ViewPage怎么更新数据

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ViewPage更新数据之前执行以下代码

if (dataViewPage.getAdapter() != null) {
    FragmentManager fm = getActivity().getSupportFragmentManager();
    FragmentTransaction ft = fm.beginTransaction();
    @SuppressLint("RestrictedApi")
    List<Fragment> fragments = fm.getFragments();
    if(fragments != null && fragments.size() >0){
        for (int i = 0; i < fragments.size(); i++) {
            ft.remove(fragments.get(i));
        }
    }
    ft.commit();
}