ViewpageAdapter

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.AsyncTask;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

import com.example.weekend_03.utils.ImageLoaderUtils;
import com.google.gson.Gson;
import com.nostra13.universalimageloader.core.ImageLoader;

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;

/**
 * Created by lenovo on 2017/12/19.
 */

class MyAdapter extends BaseAdapter{
    private List<Result.DataBean>list;
    private Context context;
    public MyAdapter(List<Result.DataBean> list, Context context) {
        this.list = list;
        this.context = context;
    }
    //定义了两个常量，注意定义的常量值一定要小于 类型的总数 （2）
    private final int HAS_IMAGE=0;//有图
    private final int NO_IMAGE=1;//无图

    //得到item条目的类型总数
    @Override
    public int getViewTypeCount() {
        return 2;
    }

    //根据条目的下标，返回此条目对应的类型，返回值是int类型
    //position：item的索引值，下标
    @Override
    public int getItemViewType(int position) {
        if(list.get(position).getIMAGEURL()==null){//偶数，返回无图类型
            return NO_IMAGE;
        }else{
            return HAS_IMAGE;
        }
    }

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

    @Override
    public Object getItem(int i) {
        return list.get(i);
    }

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

    @Override
    public View getView(int i, View view, ViewGroup viewGroup) {

        if (getItemViewType(i)==HAS_IMAGE){
            view = View.inflate(context,R.layout.itme,null);
            TextView title = view.findViewById(R.id.title);
            ImageView img = view.findViewById(R.id.img);

            title.setText(list.get(i).getTITLE());
            Log.d("zzz",list.get(i).getIMAGEURL());
            ImageLoader.getInstance().displayImage(list.get(i).getIMAGEURL(),img, ImageLoaderUtils.getImageOptions(context));

        }else{
            view = View.inflate(context,R.layout.itme_1,null);
            TextView text1 = view.findViewById(R.id.text1);
            text1.setText(list.get(i).getTITLE());

        }

        return view;
    }

}

========================================================================================

import android.content.Context;
import android.content.Intent;
import android.support.v4.view.PagerAdapter;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;

import com.example.weekend_03.utils.ImageLoaderUtils;
import com.nostra13.universalimageloader.core.ImageLoader;

import java.util.List;

/**
 * Created by lenovo on 2017/12/19.
 */

class MyPagerAdapter extends PagerAdapter {
    private List<String>urls;
    private Context context;

    public MyPagerAdapter(List<String> urls, Context context) {
        this.urls = urls;
        this.context = context;
    }

    @Override
    public int getCount() {
        return Integer.MAX_VALUE;
    }

    @Override
    public boolean isViewFromObject(View view, Object object) {
        return view==object;
    }

    @Override
    public Object instantiateItem(ViewGroup container, int position) {
        ImageView imageView=new ImageView(context);
        //加载显示图片
        ImageLoader.getInstance().displayImage(urls.get(position%urls.size()),imageView, ImageLoaderUtils.getImageOptions(context));
        //添加进去
        container.addView(imageView);

        //添加点击事件
        imageView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent intent =new Intent(context,Main2Activity.class);
                intent.putExtra("key","http://www.baidu.com");
                context.startActivity(intent);
            }
        });
        return imageView;
    }

    @Override
    public void destroyItem(ViewGroup container, int position, Object object) {

        container.removeView((View) object);
    }
}