RecyclerView.LayoutParams - Android SDK

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

Class Overview

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

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Inherited XML Attributes

From class android.view.ViewGroup.MarginLayoutParams

From class android.view.ViewGroup.LayoutParams

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Inherited Constants

From class android.view.ViewGroup.LayoutParams

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Inherited Fields

From class android.view.ViewGroup.MarginLayoutParams

From class android.view.ViewGroup.LayoutParams

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 is deprecated. 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.

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Inherited Methods

From class android.view.ViewGroup.MarginLayoutParams

From class android.view.ViewGroup.LayoutParams

From class java.lang.Object

Object	clone() Creates and returns a copy of this `Object`.
boolean	equals(Object o) Compares this instance with the specified object and indicates if they are equal.
void	finalize() Invoked when the garbage collector has detected that this instance is no longer reachable.
final Class<?>	getClass() Returns the unique instance of `Class` that represents this object's class.
int	hashCode() Returns an integer hash code for this object.
final void	notify() Causes a thread which is waiting on this object's monitor (by means of calling one of the `wait()` methods) to be woken up.
final void	notifyAll() Causes all threads which are waiting on this object's monitor (by means of calling one of the `wait()` methods) to be woken up.
String	toString() Returns a string containing a concise, human-readable description of this object.
final void	wait() Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object.
final void	wait(long millis, int nanos) Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object or until the specified timeout expires.
final void	wait(long millis) Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object or until the specified timeout expires.

Public Constructors

public RecyclerView.LayoutParams (Context c, AttributeSet attrs)

public RecyclerView.LayoutParams (int width, int height)

public RecyclerView.LayoutParams (ViewGroup.MarginLayoutParams source)

public RecyclerView.LayoutParams (ViewGroup.LayoutParams source)

public RecyclerView.LayoutParams (RecyclerView.LayoutParams source)

Public Methods

public int getViewAdapterPosition ()

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

Returns

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.

public int getViewLayoutPosition ()

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

Returns

the adapter position this view as of latest layout pass

public int getViewPosition ()

This method is deprecated.
use getViewLayoutPosition() or getViewAdapterPosition()

public 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

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

public 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

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

public 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

true if the view is invalid

public boolean viewNeedsUpdate ()

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

Returns

true if the view should have its content updated

Results

Interfaces

Classes

RecyclerView.LayoutParams

Class Overview

Summary

Public Constructors

public RecyclerView.LayoutParams (Context c, AttributeSet attrs)

public RecyclerView.LayoutParams (int width, int height)

public RecyclerView.LayoutParams (ViewGroup.MarginLayoutParams source)

public RecyclerView.LayoutParams (ViewGroup.LayoutParams source)

public RecyclerView.LayoutParams (RecyclerView.LayoutParams source)

Public Methods

public int getViewAdapterPosition ()

Returns

public int getViewLayoutPosition ()

Returns

public int getViewPosition ()

public boolean isItemChanged ()

Returns

public boolean isItemRemoved ()

Returns

public boolean isViewInvalid ()

Returns

public boolean viewNeedsUpdate ()

Returns