Android ExpandableListView展开列表控件使用实例

expandList.setAdapter(sela);
就可以了。 当然， 响应事件Listener也可以自己添加。

附：另一个例子

ExpandableListView的用法与ListView和GridView,Gallery 类似,都是通过一个Adapter来显示.
main.xml:

复制代码 <?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://www.easck.com/apk/res/android"
    android:orientation="vertical" android:layout_width="fill_parent"
    android:layout_height="fill_parent">
    <ExpandableListView android:id="@+id/elv" android:indicatorRight="160dp"
        android:layout_width="fill_parent" android:layout_height="fill_parent">
    </ExpandableListView>
    <!-- indicatorRight 设置那个小图标右边缘与 ExpandableListView左边缘的间距-->
</LinearLayout>
ElvAdapter.java
复制代码 package com.test;
 
import java.util.ArrayList;
 
import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseExpandableListAdapter;
import android.widget.ExpandableListView;
import android.widget.TextView;
import android.widget.LinearLayout.LayoutParams;
 
public class ElvAdapter extends BaseExpandableListAdapter
{
 
    ArrayList<ElvObject> objs;
    Context context;
    ElvAdapter(Context context,ArrayList<ElvObject> objs)
    {
        this.objs=objs;
        this.context=context;
    }
    @Override
    public Object getChild(int groupPosition, int childPosition)
    {
        // TODO Auto-generated method stub
        return objs.get(groupPosition).childs.get(childPosition);
    }
 
    @Override
    public long getChildId(int groupPosition, int childPosition)
    {
        // TODO Auto-generated method stub
        return childPosition;
    }
 
    @Override
    public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent)