res/layout/all_apps_tabs.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
  ~ Copyright (C) 2017 The Android Open Source Project
  ~
  ~ Licensed under the Apache License, Version 2.0 (the "License");
  ~ you may not use this file except in compliance with the License.
  ~ You may obtain a copy of the License at
  ~
  ~      http://www.apache.org/licenses/LICENSE-2.0
  ~
  ~ Unless required by applicable law or agreed to in writing, software
  ~ distributed under the License is distributed on an "AS IS" BASIS,
  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  ~ See the License for the specific language governing permissions and
  ~ limitations under the License.
  -->
<com.android.launcher3.allapps.AllAppsPagedView
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:launcher="http://schemas.android.com/apk/res-auto"
    android:id="@+id/all_apps_tabs_view_pager"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_below="@id/search_container_all_apps"
    android:layout_gravity="center_horizontal|top"
    android:layout_marginTop="@dimen/all_apps_header_pill_height"
    android:clipChildren="true"
    android:clipToPadding="false"
    android:descendantFocusability="afterDescendants"
    android:paddingTop="@dimen/all_apps_header_top_padding"
    launcher:pageIndicator="@+id/tabs" >

    <include layout="@layout/all_apps_rv_layout" />

    <include layout="@layout/all_apps_rv_layout" />

</com.android.launcher3.allapps.AllAppsPagedView>