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

public final class

RecyclerView.Recycler

extends Object

java.lang.Object
↳	android.support.v7.widget.RecyclerView.Recycler

Class Overview

A Recycler is responsible for managing scrapped or detached item views for reuse.

A "scrapped" view is a view that is still attached to its parent RecyclerView but that has been marked for removal or reuse.

Typical use of a Recycler by a RecyclerView.LayoutManager will be to obtain views for an adapter's data set representing the data at a given position or item ID. If the view to be reused is considered "dirty" the adapter will be asked to rebind it. If not, the view can be quickly reused by the LayoutManager with no further work. Clean views that have not requested layout may be repositioned by a LayoutManager without remeasurement.

Summary

Public Constructors
	RecyclerView.Recycler()

Public Methods
void	clear() Clear scrap views out of this recycler.
List<RecyclerView.ViewHolder>	getScrapList() Returns an unmodifiable list of ViewHolders that are currently in the scrap list.
View	getViewForPosition(int position) Obtain a view initialized for the given position.
void	recycleView(View view) Recycle a detached view.
void	setViewCacheSize(int viewCount) Set the maximum number of detached, valid views we should retain for later use.

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Inherited Methods

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.Recycler ()

Public Methods

public void clear ()

Clear scrap views out of this recycler. Detached views contained within a recycled view pool will remain.

public List<RecyclerView.ViewHolder> getScrapList ()

Returns an unmodifiable list of ViewHolders that are currently in the scrap list.

Returns

List of ViewHolders in the scrap list.

public View getViewForPosition (int position)

Obtain a view initialized for the given position.

This method should be used by RecyclerView.LayoutManager implementations to obtain views to represent data from an RecyclerView.Adapter.

The Recycler may reuse a scrap or detached view from a shared pool if one is available for the correct view type. If the adapter has not indicated that the data at the given position has changed, the Recycler will attempt to hand back a scrap view that was previously initialized for that data without rebinding.

Parameters

position	Position to obtain a view for

Returns

A view representing the data at position from adapter

public void recycleView (View view)

Recycle a detached view. The specified view will be added to a pool of views for later rebinding and reuse.

A view must be fully detached before it may be recycled.

Parameters

view	Removed view for recycling

public void setViewCacheSize (int viewCount)

Set the maximum number of detached, valid views we should retain for later use.

Parameters

viewCount	Number of views to keep before sending views to the shared pool

Results

Interfaces

Classes

RecyclerView.Recycler

Class Overview

Summary

Public Constructors

public RecyclerView.Recycler ()

Public Methods

public void clear ()

public List<RecyclerView.ViewHolder> getScrapList ()

Returns

public View getViewForPosition (int position)

Parameters

Returns

public void recycleView (View view)

Parameters

public void setViewCacheSize (int viewCount)

Parameters