# RecyclerView.LayoutParams
# RecyclerView.LayoutParams
Artifact:[androidx.recyclerview:recyclerview](https://developer.android.com/jetpack/androidx/releases/recyclerview)
[View Source](https://cs.android.com/search?q=file:androidx/recyclerview/widget/RecyclerView.java+class:androidx.recyclerview.widget.RecyclerView.LayoutParams)
Added in[1.0.0](https://developer.android.com/jetpack/androidx/releases/recyclerview#1.0.0)
*** ** * ** ***
Kotlin\|[Java](https://developer.android.com/reference/androidx/recyclerview/widget/RecyclerView.LayoutParams "View this page in Java")
```
class RecyclerView.LayoutParams : ViewGroup.MarginLayoutParams
```
|---|---|---|-----------------------------------------------------------------------------------------------------------------------------------------------------------------|
| [kotlin.Any](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-any/index.html) ||||
| ↳ | [android.view.ViewGroup.LayoutParams](https://developer.android.com/reference/android/view/ViewGroup.LayoutParams.html) |||
| | ↳ | [android.view.ViewGroup.MarginLayoutParams](https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html) ||
| | | ↳ | [androidx.recyclerview.widget.RecyclerView.LayoutParams](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView.LayoutParams) |
Known direct subclasses
[GridLayoutManager.LayoutParams](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/GridLayoutManager.LayoutParams),[StaggeredGridLayoutManager.LayoutParams](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/StaggeredGridLayoutManager.LayoutParams)
|----------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------|
| [GridLayoutManager.LayoutParams](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/GridLayoutManager.LayoutParams) | LayoutParams used by GridLayoutManager. |
| [StaggeredGridLayoutManager.LayoutParams](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/StaggeredGridLayoutManager.LayoutParams) | LayoutParams used by StaggeredGridLayoutManager. |
*** ** * ** ***
[LayoutParams](https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html)subclass for children of[RecyclerView](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView). Custom[layout managers](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView.LayoutManager)are encouraged to create their own subclass of this`LayoutParams`class to store any additional required per-child view metadata about the layout.
## Summary
| ### Public constructors |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| [LayoutParams](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView.LayoutParams#LayoutParams(androidx.recyclerview.widget.RecyclerView.LayoutParams))`(source: `[RecyclerView.LayoutParams](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView.LayoutParams)`!)` |
| [LayoutParams](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView.LayoutParams#LayoutParams(android.view.ViewGroup.LayoutParams))`(source: `[ViewGroup.LayoutParams](https://developer.android.com/reference/android/view/ViewGroup.LayoutParams.html)`!)` |
| [LayoutParams](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView.LayoutParams#LayoutParams(android.view.ViewGroup.MarginLayoutParams))`(source: `[ViewGroup.MarginLayoutParams](https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html)`!)` |
| [LayoutParams](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView.LayoutParams#LayoutParams(android.content.Context,android.util.AttributeSet))`(c: `[Context](https://developer.android.com/reference/android/content/Context.html)`!, attrs: `[AttributeSet](https://developer.android.com/reference/android/util/AttributeSet.html)`!)` |
| [LayoutParams](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView.LayoutParams#LayoutParams(int,int))`(width: `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)`, height: `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)`)` |
| ### Public functions |
|-------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| [Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | [getAbsoluteAdapterPosition](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView.LayoutParams#getAbsoluteAdapterPosition())`()` Returns the up-to-date adapter position that the view this LayoutParams is attached to corresponds to in the[RecyclerView](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView). |
| [Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | [getBindingAdapterPosition](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView.LayoutParams#getBindingAdapterPosition())`()` Returns the up-to-date adapter position that the view this LayoutParams is attached to corresponds to with respect to the[Adapter](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView.Adapter)that bound this View. |
| [Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | ~~[getViewAdapterPosition](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView.LayoutParams#getViewAdapterPosition())~~`()` **This function is deprecated.** This method is confusing when nested adapters are used.
|
| [Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | [getViewLayoutPosition](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView.LayoutParams#getViewLayoutPosition())`()` Returns the adapter position that the view this LayoutParams is attached to corresponds to as of latest layout calculation. |
| [Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | ~~[getViewPosition](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView.LayoutParams#getViewPosition())~~`()` **This function is deprecated.** use[getViewLayoutPosition](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView.LayoutParams#getViewLayoutPosition())or[getViewAdapterPosition](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView.LayoutParams#getViewAdapterPosition())
|
| [Boolean](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html) | [isItemChanged](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView.LayoutParams#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](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html) | [isItemRemoved](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView.LayoutParams#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](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html) | [isViewInvalid](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView.LayoutParams#isViewInvalid())`()` Returns true if the view this LayoutParams is attached to is now representing potentially invalid data. |
| [Boolean](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html) | [viewNeedsUpdate](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView.LayoutParams#viewNeedsUpdate())`()` Returns true if the view this LayoutParams is attached to needs to have its content updated from the corresponding adapter. |
| ### Inherited Constants |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| From[android.view.ViewGroup.LayoutParams](https://developer.android.com/reference/android/view/ViewGroup.LayoutParams.html) |-------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------| | `const `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | [FILL_PARENT](https://developer.android.com/reference/android/view/ViewGroup.LayoutParams.html#FILL_PARENT())` = -1` **This property is deprecated.** | | `const `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | [MATCH_PARENT](https://developer.android.com/reference/android/view/ViewGroup.LayoutParams.html#MATCH_PARENT())` = -1` | | `const `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | [WRAP_CONTENT](https://developer.android.com/reference/android/view/ViewGroup.LayoutParams.html#WRAP_CONTENT())` = -2` | |
| ### Inherited functions |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| From[android.view.ViewGroup.LayoutParams](https://developer.android.com/reference/android/view/ViewGroup.LayoutParams.html) |-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | [Unit](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html) | [setBaseAttributes](https://developer.android.com/reference/android/view/ViewGroup.LayoutParams.html#setBaseAttributes(android.content.res.TypedArray, int, int))`(a: `[TypedArray](https://developer.android.com/reference/android/content/res/TypedArray.html)`!, widthAttr: `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)`, heightAttr: `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)`)` | |
| From[android.view.ViewGroup.MarginLayoutParams](https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html) |-------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | [Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | [getLayoutDirection](https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html#getLayoutDirection())`()` | | [Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | [getMarginEnd](https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html#getMarginEnd())`()` | | [Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | [getMarginStart](https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html#getMarginStart())`()` | | [Boolean](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html) | [isMarginRelative](https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html#isMarginRelative())`()` | | [Unit](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html) | [resolveLayoutDirection](https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html#resolveLayoutDirection(int))`(layoutDirection: `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)`)` | | [Unit](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html) | [setLayoutDirection](https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html#setLayoutDirection(int))`(layoutDirection: `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)`)` | | [Unit](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html) | [setMarginEnd](https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html#setMarginEnd(int))`(end: `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)`)` | | [Unit](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html) | [setMarginStart](https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html#setMarginStart(int))`(start: `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)`)` | | [Unit](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html) | [setMargins](https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html#setMargins(int, int, int, int))`(left: `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)`, top: `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)`, right: `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)`, bottom: `[Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)`)` | |
| ### Inherited properties |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| From[android.view.ViewGroup.LayoutParams](https://developer.android.com/reference/android/view/ViewGroup.LayoutParams.html) |-----------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------| | [Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | [height](https://developer.android.com/reference/android/view/ViewGroup.LayoutParams.html#height()) | | [LayoutAnimationController.AnimationParameters](https://developer.android.com/reference/android/view/animation/LayoutAnimationController.AnimationParameters.html)`!` | [layoutAnimationParameters](https://developer.android.com/reference/android/view/ViewGroup.LayoutParams.html#layoutAnimationParameters()) | | [Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | [width](https://developer.android.com/reference/android/view/ViewGroup.LayoutParams.html#width()) | |
| From[android.view.ViewGroup.MarginLayoutParams](https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html) |-----------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------| | [Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | [bottomMargin](https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html#bottomMargin()) | | [Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | [leftMargin](https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html#leftMargin()) | | [Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | [rightMargin](https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html#rightMargin()) | | [Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | [topMargin](https://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html#topMargin()) | |
## Public constructors
### LayoutParams
Added in[1.0.0](https://developer.android.com/jetpack/androidx/releases/recyclerview#1.0.0)
```
LayoutParams(source: RecyclerView.LayoutParams!)
```
### LayoutParams
Added in[1.0.0](https://developer.android.com/jetpack/androidx/releases/recyclerview#1.0.0)
```
LayoutParams(source: ViewGroup.LayoutParams!)
```
### LayoutParams
Added in[1.0.0](https://developer.android.com/jetpack/androidx/releases/recyclerview#1.0.0)
```
LayoutParams(source: ViewGroup.MarginLayoutParams!)
```
### LayoutParams
Added in[1.0.0](https://developer.android.com/jetpack/androidx/releases/recyclerview#1.0.0)
```
LayoutParams(c: Context!, attrs: AttributeSet!)
```
### LayoutParams
Added in[1.0.0](https://developer.android.com/jetpack/androidx/releases/recyclerview#1.0.0)
```
LayoutParams(width: Int, height: Int)
```
## Public functions
### getAbsoluteAdapterPosition
Added in[1.2.0](https://developer.android.com/jetpack/androidx/releases/recyclerview#1.2.0)
```
fun getAbsoluteAdapterPosition(): Int
```
Returns the up-to-date adapter position that the view this LayoutParams is attached to corresponds to in the[RecyclerView](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView). If the[RecyclerView](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView)has an[Adapter](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView.Adapter)that merges other adapters, this position will be with respect to the adapter that is assigned to the[RecyclerView](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView).
| Returns |
|-----------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| [Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | the up-to-date adapter position this view with respect to the RecyclerView. It may return[NO_POSITION](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView#NO_POSITION())if item represented by this View has been removed or its up-to-date position cannot be calculated. |
### getBindingAdapterPosition
Added in[1.2.0](https://developer.android.com/jetpack/androidx/releases/recyclerview#1.2.0)
```
fun getBindingAdapterPosition(): Int
```
Returns the up-to-date adapter position that the view this LayoutParams is attached to corresponds to with respect to the[Adapter](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView.Adapter)that bound this View.
| Returns |
|-----------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| [Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | the up-to-date adapter position this view relative to the[Adapter](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView.Adapter)that bound this View. It may return[NO_POSITION](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView#NO_POSITION())if item represented by this View has been removed or its up-to-date position cannot be calculated. |
### getViewAdapterPosition
Added in[1.0.0](https://developer.android.com/jetpack/androidx/releases/recyclerview#1.0.0)
Deprecated in[1.2.0](https://developer.android.com/jetpack/androidx/releases/recyclerview#1.2.0)
```
fun [getViewAdapterPosition](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView.LayoutParams#getViewAdapterPosition())(): Int
```
| **This function is deprecated.**
|
This method is confusing when nested adapters are used. If you are calling from the context of an[Adapter](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView.Adapter), use[getBindingAdapterPosition](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView.LayoutParams#getBindingAdapterPosition()). If you need the position that[RecyclerView](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView)sees, use[getAbsoluteAdapterPosition](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView.LayoutParams#getAbsoluteAdapterPosition()).
### getViewLayoutPosition
Added in[1.0.0](https://developer.android.com/jetpack/androidx/releases/recyclerview#1.0.0)
```
fun getViewLayoutPosition(): Int
```
Returns the adapter position that the view this LayoutParams is attached to corresponds to as of latest layout calculation.
| Returns |
|-----------------------------------------------------------------------------|---------------------------------------------------------|
| [Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html) | the adapter position this view as of latest layout pass |
### getViewPosition
Added in[1.0.0](https://developer.android.com/jetpack/androidx/releases/recyclerview#1.0.0)
Deprecated in[1.0.0](https://developer.android.com/jetpack/androidx/releases/recyclerview#1.0.0)
```
fun [getViewPosition](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView.LayoutParams#getViewPosition())(): Int
```
| **This function is deprecated.**
|
use[getViewLayoutPosition](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView.LayoutParams#getViewLayoutPosition())or[getViewAdapterPosition](https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView.LayoutParams#getViewAdapterPosition())
### isItemChanged
Added in[1.0.0](https://developer.android.com/jetpack/androidx/releases/recyclerview#1.0.0)
```
fun isItemChanged(): Boolean
```
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](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html) | true if the item the view corresponds to was changed in the data set |
### isItemRemoved
Added in[1.0.0](https://developer.android.com/jetpack/androidx/releases/recyclerview#1.0.0)
```
fun isItemRemoved(): Boolean
```
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](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html) | true if the item the view corresponds to was removed from the data set |
### isViewInvalid
Added in[1.0.0](https://developer.android.com/jetpack/androidx/releases/recyclerview#1.0.0)
```
fun isViewInvalid(): Boolean
```
Returns true if the view this LayoutParams is attached to is now representing potentially invalid data. A LayoutManager should scrap/recycle it.
| Returns |
|-------------------------------------------------------------------------------------|-----------------------------|
| [Boolean](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html) | true if the view is invalid |
### viewNeedsUpdate
Added in[1.0.0](https://developer.android.com/jetpack/androidx/releases/recyclerview#1.0.0)
```
fun viewNeedsUpdate(): Boolean
```
Returns true if the view this LayoutParams is attached to needs to have its content updated from the corresponding adapter.
| Returns |
|-------------------------------------------------------------------------------------|--------------------------------------------------|
| [Boolean](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html) | true if the view should have its content updated |