How to add dividers and spaces between items in RecyclerView

Question

This is an example of how it could have been done previously in the ListView class  using the divider and dividerHeight parameters    lt ListView     android id    id activity home list view      android layout width  match parent       android layout height  match parent      android divider   android color transparent      android dividerHeight  8dp   gt    However  I don t see such possibility in the RecyclerView class    lt android support v7 widget RecyclerView     android id    id activity home recycler view      android layout width  match parent      android layout height  match parent      android scrollbars  vertical   gt    In that case  is it ok to define margins and or add a custom divider view directly into a list item s layout or is there a better way to achieve my goal

User · Answer

public class CommonItemSpaceDecoration extends RecyclerView.ItemDecoration {

        private int mSpace = 0;
        private boolean mVerticalOrientation = true;

    public CommonItemSpaceDecoration(int space) {
        this.mSpace = space;
    }

    public CommonItemSpaceDecoration(int space, boolean verticalOrientation) {
        this.mSpace = space;
        this.mVerticalOrientation = verticalOrientation;
    }

    @Override
    public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) {
        outRect.top = SizeUtils.dp2px(view.getContext(), mSpace);
        if (mVerticalOrientation) {
            if (parent.getChildAdapterPosition(view) == 0) {
                outRect.set(0, SizeUtils.dp2px(view.getContext(), mSpace), 0, SizeUtils.dp2px(view.getContext(), mSpace));
            } else {
                outRect.set(0, 0, 0, SizeUtils.dp2px(view.getContext(), mSpace));
            }
        } else {
            if (parent.getChildAdapterPosition(view) == 0) {
                outRect.set(SizeUtils.dp2px(view.getContext(), mSpace), 0, 0, 0);
            } else {
                outRect.set(SizeUtils.dp2px(view.getContext(), mSpace), 0, SizeUtils.dp2px(view.getContext(), mSpace), 0);
            }
        }
    }
}

This will add space in every item's top and bottom(or left and right).Then you can set it to your recyclerView.

recyclerView.addItemDecoration(new CommonItemSpaceDecoration(16));

SizeUtils.java

public class SizeUtils {
    public static int dp2px(Context context, float dpValue) {
        final float scale = context.getResources().getDisplayMetrics().density;
        return (int) (dpValue * scale + 0.5f);
    }
}

User · Answer

public class VerticalItemDecoration extends RecyclerView ItemDecoration    private boolean verticalOrientation   true  private int space   10   public VerticalItemDecoration int value  boolean verticalOrientation        this space   value      this verticalOrientation   verticalOrientation      Override public void getItemOffsets Rect outRect  View view  RecyclerView parent                             RecyclerView State state          skip first item in the list     if  parent getChildAdapterPosition view     0            if  verticalOrientation                outRect set space  0  0  0             else if   verticalOrientation                outRect set 0  space  0  0                           mCompletedShippingRecyclerView addItemDecoration new VerticalItemDecoration 20 false

User · Answer

PrimeAdapter  By using PrimeAdapter  handling dividers in RecyclerViews could be so simple  It provides multiple functionality and more flexibility to create and manage dividers   You can create an adapter as following   Please see complete doc about usage in github   val adapter   PrimeAdapter with recyclerView                       setLayoutManager LinearLayoutManager activity                        set                        build ActorAdapter  class java    After creating an adapter instance  you can simply add divider simply by using     ----- default divider  adapter setDivider      ----- divider with custom drawable  adapter setDivider ContextCompat getDrawable context  R drawable divider      ----- divider with custom color  adapter setDivider Color RED     ----- divider with custom color and custom inset  adapter setDivider Color RED  insetLeft   16  insetRight   16     ----- deactivate dividers  adapter setDivider null

User · Answer

For those who are looking just for spaces between items in the RecyclerView see my approach where you get equal spaces between all items  except in first and last items where I gave a bigger padding  I only apply padding to left right in horizontal LayoutManager and to top bottom in vertical LayoutManager   public class PaddingItemDecoration extends RecyclerView ItemDecoration        private int mPaddingPx      private int mPaddingEdgesPx       public PaddingItemDecoration Activity activity            final Resources resources   activity getResources            mPaddingPx    int  resources getDimension R dimen paddingItemDecorationDefault           mPaddingEdgesPx    int  resources getDimension R dimen paddingItemDecorationEdge               Override     public void getItemOffsets Rect outRect  View view  RecyclerView parent  RecyclerView State state            super getItemOffsets outRect  view  parent  state            final int itemPosition   parent getChildAdapterPosition view           if  itemPosition    RecyclerView NO POSITION                return                    int orientation   getOrientation parent           final int itemCount   state getItemCount             int left   0          int top   0          int right   0          int bottom   0               HORIZONTAL            if  orientation    LinearLayoutManager HORIZONTAL                    all positions                left   mPaddingPx              right   mPaddingPx                   first position                if  itemPosition    0                    left    mPaddingEdgesPx                                last position                else if  itemCount  gt  0  amp  amp  itemPosition    itemCount - 1                    right    mPaddingEdgesPx                                      VERTICAL            else                   all positions                top   mPaddingPx              bottom   mPaddingPx                   first position                if  itemPosition    0                    top    mPaddingEdgesPx                                last position                else if  itemCount  gt  0  amp  amp  itemPosition    itemCount - 1                    bottom    mPaddingEdgesPx                                   if   isReverseLayout parent                 outRect set left  top  right  bottom             else               outRect set right  bottom  left  top                        private boolean isReverseLayout RecyclerView parent            if  parent getLayoutManager   instanceof LinearLayoutManager                LinearLayoutManager layoutManager    LinearLayoutManager  parent getLayoutManager                return layoutManager getReverseLayout              else               throw new IllegalStateException  PaddingItemDecoration can only be used with a LinearLayoutManager                          private int getOrientation RecyclerView parent            if  parent getLayoutManager   instanceof LinearLayoutManager                LinearLayoutManager layoutManager    LinearLayoutManager  parent getLayoutManager                return layoutManager getOrientation              else               throw new IllegalStateException  PaddingItemDecoration can only be used with a LinearLayoutManager                         dimens xml   lt resources gt       lt dimen name  paddingItemDecorationDefault  gt 10dp lt  dimen gt       lt dimen name  paddingItemDecorationEdge  gt 20dp lt  dimen gt   lt  resources gt

User · Answer

just add this line after init the recycler view object   in Fragment    mRecyclerView addItemDecoration new DividerItemDecoration getActivity   android R drawable divider horizontal bright      in Activity  mRecyclerView addItemDecoration new DividerItemDecoration this android R drawable divider horizontal bright      Divider Item Decoration  public class DividerItemDecoration extends RecyclerView ItemDecoration   public static final int VERTICAL LIST   0   public DividerItemDecoration ListActivity listActivity  Object p1       private static final int   ATTRS   new int   android R attr listDivider    private Drawable mDivider          Default divider will be used     public DividerItemDecoration Context context        final TypedArray styledAttributes   context obtainStyledAttributes ATTRS       mDivider   styledAttributes getDrawable 0       styledAttributes recycle              Custom divider will be used     public DividerItemDecoration Context context  int resId        mDivider   ContextCompat getDrawable context  resId       Override public void onDraw Canvas c  RecyclerView parent  RecyclerView State state        int left   parent getPaddingLeft        int right   parent getWidth   - parent getPaddingRight         int childCount   parent getChildCount        for  int i   0  i  lt  childCount  i              View child   parent getChildAt i            RecyclerView LayoutParams params    RecyclerView LayoutParams  child getLayoutParams             int top   child getBottom     params bottomMargin          int bottom   top   mDivider getIntrinsicHeight             mDivider setBounds left  top  right  bottom           mDivider draw c

User · Answer

Use this class to set divider in your RecyclerView    public class GridSpacingItemDecoration extends RecyclerView ItemDecoration            private int spanCount          private int spacing          private boolean includeEdge           public GridSpacingItemDecoration int spanCount  int spacing  boolean includeEdge                this spanCount   spanCount              this spacing   spacing              this includeEdge   includeEdge                      Override         public void getItemOffsets Rect outRect  View view  RecyclerView parent  RecyclerView State state                int position   parent getChildAdapterPosition view      item position             int column   position   spanCount     item column              if  includeEdge                    outRect left   spacing - column   spacing   spanCount     spacing - column     1f   spanCount    spacing                  outRect right    column   1    spacing   spanCount      column   1      1f   spanCount    spacing                   if  position  lt  spanCount       top edge                     outRect top   spacing                                    outRect bottom   spacing     item bottom               else                   outRect left   column   spacing   spanCount     column     1f   spanCount    spacing                  outRect right   spacing -  column   1    spacing   spanCount     spacing -  column   1      1f      spanCount    spacing                  if  position  gt   spanCount                        outRect top   spacing     item top

User · Answer

Simple ItemDecoration implementation for equal spaces between all items   public class SpacesItemDecoration extends RecyclerView ItemDecoration       private int space       public SpacesItemDecoration int space            this space   space              Override     public void getItemOffsets Rect outRect  View view  RecyclerView parent  RecyclerView State state            outRect left   space          outRect right   space          outRect bottom   space              Add top margin only for the first item to avoid double space between items         if parent getChildAdapterPosition view     0                outRect top   space

User · Answer

If you want to add same space for items  the simplest way is to add top left padding for RecycleView and right bottom margins to card items   dimens xml   lt resources gt       lt dimen name  divider  gt 1dp lt  dimen gt   lt  resources gt    list item xml   lt CardView  android layout marginBottom   dimen divider   android layout marginRight   dimen divider  gt        lt  CardView gt    list xml   lt RecyclerView  android paddingLeft   dimen divider   android paddingTop   dimen divider    gt

User · Answer

October 2016 Update The version 25 0 0 of Android Support Library introduced DividerItemDecoration class   DividerItemDecoration is a RecyclerView ItemDecoration that can be used as a divider between items of a LinearLayoutManager  It supports both HORIZONTAL and VERTICAL orientations   Usage  DividerItemDecoration dividerItemDecoration   new DividerItemDecoration recyclerView getContext        layoutManager getOrientation     recyclerView addItemDecoration dividerItemDecoration     Previous answer Some answers either use methods that have since become deprecated  or don t give a complete solution  so I tried to do a short  up-to-date wrap-up   Unlike ListView  the RecyclerView class has no divider-related parameters  Instead  you need to extend ItemDecoration  a RecyclerView s inner class   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 useful for drawing dividers between items  highlights  visual grouping boundaries and more  All ItemDecorations are drawn in the order they were added  before the item views  in onDraw    and after the items  in onDrawOver Canvas  RecyclerView  RecyclerView State    Vertical spacing ItemDecoration Extend ItemDecoration  add custom constructor which takes space height as a parameter and override getItemOffsets   method  public class VerticalSpaceItemDecoration extends RecyclerView ItemDecoration        private final int verticalSpaceHeight       public VerticalSpaceItemDecoration int verticalSpaceHeight            this verticalSpaceHeight   verticalSpaceHeight              Override     public void getItemOffsets Rect outRect  View view  RecyclerView parent              RecyclerView State state            outRect bottom   verticalSpaceHeight           If you don t want to insert space below the last item  add the following condition  if  parent getChildAdapterPosition view     parent getAdapter   getItemCount   - 1                outRect bottom   verticalSpaceHeight     Note  you can also modify outRect top  outRect left and outRect right properties for desired effect  Divider ItemDecoration Extend ItemDecoration and override onDraw   method  public class DividerItemDecoration extends RecyclerView ItemDecoration        private static final int   ATTRS   new int   android R attr listDivider        private Drawable divider                  Default divider will be used             public DividerItemDecoration Context context            final TypedArray styledAttributes   context obtainStyledAttributes ATTRS           divider   styledAttributes getDrawable 0           styledAttributes recycle                          Custom divider will be used             public DividerItemDecoration Context context  int resId            divider   ContextCompat getDrawable context  resId               Override     public void onDraw Canvas c  RecyclerView parent  RecyclerView State state            int left   parent getPaddingLeft            int right   parent getWidth   - parent getPaddingRight             int childCount   parent getChildCount            for  int i   0  i  lt  childCount  i                  View child   parent getChildAt i                RecyclerView LayoutParams params    RecyclerView LayoutParams  child getLayoutParams                 int top   child getBottom     params bottomMargin              int bottom   top   divider getIntrinsicHeight                 divider setBounds left  top  right  bottom               divider draw c                      You can either call the first constructor that uses the default Android divider attributes  or the second one that uses your own drawable  for example drawable divider xml  lt  xml version  quot 1 0 quot  encoding  quot utf-8 quot   gt   lt shape xmlns android  quot http   schemas android com apk res android quot         android shape  quot rectangle quot  gt       lt size android height  quot 1dp quot    gt       lt solid android color  quot  ff992900 quot    gt   lt  shape gt   Note  if you want the divider to be drawn over your items  override onDrawOver   method instead  Usage To use your new class add VerticalSpaceItemDecoration or DividerSpaceItemDecoration to RecyclerView  for example in your fragment s onCreateView   method  private static final int VERTICAL ITEM SPACE   48  private RecyclerView recyclerView  private LinearLayoutManager linearLayoutManager   Override public View onCreateView LayoutInflater inflater  ViewGroup container          Bundle savedInstanceState        View rootView   inflater inflate R layout fragment feed  container  false        recyclerView    RecyclerView  rootView findViewById R id fragment home recycler view       linearLayoutManager   new LinearLayoutManager getActivity         recyclerView setLayoutManager linearLayoutManager              add ItemDecoration     recyclerView addItemDecoration new VerticalSpaceItemDecoration VERTICAL ITEM SPACE          or     recyclerView addItemDecoration new DividerItemDecoration getActivity            or     recyclerView addItemDecoration              new DividerItemDecoration getActivity    R drawable divider         recyclerView setAdapter            return rootView      There s also Lucas Rocha s library which is supposed to simplify the item decoration process  Haven t tried it though  Among its features are   A collection of stock item decorations including  Item spacing Horizontal vertical dividers  List item

User · Answer

This link worked like a charm for me   https   gist github com lapastillaroja 858caf1a82791b6c1a36  import android content Context  import android content res TypedArray  import android graphics Canvas  import android graphics Rect  import android graphics drawable Drawable  import android support v7 widget LinearLayoutManager  import android support v7 widget RecyclerView  import android util AttributeSet  import android view View   public class DividerItemDecoration extends RecyclerView ItemDecoration        private Drawable mDivider      private boolean mShowFirstDivider   false      private boolean mShowLastDivider   false        public DividerItemDecoration Context context  AttributeSet attrs            final TypedArray a   context                  obtainStyledAttributes attrs  new int   android R attr listDivider            mDivider   a getDrawable 0           a recycle               public DividerItemDecoration Context context  AttributeSet attrs  boolean showFirstDivider              boolean showLastDivider            this context  attrs           mShowFirstDivider   showFirstDivider          mShowLastDivider   showLastDivider             public DividerItemDecoration Drawable divider            mDivider   divider             public DividerItemDecoration Drawable divider  boolean showFirstDivider              boolean showLastDivider            this divider           mShowFirstDivider   showFirstDivider          mShowLastDivider   showLastDivider              Override     public void getItemOffsets Rect outRect  View view  RecyclerView parent              RecyclerView State state            super getItemOffsets outRect  view  parent  state           if  mDivider    null                return                    if  parent getChildPosition view   lt  1                return                     if  getOrientation parent     LinearLayoutManager VERTICAL                outRect top   mDivider getIntrinsicHeight              else               outRect left   mDivider getIntrinsicWidth                          Override     public void onDrawOver Canvas c  RecyclerView parent  RecyclerView State state            if  mDivider    null                super onDrawOver c  parent  state               return                        Initialization needed to avoid compiler warning         int left   0  right   0  top   0  bottom   0  size          int orientation   getOrientation parent           int childCount   parent getChildCount             if  orientation    LinearLayoutManager VERTICAL                size   mDivider getIntrinsicHeight                left   parent getPaddingLeft                right   parent getWidth   - parent getPaddingRight              else     horizontal             size   mDivider getIntrinsicWidth                top   parent getPaddingTop                bottom   parent getHeight   - parent getPaddingBottom                       for  int i   mShowFirstDivider   0   1  i  lt  childCount  i                  View child   parent getChildAt i               RecyclerView LayoutParams params    RecyclerView LayoutParams  child getLayoutParams                 if  orientation    LinearLayoutManager VERTICAL                    top   child getTop   - params topMargin                  bottom   top   size                else     horizontal                 left   child getLeft   - params leftMargin                  right   left   size                            mDivider setBounds left  top  right  bottom               mDivider draw c                         show last divider         if  mShowLastDivider  amp  amp  childCount  gt  0                View child   parent getChildAt childCount - 1               RecyclerView LayoutParams params    RecyclerView LayoutParams  child getLayoutParams                if  orientation    LinearLayoutManager VERTICAL                    top   child getBottom     params bottomMargin                  bottom   top   size                else      horizontal                 left   child getRight     params rightMargin                  right   left   size                            mDivider setBounds left  top  right  bottom               mDivider draw c                        private int getOrientation RecyclerView parent            if  parent getLayoutManager   instanceof LinearLayoutManager                LinearLayoutManager layoutManager    LinearLayoutManager  parent getLayoutManager                return layoutManager getOrientation              else               throw new IllegalStateException                       DividerItemDecoration can only be used with a LinearLayoutManager                         Then in your activity   mCategoryRecyclerView addItemDecoration      new DividerItemDecoration this  null      Or this if you are using a fragment   mCategoryRecyclerView addItemDecoration      new DividerItemDecoration getActivity    null

User · Answer

Just add recyclerView addItemDecoration new DividerItemDecoration getContext                    DividerItemDecoration VERTICAL     Also you may need to add the dependency implementation  com android support recyclerview-v7 28 0 0  For customizing it a little bit you can add a custom drawable  DividerItemDecoration itemDecorator   new DividerItemDecoration getContext    DividerItemDecoration VERTICAL   itemDecorator setDrawable ContextCompat getDrawable getContext    R drawable divider     You are free to use any custom drawable  for instance   lt shape xmlns android  quot http   schemas android com apk res android quot         android shape  quot rectangle quot  gt       lt solid android color  quot  color colorPrimary quot   gt       lt size android height  quot 0 5dp quot   gt   lt  shape gt

User · Answer

This doesn t actually solve the problem  but as a temporary workaround  you can set the useCompatPadding property on the card in your XML layout to make it measure the same as it does on pre-Lollipop versions   card view cardUseCompatPadding  true

User · Answer

This is simple  you don t need such complicated code   DividerItemDecoration divider   new  DividerItemDecoration mRVMovieReview getContext     DividerItemDecoration VERTICAL   divider setDrawable      ContextCompat getDrawable getBaseContext    R drawable line divider     mRVMovieReview addItemDecoration divider     Add this in your drawable    line divider xml   lt  xml version  1 0  encoding  utf-8   gt   lt shape xmlns android  http   schemas android com apk res android     android shape  rectangle  gt       lt size android height  1dp    gt       lt solid android color   android color black    gt   lt  shape gt

User · Answer

RecyclerView doesn t provide straightforward interface for drawing dividers of lists  But actually it provides us a much more flexible way to draw dividers  We use RecyclerView ItemDecoration to decorate RecyclerView s tiles with dividers or anything you want  That is also why it is called ItemDecoration     As described in Meterial Design Guidelines      The divider sits within the baseline of the tile      So if you want to follow the Material Design Guidelines  you don t need extra space to draw the dividers  Just draw them on the tiles  However  you have the right to do whatever you want to do  So I implemented one which gives you the ability to set insets as well as draw on underneath the tiles   public class InsetDivider extends RecyclerView ItemDecoration        public static final int HORIZONTAL LIST   LinearLayoutManager HORIZONTAL      public static final int VERTICAL LIST   LinearLayoutManager VERTICAL       private Paint mPaint         in pixel     private int mDividerHeight         left inset for vertical list  top inset for horizontal list     private int mFirstInset         right inset for vertical list  bottom inset for horizontal list     private int mSecondInset      private int mColor      private int mOrientation         set it to true to draw divider on the tile  or false to draw beside the tile         if you set it to false and have inset at the same time  you may see the background of        the parent of RecyclerView      private boolean mOverlay       private InsetDivider             mPaint   new Paint Paint ANTI ALIAS FLAG           mPaint setStyle Paint Style FILL              public int getDividerHeight             return mDividerHeight             public void setDividerHeight int dividerHeight            this mDividerHeight   dividerHeight             public int getFirstInset             return mFirstInset             public void setFirstInset int firstInset            this mFirstInset   firstInset             public int getSecondInset             return mSecondInset             public void setSecondInset int secondInset            this mSecondInset   secondInset             public int getColor             return mColor             public void setColor int color            this mColor   color          mPaint setColor color              public int getOrientation             return mOrientation             public void setOrientation int orientation            this mOrientation   orientation             public boolean getOverlay             return mOverlay             public void setOverlay boolean overlay            this mOverlay   overlay              Override     public void onDrawOver Canvas c  RecyclerView parent  RecyclerView State state            if  mOrientation    VERTICAL LIST                drawVertical c  parent             else               drawHorizontal c  parent                        protected void drawVertical Canvas c  RecyclerView parent            final int left   parent getPaddingLeft     mFirstInset          final int right   parent getWidth   - parent getPaddingRight   - mSecondInset          final int childCount   parent getChildCount            for  int i   0  i  lt  childCount  i                  final View child   parent getChildAt i               if  parent getChildAdapterPosition child      parent getAdapter   getItemCount   - 1                     continue                            final RecyclerView LayoutParams params    RecyclerView LayoutParams  child getLayoutParams                final int bottom              final int top              if  mOverlay                    bottom   child getBottom     params bottomMargin   Math round ViewCompat getTranslationY child                    top   bottom - mDividerHeight                else                   top   child getBottom     params bottomMargin   Math round ViewCompat getTranslationY child                    bottom   top   mDividerHeight                            c drawRect left  top  right  bottom  mPaint                        protected void drawHorizontal Canvas c  RecyclerView parent            final int top   parent getPaddingTop     mFirstInset          final int bottom   parent getHeight   - parent getPaddingBottom   - mSecondInset          final int childCount   parent getChildCount            for  int i   0  i  lt  childCount  i                  final View child   parent getChildAt i               if  parent getChildAdapterPosition child      parent getAdapter   getItemCount   - 1                     continue                            final RecyclerView LayoutParams params    RecyclerView LayoutParams  child                  getLayoutParams                final int right              final int left              if  mOverlay                    right   child getRight     params rightMargin   Math round ViewCompat getTranslationX child                    left   right - mDividerHeight                else                   left   child getRight     params rightMargin   Math round ViewCompat getTranslationX child                    right   left   mDividerHeight                            c drawRect left  top  right  bottom  mPaint                         Override     public void getItemOffsets Rect outRect  View view  RecyclerView parent  RecyclerView State state            if  mOverlay                super getItemOffsets outRect  view  parent  state               return                     if  mOrientation    VERTICAL LIST                outRect set 0  0  0  mDividerHeight             else               outRect set 0  0  mDividerHeight  0                                   Handy builder for creating   link InsetDivider  instance              public static class Builder            private Context mContext          private int mDividerHeight          private int mFirstInset          private int mSecondInset          private int mColor          private int mOrientation          private boolean mOverlay   true     set default to true to follow Material Design Guidelines          public Builder Context context                mContext   context                     public Builder dividerHeight int dividerHeight                mDividerHeight   dividerHeight              return this                     public Builder insets int firstInset  int secondInset                mFirstInset   firstInset              mSecondInset   secondInset              return this                     public Builder color  ColorInt int color                mColor   color              return this                     public Builder orientation int orientation                mOrientation   orientation              return this                     public Builder overlay boolean overlay                mOverlay   overlay              return this                     public InsetDivider build                 InsetDivider insetDivider   new InsetDivider                 if  mDividerHeight    0                       Set default divider height to 1dp                   insetDivider setDividerHeight mContext getResources   getDimensionPixelSize R dimen divider height                  else if  mDividerHeight  gt  0                    insetDivider setDividerHeight mDividerHeight                 else                   throw new IllegalArgumentException  Divider s height can t be negative                                insetDivider setFirstInset mFirstInset  lt  0   0   mFirstInset               insetDivider setSecondInset mSecondInset  lt  0   0   mSecondInset                if  mColor    0                    throw new IllegalArgumentException  Don t forget to set color                  else                   insetDivider setColor mColor                              if  mOrientation    InsetDivider HORIZONTAL LIST  amp  amp  mOrientation    InsetDivider VERTICAL LIST                    throw new IllegalArgumentException  Invalid orientation                  else                   insetDivider setOrientation mOrientation                              insetDivider setOverlay mOverlay                return insetDivider                      And you can use it like this   ItemDecoration divider   new InsetDivider Builder this                               orientation InsetDivider VERTICAL LIST                                dividerHeight getResources   getDimensionPixelSize R dimen divider height                                color getResources   getColor R color colorAccent                                insets getResources   getDimensionPixelSize R dimen divider inset   0                               overlay true                               build      RecyclerView recyclerView    RecyclerView  findViewById R id recycler view   recyclerView setLayoutManager new LinearLayoutManager this    recyclerView addItemDecoration divider     I also wrote a demo App about how to implement ItemDecoration and how to use them  You can check out my GitHub repo Dividers-For-RecyclerView  There are three implementations in it    UnderneathDivider OverlayDivider InsetDivider

User · Answer

As I have set ItemAnimators  The ItemDecorator don t enter or exit along with the animation   I simply ended up in having a view line in my item view layout file of each item  It solved my case  DividerItemDecoration felt to be too much of sorcery for a simple divider    lt View     android layout width  match parent      android layout height  1px      android layout marginLeft  5dp      android layout marginRight  5dp      android background   color lt gray   gt

User · Answer

The way how I m handling the Divider view and also Divider Insets is by adding a RecyclerView extension   1   Add a new extension file by naming View or RecyclerView   RecyclerViewExtension kt   and add the setDivider extension method inside the RecyclerViewExtension kt file        RecyclerViewExtension kt      import androidx annotation DrawableRes import androidx core content ContextCompat import androidx recyclerview widget DividerItemDecoration import androidx recyclerview widget RecyclerView   fun RecyclerView setDivider  DrawableRes drawableRes  Int        val divider   DividerItemDecoration          this context          DividerItemDecoration VERTICAL           val drawable   ContextCompat getDrawable          this context          drawableRes           drawable  let           divider setDrawable it          addItemDecoration divider            2   Create a Drawable resource file inside of drawable package like recycler view divider xml    lt inset xmlns android  http   schemas android com apk res android      android insetLeft  10dp      android insetRight  10dp  gt        lt shape gt           lt size android height  0 5dp    gt           lt solid android color   android color darker gray    gt       lt  shape gt    lt  inset gt    where you can specify the left and right margin on android insetLeft and android insetRight   3   On your Activity or Fragment where the RecyclerView is initialized  you can set the custom drawable by calling   recyclerView setDivider R drawable recycler view divider    4   Cheers

User · Answer

Since there is no right way to implement this yet properly using Material Design  I just did the following trick to add a divider on the list item directly    lt View android layout width  match parent  android layout height  1dp  android background   color dividerColor   gt

User · Answer

Here s my lazy approach but it works  wrap the CardView in a layout and set a padding margin on the parent layout to mimic the divider  and force the normal divider to null  list item xml   lt LinearLayout     android id    id entry item layout container      android layout width  match parent      android layout height  wrap content      android orientation  vertical      android paddingBottom   lt divider size gt    gt     this is the divider      lt CardView         android layout width   lt width size gt           android layout height   lt height size gt   gt                   lt  CardView gt   lt  LinearLayout   list xml   lt RecyclerView  android divider   null   android layout width   lt width size gt    android layout height   lt height size gt          gt

User · Answer

If anyone is looking to only add  say  10dp spacing between items  you can do so by setting a drawable to DividerItemDecoration   DividerItemDecoration dividerItemDecoration   new DividerItemDecoration      recyclerView getContext        layoutManager getOrientation       dividerItemDecoration setDrawable      ContextCompat getDrawable getContext    R drawable divider 10dp        Where divider 10dpis a drawable resource containing    lt shape xmlns android  http   schemas android com apk res android  android shape  rectangle  gt       lt size android height  10dp   gt       lt solid android color   android color transparent   gt   lt  shape gt

User · Answer

I feel like there s a need for a simple  code-based answer that doesn t use XML DividerItemDecoration dividerItemDecoration   new DividerItemDecoration recyclerView getContext    DividerItemDecoration VERTICAL    ShapeDrawable shapeDrawableForDivider   new ShapeDrawable new RectShape      int dividerThickness       int   SomeOtherView getHeight     desiredPercent   shapeDrawableForDivider setIntrinsicHeight dividerThickness   shapeDrawableForDivider setAlpha 0    dividerItemDecoration setDrawable shapeDrawableForDivider    recyclerView addItemDecoration dividerItemDecoration    I love this answer so much  I re-wrote it in a single-expression Kotlin answer      recyclerView addItemDecoration DividerItemDecoration this DividerItemDecoration VERTICAL  also   deco - gt          with  ShapeDrawable RectShape                  intrinsicHeight    resources displayMetrics density   24  toInt               alpha   0             deco setDrawable this                    This does the same thing as  Nerdy s original answer  except it sets the height of the divider to 24dp instead of a percentage of another view s height

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In order to accomplish spacing between items in a RecylerView  we can use ItemDecorators  addItemDecoration object   RecyclerView ItemDecoration          override fun getItemOffsets          outRect  Rect          view  View          parent  RecyclerView          state  RecyclerView State                  super getItemOffsets outRect  view  parent  state          if  parent getChildAdapterPosition view   gt  0                outRect top   8 dp    Change this value with anything you want  Remember that you need to convert integers to pixels if you are working with dps                        A few things to have in consideration given the code I pasted   You don t really need to call super getItemOffsets but I chose to  because I want to extend the behavior defined by the base class  If the library got an update doing more logic behind the scenes  we would miss it   As an alternative to adding top spacing to the Rect  you could also add bottom spacing  but the logic related to getting the last item of the adapter is more complex  so this might be slightly better   I used an extension property to convert a simple integer to dps  8 dp  Something like this might work    val Int dp  Int     get      this   Resources getSystem   displayMetrics density   0 5f  toInt       Extension function works too  but invoking it would become something like 8 dp

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The RecyclerView is a bit different from the ListView  Actually  the RecyclerView needs a ListView like structure in it  For example  a LinearLayout  The LinearLayout has parameters for the dividing each element  In the code below I have a RecyclerView comprised of CardView objects within a LinearLayout with a  padding  that will put some space between items  Make that space really small and you get a line   Here s the Recycler view in recyclerview layout xml   lt RelativeLayout xmlns android  http   schemas android com apk res android      xmlns tools  http   schemas android com tools  android layout width  match parent      android layout height  match parent  android paddingLeft   dimen activity horizontal margin      android paddingRight   dimen activity horizontal margin      android paddingTop   dimen activity vertical margin      android paddingBottom   dimen activity vertical margin  tools context   ToDoList  gt        lt  -- A RecyclerView with some commonly used attributes -- gt       lt android support v7 widget RecyclerView         android id    id todo recycler view          android scrollbars  vertical          android layout width  match parent          android layout height  match parent   gt    lt  RelativeLayout gt    And here is what each item looks like  and it shows as divided due to the android padding in the LinearLayout that surrounds everything   in another file  cards layout xml   lt  xml version  1 0  encoding  utf-8   gt   lt LinearLayout xmlns android  http   schemas android com apk res android      android orientation  vertical  android layout width  match parent      android layout height  match parent        android padding   dimen activity vertical margin    gt       lt  -- A CardView that contains a TextView -- gt       lt android support v7 widget CardView         xmlns card view  http   schemas android com apk res-auto          android id    id card view          android layout gravity  center          android layout width  match parent          android layout height  100dp          android elevation  30dp          card view cardElevation  3dp  gt               lt TextView                 android id    id info text                  android layout width  match parent                  android layout height  match parent                    gt       lt  android support v7 widget CardView gt   lt  LinearLayout gt

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You can add with programaticly easily   If your Layout Manager is Linearlayout then you can use      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     source

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Here is simple hack to add divider   Just add a background to the layout of your recycler item as follows   lt  xml version  1 0  encoding  utf-8   gt   lt LinearLayout xmlns android  http   schemas android com apk res android      android layout width  match parent      android layout height  wrap content      android background   drawable shape border      android gravity  center      android orientation  horizontal      android padding  5dp  gt    lt ImageView     android id    id imageViewContactLogo      android layout width  60dp      android layout height  60dp      android layout marginRight  10dp      android src   drawable ic user    gt    lt LinearLayout     android id    id linearLayout      android layout width  wrap content      android layout height  wrap content      android layout weight  0 92      android gravity  center start      android orientation  vertical  gt    lt TextView     android id    id textViewContactName      android layout width  wrap content      android layout height  wrap content      android singleLine  true      android text  Large Text      android textAppearance   android attr textAppearanceLarge    gt    lt TextView     android id    id textViewStatusOrNumber      android layout width  wrap content      android layout height  wrap content      android layout marginTop  5dp      android singleLine  true      android text        android textAppearance   android attr textAppearanceMedium    gt   lt  LinearLayout gt    lt TextView     android id    id textViewUnreadCount      android layout width  wrap content      android layout height  wrap content      android layout marginRight  10dp      android padding  5dp      android text        android textAppearance   android attr textAppearanceMedium      android textColor   color red      android textSize  22sp    gt    lt Button     android id    id buttonInvite      android layout width  54dp      android layout height  wrap content      android background   drawable ic add friend    gt   lt  LinearLayout gt     Create following  shape border xml in drawable folder     lt  xml version  1 0  encoding  utf-8   gt       lt shape xmlns android  http   schemas android com apk res android        android shape  rectangle   gt          lt gradient         android angle  270          android centerColor   android color transparent          android centerX  0 01          android startColor   000    gt       lt  shape gt    Here is final result - a RecyclerView with divider

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I have added a line in list item like below   lt View android id    id divider  android layout width  match parent  android layout height  1px  android background   color dividerColor   gt    1px will draw the thin line       If you want to hide the divider for the last row then divider setVisiblity View GONE   on the onBindViewHolder for the last list Item

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Here s how I would do it in Kotlin  for simple space between Items with default size of 10dp   class SimpleItemDecoration context  Context  space  Int   10    RecyclerView ItemDecoration          private val spaceInDp   ConvertUtil dpToPx context  space       override fun getItemOffsets outRect  Rect  view  View  parent  RecyclerView  state  RecyclerView State             outRect left   spaceInDp         outRect right   spaceInDp         outRect bottom   spaceInDp            Add top margin only for the first item to avoid double space between items         if  parent getChildAdapterPosition view     0                outRect top   spaceInDp                     and here is the dpToPx method   fun dpToPx context  Context  dp  Int   Int           return  dp   context resources displayMetrics density  toInt

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We can decorate the items using various decorators attached to the recyclerview such as the DividerItemDecoration   Simply use the following    taken from the answer by EyesClear  public class DividerItemDecoration extends RecyclerView ItemDecoration    private static final int   ATTRS   new int   android R attr listDivider    private Drawable mDivider          Default divider will be used     public DividerItemDecoration Context context        final TypedArray styledAttributes   context obtainStyledAttributes ATTRS       mDivider   styledAttributes getDrawable 0       styledAttributes recycle              Custom divider will be used     public DividerItemDecoration Context context  int resId        mDivider   ContextCompat getDrawable context  resId       Override public void onDraw Canvas c  RecyclerView parent  RecyclerView State state        int left   parent getPaddingLeft        int right   parent getWidth   - parent getPaddingRight         int childCount   parent getChildCount        for  int i   0  i  lt  childCount  i              View child   parent getChildAt i            RecyclerView LayoutParams params    RecyclerView LayoutParams  child getLayoutParams             int top   child getBottom     params bottomMargin          int bottom   top   mDivider getIntrinsicHeight             mDivider setBounds left  top  right  bottom           mDivider draw c               and then use the above as follows  RecyclerView ItemDecoration itemDecoration   new DividerItemDecoration this  DividerItemDecoration VERTICAL LIST   recyclerView addItemDecoration itemDecoration     This will display dividers between each item within the list as shown below     And for those of who are looking for more details can check out this guide  Using the RecyclerView   CodePath Android Cliffnotes  Some answers here suggest the use of margins but the catch is that   If you add both top and bottom margins  they will appear both added between items and they will be too large  If you only add either  there will be no margin either at the top or the bottom of the whole list  If you add half of the distance at the top  half at the bottom  the outer margins will be too small    Thus  the only aesthetically correct solution is the divider that the system knows where to apply properly  between items but not above or below items   Please let me know of any doubts in the comments below

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I think using simple divider will help you To add divider to each item  1- Add this to drawable directory line divider xml   lt  xml version  1 0  encoding  utf-8   gt   lt shape xmlns android  http   schemas android com apk res android  android shape  rectangle  gt   lt size     android width  1dp      android height  1dp    gt   lt solid android color   999999    gt   lt  shape gt    2- Create SimpleDividerItemDecoration class I used this example to define this class  https   gist github com polbins e37206fbc444207c0e92   package com example myapp  import android content Context  import android content res Resources  import android graphics Canvas  import android graphics drawable Drawable  import android support v7 widget RecyclerView  import android view View  import com example myapp R   public class SimpleDividerItemDecoration extends RecyclerView ItemDecoration  private Drawable mDivider   public SimpleDividerItemDecoration Resources resources        mDivider   resources getDrawable R drawable line divider      public void onDrawOver Canvas c  RecyclerView parent  RecyclerView State state        int left   parent getPaddingLeft        int right   parent getWidth   - parent getPaddingRight         int childCount   parent getChildCount        for  int i   0  i  lt  childCount  i              View child   parent getChildAt i            RecyclerView LayoutParams params    RecyclerView LayoutParams  child getLayoutParams             int top   child getBottom     params bottomMargin          int bottom   top   mDivider getIntrinsicHeight             mDivider setBounds left  top  right  bottom           mDivider draw c                 3- In activity or fragment that using RecyclerView  inside onCreateView add this    Override public View onCreateView LayoutInflater inflater  ViewGroup container                           Bundle savedInstanceState     RecyclerView myRecyclerView    RecyclerView  layout findViewById R id my recycler view    myRecyclerView addItemDecoration new SimpleDividerItemDecoration getResources                 4- To add spacing between Items you just need to add padding property to your item view   lt RelativeLayout xmlns android  http   schemas android com apk res android  android layout width  match parent  android layout height  match parent  android padding  4dp   gt        item structure  lt  RelativeLayout gt

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Too Late but for GridLayoutManager I use this   public class GridSpacesItemDecoration   RecyclerView ItemDecoration       private int space       public GridSpacesItemDecoration int space            this space   space             public override void GetItemOffsets Android Graphics Rect outRect  View view  RecyclerView parent  RecyclerView State state                var position   parent GetChildLayoutPosition view                Only for GridLayoutManager Layouts         var manager   parent GetLayoutManager   as GridLayoutManager           if  parent GetChildLayoutPosition view   lt  manager SpanCount              outRect Top   space           if  position   2    0                outRect Right   space                     outRect Left   space          outRect Bottom   space            This work for any span count you have   Ollie

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Implement its own version of RecyclerView ItemDecoration  public class SpacingItemDecoration extends RecyclerView ItemDecoration       private int spacingPx      private boolean addStartSpacing      private boolean addEndSpacing       public SpacingItemDecoration int spacingPx            this spacingPx  false  false              public SpacingItemDecoration int spacingPx  boolean addStartSpacing  boolean addEndSpacing            this spacingPx   spacingPx          this addStartSpacing   addStartSpacing          this addEndSpacing   addEndSpacing              Override     public void getItemOffsets Rect outRect  View view  RecyclerView parent  RecyclerView State state            super getItemOffsets outRect  view  parent  state           if  spacingPx  lt   0                return                     if  addStartSpacing  amp  amp  parent getChildLayoutPosition view   lt  1    parent getChildLayoutPosition view   gt   1                if  getOrientation parent     LinearLayoutManager VERTICAL                    outRect top   spacingPx                else                   outRect left   spacingPx                                   if  addEndSpacing  amp  amp  parent getChildAdapterPosition view     getTotalItemCount parent  - 1                if  getOrientation parent     LinearLayoutManager VERTICAL                    outRect bottom   spacingPx                else                   outRect right   spacingPx                                     private int getTotalItemCount RecyclerView parent            return parent getAdapter   getItemCount               private int getOrientation RecyclerView parent            if  parent getLayoutManager   instanceof LinearLayoutManager                return   LinearLayoutManager  parent getLayoutManager    getOrientation              else               throw new IllegalStateException  SpacingItemDecoration can only be used with a LinearLayoutManager

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Here s a decoration that lets you set a spacing between items as well as a spacing on the edges  This works for both HORIZONTAL and VERTICAL layouts  class LinearSpacingDecoration       Px private val itemSpacing  Int       Px private val edgeSpacing  Int   0    RecyclerView ItemDecoration         override fun getItemOffsets outRect  Rect  view  View  parent  RecyclerView  state  RecyclerView State            val count   parent adapter  itemCount    0         val position   parent getChildAdapterPosition view          val leading   if  position    0  edgeSpacing else itemSpacing         val trailing   if  position    count - 1  edgeSpacing else 0         outRect run               if   parent layoutManager as  LinearLayoutManager   orientation    LinearLayout VERTICAL                    top   leading                 bottom   trailing               else                   left   leading                 right   trailing                                  Usage  recyclerView addItemDecoration LinearSpacingDecoration itemSpacing   10  edgeSpacing   20

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Add a margin to your view  it worked for me   android layout marginTop  10dp      If you just want to add equal spacing and want to do it in XML  just set padding to your RecyclerView and equal amount of layoutMargin to the item you inflate into your RecyclerView  and let the background color determine the spacing color

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Might I direct your attention to this particular file on Github by Alex Fu  https   gist github com alexfu 0f464fc3742f134ccd1e It s the DividerItemDecoration java example file  quot pulled straight from the support demos quot   https   plus google com 103498612790395592106 posts VVEB3m7NkSS  I was able to get divider lines nicely after importing this file in my project and add it as an item decoration to the recycler view  Here s how my onCreateView look like in my fragment containing the Recyclerview   Override public View onCreateView LayoutInflater inflater  ViewGroup container  Bundle savedInstanceState        View rootView   inflater inflate R layout fragment recycler view  container  false        mRecyclerView    RecyclerView  rootView findViewById R id my recycler view       mRecyclerView addItemDecoration new DividerItemDecoration getActivity    DividerItemDecoration VERTICAL         mRecyclerView setHasFixedSize true       mLayoutManager   new LinearLayoutManager getActivity         mRecyclerView setLayoutManager mLayoutManager       mRecyclerView setItemAnimator new DefaultItemAnimator          return rootView     I m sure additional styling can be done  but it s a starting point

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I forked the DividerItemDecoration from an older gist and simplified it to fit my use case  and I also modified it to draw the dividers the way they are drawn in ListView  including a divider after the last list item  This will also handle vertical ItemAnimator animations   1  Add this class to your project   public class DividerItemDecoration extends RecyclerView ItemDecoration       private static final int   ATTRS   new int   android R attr listDivider       private Drawable divider       public DividerItemDecoration Context context            try               final TypedArray a   context obtainStyledAttributes ATTRS               divider   a getDrawable 0               a recycle              catch  Resources NotFoundException e                   TODO Log or handle as necessary                        Override     public void getItemOffsets Rect outRect  View view  RecyclerView parent  RecyclerView State state            super getItemOffsets outRect  view  parent  state           if  divider    null  return          if  parent getChildAdapterPosition view   lt  1  return           if  getOrientation parent     LinearLayoutManager VERTICAL              outRect top   divider getIntrinsicHeight            else             throw new IllegalArgumentException  Only usable with vertical lists                Override     public void onDrawOver Canvas c  RecyclerView parent  RecyclerView State state            if  divider    null                super onDrawOver c  parent  state               return                     final int left   parent getPaddingLeft            final int right   parent getWidth   - parent getPaddingRight            final int childCount   parent getChildCount             for  int i   0  i  lt  childCount    i                final View child   parent getChildAt i               final RecyclerView LayoutParams params    RecyclerView LayoutParams  child getLayoutParams                final int size   divider getIntrinsicHeight                final int top    int   child getTop   - params topMargin - size   child getTranslationY                 final int bottom   top   size              divider setBounds left  top  right  bottom               divider draw c                if  i    childCount - 1                    final int newTop    int   child getBottom     params bottomMargin   child getTranslationY                     final int newBottom   newTop   size                  divider setBounds left  newTop  right  newBottom                   divider draw c                                      private int getOrientation RecyclerView parent            if    parent getLayoutManager   instanceof LinearLayoutManager               throw new IllegalStateException  Layout manager must be an instance of LinearLayoutManager            return   LinearLayoutManager  parent getLayoutManager    getOrientation              2  Add the decorator to your RecylerView   recyclerView addItemDecoration new DividerItemDecoration getActivity

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1 One of the Way is by using cardview and recycler view together  we can easily add effect like divider   ex https   developer android com training material lists-cards html  2 and other is by adding view as divider to list item layout of recycler view            lt View             android id    id view1              android layout width  match parent              android layout height  1dp              android background   color colorAccent    gt

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OCTOBER 2016 UPDATE  With support library v25 0 0 there finally is a default implementation of basic horizontal and vertical dividers available   https   developer android com reference android support v7 widget DividerItemDecoration html

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The simple one is to set background color for RecyclerView and different background color for items  Here is an example       lt android support v7 widget RecyclerView     android background   ECEFF1      android layout width  match parent      android layout height  wrap content      android scrollbars  vertical   gt    and the TextView item  It can be anything though  with bottom margin  x  dp or px    lt TextView     android layout width  match parent      android layout height  match parent      android layout marginBottom  1dp      android background   FFFFFF   gt    The output

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Taken from a google search  add this ItemDecoration to your RecyclerView   public class DividerItemDecoration extends RecyclerView ItemDecoration    private Drawable mDivider  private boolean mShowFirstDivider   false  private boolean mShowLastDivider   false    public DividerItemDecoration Context context  AttributeSet attrs        final TypedArray a   context              obtainStyledAttributes attrs  new int   android R attr listDivider        mDivider   a getDrawable 0       a recycle       public DividerItemDecoration Context context  AttributeSet attrs  boolean showFirstDivider          boolean showLastDivider        this context  attrs       mShowFirstDivider   showFirstDivider      mShowLastDivider   showLastDivider     public DividerItemDecoration Drawable divider        mDivider   divider     public DividerItemDecoration Drawable divider  boolean showFirstDivider          boolean showLastDivider        this divider       mShowFirstDivider   showFirstDivider      mShowLastDivider   showLastDivider      Override public void getItemOffsets Rect outRect  View view  RecyclerView parent          RecyclerView State state        super getItemOffsets outRect  view  parent  state       if  mDivider    null            return            if  parent getChildPosition view   lt  1            return             if  getOrientation parent     LinearLayoutManager VERTICAL            outRect top   mDivider getIntrinsicHeight          else           outRect left   mDivider getIntrinsicWidth              Override public void onDrawOver Canvas c  RecyclerView parent  RecyclerView State state        if  mDivider    null            super onDrawOver c  parent  state           return                Initialization needed to avoid compiler warning     int left   0  right   0  top   0  bottom   0  size      int orientation   getOrientation parent       int childCount   parent getChildCount         if  orientation    LinearLayoutManager VERTICAL            size   mDivider getIntrinsicHeight            left   parent getPaddingLeft            right   parent getWidth   - parent getPaddingRight          else     horizontal         size   mDivider getIntrinsicWidth            top   parent getPaddingTop            bottom   parent getHeight   - parent getPaddingBottom               for  int i   mShowFirstDivider   0   1  i  lt  childCount  i              View child   parent getChildAt i           RecyclerView LayoutParams params    RecyclerView LayoutParams  child getLayoutParams             if  orientation    LinearLayoutManager VERTICAL                top   child getTop   - params topMargin              bottom   top   size            else     horizontal             left   child getLeft   - params leftMargin              right   left   size                    mDivider setBounds left  top  right  bottom           mDivider draw c                 show last divider     if  mShowLastDivider  amp  amp  childCount  gt  0            View child   parent getChildAt childCount - 1           RecyclerView LayoutParams params    RecyclerView LayoutParams  child getLayoutParams            if  orientation    LinearLayoutManager VERTICAL                top   child getBottom     params bottomMargin              bottom   top   size            else      horizontal             left   child getRight     params rightMargin              right   left   size                    mDivider setBounds left  top  right  bottom           mDivider draw c            private int getOrientation RecyclerView parent        if  parent getLayoutManager   instanceof LinearLayoutManager            LinearLayoutManager layoutManager    LinearLayoutManager  parent getLayoutManager            return layoutManager getOrientation          else           throw new IllegalStateException                   DividerItemDecoration can only be used with a LinearLayoutManager

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This is how I would do it in Kotlin for a column display  grid     class ItemDecorationColumns private val space  Int    ItemDecoration          override fun getItemOffsets          outRect  Rect          view  View          parent  RecyclerView          state  RecyclerView State                 val position   parent getChildLayoutPosition view          val manager   parent layoutManager as GridLayoutManager          val spanCount   manager  spanCount    0          if  position  lt  spanCount                outRect top   space                    if  position   2    0                outRect right   space                   outRect left   space         outRect bottom   space           Usage  rvAlbums addItemDecoration ItemDecorationColumns resources getDimensionPixelSize R dimen space

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Instead of create a shape xml for change the divider height and color  You can create programmatically like    val divider   DividerItemDecoration context          DividerItemDecoration VERTICAL   divider setDrawable ShapeDrawable   apply       intrinsicHeight   resources getDimensionPixelOffset R dimen dp 15      paint color   Color RED    note  currently  support version 28 0 0   we can not use tranparent color here  if we use transparent  we still see a small divider line  So if we want to display transparent space  we can set color   background color or we can create a custom ItemDecoration instead of DividerItemDecoration       recycler devices addItemDecoration divider

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A really easy solution is to use RecyclerView-FlexibleDivider  Add dependency   compile  com yqritc recyclerview-flexibledivider 1 4 0    Add to your recyclerview   recyclerView addItemDecoration new HorizontalDividerItemDecoration Builder context  build       And you re done

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I have a very simple way of adding a divider in RecyclerView  Use a custom adapter to modify the recycler view layout and then along with the recycler view items add LinearLayout with a background color  which will be the divider color  and add a height of 1dp  or as per your requirement  and width to match parent   Here is a sample code    lt  xml version  1 0  encoding  utf-8   gt   lt LinearLayout xmlns android  http   schemas android com apk res android  android orientation  vertical  android layout width  match parent  android layout height  match parent  gt    lt LinearLayout     android layout width  match parent      android layout height  wrap content      android orientation  horizontal      android padding  18dp  gt        lt TextView         android id    id list row SNO          android layout width  match parent          android layout height  wrap content          android layout weight   8          android layout gravity  end          android text  44           android textAlignment  center          android textSize  24sp          android textColor   color colorBlack          android fontFamily  sans-serif-condensed    gt        lt TextView         android id    id list row Heading          android layout width  match parent          android layout height  wrap content          android layout weight   2          android layout gravity  start          android text  Student s application for leave and this what          android textAlignment  textStart          android textSize  24sp          android textColor   color colorBlack          android fontFamily  sans-serif-condensed    gt    lt  LinearLayout gt    lt LinearLayout     android layout width  match parent      android layout height  1dp      android background   color colorHighlight  gt   lt  LinearLayout gt

[android] How to add dividers and spaces between items in RecyclerView?

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