Meshtastic-Android/app/src/main/res/layout/activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <com.google.android.material.appbar.AppBarLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:theme="@style/AppTheme.AppBarOverlay">

        <TextView
            android:id="@+id/title"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:minHeight="?actionBarSize"
            android:padding="16dp"
            android:text="@string/app_name"
            android:textAppearance="@style/TextAppearance.Widget.AppCompat.Toolbar.Title" />

        <com.google.android.material.tabs.TabLayout
            android:id="@+id/tab_layout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

            <!--             Screen.messages -> MessagesContent()
                Screen.settings -> SettingsContent()
                Screen.users -> UsersContent()
                Screen.channel -> ChannelContent(UIState.getChannel())
                Screen.map -> MapContent() -->

            /--

            <com.google.android.material.tabs.TabItem
                android:icon="@drawable/ic_twotone_message_24"
                android:text="Messages"
                android:layout_height="wrap_content"
                android:layout_width="wrap_content" />

            <com.google.android.material.tabs.TabItem
                android:icon="@drawable/ic_twotone_settings_applications_24"
                android:text="Settings"
                android:layout_height="wrap_content"
                android:layout_width="wrap_content" />
            -->

        </com.google.android.material.tabs.TabLayout>

    </com.google.android.material.appbar.AppBarLayout>

    <androidx.viewpager2.widget.ViewPager2
        android:id="@+id/pager"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_behavior="com.google.android.material.appbar.AppBarLayout$ScrollingViewBehavior" />

</androidx.coordinatorlayout.widget.CoordinatorLayout>