在TabLayout+ViewPager2中选择第三页作为默认页面

我试图将第三个选项卡设为默认选项卡，但下面的代码不起作用：

public class MessagesFragment extends Fragment {
private FragmentsAdapter fragmentsAdapter;
private ViewPager2 viewPager;
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_messages, container, false);
}
@Override
public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
fragmentsAdapter = new FragmentsAdapter(this);
viewPager = view.findViewById(R.id.pager);
viewPager.setAdapter(fragmentsAdapter);
viewPager.setCurrentItem(2);
TabLayout tabLayout = view.findViewById(R.id.tab_layout);
TabLayoutMediator.TabConfigurationStrategy tabConfigurationStrategy = new TabLayoutMediator.TabConfigurationStrategy() {
@Override
public void onConfigureTab(@NonNull TabLayout.Tab tab, int position) {
switch (position) {
case FragmentsAdapter.MESSAGES_NEW:
tab.setText(R.string.navMessagesNew);
break;
case FragmentsAdapter.MESSAGES_READ:
tab.setText(R.string.navMessagesRead);
break;
case FragmentsAdapter.SETTINGS:
tab.setText(R.string.navSettings);
break;
default:
throw new IllegalArgumentException("There is no fragment for that position = " + position);
}
}
};
new TabLayoutMediator(tabLayout, viewPager, tabConfigurationStrategy).attach();
}
}

我使用的是TabLayout和ViewPage2。一直以来，第一个选项卡都是默认的。有人能建议如何将我的账单的三分之一作为默认值吗？感谢