XListView适配器

package com.bw.moreitemshow.adapter;

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.bw.moreitemshow.MainActivity;
import com.bw.moreitemshow.R;
import com.bw.moreitemshow.bean.News;
import com.nostra13.universalimageloader.core.DisplayImageOptions;
import com.nostra13.universalimageloader.core.ImageLoader;
import com.nostra13.universalimageloader.core.display.RoundedBitmapDisplayer;

import java.util.List;

/**
 * @Auther: jiangnengbao
 * @Date: 2019/1/4 16:33:03
 * @Description:
 */
public class MyAdapter extends BaseAdapter {
    //条目类型必须从0开始
    private final static int TYPE_ONE = 0;

    private final static int TYPE_TWO = 1;

    Context context;
    List data;

    public MyAdapter(Context context, List data) {
        this.context = context;
        this.data = data;
    }

    //条目类型数量
    @Override
    public int getViewTypeCount() {
        return 2;
    }

    //根据数据判断类型
    @Override
    public int getItemViewType(int position) {

        if (position == 24 || position == 29) {
            return TYPE_TWO;
        } else {
            return TYPE_ONE;
        }


    }

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

    @Override
    public Object getItem(int position) {
        return data.get(position);
    }

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

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        ViewHolder1 viewHolder1 = null;
        ViewHolder2 viewHolder2 = null;
        //先获取条目类型

        int itemViewType = getItemViewType(position);

        if (convertView == null) {
            //根据类型加载布局
            if (itemViewType == TYPE_ONE) {

                convertView = View.inflate(context, R.layout.item1, null);

                viewHolder1 = new ViewHolder1();
                viewHolder1.tv_title1 = convertView.findViewById(R.id.tv_title1);
                viewHolder1.iv_head1 = convertView.findViewById(R.id.iv_head1);

                convertView.setTag(viewHolder1);
            } else {
                convertView = View.inflate(context, R.layout.item2, null);

                viewHolder2 = new ViewHolder2();
                viewHolder2.tv_title2 = convertView.findViewById(R.id.tv_title2);
                viewHolder2.iv_head2 = convertView.findViewById(R.id.iv_head2);
                viewHolder2.iv_head22 = convertView.findViewById(R.id.iv_head22);
                convertView.setTag(viewHolder2);
            }


        } else {
            //根据类型复用
            if (itemViewType == TYPE_ONE) {
                viewHolder1 = (ViewHolder1) convertView.getTag();
            } else {
                viewHolder2 = (ViewHolder2) convertView.getTag();
            }

        }

        News.DataBean dataBean = data.get(position);

        //DisplayImageOptions自己设置

        DisplayImageOptions options = new DisplayImageOptions.Builder()
                .showImageOnFail(R.mipmap.ic_launcher_round)
                .displayer(new RoundedBitmapDisplayer(30))
                .build();

        //根据类型获取数据并展示
        if (itemViewType == TYPE_ONE) {

            viewHolder1.tv_title1.setText(dataBean.getTitle());


            ImageLoader.getInstance().displayImage(dataBean.getThumbnail_pic_s(), viewHolder1.iv_head1,options);

        } else {
            viewHolder2.tv_title2.setText(dataBean.getTitle());


            ImageLoader.getInstance().displayImage(dataBean.getThumbnail_pic_s(), viewHolder2.iv_head2,options);

            ImageLoader.getInstance().displayImage(dataBean.getThumbnail_pic_s02(), viewHolder2.iv_head22,options);

        }


        return convertView;
    }


    private class ViewHolder1 {

        private TextView tv_title1;
        private ImageView iv_head1;

    }

    private class ViewHolder2 {

        private TextView tv_title2;
        private ImageView iv_head2;
        private ImageView iv_head22;


    }
}