoutParams subclass for children of RecyclerView. Custom layout managers are encouraged to create their own subclass of this LayoutParams class to store any additional required per-child view metadata about the layout.

Summary

Inherited constants
From class android.view.ViewGroup.LayoutParams int FILL_PARENT int MATCH_PARENT int WRAP_CONTENT

Inherited fields
From class android.view.ViewGroup.MarginLayoutParams public int bottomMargin public int leftMargin public int rightMargin public int topMargin
From class android.view.ViewGroup.LayoutParams public int height public LayoutAnimationController.AnimationParameters layoutAnimationParameters public int width

Public constructors
RecyclerView.LayoutParams(Context c, AttributeSet attrs)
RecyclerView.LayoutParams(int width, int height)
RecyclerView.LayoutParams(ViewGroup.MarginLayoutParams source)
RecyclerView.LayoutParams(ViewGroup.LayoutParams source)
RecyclerView.LayoutParams(RecyclerView.LayoutParams source)

Public methods
int	getViewAdapterPosition() Returns the up-to-date adapter position that the view this LayoutParams is attached to corresponds to.
int	getViewLayoutPosition() Returns the adapter position that the view this LayoutParams is attached to corresponds to as of latest layout calculation.
int	getViewPosition() This method was deprecated in API level 22.1.0. use getViewLayoutPosition() or getViewAdapterPosition()
boolean	isItemChanged() Returns true if the adapter data item corresponding to the view this LayoutParams is attached to has been changed in the data set.
boolean	isItemRemoved() Returns true if the adapter data item corresponding to the view this LayoutParams is attached to has been removed from the data set.
boolean	isViewInvalid() Returns true if the view this LayoutParams is attached to is now representing potentially invalid data.
boolean	viewNeedsUpdate() Returns true if the view this LayoutParams is attached to needs to have its content updated from the corresponding adapter.

Inherited methods
From class android.view.ViewGroup.MarginLayoutParams int getLayoutDirection() int getMarginEnd() int getMarginStart() boolean isMarginRelative() void resolveLayoutDirection(int arg0) void setLayoutDirection(int arg0) void setMarginEnd(int arg0) void setMarginStart(int arg0) void setMargins(int arg0, int arg1, int arg2, int arg3)
From class android.view.ViewGroup.LayoutParams void resolveLayoutDirection(int arg0) void setBaseAttributes(TypedArray arg0, int arg1, int arg2)
From class java.lang.Object Object clone() boolean equals(Object arg0) void finalize() final Class<?> getClass() int hashCode() final void notify() final void notifyAll() String toString() final void wait(long arg0, int arg1) final void wait(long arg0) final void wait()

Public constructors

RecyclerView.LayoutParams

added in version 22.1.0

RecyclerView.LayoutParams (Context c, 
                AttributeSet attrs)

Parameters
c	Context
attrs	AttributeSet

RecyclerView.LayoutParams

added in version 22.1.0

RecyclerView.LayoutParams (int width, 
                int height)

Parameters
width	int
height	int

RecyclerView.LayoutParams

added in version 22.1.0

RecyclerView.LayoutParams (ViewGroup.MarginLayoutParams source)

Parameters
source	ViewGroup.MarginLayoutParams

RecyclerView.LayoutParams

added in version 22.1.0

RecyclerView.LayoutParams (ViewGroup.LayoutParams source)

Parameters
source	ViewGroup.LayoutParams

RecyclerView.LayoutParams

added in version 22.1.0

RecyclerView.LayoutParams (RecyclerView.LayoutParams source)

Parameters
source	RecyclerView.LayoutParams

Public methods

getViewAdapterPosition

added in version 22.1.0

int getViewAdapterPosition ()

Returns the up-to-date adapter position that the view this LayoutParams is attached to corresponds to.

Returns
int	the up-to-date adapter position this view. It may return NO_POSITION if item represented by this View has been removed or its up-to-date position cannot be calculated.

getViewLayoutPosition

added in version 22.1.0

int getViewLayoutPosition ()

Returns the adapter position that the view this LayoutParams is attached to corresponds to as of latest layout calculation.

Returns
int	the adapter position this view as of latest layout pass

getViewPosition

added in version 22.1.0

int getViewPosition ()

This method was deprecated in API level 22.1.0.
use getViewLayoutPosition() or getViewAdapterPosition()

Returns
int

isItemChanged

added in version 22.1.0

boolean isItemChanged ()

Returns true if the adapter data item corresponding to the view this LayoutParams is attached to has been changed in the data set. A LayoutManager may choose to treat it differently in order to animate its changing state.

Returns
boolean	true if the item the view corresponds to was changed in the data set

isItemRemoved

added in version 22.1.0

boolean isItemRemoved ()

Returns true if the adapter data item corresponding to the view this LayoutParams is attached to has been removed from the data set. A LayoutManager may choose to treat it differently in order to animate its outgoing or disappearing state.

Returns
boolean	true if the item the view corresponds to was removed from the data set

isViewInvalid

added in version 22.1.0

boolean isViewInvalid ()

Returns true if the view this LayoutParams is attached to is now representing potentially invalid data. A LayoutManager should scrap/recycle it.

Returns
boolean	true if the view is invalid

viewNeedsUpdate

added in version 22.1.0

boolean viewNeedsUpdate ()

Returns true if the view this LayoutParams is attached to needs to have its content updated from the corresponding adapter.

Returns
boolean	true if the view should have its content updated

• Annotations

  • RecyclerView.EdgeEffectFactory.EdgeDirection
  • RecyclerView.ItemAnimator.AdapterChanges

• Interfaces

  • ActionMenuView.OnMenuItemClickListener
  • PopupMenu.OnDismissListener
  • PopupMenu.OnMenuItemClickListener
  • RecyclerView.ChildDrawingOrderCallback
  • RecyclerView.ItemAnimator.ItemAnimatorFinishedListener
  • RecyclerView.LayoutManager.LayoutPrefetchRegistry
  • RecyclerView.OnChildAttachStateChangeListener
  • RecyclerView.OnItemTouchListener
  • RecyclerView.RecyclerListener
  • RecyclerView.SmoothScroller.ScrollVectorProvider
  • SearchView.OnCloseListener
  • SearchView.OnQueryTextListener
  • SearchView.OnSuggestionListener
  • ShareActionProvider.OnShareTargetSelectedListener
  • ThemedSpinnerAdapter
  • Toolbar.OnMenuItemClickListener

• Classes

  • ActionMenuView
  • ActionMenuView.LayoutParams
  • AppCompatAutoCompleteTextView
  • AppCompatButton
  • AppCompatCheckBox
  • AppCompatCheckedTextView
  • AppCompatEditText
  • AppCompatImageButton
  • AppCompatImageView
  • AppCompatMultiAutoCompleteTextView
  • AppCompatRadioButton
  • AppCompatRatingBar
  • AppCompatSeekBar
  • AppCompatSpinner
  • AppCompatTextView
  • CardView
  • DefaultItemAnimator
  • DividerItemDecoration
  • GridLayout
  • GridLayout.Alignment
  • GridLayout.LayoutParams
  • GridLayout.Spec
  • GridLayoutManager
  • GridLayoutManager.DefaultSpanSizeLookup
  • GridLayoutManager.LayoutParams
  • GridLayoutManager.SpanSizeLookup
  • LinearLayoutCompat
  • LinearLayoutCompat.LayoutParams
  • LinearLayoutManager
  • LinearLayoutManager.LayoutChunkResult
  • LinearSmoothScroller
  • LinearSnapHelper
  • ListPopupWindow
  • OrientationHelper
  • PagerSnapHelper
  • PopupMenu
  • RecyclerView
  • RecyclerView.Adapter
  • RecyclerView.AdapterDataObserver
  • RecyclerView.EdgeEffectFactory
  • RecyclerView.ItemAnimator
  • RecyclerView.ItemAnimator.ItemHolderInfo
  • RecyclerView.ItemDecoration
  • RecyclerView.LayoutManager
  • RecyclerView.LayoutManager.Properties
  • RecyclerView.LayoutParams
  • RecyclerView.OnFlingListener
  • RecyclerView.OnScrollListener
  • RecyclerView.RecycledViewPool
  • RecyclerView.Recycler
  • RecyclerView.SimpleOnItemTouchListener
  • RecyclerView.SmoothScroller
  • RecyclerView.SmoothScroller.Action
  • RecyclerView.State
  • RecyclerView.ViewCacheExtension
  • RecyclerView.ViewHolder
  • RecyclerViewAccessibilityDelegate
  • RecyclerViewAccessibilityDelegate.ItemDelegate
  • SearchView
  • ShareActionProvider
  • SimpleItemAnimator
  • SnapHelper
  • StaggeredGridLayoutManager
  • StaggeredGridLayoutManager.LayoutParams
  • SwitchCompat
  • ThemedSpinnerAdapter.Helper
  • Toolbar
  • Toolbar.LayoutParams
  • Toolbar.SavedState
  • TooltipCompat