如何刷新列表视图适配器？

Question

我遇到这个问题，如果我在片段之间切换就可以。但是当我从另一个活动退出时，它不会刷新。

我对此有点弱，如果可能，请说明在哪里添加代码，谢谢你＆＃39; ll

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.favorite_page, null);

    lv = (ListView) view.findViewById(R.id.listview_favorite);

    list = new ArrayList<>();

    adapter = new BaseAdapter() {
        ...
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            TextView tv = new TextView(getActivity());
            ...
            convertView = tv;
            return convertView;
        }
    };
    lv.setAdapter(adapter);

    List<FavoriteBean> favData = DataSupport.findAll(FavoriteBean.class);
    InputStream inputStream = getResources().openRawResource(R.raw.a);
    try {
        JSONObject obj = new JSONObject(LoadFiles.getString(inputStream));
        JSONArray jarry = obj.getJSONArray("items");
       ...
    } catch (JSONException e) {
        e.printStackTrace();
    }

}
}

Answer 1

尝试：

((BaseAdapter)lv.getAdapter()).notifyDatasetChanged();

Answer 2

使用adapter.notifyDataSetChanged（）;