Fragment解析并展示

package com.bawei.day04.fragment;

import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.annotation.NonNull;
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.bawei.day04.HttpUtil;
import com.bawei.day04.R;
import com.bawei.day04.adapter.MyAdapter;
import com.bawei.day04.bean.JsonBean;
import com.google.gson.Gson;

import java.util.ArrayList;
import java.util.List;

/**

• @Author：Lenovo

• @E-mail：

• @Date：2019/2/15 19:33

• @Description：描述信息
  */
  public class Frag01 extends Fragment {
  String strUrl=“http://gank.io/api/data/福利/10/1”;
  private ListView listView;

  @Nullable
  @Override
  public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
  //第一步 ：权限
  //第二部：找空间
  View view=inflater.inflate(R.layout.frag01,container,false);
  listView = view.findViewById(R.id.list_view);
  return view;
  }

  @Override
  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
  super.onActivityCreated(savedInstanceState);
  //第三部：数据（ 网络请求数据 使用handler+子线程）
  new Thread(){
  @Override
  public void run() {
  super.run();
  //第四部:判断网络
  Boolean isNet= HttpUtil.isNet(getActivity());
  String s="";
  if (isNet){
  //第五步:如果有网络就加载网络数据
  s=HttpUtil.requestString(strUrl);
  //得到数据后发送给handler进行解析
  }else{
  //如果没网就就加载数据库
  }
  //第六步 把数据发送给主线程
  Message message=new Message();
  message.what=0;
  message.obj=s;
  handler.sendMessage(message);
  }
  }.start();
  //适配器
  }
  Handler handler=new Handler(){
  @Override
  public void handleMessage(Message msg) {
  super.handleMessage(msg);
  switch (msg.what){
  case 0:
  //第七步:得到数据并解析
  String s= (String) msg.obj;
  //解析
  Gson gson=new Gson();
  JsonBean jsonBean=gson.fromJson(s,JsonBean.class);
  List<JsonBean.ResultsBean> list = jsonBean.getResults();
  //第八步:展示数据到listview上
  listView.setAdapter(new MyAdapter((ArrayList<JsonBean.ResultsBean>) list,getActivity()));
  break;
  }
  }
  };
  }