今日头条页面 TabLayout

导包

activity_xml布局

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

<android.support.design.widget.TabLayout
android:id="@+id/ll_title"
android:layout_width=“match_parent”
android:layout_height=“wrap_content”></android.support.design.widget.TabLayout>

</RelativeLayout>

<android.support.v4.view.ViewPager
android:id="@+id/vp_news"
android:layout_width=“match_parent”
android:layout_height=“match_parent”></android.support.v4.view.ViewPager>

MainActivity页面

package com.example.lenovo.a06day12;

import android.support.annotation.Nullable;
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.net.URL;
import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity {
private TabLayout tlTitle;
private ViewPager vpNews;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
 tlTitle=findViewById(R.id.ll_title);
 vpNews=findViewById(R.id.vp_news);

    final List<String> list=new ArrayList<>();
    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");

    List<String> url=new ArrayList<>();
    url.add("top");
    url.add("shehui");
    url.add("guonei");
    url.add("guoji");
    url.add("yule");
    url.add("tiyu");
    url.add("junshi");
    url.add("keji");
    url.add("caijing");
    url.add("shishang");

    final List<Fragment> fragments=new ArrayList<>();
    for (int i = 0; i <url.size() ; i++) {
         NewsFragment fragment=new NewsFragment();
         Bundle bundle=new Bundle();
         bundle.putString("url",url.get(i));

         fragment.setArguments(bundle);
         fragments.add(fragment);
    }

    tlTitle.setTabMode(TabLayout.MODE_SCROLLABLE);
    vpNews.setAdapter(new FragmentPagerAdapter(getSupportFragmentManager()) {
        @Override
        public Fragment getItem(int position) {
            return fragments.get(position);
        }

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

        @Nullable
        @Override
        public CharSequence getPageTitle(int position) {
            return list.get(position);
        }
    });
    tlTitle.setupWithViewPager(vpNews);
}

}

显示数据 NewsFragment页面

package com.example.lenovo.a06day12;

import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Handler;
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.bwie.xlistview.XListView;
import com.google.gson.Gson;

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

/**

• Created by lenovo on 2018-10-16.
  */

public class NewsFragment extends Fragment{
public static final String url=“http://www.xieast.com/api/news/news.php?page=”;
private XListView listView;
private List<News.DataBean> list;
private NewsAdapter adapter;
private String newsurl;
private int page=1;
private Handler handler=new Handler();

@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    Bundle bundle=getArguments();
    newsurl=bundle.getString("url");
}

@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View v = inflater.inflate(R.layout.fragment_news, null, false);
    listView= v.findViewById(R.id.list_view);
    return v;
}

@Override
public void onActivityCreated(@Nullable Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);
   list=new ArrayList<>();
   adapter=new NewsAdapter(getActivity(),list);
   listView.setAdapter(adapter);
   listView.setPullLoadEnable(true);
   listView.setPullRefreshEnable(true);
   listView.setXListViewListener(new XListView.IXListViewListener() {
       @Override
       public void onRefresh() {
           page=1;
           getdata(page,true);
       }

       @Override
       public void onLoadMore() {
         page++;
         getdata(page,false);
       }
   });
    getdata(page,false);
}

private void getdata(int page, final boolean b) {
    new AsyncTask<String, Integer, String>() {
        @Override
        protected String doInBackground(String... strings) {
            return HttpUtils.getInputHttp(strings[0]);
        }

        @Override
        protected void onPostExecute(String s) {
            super.onPostExecute(s);
            Gson gson=new Gson();
            News news=gson.fromJson(s,News.class);
            if (news!=null){
                List<News.DataBean> data=news.getData();
                if (data!=null){
                    if (!b){
                        list.clear();
                    }
                    list.addAll(data);
                    adapter.notifyDataSetChanged();
                }
            }
            handler.postDelayed(new Runnable() {
                @Override
                public void run() {
                    if (b){
                        listView.stopLoadMore();
                    }else{
                        listView.stopRefresh();
                        listView.setRefreshTime("gang");
                    }
                }
            },2000);
        }
    }.execute(url+page);
}

}