android - Recycler View Scrolling do not collapse tablayout, toolbar and ImageView -

my recycler view has 4 items , when scroll toolbar, image , tablayout should collapse. dont. when touch tablayout or imageview , scroll collapse. recyclerview collapse above mentioned view , dont. when fling dont. when scroll recyclerview collapse views. have checked many blogs , tried different scroll_flags , combination. tried setnestedscroll(true) recyclerview.

<?xml version="1.0" encoding="utf-8"?>  <android.support.v4.widget.drawerlayout  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/drawer_layout" android:layout_width="match_parent" android:layout_height="match_parent" android:fitssystemwindows="true" tools:opendrawer="start">  <android.support.design.widget.coordinatorlayout     android:layout_width="match_parent"     android:layout_height="match_parent"     android:fitssystemwindows="true">      <android.support.design.widget.appbarlayout         android:layout_width="match_parent"         android:layout_height="wrap_content"         android:fitssystemwindows="true"         android:theme="@style/themeoverlay.appcompat.dark.actionbar">          <android.support.design.widget.collapsingtoolbarlayout             android:id="@+id/collapse_toolbar"             android:layout_width="match_parent"             android:layout_height="wrap_content"             android:fitssystemwindows="true"             app:contentscrim="?attr/colorprimary"             app:expandedtitlemarginend="64dp"             app:expandedtitlemarginstart="48dp"             app:layout_scrollflags="scroll|exituntilcollapsed"             app:titleenabled="false">              <imageview                 android:layout_width="match_parent"                 android:layout_height="wrap_content"                 android:minheight="100dp"                 android:scaletype="centercrop"                 android:src="@drawable/banner_android"                 app:layout_collapsemode="parallax"              app:layout_scrollflags="scroll|enteralways|enteralwayscollapsed" />               <android.support.v7.widget.toolbar                 android:id="@+id/toolbar"                 android:layout_width="match_parent"                 android:layout_height="?attr/actionbarsize"                 android:layout_gravity="top"                 android:background="?attr/colorprimary"                 android:elevation="4dp"                 android:theme="@style/themeoverlay.appcompat.actionbar"                 android:titletextcolor="@android:color/white"                 app:layout_collapsemode="pin"                 app:layout_scrollflags="scroll|enteralways"                 app:popuptheme="@style/themeoverlay.appcompat.light" />          </android.support.design.widget.collapsingtoolbarlayout>          <android.support.design.widget.tablayout             android:id="@+id/tabs"             style="@style/mycustomtablayout"             android:layout_width="wrap_content"             android:layout_height="?attr/actionbarsize"             android:layout_gravity="bottom"             android:elevation="6dp"             app:tabgravity="center"             app:layout_scrollflags="scroll|enteralways"             app:tabindicatorcolor="@android:color/transparent"             app:tabmode="scrollable"             app:tabpaddingend="10dp"             app:tabpaddingstart="10dp" />          <!--app:tabtextappearance="@style/minecustomtabtext"-->     </android.support.design.widget.appbarlayout>      <android.support.v7.widget.recyclerview         android:id="@+id/recyclerview3"         android:layout_width="match_parent"         android:layout_height="match_parent"         app:layout_behavior="@string/appbar_scrolling_view_behavior"></android.support.v7.widget.recyclerview> </android.support.design.widget.coordinatorlayout>  <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/nev_header_main"     app:menu="@menu/activity_main_drawer" /> 

you can shown below

 <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:layout_width="match_parent"     android:layout_height="match_parent"     android:fitssystemwindows="true"">       <android.support.design.widget.appbarlayout         android:id="@+id/appbar"         android:layout_width="match_parent"         android:layout_height="wrap_content"         android:theme="@style/apptheme.noactionbar.appbaroverlay">          <android.support.design.widget.collapsingtoolbarlayout             android:id="@+id/collapsing_toolbar"             android:layout_width="match_parent"             android:layout_height="200dp"             android:fitssystemwindows="true"             app:contentscrim="?attr/colorprimary"              app:expandedtitlemarginstart="48dp"             app:expandedtitletextappearance="@style/textappearance.appcompat.headline"             app:layout_scrollflags="scroll|exituntilcollapsed">          <imageview             android:layout_width="match_parent"             android:layout_height="match_parent"             android:fitssystemwindows="true"             app:layout_collapsemode="parallax"            />               <android.support.v7.widget.toolbar                 android:id="@+id/toolbar"                 android:layout_width="match_parent"                 android:layout_height="?attr/actionbarsize"                 app:contentinsetstart="48dp"                 app:layout_collapsemode="pin"                 app:popuptheme="@style/themeoverlay.appcompat.light"/>         </android.support.design.widget.collapsingtoolbarlayout>           <android.support.design.widget.tablayout             android:id="@+id/tabs"             android:layout_width="match_parent"             android:layout_height="?attr/actionbarsize"             android:layout_gravity="bottom"             android:background="?attr/colorprimary"             app:tabindicatorcolor="@android:color/white"/>     </android.support.design.widget.appbarlayout>     <relativelayout     android:id="@+id/content_main2"        android:layout_width="match_parent"     android:layout_height="match_parent"     app:layout_behavior="@string/appbar_scrolling_view_behavior">     <android.support.v4.view.viewpager         android:id="@+id/viewpager"         android:layout_width="match_parent"         android:layout_height="match_parent"         /> </relativelayout>       <android.support.design.widget.floatingactionbutton         android:id="@+id/fab"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_gravity="bottom|end"         android:layout_margin="@dimen/fab_margin"         app:srccompat="@android:drawable/ic_dialog_email"/>  </android.support.design.widget.coordinatorlayout>