<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/activity_base" android:layout_width="match_parent" android:layout_height="match_parent" android:fitsSystemWindows="true" tools:context="org.pacien.tincapp.activities.BaseActivity"> <android.support.design.widget.AppBarLayout android:id="@+id/appbar" android:layout_width="match_parent" android:layout_height="wrap_content" android:paddingTop="@dimen/appbar_padding_top" 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="enterAlways" app:popupTheme="@style/AppTheme.PopupOverlay"> </android.support.v7.widget.Toolbar> </android.support.design.widget.AppBarLayout> <FrameLayout android:id="@+id/main_content" android:layout_width="match_parent" android:layout_height="match_parent" app:layout_behavior="@string/appbar_scrolling_view_behavior"> </FrameLayout> </android.support.design.widget.CoordinatorLayout>