text: <?xml version="1.0" encoding="utf-8"?><!--
    ~ Copyright 2019, 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.
    -->
  
  <LinearLayout 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"
      android:orientation="vertical"
      tools:context="com.example.android.navigationadvancedsample.MainActivity">
  
      <androidx.fragment.app.FragmentContainerView
          android:id="@+id/nav_host_container"
          android:layout_width="match_parent"
          android:layout_height="0dp"
          android:layout_weight="1" />
  
      <com.google.android.material.bottomnavigation.BottomNavigationView
          android:id="@+id/bottom_nav"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          app:menu="@menu/bottom_nav"/>
  </LinearLayout>
  