android - Navigation Drawer not working -

i combined navigation drawer tabs layout. in tab, layout working 3 tabs navigation drawer misbehaving. navigation drawer icon disappeared, opening sliding not getting closed sliding. , menus in navigation drawer not working.

                   <?xml version="1.0" encoding="utf-8"?>      <android.support.v4.widget.drawerlayoutxmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/drawer_layout" android:layout_width="match_parent" android:layout_height="match_parent" android:fitssystemwindows="true" tools:opendrawer="start">  <include     layout="@layout/app_bar_main"     android:layout_width="match_parent"     android:layout_height="match_parent" />  <android.support.design.widget.navigationview     android:id="@+id/nav_view"     android:layout_width="wrap_content"     android:layout_height="match_parent"     android:layout_gravity="start"     android:fitssystemwindows="true"     app:headerlayout="@layout/nav_header_main"     app:menu="@menu/activity_main_drawer" />  <linearlayout     android:id="@+id/main_layout"     android:orientation="vertical"     xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:app="http://schemas.android.com/apk/res-auto"     xmlns:tools="http://schemas.android.com/tools"     android:layout_width="match_parent"     android:layout_height="match_parent"     tools:context=".mainactivity">      <!-- our toolbar -->     <android.support.v7.widget.toolbar         android:id="@+id/toolbar"         android:layout_width="match_parent"         android:layout_height="wrap_content"         android:background="?attr/colorprimary"         android:minheight="?attr/actionbarsize"         android:theme="@style/themeoverlay.appcompat.dark.actionbar"         app:popuptheme="@style/themeoverlay.appcompat.light"/>      <!-- our tablayout display tabs  -->     <android.support.design.widget.tablayout         android:id="@+id/tablayout"         android:layout_width="match_parent"         android:layout_height="wrap_content"         android:background="?attr/colorprimary"         android:minheight="?attr/actionbarsize"         android:theme="@style/themeoverlay.appcompat.dark.actionbar"/>      <!-- view pager swipe views -->     <android.support.v4.view.viewpager         android:id="@+id/pager"         android:layout_width="match_parent"         android:layout_height="fill_parent"/>  </linearlayout>     public class mainactivity extends appcompatactivity implements tablayout.ontabselectedlistener {  private navigationview navigationview; private drawerlayout drawer; private view navheader; private imageview imgnavheaderbg, imgprofile; private textview txtname, txtwebsite; private toolbar toolbar; private floatingactionbutton fab; actionbar actionbar; //this our tablayout private tablayout tablayout;  //this our viewpager private viewpager viewpager;  // urls load navigation header background image // , profile image private static final string urlnavheaderbg = "http://api.androidhive.info/images/nav-menu-header-bg.jpg"; private static final string urlprofileimg = "https://lh3.googleusercontent.com/ecte_g34m9ygdkmopyvcag1vbarcmzwnvs6rs5t4jlzj6qgqsbqum0nutscplhybkljoys-txg";  // index identify current nav menu item public static int navitemindex = 0;  // tags used attach fragments private static final string tag_home = "home"; private static final string tag_photos = "photos"; private static final string tag_movies = "movies"; private static final string tag_notifications = "notifications"; private static final string tag_settings = "settings"; public static string current_tag = tag_home;  // toolbar titles respected selected nav menu item private string[] activitytitles;  // flag load home fragment when user presses key private boolean shouldloadhomefragonbackpress = true; private handler mhandler;   @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_main);      actionbar = getsupportactionbar();     actionbar.show();     toolbar = (toolbar) findviewbyid(r.id.toolbar);     // setsupportactionbar(toolbar);      mhandler = new handler();      drawer = (drawerlayout) findviewbyid(r.id.drawer_layout);     navigationview = (navigationview) findviewbyid(r.id.nav_view);      view hview = navigationview.getheaderview(0);    //  fab = (floatingactionbutton) findviewbyid(r.id.fab);      // navigation view header     navheader = navigationview.getheaderview(0);     txtname = (textview) navheader.findviewbyid(r.id.name);     txtwebsite = (textview) navheader.findviewbyid(r.id.website);     imgnavheaderbg = (imageview) navheader.findviewbyid(r.id.img_header_bg);     imgprofile = (imageview) navheader.findviewbyid(r.id.img_profile);      // load toolbar titles string resources     activitytitles = getresources().getstringarray(r.array.nav_item_activity_titles);    /*  fab.setonclicklistener(new view.onclicklistener() {         @override         public void onclick(view view) {             snackbar.make(view, "replace own action", snackbar.length_long)                     .setaction("action", null).show();         }     });*/      // load nav menu header data     loadnavheader();      // initializing navigation menu     setupnavigationview();      if (savedinstancestate == null) {         navitemindex = 0;         current_tag = tag_home;         loadhomefragment();     }       /*     toolbar toolbar = (toolbar) findviewbyid(r.id.toolbar);     setsupportactionbar(toolbar);*/       //initializing tablayout     tablayout = (tablayout) findviewbyid(r.id.tablayout);      //adding tabs using addtab() method     tablayout.addtab(tablayout.newtab().settext("home"));     tablayout.addtab(tablayout.newtab().settext("search bride"));     tablayout.addtab(tablayout.newtab().settext("search groom"));     tablayout.settabgravity(tablayout.gravity_fill);      //initializing viewpager     viewpager = (viewpager) findviewbyid(r.id.pager);      //creating our pager adapter     pager adapter = new pager(getsupportfragmentmanager(), tablayout.gettabcount());      //adding adapter pager     viewpager.setadapter(adapter);      tablayout.setontabselectedlistener(this);     viewpager.addonpagechangelistener(new viewpager.onpagechangelistener() {           @override         public void onpagescrolled(int position, float positionoffset, int positionoffsetpixels) {             tablayout.setscrollposition(position, positionoffset, true);         }          @override         public void onpageselected(int position) {          }          @override         public void onpagescrollstatechanged(int state) {          }          //adding ontabselectedlistener swipe views          //tablayout.setonclicklistener();       }); }   /***  * load navigation menu header information  * background image, profile image  * name, website, notifications action view (dot)  */ private void loadnavheader() {     // name, website     txtname.settext("shubham");     txtwebsite.settext("shubhamkanugo@gmail.com");      // loading header background image     glide.with(this).load(urlnavheaderbg)             .crossfade()             .diskcachestrategy(diskcachestrategy.all)             .into(imgnavheaderbg);      // loading profile image     glide.with(this).load(urlprofileimg)             .crossfade()             .thumbnail(0.5f)             .bitmaptransform(new circletransform(this))             .diskcachestrategy(diskcachestrategy.all)             .into(imgprofile);      // showing dot next notifications label     navigationview.getmenu().getitem(3).setactionview(r.layout.menu_dot); }  /***  * returns respected fragment user  * selected navigation menu  */ private void loadhomefragment() {     // selecting appropriate nav menu item     selectnavmenu();      // set toolbar title     settoolbartitle();      // if user select current navigation menu again, don't     // close navigation drawer     if (getsupportfragmentmanager().findfragmentbytag(current_tag) != null) {         drawer.closedrawers();          // show or hide fab button         //togglefab();         return;     }      // sometimes, when fragment has huge data, screen seems hanging     // when switching between navigation menus     // using runnable, fragment loaded cross fade effect     // effect can seen in gmail app     runnable mpendingrunnable = new runnable() {         @override         public void run() {             // update main content replacing fragments             homefragment fragment = gethomefragment();             fragmenttransaction fragmenttransaction = getsupportfragmentmanager().begintransaction();             fragmenttransaction.setcustomanimations(android.r.anim.fade_in,                     android.r.anim.fade_out);            // fragmenttransaction replace = fragmenttransaction.replace(r.id.frame, fragment, current_tag);             fragmenttransaction.commitallowingstateloss();         }     };      // if mpendingrunnable not null, add message queue     if (mpendingrunnable != null) {         mhandler.post(mpendingrunnable);     }      // show or hide fab button   //  togglefab();      //closing drawer on item click     drawer.closedrawers();      // refresh toolbar menu     invalidateoptionsmenu(); }  private homefragment gethomefragment() {     switch (navitemindex) {         case 0:             // home             homefragment homefragment = new homefragment();             return homefragment;         case 1:             // photos             photosfragment photosfragment = new photosfragment();             return photosfragment;         case 2:             // movies fragment             moviesfragment moviesfragment = new moviesfragment();             return moviesfragment;         case 3:             // notifications fragment             notificationfragment notificationsfragment = new notificationfragment();             return notificationsfragment;          case 4:             // settings fragment             settingsfragment settingsfragment = new settingsfragment();             return settingsfragment;         default:             return new homefragment();     } }  private void settoolbartitle() {     getsupportactionbar().settitle(activitytitles[navitemindex]); }  private void selectnavmenu() {     navigationview.getmenu().getitem(navitemindex).setchecked(true); }  private void setupnavigationview() {     //setting navigation view item selected listener handle item click of navigation menu     navigationview.setnavigationitemselectedlistener(new navigationview.onnavigationitemselectedlistener() {          // method trigger on item click of navigation menu         @override         public boolean onnavigationitemselected(menuitem menuitem) {              //check see item being clicked , perform appropriate action             switch (menuitem.getitemid()) {                 //replacing main content contentfragment our inbox view;                 case r.id.nav_home:                     navitemindex = 0;                     current_tag = tag_home;                     break;                 case r.id.nav_photos:                     navitemindex = 1;                     current_tag = tag_photos;                     break;                 case r.id.nav_movies:                     navitemindex = 2;                     current_tag = tag_movies;                     break;                 case r.id.nav_notifications:                     navitemindex = 3;                     current_tag = tag_notifications;                     break;                 case r.id.nav_settings:                     navitemindex = 4;                     current_tag = tag_settings;                     break;                 case r.id.nav_about_us:                     // launch new intent instead of loading fragment                     startactivity(new intent(mainactivity.this, aboutusactivity.class));                     drawer.closedrawers();                     return true;                 case r.id.nav_privacy_policy:                     // launch new intent instead of loading fragment                     startactivity(new intent(mainactivity.this, privacypolicyactivity.class));                     drawer.closedrawers();                     return true;                 default:                     navitemindex = 0;             }              //checking if item in checked state or not, if not make in checked state             if (menuitem.ischecked()) {                 menuitem.setchecked(false);             } else {                 menuitem.setchecked(true);             }             menuitem.setchecked(true);              loadhomefragment();              return true;         }     });       actionbardrawertoggle actionbardrawertoggle = new actionbardrawertoggle(this, drawer,toolbar, r.string.opendrawer, r.string.closedrawer) {          @override         public void ondrawerclosed(view drawerview) {             // code here triggered once drawer closes dont want happen leave blank             super.ondrawerclosed(drawerview);         }          @override         public void ondraweropened(view drawerview) {             // code here triggered once drawer open dont want happen leave blank             super.ondraweropened(drawerview);         }     };      //setting actionbartoggle drawer layout     drawer.setdrawerlistener(actionbardrawertoggle);      //calling sync state necessary or else hamburger icon wont show     actionbardrawertoggle.syncstate(); }   @override public void onbackpressed() {     if (drawer.isdraweropen(gravitycompat.start)) {         drawer.closedrawers();         return;     }      // code loads home fragment when key pressed     // when user in other fragment home     if (shouldloadhomefragonbackpress) {         // checking if user on other navigation menu         // rather home         if (navitemindex != 0) {             navitemindex = 0;             current_tag = tag_home;             loadhomefragment();             return;         }     }      super.onbackpressed(); }  @override public boolean oncreateoptionsmenu(menu menu) {     // inflate menu; adds items action bar if present.      // show menu when home fragment selected     if (navitemindex == 0) {         getmenuinflater().inflate(r.menu.main, menu);     }      // when fragment notifications, load menu created notifications     if (navitemindex == 3) {         getmenuinflater().inflate(r.menu.notifications, menu);     }     return true; }  @override public boolean onoptionsitemselected(menuitem item) {     // handle action bar item clicks here. action bar     // automatically handle clicks on home/up button, long     // specify parent activity in androidmanifest.xml.     int id = item.getitemid();      //noinspection simplifiableifstatement     if (id == r.id.action_logout) {         toast.maketext(getapplicationcontext(), "logout user!", toast.length_long).show();         return true;     }      // user in notifications fragment     // , selected 'mark read'     if (id == r.id.action_mark_all_read) {         toast.maketext(getapplicationcontext(), "all notifications marked read!", toast.length_long).show();     }        // user in notifications fragment     // , selected 'clear all'     if (id == r.id.action_clear_notifications) {         toast.maketext(getapplicationcontext(), "clear notifications!", toast.length_long).show();     }      return super.onoptionsitemselected(item); }  // show or hide fab      @override public void ontabselected(tablayout.tab tab) {      viewpager.setcurrentitem(tab.getposition());  }  @override public void ontabunselected(tablayout.tab tab) {   }  @override public void ontabreselected(tablayout.tab tab) {  } 

hi please follow order tabs navigation drawer

<?xml version="1.0" encoding="utf-8"?>     <android.support.v4.widget.drawerlayout      xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     xmlns:app="http://schemas.android.com/apk/res-auto"     android:id="@+id/drawer_layout"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:fitssystemwindows="true"     tools:opendrawer="start">      <android.support.design.widget.coordinatorlayout xmlns:android="http://schemas.android.com/apk/res/android"         xmlns:app="http://schemas.android.com/apk/res-auto"         xmlns:tools="http://schemas.android.com/tools"         android:id="@+id/main_content"         android:layout_width="match_parent"         android:layout_height="match_parent"         android:fitssystemwindows="true"         android:background="#ffffff">           <relativelayout             android:layout_width="match_parent"             android:layout_height="match_parent">               <android.support.design.widget.appbarlayout                 android:id="@+id/appbar"                 android:layout_width="match_parent"                 android:layout_height="wrap_content"                 android:paddingtop="@dimen/appbar_padding_top"                 android:theme="@style/maintheme.appbaroverlay">                  <android.support.v7.widget.toolbar                     android:id="@+id/toolbar"                     android:layout_width="match_parent"                     android:layout_height="?attr/actionbarsize"                     android:background="?attr/colorprimary"                     app:layout_scrollflags="scroll|enteralways"                     app:popuptheme="@style/maintheme.popupoverlay"/>            <android.support.design.widget.tablayout              android:id="@+id/tablayout"              android:layout_width="match_parent"              android:layout_height="wrap_content"              android:background="?attr/colorprimary"              android:minheight="?attr/actionbarsize"             android:theme="@style/themeoverlay.appcompat.dark.actionbar"/>       </android.support.design.widget.appbarlayout>           <!-- view pager swipe views -->            <android.support.v4.view.viewpager              android:id="@+id/pager"              android:layout_width="match_parent"              android:layout_height="fill_parent"/>          </relativelayout>           <android.support.design.widget.navigationview             android:id="@+id/nav_view"             android:layout_width="wrap_content"             android:layout_height="match_parent"             android:layout_gravity="start"             android:fitssystemwindows="true"             app:headerlayout="@layout/nav_header_main"             app:menu="@menu/activity_main_drawer" />       </android.support.v4.widget.drawerlayout>