Android中ListView最简单的用法

package com.chenliang.demo;import java.util.ArrayList;import android.app.Activity;import android.os.Bundle;import android.widget.ArrayAdapter;import android.widget.ListView;public class MyListView extends Activity {ListView mylv;public void onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState);mylv = new ListView(this);mylv.setAdapter(new ArrayAdapter<String>(this,android.R.layout.simple_expandable_list_item_1,getData()));this.setContentView(mylv);}//  所要添加到的listview上的数据private ArrayList<String> getData() {// TODO Auto-generated method stubArrayList<String> alist = new ArrayList<String>();alist.add("=======001======");alist.add("=======002======");alist.add("=======003======");return alist;}}

此段代码显示1列3行listview数据。其中调用了android系统自带布局ID：android.R.layout.simple_expandable_list_item_1