Android中ExpandableListView控件基本使用

             本文采用一个Demo来展示Android中ExpandableListView控件的使用，如如何在组/子ListView中绑定数据源。直接上代码如下：

程序结构图：

layout目录下的 main.xml 文件源码如下：

包 com.andyidea.demo中ContactsActivity.java源码如下：

package com.andyidea.demo;

import java.util.ArrayList;
import java.util.List;

import android.app.ExpandableListActivity;
import android.os.Bundle;
import android.view.Gravity;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.widget.AbsListView;
import android.widget.BaseExpandableListAdapter;
import android.widget.TextView;

public class ContactsActivity extends ExpandableListActivity {
	
	List group;           //组列表
	List> child;     //子列表
	ContactsInfoAdapter adapter;  //数据适配器
	
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);  //设置为无标题
        setContentView(R.layout.main);
        getExpandableListView().setBackgroundResource(R.drawable.default_bg);
        
        initializeData();
        getExpandableListView().setAdapter(new ContactsInfoAdapter());
        getExpandableListView().setCacheColorHint(0);  //设置拖动列表的时候防止出现黑色背景
    }
    
    /**
     * 初始化组、子列表数据
     */
    private void initializeData(){
    	group = new ArrayList();
    	child = new ArrayList>();
    	
    	addInfo("Andy",new String[]{"male","138123***","GuangZhou"});
    	addInfo("Fairy",new String[]{"female","138123***","GuangZhou"});
    	addInfo("Jerry",new String[]{"male","138123***","ShenZhen"});
    	addInfo("Tom",new String[]{"female","138123***","ShangHai"});
    	addInfo("Bill",new String[]{"male","138231***","ZhanJiang"});
    	
    }
    
    /**
     * 模拟给组、子列表添加数据
     * @param g-group
     * @param c-child
     */
    private void addInfo(String g,String[] c){
    	group.add(g);
    	List childitem = new ArrayList();
    	for(int i=0;i

最后，程序运行后截图如下：