F_轮播 listview刷新

package com.example.w.lianxi55;

import android.annotation.SuppressLint;
import android.os.AsyncTask;
import android.os.Handler;
import android.os.Message;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;

import com.google.gson.Gson;
import com.handmark.pulltorefresh.library.PullToRefreshBase;
import com.handmark.pulltorefresh.library.PullToRefreshListView;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import java.util.List;

import adapter.MyAdapter;
import adapter.MyAdapter1;
import bean.ListBean;
import bean.LunBoBean;
import http.HttpUtils;

public class MainActivity extends AppCompatActivity {

    private PullToRefreshListView pull_listView;
    private ViewPager my_view_page;
    private LinearLayout linear_layout;
    private int page=2;
    private String uri="https://www.zhaoapi.cn/quarter/getAd";
    private String uri_list="https://www.zhaoapi.cn/product/searchProducts?keywords=%E6%89%8B%E6%9C%BA&source=android&page=";
    private HttpUtils httpUtils;
    private ArrayList<ImageView> image;
    private List<LunBoBean.DataBean> beanData;
    private  ArrayList<ListBean.DataBean> list = new ArrayList<>();
    @SuppressLint("HandlerLeak")
    Handler handler=new Handler(){
        @Override
        public void handleMessage(Message msg) {
            super.handleMessage(msg);
            int item = my_view_page.getCurrentItem();
            my_view_page.setCurrentItem(item+1);
            point((item+1)%beanData.size());
            handler.sendEmptyMessageDelayed(0,2000);
        }
    };
    private MyAdapter1 myAdapter1;

    private void point(int i) {
        for (int j=0;j<image.size();j++){
            if (j == i) {
                image.get(j).setImageResource(R.drawable.red);
            } else {
                image.get(j).setImageResource(R.drawable.white);
            }

        }
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        pull_listView = findViewById(R.id.pull_listView);
        ListView refreshableView = pull_listView.getRefreshableView();
        View view = View.inflate(MainActivity.this, R.layout.item_layout, null);
        my_view_page = view.findViewById(R.id.my_view_page);
        linear_layout = view.findViewById(R.id.linear_layout);
        refreshableView.addHeaderView(view);
        image = new ArrayList<>();
        new load().execute(uri);
        pull_listView.setMode(PullToRefreshBase.Mode.BOTH);
        pull_listView.setOnRefreshListener(new PullToRefreshBase.OnRefreshListener2<ListView>() {
            @Override
            public void onPullDownToRefresh(PullToRefreshBase<ListView> refreshView) {
                page=1;
                httpUtils.get(uri_list+page);

            }

            @Override
            public void onPullUpToRefresh(PullToRefreshBase<ListView> refreshView) {
                page++;
                httpUtils.get(uri_list+page);

            }
        });


        loaddata();

    }

    private void loaddata() {
        httpUtils=HttpUtils.getInstance();
        httpUtils.get(uri_list+page);

        httpUtils.setCallback(new HttpUtils.NetCallback() {
            @Override
            public void onsuccess(String s) {
                Gson gson = new Gson();
                ListBean bean = gson.fromJson(s, ListBean.class);
                myAdapter1 = new MyAdapter1(MainActivity.this, bean.getData());
                pull_listView.setAdapter(myAdapter1);
               /* if (page==1) {
                    list.clear();
                }
                list.addAll(bean.getData());
                myAdapter1.notifyDataSetChanged();*/
                pull_listView.onRefreshComplete();

            }

            @Override
            public void onerror(String errormsg) {

            }
        });
    }


    class load extends AsyncTask<String,Void,String>{

        @Override
        protected String doInBackground(String... strings) {

            try {
                URL url = new URL(strings[0]);
                HttpURLConnection connection = (HttpURLConnection) url.openConnection();
                connection.setConnectTimeout(5000);
                connection.setReadTimeout(5000);
                if (connection.getResponseCode()==200) {
                    return InputStream(connection.getInputStream());
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
            return null;
        }

        @Override
        protected void onPostExecute(String s) {
            super.onPostExecute(s);
            Gson gson = new Gson();
            LunBoBean bean = gson.fromJson(s, LunBoBean.class);
            beanData = bean.getData();
            MyAdapter myAdapter = new MyAdapter(MainActivity.this, beanData);
            my_view_page.setAdapter(myAdapter);
            changePoint(beanData.size());
            handler.sendEmptyMessageDelayed(0,2000);
        }
    }

    private void changePoint(int size) {
        for (int i=0;i<size;i++){
            ImageView imageView = new ImageView(MainActivity.this);
            imageView.setScaleType(ImageView.ScaleType.FIT_XY);
            if (i == 0) {
                imageView.setImageResource(R.drawable.red);
            } else {
                imageView.setImageResource(R.drawable.white);
            }

            LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(30, 30);
            linear_layout.addView(imageView,params);
            image.add(imageView);
        }
    }

    private String InputStream(InputStream inputStream) throws IOException {
        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
        int len=-1;
        byte[] bytes = new byte[1024];
        while ((len=inputStream.read(bytes))!=-1) {
            outputStream.write(bytes,0,len);
        }
        return new String(outputStream.toByteArray());
    }
}