android - horizontal recyclerView with wrap_content in vertical recyclerView -

in app have situation in have create horizontal recyclerview in vertical recyclerview. rows show casual details , in show horizontal recyclerview.

i have set height of horizontal recyclerview wrap_content not visible. when have added hardcoded height it, recyclerview visible. have searched lot regarding problem didn't got working or convincing solution.

here adapter class

public class homervadapter extends recyclerview.adapter<homervadapter.homeviewholder> { private arraylist<linkedhashmap<string, object>> data; private context ctx; private int selectedindex;  public homervadapter(context ctx, arraylist<linkedhashmap<string, object>> val) {     data = val;     this.ctx = ctx;     selectedindex = -1; }  @override public homeviewholder oncreateviewholder(viewgroup parent, int viewtype) {     layoutinflater inflater = ((activity) ctx).getlayoutinflater();      view view = inflater.inflate(r.layout.custom_home_recycler, null);      return new homeviewholder(view); }  @override public int getitemcount() {     return data.size(); }  @override public void onbindviewholder(final homeviewholder holder, final int position) {     if (getitemcount() == position+1) {         holder.categoryll.setvisibility(view.gone);         holder.productll.setvisibility(view.visible);          linearlayoutmanager manager = new linearlayoutmanager(ctx);         manager.setorientation(linearlayoutmanager.horizontal);          arraylist<subcategorydetails> list = new arraylist<>();         list.add(new subcategorydetails());         list.add(new subcategorydetails());         list.add(new subcategorydetails());         list.add(new subcategorydetails());         list.add(new subcategorydetails());         list.add(new subcategorydetails());         list.add(new subcategorydetails());         list.add(new subcategorydetails());         list.add(new subcategorydetails());         list.add(new subcategorydetails());         list.add(new subcategorydetails());         list.add(new subcategorydetails());          holder.subcatrv.setadapter(new promoproductadapter(list, holder.subcatrv));         holder.subcatrv.setlayoutmanager(manager);      } else {         holder.categoryll.setvisibility(view.visible);         holder.productll.setvisibility(view.gone);          if (selectedindex == position) {             holder.subcatgrid.setvisibility(view.visible);             showgrid(holder);         } else {             holder.subcatgrid.setvisibility(view.gone);         }          holder.cattr.setonclicklistener(new view.onclicklistener() {             @override             public void onclick(view v) {                 if (selectedindex == position) {                     holder.subcatgrid.setvisibility(view.gone);                     selectedindex = -1;                 } else {                     selectedindex = position;                     showgrid(holder);                 }             }         });     } }  private void showgrid(homeviewholder holder) {     arraylist<subcategorydetails> list = new arraylist<>();     list.add(new subcategorydetails());     list.add(new subcategorydetails());     list.add(new subcategorydetails());     list.add(new subcategorydetails());     list.add(new subcategorydetails());     list.add(new subcategorydetails());     list.add(new subcategorydetails());      subcategorygridadapter adapter = new subcategorygridadapter(list);      holder.subcatgrid.setadapter(adapter);     holder.subcatgrid.setvisibility(view.visible); }  class homeviewholder extends recyclerview.viewholder {     recyclerview subcatrv;     textview cattitletv, productnametv;     imageview productiv;     nonscrollablegridview subcatgrid;     linearlayout categoryll, productll;     tablerow cattr;      public homeviewholder(view view) {         super(view);          subcatrv = (recyclerview) view.findviewbyid(r.id.subcatrv);         productnametv = (textview) view.findviewbyid(r.id.productnametv);          cattitletv = (textview) view.findviewbyid(r.id.cattitletv);         productiv = (imageview) view.findviewbyid(r.id.productiv);         subcatgrid = (nonscrollablegridview) view.findviewbyid(r.id.subcatgrid);         categoryll = (linearlayout) view.findviewbyid(r.id.categoryll);         productll = (linearlayout) view.findviewbyid(r.id.productll);         cattr = (tablerow) view.findviewbyid(r.id.cattr);     } }  class subcategorygridadapter extends baseadapter {     arraylist<subcategorydetails> subcatdata;      public subcategorygridadapter(arraylist<subcategorydetails> subcatdata){         this.subcatdata = subcatdata;     }      @override     public int getcount() {         return subcatdata.size();     }      @override     public object getitem(int position) {         return null;     }      @override     public view getview(int position, view convertview, viewgroup parent) {         if (convertview == null) {             convertview = ((activity) ctx).getlayoutinflater().inflate(r.layout.custom_sub_cat_grid, null, true);         }          return convertview;     }      @override     public long getitemid(int position) {         return 0;     } }  class promoproductadapter extends recyclerview.adapter<promoproductadapter.promoholder> {     arraylist<subcategorydetails> data;     recyclerview horizontalrv;      public promoproductadapter(arraylist<subcategorydetails> data, recyclerview horizontalrv){         this.data = data;         this.horizontalrv = horizontalrv;     }      @override     public promoholder oncreateviewholder(viewgroup parent, int viewtype) {         layoutinflater inflater = ((activity) ctx).getlayoutinflater();          view view = inflater.inflate(r.layout.custom_promoted_product, null);          if (horizontalrv != null) {             int height = view.getmeasuredheight();             horizontalrv.getlayoutparams().height = height;         }          return new promoholder(view);     }      @override     public int getitemcount() {         return data.size();     }      @override     public void onbindviewholder(promoholder holder, int position) {      }      class promoholder extends recyclerview.viewholder {         public promoholder(view view) {             super(view);         }     } } 

}

please me problem solved.

i solved on own. have used custom linearlayoutmanager have found link.

public class mylinearlayoutmanager extends linearlayoutmanager {  public mylinearlayoutmanager(context context) {     super(context); }  private int[] mmeasureddimension = new int[2];  @override public void onmeasure(recyclerview.recycler recycler, recyclerview.state state,                       int widthspec, int heightspec) {     final int widthmode = view.measurespec.getmode(widthspec);     final int heightmode = view.measurespec.getmode(heightspec);     final int widthsize = view.measurespec.getsize(widthspec);     final int heightsize = view.measurespec.getsize(heightspec);      measurescrapchild(recycler, 0,             view.measurespec.makemeasurespec(0, view.measurespec.unspecified),             view.measurespec.makemeasurespec(0, view.measurespec.unspecified),             mmeasureddimension);      int width = mmeasureddimension[0];     int height = mmeasureddimension[1];      switch (widthmode) {         case view.measurespec.exactly:         case view.measurespec.at_most:             width = widthsize;             break;         case view.measurespec.unspecified:     }      switch (heightmode) {         case view.measurespec.exactly:         case view.measurespec.at_most:             height = heightsize;             break;         case view.measurespec.unspecified:     }      setmeasureddimension(width, height); }  private void measurescrapchild(recyclerview.recycler recycler, int position, int widthspec,                                int heightspec, int[] measureddimension) {     view view = recycler.getviewforposition(position);     if (view != null) {         recyclerview.layoutparams p = (recyclerview.layoutparams) view.getlayoutparams();         int childwidthspec = viewgroup.getchildmeasurespec(widthspec,                 getpaddingleft() + getpaddingright(), p.width);         int childheightspec = viewgroup.getchildmeasurespec(heightspec,                 getpaddingtop() + getpaddingbottom(), p.height);         view.measure(childwidthspec, childheightspec);         measureddimension[0] = view.getmeasuredwidth();         measureddimension[1] = view.getmeasuredheight();         recycler.recycleview(view);     } }} 

just have add linearlayoutmanager recyclerview that's it.

thanks cheers!!!