android - Tablayout tab with multiple fragment -

i working on app use tab layout 5 tabs. need navigate multiple fragment inside every tab, , open first fragment when user again reselected tab. please me.

 tablayout tablayout = (tablayout) findviewbyid(r.id.tablayout);         tablayout.addtab(tablayout.newtab().seticon(r.drawable.scene_tab_selector));         tablayout.addtab(tablayout.newtab().seticon(r.drawable.my_scene_tab_selector));         tablayout.addtab(tablayout.newtab().seticon(r.drawable.conversation_tab_selector));         tablayout.addtab(tablayout.newtab().seticon(r.drawable.notification_tab_selector));         tablayout.addtab(tablayout.newtab().seticon(r.drawable.more_tab_selector));         tablayout.settabgravity(tablayout.gravity_fill);          final viewpager viewpager = (viewpager) findviewbyid(r.id.pager);         final pageradaptor adapter = new pageradaptor                 (getsupportfragmentmanager(), tablayout.gettabcount());         viewpager.setadapter(adapter);         viewpager.addonpagechangelistener(new tablayout.tablayoutonpagechangelistener(tablayout));         tablayout.setontabselectedlistener(new tablayout.ontabselectedlistener() {             @override             public void ontabselected(tablayout.tab tab) {                 viewpager.setcurrentitem(tab.getposition());                 tab.geticon().setcolorfilter(color.white, porterduff.mode.src_in);                 if(tab.getposition()==4)                 { //                    pagetitlelabel.settext("my profile");                 }             }              @override             public void ontabunselected(tablayout.tab tab) {                 tab.geticon().setcolorfilter(color.parsecolor("#a8a8a8"), porterduff.mode.src_in);              }              @override             public void ontabreselected(tablayout.tab tab) {               }         }); 

my pageradaptor follows

public class pageradaptor extends fragmentstatepageradapter {     int mnumoftabs;       public pageradaptor(fragmentmanager fm, int numoftabs) {         super(fm);         this.mnumoftabs = numoftabs;      }      @override     public fragment getitem(int position) {          switch (position) {             case 0:                 tab1containerfragment tab1 = new tab1containerfragment();                 return tab1;             case 1:                 mycuddllfragment tab2 = new mycuddllfragment();                 return tab2;             case 2: //                cuddllconversationfragment tab3 = new cuddllconversationfragment();                 conversationfragment conversationfragment = new conversationfragment();                 return conversationfragment;              case 3: //                cuddllnotificationsfragment tab4 = new cuddllnotificationsfragment();                 tab4containerfragment notificationpagefragment = new tab4containerfragment();                 return notificationpagefragment;              case 4:                 myprofilefragment tab5 = new myprofilefragment();                 return tab5;              default:                 return null;         }     }      @override     public int getcount() {         return mnumoftabs;     }    } 

 public void ontabselected(tablayout.tab tab) {              tab.geticon().setcolorfilter(color.white, porterduff.mode.src_in);             if(tab.getposition()==0)             {                viewpager.setcurrentitem(0);             }else if(tab.getposition()==1)             {               viewpager.setcurrentitem(1);             }else if(tab.getposition()==2)             {               viewpager.setcurrentitem(2);             }else if(tab.getposition()==3)             {               viewpager.setcurrentitem(3);             }           }