<androidx.recyclerview.widget.RecyclerView app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintTop_toBottomOf="@+id/addUser" app:layout_constraintLeft_toLeftOf="parent" android:layout_marginTop="20dp" android:layout_marginBottom="80dp" android:id="@+id/recycleruserDetails" app:layout_constraintVertical_bias="0.0" android:layout_width="match_parent" android:layout_height="0dp" />

<androidx.recyclerview.widget.RecyclerView app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintTop_toBottomOf="@+id/addUser" app:layout_constraintLeft_toLeftOf="parent" android:layout_marginTop="20dp" android:layout_marginBottom="80dp" android:id="@+id/recycleruserDetails" app:layout_constraintVertical_bias="0.0" android:layout_width="match_parent" android:layout_height="0dp" />