将layout_gravity设置为居中的TextView内部片段隐藏在选项卡式活动的选项卡后面

<androidx.constraintlayout.widget.ConstraintLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <com.google.android.material.tabs.TabLayout
        android:id="@+id/tabLayout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        ... />

    <androidx.viewpager.widget.ViewPager
        android:id="@+id/viewPager"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        app:layout_constraintTop_toBottomOf="@id/tabLayout"
        app:layout_constraintBottom_toBottomOf="parent"
        ... />

    <TextView
        android:id="@+id/hiddenTextView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hidden Text"
        android:layout_gravity="center"
        android:visibility="gone"
        ... />

</androidx.constraintlayout.widget.ConstraintLayout>

TextView hiddenTextView = findViewById(R.id.hiddenTextView);
hiddenTextView.setVisibility(View.GONE);