二listview多条目加载

来源：互联网发布：香港旅游知乎编辑：程序博客网时间：2024/06/06 20:17

//Mactivity   需要封装

package com.example.cxk20170906;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.ListView;import android.widget.TextView;import java.util.ArrayList;public class MainActivity extends AppCompatActivity {    private ListView lv;    Madapter madapter;    ArrayList<Student> list;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        //获取控件        lv=(ListView) findViewById(R.id.lv);        //添加数据        initData();        //添加适配器        madapter= new Madapter();        //添加到listview        lv.setAdapter(madapter);    }    private void initData() {        //创建集合        list = new ArrayList<Student>();        list.add(new Student("张三",0));        list.add(new Student("李四","20",1));        list.add(new Student("张三",0));        list.add(new Student("李四","20",1));        list.add(new Student("张三",0));        list.add(new Student("李四","20",1));        list.add(new Student("张三",0));        list.add(new Student("李四","20",1));        list.add(new Student("张三",0));        list.add(new Student("李四","20",1));        list.add(new Student("张三",0));        list.add(new Student("李四","20",1));        list.add(new Student("张三",0));        list.add(new Student("李四","20",1));        list.add(new Student("张三",0));        list.add(new Student("李四","20",1));        list.add(new Student("张三",0));        list.add(new Student("李四","20",1));    }    class Madapter extends BaseAdapter{        @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;        }       //优化        @Override        public View getView(int position, View convertView, ViewGroup parent) {            int tipeid = list.get(position).getTipeid();            switch (tipeid){                case 0:                      ViewHolder1 vh1;                    if (convertView==null){                       convertView= View.inflate(MainActivity.this,R.layout.list1,null);                        vh1 = new ViewHolder1();                       vh1.tv1=(TextView) convertView.findViewById(R.id.tv1);                        convertView.setTag(vh1);                    }else{                       vh1=(ViewHolder1) convertView.getTag();                    }                    vh1.tv1.setText(list.get(position).getName());                    break;                case 1:                    ViewHolder2 vh2;                    if (convertView==null){                        convertView=View.inflate(MainActivity.this,R.layout.list2,null);                        vh2 = new ViewHolder2();                        vh2.tv2=(TextView) convertView.findViewById(R.id.tv2);                        vh2.tv3=(TextView) convertView.findViewById(R.id.tv3);                        convertView.setTag(vh2);                    }else{                       vh2=(ViewHolder2) convertView.getTag();                    }                    vh2.tv2.setText(list.get(position).getName());                    vh2.tv3.setText(list.get(position).getAge());                    break;            }            return convertView;        }        //返回条目的类型        @Override        public int getItemViewType(int position) {            return list.get(position).getTipeid();        }        //返回条目的类型个数        @Override        public int getViewTypeCount() {            return 2;        }    }    class ViewHolder1{        TextView tv1;    }    class ViewHolder2{        TextView tv2;        TextView tv3;    }}

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