Fragment1

package com.example.week;

import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;

import com.google.gson.Gson;

/**
 * Created by 生哥 on 2017/12/2.
 */

public class Fragment1 extends Fragment {
    private String data;
    private ListView lv;
    Handler handler = new Handler(){
        @Override
        public void handleMessage(Message msg) {
            if(msg.what == 0){
                Gson gson = new Gson();
                News ns = gson.fromJson(data,News.class);
                My my = new My(ns.getNewslist(),getActivity());
               lv.setAdapter(my);
            }
        }
    };

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment1,container,false);
        lv =view.findViewById(R.id.list_view1);
        return view;
    }

    @Override
    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        final NewUtils news = new NewUtils();
        new Thread(){
            @Override
            public void run() {
                data = news.getJsonUrl("?key=32b83b189e5e5e520db1612a83d82033&num=10");
                handler.sendEmptyMessage(0);
            }
        }.start();

    }
}