<RelativeLayout
    android:layout_width="match_parent"
        android:layout_height="match_parent">

    <android.support.v7.widget.Toolbar
                xmlns:android="http://schemas.android.com/apk/res/android"
                xmlns:app="http://schemas.android.com/apk/res-auto"
               android:id="@+id/toolbar"
               android:layout_width="match_parent"
               android:layout_height="wrap_content"
               android:minHeight="?attr/actionBarSize"
              android:background="#007AFF"
              app:layout_scrollFlags="scroll|enterAlways"
              android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
              app:popupTheme="@style/ThemeOverlay.AppCompat.Dark" />

    <FrameLayout
          android:id="@+id/frame_fragmentholder"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:background="@color/yellow"
          android:layout_below="@id/toolbar"
          android:layout_above="@id/bottom_nav"/>

    <android.support.design.widget.BottomNavigationView
          android:id="@+id/bottom_nav"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:layout_alignParentBottom="true"
          app:itemIconTint="@drawable/selector"
          app:itemTextColor="@drawable/selector"
          android:background="#007AFF"
          app:menu="@menu/bottombar_menu" />
</RelativeLayout>