public class MyF1 extends Fragment{


    private ListView lv_httpUrlConnection;
    private String urlStr = "https://api.tianapi.com/wxnew/?key=8d6e3228d25298f13af4fc40ce6c9679&num=10";
    private MyAdapter adapter;
    List<MyNews.NewslistBean> list = new ArrayList<>();

    @Nullable
    @Override
 
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {

        View view = inflater.inflate(R.layout.myf1, container, false);
        lv_httpUrlConnection = view.findViewById(R.id.lv_HttpUrlConnection);
        return view;
    }

    @Override
 
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);

       new MyAsyncTask().execute(urlStr);



        adapter = new MyAdapter();
        lv_httpUrlConnection.setAdapter(adapter);

        adapter.notifyDataSetChanged();;

    }

    class 
 
MyAsyncTask  extends AsyncTask<String, Void, String > {
        private String netJson;
        private String result;

        @Override
protected String doInBackground(String... strings) {
            String s = strings[0];

                netJson = NetUtils.getJsonByHttpUrlConnection(s);
                return netJson;
        }

        @Override
protected void onPostExecute(String s) {
            super.onPostExecute(s);

                Gson gson = new Gson();
                MyNews news= gson.fromJson(s, MyNews.class);
                List<MyNews.NewslistBean> nal =  news.getNewslist();
                list.addAll(nal);

            Log.e("aa",list.toString());
                adapter.notifyDataSetChanged();
        }
    }





   class MyAdapter extends BaseAdapter{

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

        @Override
public Object getItem(int i) {
            return null;
        }

        @Override
public long getItemId(int i) {
            return 0;
        }

        @Override
public View getView(int i, View view, ViewGroup viewGroup) {
            if(view == null){
                view = View.inflate(getActivity(),R.layout.myf1_item,null);
            }
                 TextView f1_tv =  view.findViewById(R.id.f1_tv);
                  f1_tv.setText(list.get(i).getTitle().toString());
               ImageView f1_img =  view.findViewById(R.id.f1_img);
          //  f1_img.setImageBitmap();
return view;
        }
    }


}