依据
将 FragmentAdapter adapter = new FragmentAdapter(getActivity().getSupportFragmentManager(), fragments, titleList); 更改为 FragmentAdapter adapter = new FragmentAdapter(getChildFragmentManager(),fragments,titleList);
将
FragmentAdapter adapter = new FragmentAdapter(getActivity().getSupportFragmentManager(), fragments, titleList);
更改为
FragmentAdapter adapter = new FragmentAdapter(getChildFragmentManager(),fragments,titleList);