如何在ViewPager中更新所选项目的样式？

public class CustomPagerAdapter extends PagerAdapter {
    private List<View> views;

    public CustomPagerAdapter(List<View> views) {
        this.views = views;
    }

    @Override
    public int getCount() {
        return views.size();
    }

    @Override
    public boolean isViewFromObject(@NonNull View view, @NonNull Object object) {
        return view == object;
    }

    @NonNull
    @Override
    public Object instantiateItem(@NonNull ViewGroup container, int position) {
        View view = views.get(position);
        container.addView(view);
        return view;
    }

    @Override
    public void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) {
        container.removeView((View) object);
    }

    @Override
    public int getItemPosition(@NonNull Object object) {
        // 返回POSITION_NONE来强制重新加载所有项目
        return POSITION_NONE;
    }
}

// 更新样式的项目位置
int position = 2;

// 更新样式
viewPager.getAdapter().notifyDataSetChanged();

// 滚动到指定位置
viewPager.setCurrentItem(position);