Called when searching for a focusable view in the given direction has failed for the current content of the RecyclerView. <p>This is the LayoutManage

Lay out all relevant child views from the given adapter. The LayoutManager is in charge of the behavior of item animations. By default, RecyclerView

Consumes adapter updates and calculates which type of animations we want to run. Called in onMeasure and dispatchLayout. <p> This method may process o

Used as a fast path for unscrapping and recycling a view during a bulk operation. The caller must call {@link #clearScrap()} when it's done to update

Records the animation information for a view holder that was bounced from hidden list. It also clears the bounce back flag.

Helper method to call appropriate recycle method depending on current layout direction @param recycler Current recycler that is attached to Recycl

Register a new observer to listen for data changes. <p>The adapter may publish a variety of events describing specific changes. Not all adapters may

If either of the horizontal edge glows are currently active, this consumes part or all of deltaX on the edge glow. @param deltaX The pointer motion,

If either of the vertical edge glows are currently active, this consumes part or all of deltaY on the edge glow. @param deltaY The pointer motion, in

Removes and recycles all views - both those currently attached, and those in the Recycler.

Remove an {@link OnItemTouchListener}. It will no longer be able to intercept touch events. @param listener Listener to remove

Remove a listener that was notified of any changes in scroll state or position. @param listener listener to set or null to clear

Remove a view from the currently attached RecyclerView if needed. LayoutManagers should use this method to completely remove a child view that is no l

Requests that the given child of the RecyclerView be positioned onto the screen. This method can be called for both unfocusable and focusable child vi

Mark an attached view as scrap. <p>"Scrap" views are still attached to their parent RecyclerView but are eligible for rebinding and reuse. Requests f

Replaces the current adapter with the new one and triggers listeners. @param adapter The new adapter @param compatibleWithPrevious If

Sets the {@link ChildDrawingOrderCallback} to be used for drawing children. <p> See {@link ViewGroup#getChildDrawingOrder(int, int)} for details. Call

This method is here so that we can control the important for a11y changes and test it.

Sets the {@link #left}, {@link #top}, {@link #right} and {@link #bottom} values from the given ViewHolder. Clears all {@link #changeFlags}. @param ho

Enable or disable layout and scroll. After <code>setLayoutFrozen(true)</code> is called, Layout requests will be postponed until <code>setLayoutFroze

Called after a layout is calculated during a measure pass when using auto-measure. <p> It simply traverses all children to calculate a bounding box th

Set a {@link OnFlingListener} for this {@link RecyclerView}. <p> If the {@link OnFlingListener} is set then it will receive calls to {@link #fling(int

Sets the orientation of the layout. {@link LinearLayoutManager} will do its best to keep scroll position. @param orientation {@link #HORIZONTAL} or {

Sets whether LayoutManager should start laying out items from the end of the UI. The order items are traversed is not affected by this call. <p> For v

Used to reverse item traversal and layout order. This behaves similar to the layout change for RTL views. When set to true, first item is laid out at

Sets the number of spans for the layout. This will invalidate all of the span assignments for Views. <p> Calling this method will automatically result

Returns true if edgeEffect should call onAbsorb() with velocity or false if it should animate with a fling. It will animate with a fling if the veloci

RecyclerView internally does its own View measurement caching which should help with WRAP_CONTENT. <p> Use this method if the View is already measured

The number of items in the list. @return The number of items in the list.

Snaps to a target view which currently exists in the attached {@link RecyclerView}. This method is used to snap the view when the {@link RecyclerView}

Sorts and removes duplicate items, leaving only the last item from each group of "same" items. Move the remaining items to the beginning of the array.

Similar to {@link #stopScroll()} but does not set the state.

Attempts to bind view, and account for relevant timing information. If deadlineNs != FOREVER_NS, this method may fail to bind, and return false. @par

Attempts to get the ViewHolder for the given position, either from the Recycler scrap, cache, the RecycledViewPool, or creating it directly. <p> If a

Unregister an observer currently listening for data changes. <p>The unregistered observer will no longer receive events about changes to the adapter.

Appends the given adapter to the existing list of adapters and notifies the observers of this {@link ConcatAdapter}. @param adapter The new adapter t

Add edge diagonals so that we can iterate as long as there are diagonals w/o lots of null checks around

Register a listener that will be notified whenever a child view is attached to or detached from RecyclerView. <p>This listener will be called when a

Adds the given ViewHolder to the appeared in pre layout list. These are Views added by the LayoutManager during a pre-layout pass. We distinguish them