Recyclerview And Toolbar, Can't Scroll Bottom Item Into View

EDIT: See Using the Master/Detail template in ViewPager Fragments (download link) for full code I have a toolbar and a recyclerView. When the layout is first inflated the last item

Solution 1:

I added:

android:layout_gravity="fill_vertical"android:layout_marginBottom="?attr/actionBarSize"

to item_list.xml. The issue persists. The first time the layout is inflated it shows the bottom element as expected. After rotating to landscape and back to portrait it leaves a margin the size of the actionBar at the bottom of the screen.

This issue does not happen in the Master/Detail-flow template available in Android Studio and the code for item_list.xml, item_list_twopane.xml and activity_item_list are exactly the same as the code used in item_list.xml, land/item_list.xml and fragment_item_list.xml in my project. Yet, as the attached images show, the preview of the AppBar shows the flexible space in the Android template but not my code.

EDIT: When I click on the reference for "?attr/actionBarSize" in the template it navigates to a different line in android SDK's values.xml, which starts with <declare-styleable name="AppCompatTheme">. The same line of code in my app references a different line starting with<declare-styleable name="Theme">.

Screenshots:

Solution 2:

<?xml version="1.0" encoding="utf-8"?><android.support.design.widget.CoordinatorLayoutxmlns: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:background="@color/white"android:orientation="vertical"><android.support.design.widget.AppBarLayoutandroid:layout_width="match_parent"android:layout_height="wrap_content"android:theme="@style/AppTheme.AppBarOverlay"><android.support.v7.widget.Toolbarandroid:id="@+id/toolbar"android:layout_width="match_parent"android:layout_height="?attr/actionBarSize"android:background="?attr/colorPrimary"app:popupTheme="@style/AppTheme.PopupOverlay" /></android.support.design.widget.AppBarLayout><LinearLayoutandroid:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical"app:layout_behavior="@string/appbar_scrolling_view_behavior"><android.support.v7.widget.RecyclerViewandroid:id="@+id/item_list"android:layout_width="match_parent"android:layout_height="wrap_content"android:padding="5dp"android:scrollbars="vertical" /></LinearLayout><android.support.design.widget.FloatingActionButtonandroid:id="@+id/fab"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_alignParentBottom="true"android:layout_gravity="bottom|right"android:layout_marginBottom="@dimen/activity_vertical_margin"android:layout_marginRight="@dimen/activity_horizontal_margin"android:src="@drawable/ic_add"app:backgroundTint="@color/colorPrimary" /></android.support.design.widget.CoordinatorLayout>