zumo_2.0_android/app/src/main/res/layout/activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
  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:background="@color/CFFFFFF"
  android:orientation="vertical">

  <FrameLayout
    android:id="@+id/container_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/CFFFFFF"
    android:orientation="vertical"
    />
  <!--app:layout_behavior="@string/appbar_scrolling_view_behavior"-->

  <android.support.design.widget.AppBarLayout
    android:id="@+id/layout_app_bar"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    app:elevation="0dp"
    >

    <android.support.v7.widget.Toolbar
      android:id="@+id/toolbar"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:background="@color/CFFFFFF"
      android:minHeight="0dp"
      >

    </android.support.v7.widget.Toolbar>
  </android.support.design.widget.AppBarLayout>

  <!--<android.support.design.widget.FloatingActionButton-->
  <!--android:id="@+id/fab"-->
  <!--android:layout_width="wrap_content"-->
  <!--android:layout_height="wrap_content"-->
  <!--android:layout_gravity="bottom|end"-->
  <!--android:layout_margin="@dimen/fab_margin"-->
  <!--android:src="@android:drawable/ic_dialog_info"/>-->

</android.support.design.widget.CoordinatorLayout>