tablayout

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Main3Activity

package com.example.zhaoukaolainxi;

import android.os.Bundle;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.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.AdapterView;import java.util.ArrayList;import java.util.List;public class Main3Activity extends Fragment implements AdapterView.OnItemClickListener {    private TabLayout tabLayout;    private ViewPager viewPager;    private List<String> list = new ArrayList<String>();    @Nullable    @Override    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {        View view = inflater.inflate(R.layout.activity_main3, null);        tabLayout = (TabLayout)view.findViewById(R.id.tablayout);        viewPager = (ViewPager) view.findViewById(R.id.vp);        list.add("社会新闻");        list.add("国内新闻");        list.add("国际新闻");        list.add("娱乐新闻");        list.add("国内体育行业");        list.add("NBA动态");        list.add("国足资讯");        //tabLayout.setTabMode(TabLayout.MODE_FIXED);        tabLayout.setupWithViewPager(viewPager);        viewPager.setAdapter(new FragmentPagerAdapter(getChildFragmentManager()) {            @Override            public CharSequence getPageTitle(int position) {                return list.get(position);            }            @Override            public Fragment getItem(int position) {                NewsFragment newsFragments = new NewsFragment();                Bundle bundle = new Bundle();                if(list.get(position).equals("社会新闻")){                    bundle.putString("name","social");                }else if (list.get(position).equals("国内新闻")){                    bundle.putString("name","guonei");                }else if (list.get(position).equals("国际新闻")){                    bundle.putString("name","world");                }else if (list.get(position).equals("娱乐新闻")){                    bundle.putString("name","huabian");                }else if (list.get(position).equals("国内体育行业")){                    bundle.putString("name","tiyu");                }else if (list.get(position).equals("NBA动态")){                    bundle.putString("name","nba");                }else if (list.get(position).equals("国足资讯")){                    bundle.putString("name","football");                }                newsFragments.setArguments(bundle);                return newsFragments;            }            @Override            public int getCount() {                return list.size();            }        });        return view;    }    @Override    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {    }}

<android.support.design.widget.TabLayout    android:id="@+id/tablayout"    android:layout_width="match_parent"    android:layout_height="40dp"    app:tabGravity="center"    app:tabIndicatorColor="#ff0000"    app:tabMode="scrollable"    app:tabSelectedTextColor="#ff0000"    app:tabTextColor="#00ff00"></android.support.design.widget.TabLayout><android.support.v4.view.ViewPager    android:id="@+id/vp"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:layout_below="@+id/tablayout"></android.support.v4.view.ViewPager>

NewsFragment

package com.example.zhaoukaolainxi;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 com.handmark.pulltorefresh.library.PullToRefreshBase;import com.handmark.pulltorefresh.library.PullToRefreshListView;import java.io.BufferedReader;import java.io.InputStream;import java.io.InputStreamReader;import java.net.HttpURLConnection;import java.net.URL;import java.net.URLEncoder;import java.util.List;public class NewsFragment extends Fragment {    private PullToRefreshListView pu;    private String pagesize="20";    private int  page=1;    private String mstrings;    @Nullable    @Override    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {        View inflate = inflater.inflate(R.layout.news, null);        pu  = (PullToRefreshListView) inflate.findViewById(R.id.list_view);        pu.getRefreshableView();        pu.setMode(PullToRefreshBase.Mode.BOTH);        pu.setScrollingWhileRefreshingEnabled(true);        pu.setOnRefreshListener(new PullToRefreshBase.OnRefreshListener2<ListView>() {            //   //完成下拉刷新操作            @Override            public void onPullDownToRefresh(PullToRefreshBase<ListView> refreshView) {                refreshView.postDelayed(new Runnable() {                    @Override                    public void run() {                        page=1;                        getDataFromNet(mstrings,pagesize,page);                        pu.onRefreshComplete();                    }                }, 2000);            }            //完成上拉刷新操作            @Override            public void onPullUpToRefresh(PullToRefreshBase<ListView> refreshView) {                page++;                refreshView.postDelayed(new Runnable() {                    @Override                    public void run() {                        if(mstrings!=null&&pagesize!=null){                            getDataFromNet(mstrings,pagesize,page);                        }                        pu.onRefreshComplete();                    }                }, 2000);            }        });        return inflate;    }    @Override    public void onActivityCreated(@Nullable Bundle savedInstanceState) {        super.onActivityCreated(savedInstanceState);        Bundle bundle = getArguments();        mstrings = bundle.getString("name","social");        getDataFromNet(mstrings,pagesize,page);    }    private void getDataFromNet(final String string, final String pagesize, final int page) {        AsyncTask<Void, Void, String> asyncTask = new AsyncTask<Void, Void, String>() {            @Override            protected String doInBackground(Void... voids) {                // http://api.tianapi.com/wxnew/?key=71e58b5b2f930eaf1f937407acde08fe&num=10&page=8                //http://api.kkmh.com/v1/topic_new/discovery_module_list/210?sa_event=eyJwcm9qZWN0Ijoia3VhaWthbl9hcHAiLCJ0aW1lIjoxNDg3OTE2MTcwNjE5LCJwcm9wZXJ0aWVzIjp7IiRvc192ZXJzaW9uIjoiNC4yLjIiLCJHZW5kZXJUeXBlIjoi5peg5rOV6I635Y-WIiwiVHJpZ2dlckl0ZW0iOjE3LCJWaXNpdFBhZ2VOYW1lIjoi5paw5L2c5LiK5p62IiwiJGxpYl92ZXJzaW9uIjoiMS42LjM0IiwiJG5ldHdvcmtfdHlwZSI6IldJRkkiLCIkd2lmaSI6dHJ1ZSwiJG1hbnVmYWN0dXJlciI6InNhbXN1bmciLCJUcmlnZ2VySXRlbU5hbWUiOiLmlrDkvZzkuIrmnrYiLCIkc2NyZWVuX2hlaWdodCI6NTc2LCJMaXN0VHlwZSI6IuaXp-eJiCIsIlByb3BlcnR5RXZlbnQiOiJSZWFkTGlzdCIsIlRyaWdnZXJPcmRlck51bWJlciI6MCwiRmluZFRhYk5hbWUiOiLmjqjojZAiLCJhYnRlc3RfZ3JvdXAiOjQ2LCIkc2NyZWVuX3dpZHRoIjoxMDI0LCIkb3MiOiJBbmRyb2lkIiwiVHJpZ2dlckl0ZW1UeXBlIjowLCJUcmlnZ2VyUGFnZSI6IkZpbmRQYWdlIiwiJGNhcnJpZXIiOiJDTUNDIiwiJG1vZGVsIjoiR1QtUDUyMTAiLCIkYXBwX3ZlcnNpb24iOiIzLjguMSJ9LCJ0eXBlIjoidHJhY2siLCJkaXN0aW5jdF9pZCI6IkE6OTA1MTA0Mjc2Mzc1NTEwOSIsIm9yaWdpbmFsX2lkIjoiQTo5MDUxMDQyNzYzNzU1MTA5IiwiZXZlbnQiOiJSZWFkTGlzdCJ9&style=2&offset=0&limit=3                String path = "http://api.tianapi.com/"+ URLEncoder.encode(string)+"/?key=71e58b5b2f930eaf1937407acde08fe&num="+pagesize+"&page="+page+"";                Log.e("wzq", "doInBackground: "+path);                try {                    URL url = new URL(path);                    HttpURLConnection connection = (HttpURLConnection) url.openConnection();                    connection.setRequestMethod("GET");                    connection.setReadTimeout(5000);                    connection.setConnectTimeout(5000);                    if ((connection.getResponseCode() == 200)) {                        InputStream inputStream = connection.getInputStream();                        String json = streamToString(inputStream,"utf-8");                        return json;                    }                } catch (java.io.IOException e) {                    e.printStackTrace();                }                return "";            }            @Override            protected void onPostExecute(String json) {                Gson gson = new Gson();                Bea bean = gson.fromJson(json, Bea.class);                List<Bea.NewslistBean> list = bean.getNewslist();                if (list != null) {                    MyAdapter1 myAdapter = new MyAdapter1(getActivity(), list);                    pu.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;    }}

<com.handmark.pulltorefresh.library.PullToRefreshListView    android:id="@+id/list_view"    android:layout_width="match_parent"    android:layout_height="match_parent"    ></com.handmark.pulltorefresh.library.PullToRefreshListView>

Bean

MyAdapter1

package com.example.zhaoukaolainxi;import android.content.Context;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.ImageView;import android.widget.TextView;import com.nostra13.universalimageloader.core.ImageLoader;import java.util.List;/** * Created by 呵呵 on 2017/10/26. */public class MyAdapter1 extends BaseAdapter{    Context context;    private List<Bea.NewslistBean> list;    public MyAdapter1(Context context, List<Bea.NewslistBean> list) {        this.context = context;        this.list = list;    }    //视图数量    @Override    public int getCount() {        return list.size();    }    //视图    @Override    public Object getItem(int i) {        return list.get(i);    }    //视图id    @Override    public long getItemId(int i) {        return i;    }    @Override    public View getView(int position, View convertView, ViewGroup parent) {        ViewHolder holder = null;        if(convertView == null){            holder = new ViewHolder();            //获得布局            convertView = View.inflate(context,R.layout.item,null);            //初始化控件            holder.tv = (TextView) convertView.findViewById(R.id.tv1);            holder.tv1 = (TextView) convertView.findViewById(R.id.tv2);            holder.img = (ImageView) convertView.findViewById(R.id.img);            convertView.setTag(holder);        }else{            holder = (ViewHolder) convertView.getTag();        }        //显示获得的数据显示在listview中        holder.tv.setText(list.get(position).getTitle());        holder.tv1.setText(list.get(position).getCtime());        //显示图片在listview中        ImageLoader.getInstance().displayImage(list.get(position).getPicUrl(),holder.img);        return convertView;    }    //优化    class ViewHolder{        TextView tv,tv1;        ImageView img;    }

<ImageView    android:id="@+id/img"    android:layout_width="100dp"    android:layout_height="100dp" /><RelativeLayout    android:layout_width="match_parent"    android:layout_height="100dp"    android:layout_alignParentLeft="true"    android:layout_alignParentStart="true"    android:layout_below="@+id/tv1">    <TextView        android:id="@+id/tv1"        android:layout_width="match_parent"        android:layout_height="wrap_content" />    <TextView        android:id="@+id/tv2"        android:layout_width="150dp"        android:layout_height="wrap_content"        android:layout_alignParentBottom="true"        android:layout_alignParentRight="true"        android:layout_alignParentEnd="true" /></RelativeLayout>

上一个掉

<ImageView    android:id="@+id/img"    android:layout_width="100dp"    android:layout_height="50dp"    android:src="@mipmap/ic_launcher"/><LinearLayout    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical">    <TextView        android:id="@+id/tv_1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="你好"/>    <TextView        android:id="@+id/tv_2"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="我不好"        android:layout_marginTop="8dp"/></LinearLayout>

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