XlistView

package com.example.bwie.day9;

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.AsyncTask;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;

import com.example.bwie.day9.News.Bean;
import com.example.bwie.day9.view.XListView;
import com.google.gson.Gson;

import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.List;

public class MainActivity extends AppCompatActivity implements XListView.IXListViewListener{
    XListView lv;
    MyAdapter adapter;
    Bean be;
    List<Bean.ResultBean.DataBean> dateBean;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        lv = (XListView) findViewById(R.id.lv);
        lv.setPullLoadEnable(true);
        lv.setXListViewListener(this);
        getInto();

    }

    protected Bitmap getImg(String path) {
        Bitmap bit = null;
        try {
            URL url = new URL(path);
            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
            conn.setRequestMethod("GET");
            conn.setConnectTimeout(5000);
            conn.setReadTimeout(5000);
            int code = conn.getResponseCode();
            if (code == 200) {
                InputStream is = conn.getInputStream();
                bit = BitmapFactory.decodeStream(is);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return bit;
    }

    //刷新
    @Override
    public void onRefresh() {
       getInto();
        onLoad();
    }
    public void onLoad()
    {
        lv.stopRefresh();//停止刷新
        lv.stopLoadMore();//停止加载
        lv.setRefreshTime("");
    }
    //加载
    @Override
    public void onLoadMore() {
        new AsyncTask<String, Integer, String>() {
            @Override
            protected String doInBackground(String... strings) {
                String result=getConn();
                return result;
            }

            @Override
            protected void onPostExecute(String result) {
                Gson gson=new Gson();
                be=gson.fromJson(result,Bean.class);
                List<Bean.ResultBean.DataBean> list=be.getResult().getData();
                dateBean.addAll(list);
                adapter.notifyDataSetChanged();
                super.onPostExecute(result);
            }
        }.execute();
        onLoad();
    }

    public class MyAdapter extends BaseAdapter {
        public static final int TYPE_ONE = 0;
        public static final int TYPE_TWO = 1;
        public static final int TYPE_THREE = 2;

        @Override
        public int getCount() {
            if (be != null) {
                return dateBean.size();
            }
            return 0;
        }

        @Override
        public int getItemViewType(int position) {
            if (dateBean.get(position).getThumbnail_pic_s03()!=null) {
                return TYPE_ONE;
            } else if (dateBean.get(position).getThumbnail_pic_s02()!=null) {
                return TYPE_TWO;
            } else {
                return TYPE_THREE;
            }
        }

        @Override
        public int getViewTypeCount() {
            return 3;
        }

        @Override
        public Object getItem(int i) {
            return null;
        }

        @Override
        public long getItemId(int i) {
            return 0;
        }

        @Override
        public View getView(final int i, View view, ViewGroup viewGroup) {
            ViewHolder holder = null;
            ViewHolder1 holder1 = null;
            ViewHolder2 holder2 = null;
            int c = getItemViewType(i);
            if (view == null) {
                if (c == 0) {

                    view = View.inflate(MainActivity.this, R.layout.list_item, null);
                    holder = new ViewHolder();
                    holder.tx1 = (TextView) view.findViewById(R.id.tx1);
                    holder.im1 = (ImageView) view.findViewById(R.id.im1);
                    holder.im2 = (ImageView) view.findViewById(R.id.im2);
                    holder.im3 = (ImageView) view.findViewById(R.id.im3);
                    view.setTag(holder);
                }else if (c == 1) {
                    view = View.inflate(MainActivity.this, R.layout.list_item1, null);
                    holder1 = new ViewHolder1();
                    holder1.tv1 = (TextView) view.findViewById(R.id.tv1);
                    holder1.iv1 = (ImageView) view.findViewById(R.id.iv1);
                    holder1.iv2 = (ImageView) view.findViewById(R.id.iv2);
                    view.setTag(holder1);
                } else {
                    view = View.inflate(MainActivity.this, R.layout.list_item2, null);
                    holder2 = new ViewHolder2();
                    holder2.tt1 = (TextView) view.findViewById(R.id.tt1);
                    holder2.imv1 = (ImageView) view.findViewById(R.id.imv1);
                    view.setTag(holder2);
                }
            } else {
        if (c == 0) {
            holder = (ViewHolder) view.getTag();
        } else if (c == 1) {
            holder1 = (ViewHolder1) view.getTag();
        } else {
            holder2 = (ViewHolder2) view.getTag();
        }
    }

    if(c==0)

    {
        holder.tx1.setText(dateBean.get(i).getTitle());
        final ViewHolder finalHolder = holder;
        new Thread(new Runnable() {
            @Override
            public void run() {
                final Bitmap img = getImg(dateBean.get(i).getThumbnail_pic_s());
                final Bitmap img1 = getImg(dateBean.get(i).getThumbnail_pic_s02());
                final Bitmap img2 = getImg(dateBean.get(i).getThumbnail_pic_s03());
                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        finalHolder.im1.setImageBitmap(img);
                        finalHolder.im2.setImageBitmap(img1);
                        finalHolder.im3.setImageBitmap(img2);
                    }
                });
            }
        }).start();
    }

    else if(c==1)

    {
        holder1.tv1.setText(dateBean.get(i).getTitle());
        final ViewHolder1 finalHolder1 = holder1;
        new Thread(new Runnable() {
            @Override
            public void run() {
                final Bitmap img = getImg(dateBean.get(i).getThumbnail_pic_s());
                final Bitmap img1 = getImg(dateBean.get(i).getThumbnail_pic_s02());
                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        finalHolder1.iv1.setImageBitmap(img);
                        finalHolder1.iv2.setImageBitmap(img1);
                    }
                });
            }
        }).start();
    }

    else

    {
        holder2.tt1.setText(dateBean.get(i).getTitle());
        final ViewHolder2 finalHolder2 = holder2;
        new Thread(new Runnable() {
            @Override
            public void run() {
                final Bitmap img = getImg(dateBean.get(i).getThumbnail_pic_s());
                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        finalHolder2.imv1.setImageBitmap(img);
                    }
                });
            }
        }).start();
    }
        return view;
    }

}

    class ViewHolder{
        TextView tx1;
        ImageView im1,im2,im3;
    }
    class ViewHolder1{
        TextView tv1;
        ImageView iv1,iv2;
    }
    class ViewHolder2 {
        TextView tt1;
        ImageView imv1;
    }
    public Object getInto() {
        new AsyncTask<String, Integer, String>() {
            @Override
            protected String doInBackground(String... strings) {
                String result=getConn();
                return result;
            }

            @Override
            protected void onPostExecute(String result) {
                Gson gson=new Gson();
                be=gson.fromJson(result,Bean.class);
                dateBean =be.getResult().getData();
                adapter = new MyAdapter();
                lv.setAdapter(adapter);
                super.onPostExecute(result);
            }
        }.execute();

        return null;
    }

    public String getConn() {
        String result="";
        String path="http://v.juhe.cn/toutiao/index?type=top&key=2f092bd9ce76c0257052d6d3c93c11b4";
        try {
            URL url=new URL(path);
            HttpURLConnection conn= (HttpURLConnection) url.openConnection();
            conn.setRequestMethod("GET");
            conn.setConnectTimeout(5000);
            conn.setReadTimeout(5000);
            int code=conn.getResponseCode();
            if(code==200){
                InputStream is=conn.getInputStream();
                ByteArrayOutputStream bos=new ByteArrayOutputStream();
                int leng=-1;
                byte[] buff=new byte[1024];
                while((leng=is.read(buff))!=-1){
                     bos.write(buff,0,leng);
                }
                result=new String(bos.toByteArray());
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return result;
    }
}