android - CollapsingToolbarLayout doesn't work well with NestedScrollView -


i made activity image should collapse toolbar , text below visible. when toolbar being collapsed, there shows large gap between toolbar , nestedscrollview

<android.support.design.widget.coordinatorlayout xmlns:app="http://schemas.android.com/apk/res-auto"     xmlns:android="http://schemas.android.com/apk/res/android"     android:id="@+id/coordinatorlayout"     android:layout_width="match_parent"     android:background="@color/white"     android:layout_height="match_parent">      <android.support.design.widget.appbarlayout         android:id="@+id/appbarlayout"         android:layout_width="match_parent"         app:elevation="5dp"         app:layout_collapsemode="pin"         android:fitssystemwindows="true"         android:layout_height="wrap_content">          <android.support.design.widget.collapsingtoolbarlayout             android:layout_width="match_parent"             android:layout_height="wrap_content"             app:toolbarid="@+id/toolbar"             android:id="@+id/collapsing"             android:fitssystemwindows="true"             app:contentscrim="?attr/colorprimary"             app:layout_scrollflags="scroll|exituntilcollapsed">              <com.noframe.farmisagronom.util.resizibleimageview                 android:id="@+id/image_view"                 android:layout_width="match_parent"                 android:layout_height="wrap_content"                 app:layout_scrollflags="scroll|enteralwayscollapsed"                 android:minheight="100dp"                 android:maxheight="400dp"                 android:fitssystemwindows="true"                 app:layout_collapsemode="parallax"                 app:layout_collapseparallaxmultiplier="0.5"                 android:scaletype="centercrop"/>              <android.support.v7.widget.toolbar                 android:id="@+id/toolbar"                 android:layout_width="match_parent"                 android:layout_height="?attr/actionbarsize"                 android:popuptheme="@style/themeoverlay.appcompat.light"                 android:minheight="?attr/actionbarsize"                 app:layout_collapsemode="pin"                 />          </android.support.design.widget.collapsingtoolbarlayout>     </android.support.design.widget.appbarlayout>     <android.support.v4.widget.nestedscrollview         android:id="@+id/nesteview"         app:layout_anchorgravity="top"         android:layout_width="match_parent"         android:layout_height="match_parent"         app:layout_behavior="@string/appbar_scrolling_view_behavior">          .....     </android.support.v4.widget.nestedscrollview> </android.support.design.widget.coordinatorlayout> 

and activity looks good. enter image description here

but when scroll nestedscrollview goes out of control. enter image description here

this little space between toolbar , text getting on nerves.

note if there large text in nestedscrollview problem won't show up, if nestedscrollview + collapsed tool bar doesn't take phone screen, there gap between them.

adding:

android:layout_gravity="fill_vertical" 

to nestedscrollview worked me.


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