How do I put a scrollview in this layout without clashing with the bottom navigation? - scrollview

Question

I have tried so much and I can't get this to work.. How do I design this layout so that I can have a scrollview in between the appbar and the bottom navigation without moving the bottom navigation under the view or having part of the scrollview hidden behind the appbar or bottom navigation?
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbarTop"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#drawable/white_grey_border_bottom">
<TextView
android:id="#+id/appBarLabel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="Lost & Found"
android:textColor="#color/colorBlack"
android:textSize="30dp"
android:textStyle="bold" />
</android.support.v7.widget.Toolbar>
</android.support.design.widget.AppBarLayout>
<android.support.design.widget.BottomNavigationView
android:id="#+id/bottomNavView_Bar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentStart="true"
android:layout_alignParentBottom="true"
android:background="#drawable/white_grey_border_top"
app:menu="#menu/bottom_navigation_menu">
</android.support.design.widget.BottomNavigationView>
</RelativeLayout>

Answer 1

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<android.support.design.widget.CoordinatorLayout
android:id="#+id/coordinator_root"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1">
<!-- Add your AppBarLayout and ScrollView here, inside the CoordinatorLayout -->
</android.support.design.widget.CoordinatorLayout>
<android.support.design.widget.BottomNavigationView
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</LinearLayout>