app/src/main/res/layout/activity_room.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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">
<com.google.android.material.tabs.TabLayout
android:id="@+id/roomActivityTabs"
android:layout_width="419dp"
android:layout_height="57dp"
app:layout_constraintBottom_toTopOf="@+id/roomActivityPager"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<com.google.android.material.tabs.TabItem
android:id="@+id/roomActivityMessagesTab"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="@string/roomActivityMessagesTab" />
<com.google.android.material.tabs.TabItem
android:id="@+id/roomActivityParticipantsTab"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="@string/roomActivityParticipantsTab" />
</com.google.android.material.tabs.TabLayout>
<androidx.viewpager2.widget.ViewPager2
android:id="@+id/roomActivityPager"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginStart="8dp"
android:layout_marginEnd="8dp"
android:layout_marginBottom="16dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/roomActivityTabs">
</androidx.viewpager2.widget.ViewPager2>
</androidx.constraintlayout.widget.ConstraintLayout>