//Gson解析 加多条目展示 加上拉刷新 下拉加载

import android.content.Intent;
import android.os.Handler;
import android.os.Message;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;

import com.example.asus.application.activity.threeActivity;
import com.example.asus.application.baseadapter.BaseAdapter;
import com.example.asus.application.bean.Bean;
import com.google.gson.Gson;
import com.handmark.pulltorefresh.library.PullToRefreshBase;
import com.handmark.pulltorefresh.library.PullToRefreshListView;

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

public class MainActivity extends BaseAdapter {
    private PullToRefreshListView listView;
    private MyAdapter adapter;
    private int count=10;
    private List<Bean.ResultBean.DataBean> list;
    private String path="http://172.17.8.100/mobile/exam/findNewList";
    private Handler handler=new Handler(){
        @Override
        public void handleMessage(Message msg) {
            super.handleMessage(msg);
            String json= (String) msg.obj;
            Gson gson = new Gson();
            Bean bean = gson.fromJson(json, Bean.class);
            if(count==10){
                list.clear();
            }
            list.addAll(bean.getResult().getData());
            adapter.notifyDataSetChanged();
            listView.onRefreshComplete();
        }
    };
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        listView = findViewById(R.id.pullt);
        listView.setMode(PullToRefreshBase.Mode.BOTH);
        listView.setOnRefreshListener(new PullToRefreshBase.OnRefreshListener2<ListView>() {
            @Override
            public void onPullDownToRefresh(PullToRefreshBase<ListView> refreshView) {
                count=10;
                getsear(path);
            }

            @Override
            public void onPullUpToRefresh(PullToRefreshBase<ListView> refreshView) {
                count++;
                getsear(path);
            }
        });
        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
                Bean.ResultBean.DataBean item = (Bean.ResultBean.DataBean) adapter.getItem(i);
                Intent it=new Intent(MainActivity.this,threeActivity.class);
                it.putExtra("url",item.getUrl());
                startActivity(it);
                finish();
            }
        });
        list=new ArrayList<>();
        adapter = new MyAdapter(list, this);
        listView.setAdapter(adapter);
        getsear(path);
    }

    private void getsear(final String path) {
        new Thread(){
            @Override
            public void run() {
                try {
                    URL url=new URL(path);
                    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
                    connection.setConnectTimeout(5000);
                    connection.setReadTimeout(5000);
                    connection.setRequestMethod("GET");
                    if(connection.getResponseCode()==200){
                        InputStream inputStream =connection.getInputStream();
                        ByteArrayOutputStream bos = new ByteArrayOutputStream();
                        int len=-1;
                        byte[] buttf=new byte[1024];
                        while ((len=inputStream.read(buttf))!=-1){
                            bos.write(buttf,0,len);
                        }
                        bos.close();
                        inputStream.close();
                        String json=bos.toString();
                        Message message = new Message();
                        message.what=0;
                        message.obj=json;
                        handler.sendMessage(message);
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                }
                super.run();

            }
        }.start();
    }

}