Summary: Constants | Ctors | Methods | Inherited Methods

DividerItemDecoration

public class DividerItemDecoration
extends RecyclerView.ItemDecoration

java.lang.Object
↳	androidx.recyclerview.widget.RecyclerView.ItemDecoration
	↳	androidx.recyclerview.widget.DividerItemDecoration

---

DividerItemDecoration is a RecyclerView.ItemDecoration that can be used as a divider between items of a LinearLayoutManager. It supports both HORIZONTAL and VERTICAL orientations.

     mDividerItemDecoration = new DividerItemDecoration(recyclerView.getContext(),
             mLayoutManager.getOrientation());
     recyclerView.addItemDecoration(mDividerItemDecoration);
 

Summary

Constants
int	HORIZONTAL
int	VERTICAL

Public constructors
DividerItemDecoration(Context context, int orientation) Creates a divider RecyclerView.ItemDecoration that can be used with a LinearLayoutManager.

Public methods
void	getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) Retrieve any offsets for the given item.
void	onDraw(Canvas c, RecyclerView parent, RecyclerView.State state) Draw any appropriate decorations into the Canvas supplied to the RecyclerView.
void	setDrawable(Drawable drawable) Sets the Drawable for this divider.
void	setOrientation(int orientation) Sets the orientation for this divider.

Inherited methods
From class androidx.recyclerview.widget.RecyclerView.ItemDecoration void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) Retrieve any offsets for the given item. void getItemOffsets(Rect outRect, int itemPosition, RecyclerView parent) This method is deprecated. Use getItemOffsets(Rect, View, RecyclerView, State) void onDraw(Canvas c, RecyclerView parent, RecyclerView.State state) Draw any appropriate decorations into the Canvas supplied to the RecyclerView. void onDraw(Canvas c, RecyclerView parent) This method is deprecated. Override onDraw(Canvas, RecyclerView, RecyclerView.State) void onDrawOver(Canvas c, RecyclerView parent, RecyclerView.State state) Draw any appropriate decorations into the Canvas supplied to the RecyclerView. void onDrawOver(Canvas c, RecyclerView parent) This method is deprecated. Override onDrawOver(Canvas, RecyclerView, RecyclerView.State)
From class java.lang.Object Object clone() boolean equals(Object arg0) void finalize() final Class<?> getClass() int hashCode() final void notify() final void notifyAll() String toString() final void wait(long arg0, int arg1) final void wait(long arg0) final void wait()

Constants

HORIZONTAL

public static final int HORIZONTAL

Constant Value: 0 (0x00000000)

VERTICAL

public static final int VERTICAL

Constant Value: 1 (0x00000001)

Public constructors

DividerItemDecoration

public DividerItemDecoration (Context context, 
                int orientation)

Creates a divider RecyclerView.ItemDecoration that can be used with a LinearLayoutManager.

Parameters
context	Context: Current context, it will be used to access resources.
orientation	int: Divider orientation. Should be HORIZONTAL or VERTICAL.

Public methods

getItemOffsets

public void getItemOffsets (Rect outRect, 
                View view, 
                RecyclerView parent, 
                RecyclerView.State state)

Retrieve any offsets for the given item. Each field of outRect specifies the number of pixels that the item view should be inset by, similar to padding or margin. The default implementation sets the bounds of outRect to 0 and returns.

If this ItemDecoration does not affect the positioning of item views, it should set all four fields of outRect (left, top, right, bottom) to zero before returning.

If you need to access Adapter for additional data, you can call RecyclerView.getChildAdapterPosition(View) to get the adapter position of the View.

Parameters
outRect	Rect: Rect to receive the output.
view	View: The child view to decorate
parent	RecyclerView: RecyclerView this ItemDecoration is decorating
state	RecyclerView.State: The current state of RecyclerView.

onDraw

public void onDraw (Canvas c, 
                RecyclerView parent, 
                RecyclerView.State state)

Draw any appropriate decorations into the Canvas supplied to the RecyclerView. Any content drawn by this method will be drawn before the item views are drawn, and will thus appear underneath the views.

Parameters
c	Canvas: Canvas to draw into
parent	RecyclerView: RecyclerView this ItemDecoration is drawing into
state	RecyclerView.State: The current state of RecyclerView

setDrawable

public void setDrawable (Drawable drawable)

Sets the Drawable for this divider.

Parameters
drawable	Drawable: Drawable that should be used as a divider.

setOrientation

public void setOrientation (int orientation)

Sets the orientation for this divider. This should be called if RecyclerView.LayoutManager changes orientation.

Parameters
orientation	int: HORIZONTAL or VERTICAL

• Annotations

  • RecyclerView.EdgeEffectFactory.EdgeDirection
  • RecyclerView.ItemAnimator.AdapterChanges

• Interfaces

  • AsyncListDiffer.ListListener
  • ItemTouchHelper.ViewDropHandler
  • ItemTouchUIUtil
  • ListUpdateCallback
  • RecyclerView.ChildDrawingOrderCallback
  • RecyclerView.ItemAnimator.ItemAnimatorFinishedListener
  • RecyclerView.LayoutManager.LayoutPrefetchRegistry
  • RecyclerView.OnChildAttachStateChangeListener
  • RecyclerView.OnItemTouchListener
  • RecyclerView.RecyclerListener
  • RecyclerView.SmoothScroller.ScrollVectorProvider

• Classes

  • AdapterListUpdateCallback
  • AsyncDifferConfig
  • AsyncDifferConfig.Builder
  • AsyncListDiffer
  • AsyncListUtil
  • AsyncListUtil.DataCallback
  • AsyncListUtil.ViewCallback
  • BatchingListUpdateCallback
  • DefaultItemAnimator
  • DiffUtil
  • DiffUtil.Callback
  • DiffUtil.DiffResult
  • DiffUtil.ItemCallback
  • DividerItemDecoration
  • GridLayoutManager
  • GridLayoutManager.DefaultSpanSizeLookup
  • GridLayoutManager.LayoutParams
  • GridLayoutManager.SpanSizeLookup
  • ItemTouchHelper
  • ItemTouchHelper.Callback
  • ItemTouchHelper.SimpleCallback
  • LinearLayoutManager
  • LinearLayoutManager.LayoutChunkResult
  • LinearSmoothScroller
  • LinearSnapHelper
  • ListAdapter
  • OrientationHelper
  • PagerSnapHelper
  • RecyclerView
  • RecyclerView.Adapter
  • RecyclerView.AdapterDataObserver
  • RecyclerView.EdgeEffectFactory
  • RecyclerView.ItemAnimator
  • RecyclerView.ItemAnimator.ItemHolderInfo
  • RecyclerView.ItemDecoration
  • RecyclerView.LayoutManager
  • RecyclerView.LayoutManager.Properties
  • RecyclerView.LayoutParams
  • RecyclerView.OnFlingListener
  • RecyclerView.OnScrollListener
  • RecyclerView.RecycledViewPool
  • RecyclerView.Recycler
  • RecyclerView.SimpleOnItemTouchListener
  • RecyclerView.SmoothScroller
  • RecyclerView.SmoothScroller.Action
  • RecyclerView.State
  • RecyclerView.ViewCacheExtension
  • RecyclerView.ViewHolder
  • RecyclerViewAccessibilityDelegate
  • RecyclerViewAccessibilityDelegate.ItemDelegate
  • SimpleItemAnimator
  • SnapHelper
  • SortedList
  • SortedList.BatchedCallback
  • SortedList.Callback
  • SortedListAdapterCallback
  • StaggeredGridLayoutManager
  • StaggeredGridLayoutManager.LayoutParams