android - Collapsible layout below Toolbar -


i have viewpager based ui tabs , 1 fragment load have coordinatorlayout appbarlayout , toolbar. have animations when scrolling content , keep layout fixed @ top. seems when coordinator collapsed:

screenshot

the problem when layout collapsed can't continue scroll content. trying fix week , don't know if it's possible fix or should leave idea , different. right behavior should keep header (weather icon, temperature, content inside coordinatorlayout) fixed once collapsed , scroll content below layout.

i post here activity layout , basic structure of fragment layout.

main activity layout

<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" tools:context="com.mlkapps.meteo.mainactivity">  <android.support.design.widget.appbarlayout     android:id="@+id/appbar"     android:layout_width="match_parent"     android:layout_height="wrap_content"     android:theme="@style/apptheme.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/apptheme.popupoverlay">      </android.support.v7.widget.toolbar>      <android.support.design.widget.tablayout         android:id="@+id/tabs"         android:layout_width="match_parent"         android:layout_height="wrap_content" />  </android.support.design.widget.appbarlayout>  <android.support.v4.view.viewpager     android:id="@+id/container"     android:layout_width="match_parent"     android:layout_height="match_parent"     app:layout_behavior="@string/appbar_scrolling_view_behavior" />

fragment layout

<android.support.design.widget.coordinatorlayout     android:id="@+id/coordinator"     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="220dp"         android:fitssystemwindows="true">          <android.support.design.widget.collapsingtoolbarlayout             android:id="@+id/collapsing"             android:layout_width="match_parent"             android:layout_height="match_parent"             app:layout_scrollflags="scroll|exituntilcollapsed"             android:fitssystemwindows="true">              <android.support.constraint.constraintlayout                 android:layout_width="match_parent"                 android:layout_height="match_parent">                  <!--toolbar content: temperature, weather icon...-->              </android.support.constraint.constraintlayout>              <android.support.v7.widget.toolbar                 android:id="@+id/main.toolbar"                 android:layout_width="match_parent"                 android:layout_height="90dp"                 app:popuptheme="@style/themeoverlay.appcompat.light"                 app:layout_collapsemode="pin" />          </android.support.design.widget.collapsingtoolbarlayout>      </android.support.design.widget.appbarlayout>      <android.support.v4.widget.nestedscrollview         android:layout_width="match_parent"         android:layout_height="match_parent"         app:layout_behavior="@string/appbar_scrolling_view_behavior">          <linearlayout             android:layout_width="match_parent"             android:layout_height="wrap_content"             android:orientation="vertical"             app:layout_behavior="@string/appbar_scrolling_view_behavior">              <linearlayout                 android:id="@+id/recycler"                 android:layout_width="match_parent"                 android:layout_height="wrap_content"                 android:orientation="vertical"                 android:paddingtop="@dimen/nav_header_height">                  <android.support.v7.widget.recyclerview                     android:id="@+id/hourlyrecyclerview"                     android:layout_width="match_parent"                     android:layout_height="wrap_content"                     android:layout_margintop="@dimen/activity_vertical_margin"                     android:paddingbottom="42dp"/>              </linearlayout>              <android.support.v7.widget.cardview                 android:layout_width="match_parent"                 android:layout_height="wrap_content">                  <android.support.constraint.constraintlayout                     android:layout_width="match_parent"                     android:layout_height="wrap_content">                      <!--some textview here-->                  </android.support.constraint.constraintlayout>              </android.support.v7.widget.cardview>          </linearlayout>      </android.support.v4.widget.nestedscrollview>  </android.support.design.widget.coordinatorlayout>


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