content_main.xml

<EditText
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:id="@ id/et_text"
   android:layout_alignParentTop="true"
   android:layout_alignParentLeft="true"
   android:layout_alignParentStart="true"
   android:layout_alignParentRight="true"
   android:layout_alignParentEnd="true" />
 
<co.moonmonkeylabs.realmrecyclerview.RealmRecyclerView
   android:id="@ id/rv_notes"
   android:layout_width="match_parent"
   android:layout_height="match_parent"
   app:rrvIsRefreshable="false"
   app:rrvLayoutType="LinearLayout"
   app:rrvSwipeToDelete="true"
   android:layout_below="@ id/et_text"
   android:layout_alignParentLeft="true"
   android:layout_alignParentStart="true" />