头条

TabLayout关联
package com.example.tablayout_demo;

import android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

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


public class MainActivity extends AppCompatActivity {


    private TabLayout tabLayout;
    private ViewPager viewPager;
    private List<String> list=new ArrayList<String>();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
        tabLayout = (TabLayout) findViewById(R.id.tablayout);
        viewPager = (ViewPager) findViewById(R.id.viewpager);
        list.add("头条");
        list.add("社会");
        list.add("国内");
        list.add("国际");
        list.add("娱乐");
        list.add("体育");
        list.add("军事");
        list.add("科技");
        list.add("财经");
        list.add("时尚");

        //Viewpager要展示页面...设置适配器
        //初始化fragment页面适配器 =》new FragmentPagerAdapter
        //获取fragment 管理器=》getSupportFragmentManager
        //getpagetitle 获取当前页面显示的标题是tab对应的标题 position 当前页面的标志
        //getItem 获取当前位置对应的fragment


        viewPager.setAdapter(new FragmentPagerAdapter(getSupportFragmentManager()) {
            //得到当前页的标题,,,也就是设置当前页面显示的标题是tab对应的标题
            @Override
            public CharSequence getPageTitle(int position) {

                return list.get(position);
            }

            @Override
            public Fragment getItem(int position) {
                //一般我们在这个位置对比一下标题是什么,,,然后返回对应的fragment
                //初始化fragment  对应position有多少，fragment有多少
                NewsFragment newsFragment = new NewsFragment();
                //初始化bundle （数据盒子，装数据元素）
                Bundle bundle = new Bundle();

                //Fragment fragment = null;

                if (list.get(position).equals("头条")){

                    //fragment = new TouTiaoFragment();
                    bundle.putString("name","top");
                }else if (list.get(position).equals("社会")){
                    bundle.putString("name","shehui");
                }else if (list.get(position).equals("国内")){
                    bundle.putString("name","guonei");
                }else if (list.get(position).equals("国际")){
                    bundle.putString("name","guoji");
                }else if (list.get(position).equals("娱乐")){
                    bundle.putString("name","yule");
                }else if (list.get(position).equals("体育")){
                    bundle.putString("name","tiyu");
                }else if (list.get(position).equals("军事")){
                    bundle.putString("name","junshi");
                }else if (list.get(position).equals("科技")){
                    bundle.putString("name","keji");
                }else if (list.get(position).equals("财经")){
                    bundle.putString("name","caijing");
                }else if (list.get(position).equals("时尚")){
                    bundle.putString("name","shishang");
                }
                //给fragment 加bundle 数据
                //activity与fragment 1.getset，2.接口回调，3.setArguments ,getAraguments
                newsFragment.setArguments(bundle);



                return newsFragment;
            }

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


        //tablayout要与viewpager关联
        tabLayout.setupWithViewPager(viewPager);





    }
}


网络请求和json解析
package com.example.tablayout_demo;

import android.os.AsyncTask;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;

import com.google.gson.Gson;

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.List;

/**
 * Created by wk on 2017/9/13.
 */
public class NewsFragment extends Fragment {
    private ListView listView;

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

        listView = (ListView) view.findViewById(R.id.listview);

        return view;
    }

    @Override
    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);

        Bundle bundle = getArguments();

        String string = bundle.getString("name", "top");

        getDataFromNet(string);

    }

    private void getDataFromNet(final String string) {
        AsyncTask<Void, Void, String> asyncTask = new AsyncTask<Void, Void, String>() {
            @Override
            protected String doInBackground(Void... voids) {

                String path = "http://v.juhe.cn/toutiao/index?type="+string+"&key=597b4f9dcb50e051fd725a9ec54d6653";
                try {
                    URL url = new URL(path);

                    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
                    //设置
                    connection.setRequestMethod("POST");
                    connection.setReadTimeout(5000);
                    connection.setConnectTimeout(5000);

                    //获取
                    int responseCode = connection.getResponseCode();
                   // Log.d("aaa",responseCode+"==========================");
                    if (responseCode == 200){
                        InputStream inputStream = connection.getInputStream();

                        String json = streamToString(inputStream,"utf-8");

                        return json;
                    }

                } catch (Exception e) {
                    e.printStackTrace();
                }

                return "";
            }

            @Override
            protected void onPostExecute(String json) {
                Gson gson = new Gson();

                DataDataBean dataDataBean = gson.fromJson(json, DataDataBean.class);

                List<DataDataBean.ResultBean.DataBean> list = dataDataBean.getResult().getData();

                MyAdapter myAdapter = new MyAdapter(getActivity(), list);

                listView.setAdapter(myAdapter);

            }
        };

        asyncTask.execute();

    }

    private String streamToString(InputStream inputStream,String charset) {
        try {
            InputStreamReader inputStreamReader = new InputStreamReader(inputStream,charset);

            BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
            String s = null;
            StringBuilder builder = new StringBuilder();
            while ((s = bufferedReader.readLine()) != null){
                builder.append(s);
            }

            bufferedReader.close();
            return builder.toString();

        } catch (Exception e) {
            e.printStackTrace();
        }

        return  null;
    }
}
适配器
package com.example.tablayout_demo;

import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;

import java.util.List;

/**
 * Created by wk on 2017/9/13.
 */
public class MyAdapter extends BaseAdapter {


    Context context;
    List<DataDataBean.ResultBean.DataBean> list;

    public MyAdapter(Context context, List<DataDataBean.ResultBean.DataBean> list) {
        this.context = context;
        this.list = list;
    }

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

    @Override
    public Object getItem(int i) {
        return list.get(i);
    }

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

    @Override
    public View getView(int i, View view, ViewGroup viewGroup) {
        if (view == null){
            view = View.inflate(context,android.R.layout.simple_list_item_1,null);
        }

        TextView textView = (TextView) view.findViewById(android.R.id.text1);

        textView.setText(list.get(i).getTitle());

        return view;
    }
}

Bean对象通过网络请求自己封装