android - CoordinatorLayout / CollapsingToolbarLayout spacing issues -


i'm having issues implementing collapsingtoolbarlayout in app in conjunction recyclerview. have setup , working (compared few different sources - including cheesesquare setup) - i'm having issues spacing near bottom of layout (1st photo & 3rd photo) hoping might able with.

images found here: http://imgur.com/a/w3lb8

it seems few others have had problem, , answers did not solve mine - atleast:

coordinatorlayout leaves empty space @ bottom after scrolling

whitespace below coordinatorlayout in drawerlayout

i tried adding android:layout_gravity="fill_vertical" nestedscrollview / recyclerview suggested, , while seems (mostly) fix it, hides 1 & 1/3 of lowest views (looking @ views through hierarchy viewer - photo 4). i'm sure there's solution this, haven't been able figure out yet. assistance appreciated.

activity layout file:

<android.support.design.widget.coordinatorlayout     android:id="@+id/coordinator_layout"     xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:app="http://schemas.android.com/apk/res-auto"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:fitssystemwindows="true">      <android.support.design.widget.appbarlayout         android:id="@+id/app_bar_layout"         android:layout_width="match_parent"         android:layout_height="240dp"         android:fitssystemwindows="true"         android:theme="@style/themeoverlay.appcompat.dark.actionbar"         >          <android.support.design.widget.collapsingtoolbarlayout             android:id="@+id/collapsing_toolbar"             android:layout_width="match_parent"             android:layout_height="match_parent"             android:fitssystemwindows="true"             app:contentscrim="?attr/colorprimary"             app:expandedtitlemarginend="64dp"             app:expandedtitlemarginstart="48dp"             app:expandedtitletextappearance="@style/gasmonitortheme.actionbar.titletextappearance"             app:layout_scrollflags="scroll|exituntilcollapsed">              <imageview                 android:id="@+id/toolbar_imageview"                 android:layout_width="match_parent"                 android:layout_height="match_parent"                 android:fitssystemwindows="true"                 android:scaletype="centercrop"                 android:transitionname="car_image"                 app:layout_collapsemode="parallax"                 />              <android.support.v7.widget.toolbar                 android:id="@+id/toolbar_actionbar"                 android:layout_width="match_parent"                 android:layout_height="?attr/actionbarsize"                 app:layout_collapsemode="pin"                 app:popuptheme="@style/themeoverlay.appcompat.light"/>          </android.support.design.widget.collapsingtoolbarlayout>     </android.support.design.widget.appbarlayout>      <android.support.v7.widget.recyclerview         android:layout_gravity="fill_vertical"         android:id="@+id/fragment_recyclerview"         android:layout_width="match_parent"         android:layout_height="match_parent"         app:layout_behavior="@string/appbar_scrolling_view_behavior"         />      <android.support.design.widget.floatingactionbutton         android:id="@+id/fab"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_margin="@dimen/default_side_padding"         android:clickable="true"         android:src="@drawable/ic_add"         android:tint="@color/white"         app:layout_anchor="@id/coordinator_layout"         app:layout_anchorgravity="bottom|right|end"         /> </android.support.design.widget.coordinatorlayout> 

i've gone through , simplified activity match of cheesesquare app (trying find why mine doing this), aside adapter pulling list. i've tested , seen same issue on api 22 & 23.


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