Holds information about a smooth scroll request by a {@link SmoothScroller}.

Base class for an Adapter <p>Adapters provide a binding from an app-specific data set to views that are displayed within a {@link RecyclerView}.</p>

Observer base class for watching changes to an {@link Adapter}. See {@link Adapter#registerAdapterDataObserver(AdapterDataObserver)}.

Helper class that can enqueue and process adapter update operations. <p> To support animations, RecyclerView presents an older version the Adapter to

Simple data class to keep Anchor information

Contract between AdapterHelper and RecyclerView.

A callback interface that can be used to alter the drawing order of RecyclerView children. <p> It works using the {@link ViewGroup#getChildDrawingOrde

Instrumented test, which will execute on an Android device. @see <a href="http://d.android.com/tools/testing">Testing documentation</a>

Example local unit test, which will execute on the development machine (host). @see <a href="http://d.android.com/tools/testing">Testing documentatio

This class defines the animations that take place on items as changes are made to the adapter. Subclasses of ItemAnimator can be used to implement cu

This interface is used to inform listeners when all pending or running animations in an ItemAnimator are finished. This can be used, for example, to d

The interface to be implemented by listeners to animation events from this ItemAnimator. This is used internally and is not intended for developers to

Internal listener that manages items after animations finish. This is how items are retained (not recycled) during animations, but allowed to be recyc

An ItemDecoration allows the application to add a special drawing and layout offset to specific item views from the adapter's data set. This can be us

A simple data structure that holds information about an item's bounds. This information is used in calculating item animations. Default implementation

A <code>LayoutManager</code> is responsible for measuring and positioning item views within a <code>RecyclerView</code> as well as determining the pol

{@link android.view.ViewGroup.MarginLayoutParams LayoutParams} subclass for children of {@link RecyclerView}. Custom {@link LayoutManager layout manag

Interface for LayoutManagers to request items to be prefetched, based on position, with specified distance from viewport, which indicates priority. @

Helper class that keeps temporary state while {LayoutManager} is filling out the empty space.

A {@link android.support.v7.widget.RecyclerView.LayoutManager} implementation which provides similar functionality to {@link android.widget.ListView}.

A Listener interface that can be attached to a RecylcerView to get notified whenever a ViewHolder is attached to or detached from RecyclerView.

This class defines the behavior of fling if the developer wishes to handle it. <p> Subclasses of {@link OnFlingListener} can be used to implement cust

An OnItemTouchListener allows the application to intercept touch events in progress at the view hierarchy level of the RecyclerView before those touch

An OnScrollListener can be added to a RecyclerView to receive messages when a scrolling event has occurred on that RecyclerView. <p> @see RecyclerView

Helper class for LayoutManagers to abstract measurements depending on the View's orientation. <p> It is developed to easily support vertical and horiz

Some general properties that a LayoutManager may want to use.

Author : xuan. Date : 18-3-14. Description : the file description

Author : xuan. Date : 18-3-31. Description : the file description

Author : xuan. Date : 18-3-15. Description : the file description

Author : xuan. Date : 18-3-14. Description : the file description

RecycledViewPool lets you share Views between multiple RecyclerViews. <p> If you want to recycle views across RecyclerViews, create an instance of Rec

A Recycler is responsible for managing scrapped or detached item views for reuse. <p>A "scrapped" view is a view that is still attached to its parent

A RecyclerListener can be set on a RecyclerView to receive messages whenever a view is recycled. @see RecyclerView#setRecyclerListener(RecyclerListen

A flexible view for providing a limited window into a large data set. <p> <h3>Glossary of terms:</h3> <p> <ul> <li><em>Adapter:</em> A subclass of {@l

Author : xuan. Date : 18-3-15. Description : the file description

This is public so that the CREATOR can be accessed on cold launch. @hide

@hide

Tracks both pooled holders, as well as create/bind timing metadata for the given type. Note that this tracks running averages of create/bind time acr

An interface which is optionally implemented by custom {@link RecyclerView.LayoutManager} to provide a hint to a {@link SmoothScroller} about the loca

An implementation of {@link RecyclerView.OnItemTouchListener} that has empty method bodies and default return values. <p> You may prefer to extend thi

<p>Base class for smooth scrolling. Handles basic tracking of the target view position and provides methods to trigger a programmatic scroll.</p> @se

<p>Contains useful information about the current RecyclerView state like target scroll position or view focus. State object can also keep arbitrary da

Queued operation to happen when child views are updated.

ViewCacheExtension is a helper class to provide an additional layer of view caching that can be controlled by the developer. <p> When {@link Recycler#

A ViewHolder describes an item view and metadata about its place within the RecyclerView. <p>{@link Adapter} implementations should subclass ViewHold