07_ListView使用1

package com.example.listviewdemo;

import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;

public class MainActivity extends ActionBarActivity implements OnItemClickListener {

    private ListView lv;
    private ArrayAdapter<ListCellData> adapter;
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        adapter = new ArrayAdapter<ListCellData>(this, android.R.layout.simple_expandable_list_item_1);
//        adapter = new ArrayAdapter<String>(this, R.layout.lsit_cell);
        
        lv = (ListView) findViewById(R.id.listView1);
        lv.setAdapter(adapter);
        
        adapter.add(new ListCellData("张三", "男", 45));
        adapter.add(new ListCellData("李四", "男", 22));
        adapter.add(new ListCellData("王五", "女", 33));
        
        lv.setOnItemClickListener(this);
        
//        adapter.add("Hello");
//        adapter.add("What?");
    }

    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position,
            long id) {
        ListCellData data = adapter.getItem(position);
        
        Toast.makeText(this, String.format("名字： %s, 性别： %s, 年龄： %d", data.getUserName(), data.getSex(), data.getAge()), Toast.LENGTH_SHORT).show();

        
    }

}