android - Tablayout with ViewPager inside RecyclerView -

i have activity dynamic tabs.each tab contain same recyclerview.i able achieve .what want each item of recyclerview in each tab have own tab layout viewpager. creating single fragment , passing 3 tabs different data inside each tab. problem first item of recyclerview shows data remaining item either doesn't show data @ or in shows wrong data sometimes.can please me this.have been stuck 2 days.i know don't have proper credit still can 1 please help.

my recycler view adpater code..

   import android.app.activity;     import android.content.context;     import android.os.bundle;     import android.support.design.widget.bottomsheetdialog;     import android.support.design.widget.tablayout;     import android.support.transition.transitionmanager;     import android.support.v4.app.fragment;     import android.support.v4.app.fragmentmanager;     import android.support.v4.app.fragmentpageradapter;     import android.support.v4.app.fragmentstatepageradapter;     import android.support.v4.view.pageradapter;     import android.support.v4.view.viewpager;     import android.support.v7.app.appcompatactivity;     import android.support.v7.widget.cardview;     import android.support.v7.widget.defaultitemanimator;     import android.support.v7.widget.linearlayoutmanager;     import android.support.v7.widget.recyclerview;     import android.util.log;     import android.view.layoutinflater;     import android.view.menuitem;     import android.view.view;     import android.view.viewgroup;     import android.view.animation.animation;     import android.view.animation.animationset;     import android.view.animation.animationutils;     import android.view.animation.decelerateinterpolator;     import android.view.animation.rotateanimation;     import android.widget.button;     import android.widget.imagebutton;     import android.widget.imageview;     import android.widget.linearlayout;     import android.widget.popupmenu;     import android.widget.relativelayout;     import android.widget.textview;      import com.bumptech.glide.glide;     import com.bumptech.glide.load.engine.diskcachestrategy;     import com.fitcarte.fitcarte.itemdescriptiontabfragment;     import com.fitcarte.fitcarte.fitcarte.r;     import com.fitcarte.fitcarte.sqlite.mealconfiguratordbhandler;     import com.fitcarte.fitcarte.timepicker.timepickerpopwin;      import java.util.arraylist;     import java.util.list;       /**      * custom adapter mealplanner recycler view      */     public class mealplanneradapter extends recyclerview.adapter<mealplanneradapter.myviewholder> implements changemealclicklistener {          public interface mealplannerinerface {             void mealaddress(int position);         }          private list<mealplanner> mmealplanner = new arraylist<>();         private static context mcontext;         private bottomsheetdialog mbottomsheet;         private mealconfiguratordbhandler mealconfiguratordbhandler;         private int mposition;         private fragmentmanager parentfragment;          private mealplannerinerface minterface;          public static class myviewholder extends recyclerview.viewholder {             private final cardview mcardview;             private final linearlayout mlinearlayout;             private final imageview mmealimage, mmealcategory;             private final textview mmealname, mmealtype, mmealorder, mmealcalorie, mmealprice, mdeliverytime, mdeliveryaddresslabel;             private final imagebutton moptionmenu, mmealdescriptionarrow;             private final linearlayout mmealdescriptionlayout;             private final button maddmeal;             private final tablayout mtablayout;             private final viewpager mviewpager;              public myviewholder(view view) {                 super(view);                 mcardview = (cardview) view.findviewbyid(r.id.mealplannercardview);                 mlinearlayout = (linearlayout) view.findviewbyid(r.id.mealplanneraddmeallayout);                 mtablayout = (tablayout) view.findviewbyid(r.id.mealplannertab);                 mviewpager = (viewpager) view.findviewbyid(r.id.mealplannerpager);                  mmealimage = (imageview) view.findviewbyid(r.id.mealplannermealimage);                 mmealcategory = (imageview) view.findviewbyid(r.id.mealplannermealcategory);                 mmealname = (textview) view.findviewbyid(r.id.mealplannermealname);                 mmealtype = (textview) view.findviewbyid(r.id.mealplannermealtype);                 mmealorder = (textview) view.findviewbyid(r.id.mealplannermealorder);                 mmealcalorie = (textview) view.findviewbyid(r.id.mealplannermealcalorie);                 mmealprice = (textview) view.findviewbyid(r.id.mealplannermealprice);                 mdeliverytime = (textview) view.findviewbyid(r.id.mealplannermealtime);                 mdeliveryaddresslabel = (textview) view.findviewbyid(r.id.mealplannermealaddresslabel);                 moptionmenu = (imagebutton) view.findviewbyid(r.id.mealoptionmenu);                 mmealdescriptionarrow = (imagebutton) view.findviewbyid(r.id.mealplannerdescriptionarrow);                 mmealdescriptionlayout = (linearlayout) view.findviewbyid(r.id.mealplannerdescriptionlayout);                 maddmeal = (button) view.findviewbyid(r.id.mealplanneraddmeal);             }         }          public mealplanneradapter(list<mealplanner> mmealplanner, context mcontext, mealplannerinerface minterface,fragmentmanager parentfragment) {             this.mmealplanner = mmealplanner;             this.mcontext = mcontext;             this.minterface = minterface;             this.parentfragment=parentfragment;             mealconfiguratordbhandler = new mealconfiguratordbhandler(mcontext);         }          @override         public myviewholder oncreateviewholder(viewgroup parent, int viewtype) {             view itemview = layoutinflater.from(mcontext).inflate(r.layout.layout_meal_planner_card, parent, false);             return new myviewholder(itemview);         }          @override         public void onbindviewholder(final myviewholder holder, final int position) {              holder.mtablayout.setupwithviewpager(holder.mviewpager);             holder.mtablayout.setfillviewport(true);             setupviewpager( holder.mviewpager, holder.mtablayout, position);              string mealtype = mmealplanner.get(position).getmealtype() + " meal - ";             string calorie = mmealplanner.get(position).getmealcalorie() + " kcal";             string price = mcontext.getresources().getstring(r.string.rs) + " " + mmealplanner.get(position).getmealprice();             glide.with(mcontext)                     .load(mmealplanner.get(position).getmealimage())                     .centercrop()                     .placeholder(r.drawable.placeholder)                     .diskcachestrategy(diskcachestrategy.source)                     .into(holder.mmealimage);             holder.mmealname.settext(mmealplanner.get(position).getmealname());             holder.mmealtype.settext(mealtype);             holder.mmealorder.settext(mmealplanner.get(position).getmealtime());             if (mmealplanner.get(position).getmealcategory().equalsignorecase("veg")) {                 holder.mmealcategory.setimageresource(r.drawable.ic_veg);             } else {                 holder.mmealcategory.setimageresource(r.drawable.ic_nonveg);             }             holder.mmealcalorie.settext(calorie);             holder.mmealprice.settext(price);             holder.mdeliverytime.settext(mmealplanner.get(position).getdeliverytime());             holder.mdeliveryaddresslabel.settext(mmealplanner.get(position).getdeliveryaddresslabel());          }          @override         public int getitemcount() {             return mmealplanner.size();         }           private void setupviewpager(viewpager mviewpager,tablayout mtablayout,int mposition) {              viewpageradapter adapter = new viewpageradapter(parentfragment);              //add ingredients fragment             fragment fragment_ingredients = new mealplannertabfragment();             bundle bundle_ingredients = new bundle();             bundle_ingredients.putstring("type", "tab_ingredients");             bundle_ingredients.putstring("ingredients",  mmealplanner.get(mposition).getmealname());             fragment_ingredients.setarguments(bundle_ingredients);              //add nutritional facts fragment             fragment fragment_nutritional_facts = new mealplannertabfragment();             bundle bundle_calories = new bundle();             bundle_calories.putstring("type", "tab_nutritional_facts");             bundle_calories.putstring("calory", mmealplanner.get(mposition).getmealcalorie());             bundle_calories.putstring("protein", mmealplanner.get(mposition).getmealprotein());             bundle_calories.putstring("carbs", mmealplanner.get(mposition).getmealcarbs());             bundle_calories.putstring("fats", mmealplanner.get(mposition).getmealfat());             fragment_nutritional_facts.setarguments(bundle_calories);               //add ingredients fragment             fragment fragment_health_benefits = new mealplannertabfragment();             bundle bundle_time = new bundle();             bundle_time.putstring("type", "health_benefits");             fragment_health_benefits.setarguments(bundle_time);               adapter.addfragment(fragment_ingredients, "ingredients");             adapter.addfragment(fragment_nutritional_facts, "nutritional facts");             adapter.addfragment(fragment_health_benefits, "health benefits");             mviewpager.setadapter(adapter);              (int = 0; < mtablayout.gettabcount(); i++) {                 mtablayout.gettabat(i).setcustomview(adapter.gettabview(i));             }         }           /**          * viewpageradapter class tab layout          */         private static class viewpageradapter extends fragmentstatepageradapter{             private final list<fragment> mfragmentlist = new arraylist<>();             private final list<string> mfragmenttitlelist = new arraylist<>();              public viewpageradapter(fragmentmanager manager) {                 super(manager);             }              @override             public fragment getitem(int position) {                 return mfragmentlist.get(position);             }              @override             public int getcount() {                 return mfragmentlist.size();             }             public void addfragment(fragment fragment, string title) {                 mfragmentlist.add(fragment);                 mfragmenttitlelist.add(title);             }              @override             public charsequence getpagetitle(int position) {                 return mfragmenttitlelist.get(position);             }               public view gettabview(int i) {                 view view = layoutinflater.from(mcontext).inflate(r.layout.layout_custom_tab, null);                 textview txt = (textview) view.findviewbyid(r.id.tab);                 if (i == 0) {                     txt.settext("ingredients");                     txt.setcompounddrawableswithintrinsicbounds(0, r.drawable.selector_ingrediants, 0, 0);                 } else if (i == 1) {                     txt.settext("nutritional facts");                     txt.setcompounddrawableswithintrinsicbounds(0, r.drawable.selector_nutritional_facts, 0, 0);                 } else {                     txt.settext("health benefits");                     txt.setcompounddrawableswithintrinsicbounds(0, r.drawable.selector_health_benefits, 0, 0);                 }                  return view;             }         }        } 

fragment code:

import android.os.bundle; import android.support.annotation.nullable; import android.support.v4.app.fragment; import android.util.log; import android.view.layoutinflater; import android.view.view; import android.view.viewgroup; import android.widget.progressbar; import android.widget.relativelayout; import android.widget.textview;    /**  * simple {@link fragment} subclass.  */ public class mealplannertabfragment extends fragment {      private string type,calory,protein,carbs,fats,ingredients;     private relativelayout ingredientslayout, nutritionalfactslayout, healthbenifitslayout;     private textview ingredientstextview, caloriestextview, proteintextview, carbstextview, fatstextview;     private progressbar progress;     private int c=0;     public mealplannertabfragment() {         // required empty public constructor     }      @override     public void oncreate(@nullable bundle savedinstancestate) {         super.oncreate(savedinstancestate);         if (getarguments() != null && c==0 ) {             c=1;             type = getarguments().getstring("type");             if (type.equalsignorecase("tab_nutritional_facts")) {                 calory = getarguments().getstring("calory") + " kcal";                 protein = getarguments().getstring("protein") + " kcal";                 carbs = getarguments().getstring("carbs") + " kcal";                 fats = getarguments().getstring("fats") + " kcal";             }else if(type.equalsignorecase("tab_ingredients")){                 ingredients=getarguments().getstring("ingredients");             }         }     }      @override     public view oncreateview(layoutinflater inflater, viewgroup container,                              bundle savedinstancestate) {         view rootview = inflater.inflate(r.layout.layout_meal_planner_description_tab, container, false);          ingredientslayout = (relativelayout) rootview.findviewbyid(r.id.ingredients_layout);         nutritionalfactslayout = (relativelayout) rootview.findviewbyid(r.id.nutritional_facts_layout);         healthbenifitslayout = (relativelayout) rootview.findviewbyid(r.id.health_benefits_layout);         ingredientstextview = (textview) rootview.findviewbyid(r.id.id_txt);         caloriestextview = (textview) rootview.findviewbyid(r.id.txt_calories);         proteintextview = (textview) rootview.findviewbyid(r.id.txt_protein);         carbstextview = (textview) rootview.findviewbyid(r.id.txt_carbs);         fatstextview = (textview) rootview.findviewbyid(r.id.txt_fats);         progress = (progressbar) rootview.findviewbyid(r.id.progress);          if (type.equalsignorecase("tab_nutritional_facts")) {             ingredientslayout.setvisibility(view.gone);             nutritionalfactslayout.setvisibility(view.visible);             healthbenifitslayout.setvisibility(view.gone);              caloriestextview.settext(calory);             proteintextview.settext(protein);             carbstextview.settext(carbs);             fatstextview.settext(fats);         }else if(type.equalsignorecase("tab_ingredients")){             ingredientslayout.setvisibility(view.visible);             nutritionalfactslayout.setvisibility(view.gone);             healthbenifitslayout.setvisibility(view.gone);              ingredientstextview.settext(ingredients);         } else {             ingredientslayout.setvisibility(view.gone);             nutritionalfactslayout.setvisibility(view.gone);             healthbenifitslayout.setvisibility(view.visible);         }          return rootview;     }  }