ExpandableListAdapter 用法

package com.quding.listview;

import android.app.Activity;
import android.database.DataSetObserver;
import android.graphics.Color;
import android.os.Bundle;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ExpandableListAdapter;
import android.widget.ExpandableListView;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;

/**
 * 数据：一维或二维数组 == 定义adapter == 为listview添加adapter
 */

public class ListViewActivity extends Activity {
	private String[][] child = {
			{ "11111", "22222", "33333", "44444", "55555" },
			{ "11111", "22222", "33333", "44444", "55555" },
			{ "11111", "22222", "33333", "44444", "55555" },
			{ "11111", "22222", "33333", "44444", "55555" } };
	private String group[] = { "group1", "group2", "group3", "group4", };

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);

		ExpandableListView mExpandableListView = (ExpandableListView) findViewById(R.id.eapandable_listview);
		mExpandableListView.setBackgroundColor(Color.LTGRAY);

//		// 头和尾
//		TextView text1 = new TextView(getApplicationContext());
//		text1.setText("first1");
//		mListView.addHeaderView(text1);
//		TextView text3 = new TextView(getApplicationContext());
//		text3.setText("first2");
//		mListView.addHeaderView(text3);
//
//		TextView text2 = new TextView(getApplicationContext());
//		text2.setText("end");
//		mListView.addFooterView(text2);

		mExpandableListView.setAdapter(new ExpandableListAdapter() {
			@Override
			public void unregisterDataSetObserver(DataSetObserver observer) {
				// TODO Auto-generated method stub
				
			}
			
			@Override
			public void registerDataSetObserver(DataSetObserver observer) {
				// TODO Auto-generated method stub
				
			}
			
			@Override
			public void onGroupExpanded(int groupPosition) {
				// TODO Auto-generated method stub
				
			}
			
			@Override
			public void onGroupCollapsed(int groupPosition) {
				// TODO Auto-generated method stub
				
			}
			
			@Override
			public boolean isEmpty() {
				return false;
			}
			
			@Override
			public boolean isChildSelectable(int groupPosition, int childPosition) {
				return true;
			}
			
			@Override
			public boolean hasStableIds() {
				return true;
			}
			
			@Override
			public View getGroupView(int groupPosition, boolean isExpanded,
					View convertView, ViewGroup parent) {
				TextView mTextView = new TextView(getApplicationContext());
				mTextView.setText(group[groupPosition]);
				mTextView.setTextColor(Color.RED);
				mTextView.setPadding(40, 0, 0, 0);
				mTextView.setTextSize(20);
				
				return mTextView;
			}
			
			@Override
			public long getGroupId(int groupPosition) {
				return groupPosition;
			}
			
			@Override
			public int getGroupCount() {
				return group.length;
			}
			
			@Override
			public Object getGroup(int groupPosition) {
				return group[groupPosition];
			}
			
			@Override
			public long getCombinedGroupId(long groupId) {
				return 0;
			}
			
			@Override
			public long getCombinedChildId(long groupId, long childId) {
				return 0;
			}
			
			@Override
			public int getChildrenCount(int groupPosition) {
				return child[0].length;
			}
			
			@Override
			public View getChildView(int groupPosition, int childPosition,
					boolean isLastChild, View convertView, ViewGroup parent) {
				TextView mTextView = new TextView(getApplicationContext());
				mTextView.setText(child[groupPosition][childPosition]);
				mTextView.setTextColor(Color.BLUE);
				mTextView.setGravity(Gravity.CENTER);
				mTextView.setTextSize(15);
				
				return mTextView;
			}
			
			@Override
			public long getChildId(int groupPosition, int childPosition) {
				return childPosition;
			}
			
			@Override
			public Object getChild(int groupPosition, int childPosition) {
				return child[groupPosition][childPosition];
			}
			
			@Override
			public boolean areAllItemsEnabled() {
				return true;
			}
		});
	}
}