AndroidStudio xlistview 多条目加载

思路:
1 BaseAdapter 适配器
2 多个条目布局文件
3 适配器方法

在这里插入代码片
```public class MyAdapter extends BaseAdapter {
    private Context context;
    private List<JsonBean.DataBean> list;

    public MyAdapter(Context context, List<JsonBean.DataBean> list) {
        this.context = context;
        this.list = list;
    }

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

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

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

    @Override
    public int getViewTypeCount() {
        return 3;
    }
//这里是循环输出条目 排列就是 条目1 条目2 条目3 条目1 条目2 条目3···
    @Override
    public int getItemViewType(int position) {
        return position % 3;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        switch (getItemViewType(position)){
            case 0:
                MyHandler myHandler;
                if(convertView == null){
                    myHandler = new MyHandler();
                    convertView = View.inflate(context,R.layout.item_gridview,null);
                    myHandler.textview = convertView.findViewById(R.id.textview);
                    myHandler.itme_image = convertView.findViewById(R.id.item_image);
                    convertView.setTag(myHandler);
                }else{
                    myHandler = (MyHandler) convertView.getTag();
                }
                JsonBean.DataBean dataBean = list.get(position);
                myHandler.textview.setText(dataBean.getNews_title());
                ImageLoader.getInstance().displayImage(dataBean.getPic_url(),myHandler.itme_image);
                break;
            case 1:
                MyHandler1 myHandler1;
                if(convertView==null){
                    myHandler1 = new MyHandler1();
                    convertView = View.inflate(context,R.layout.item_2,null);
                    myHandler1.item_2_text1 = convertView.findViewById(R.id.item_2_text1);
                    myHandler1.item_2_text2 = convertView.findViewById(R.id.item_2_text2);
                    myHandler1.item_2_image = convertView.findViewById(R.id.item_2_image);
                    convertView.setTag(myHandler1);
                }else{
                    myHandler1 = (MyHandler1) convertView.getTag();
                }
                JsonBean.DataBean dataBean1 = list.get(position);
                myHandler1.item_2_text1.setText(dataBean1.getNews_title());
                myHandler1.item_2_text2.setText(dataBean1.getNews_summary());
                ImageLoader.getInstance().displayImage(dataBean1.getPic_url(),myHandler1.item_2_image);
                break;
            case 2:
                MyHandler2 myHandler2;
                if(convertView==null){
                    myHandler2 = new MyHandler2();
                    convertView = View.inflate(context,R.layout.item_3,null);
                    myHandler2.item_3_text = convertView.findViewById(R.id.item_3_text);
                    convertView.setTag(myHandler2);
                }else{
                    myHandler2 = (MyHandler2) convertView.getTag();
                }
                JsonBean.DataBean dataBean2= list.get(position);
                myHandler2.item_3_text.setText(dataBean2.getNews_title());
                break;
        }
        return convertView;
    }
    class MyHandler{
        TextView textview;
        ImageView itme_image;
    }
    class MyHandler1{
        TextView item_2_text1;
        TextView item_2_text2;
        ImageView item_2_image;
    }class MyHandler2{
        TextView item_3_text;
    }
}